Merge commit 'mainstream/master'

Conflicts:
	actionpack/lib/action_controller.rb
	actionpack/lib/action_controller/base/base.rb
	actionpack/lib/action_view/template/path.rb
	activesupport/lib/active_support/json/encoders/hash.rb

150 files changed, 2496 insertions, 4301 deletions

diff --git a/actionpack/Rakefile b/actionpack/Rakefile
index 5f5614e58f..1fc5018561 100644
--- a/actionpack/Rakefile
+++ b/actionpack/Rakefile
@@ -22,9 +22,11 @@ task :default => [ :test ]
 # Run the unit tests
 
 desc "Run all unit tests"
-task :test => [:test_action_pack, :test_active_record_integration, :test_new_base, :test_new_base_on_old_tests]
+task :test => [:test_action_pack, :test_active_record_integration, :test_new_base]
 
-test_lib_dirs = [ENV["NEW"] ? "test/new_base" : "test", "test/lib"]
+test_lib_dirs = ENV["NEW"] ? ["test/new_base"] : []
+test_lib_dirs.push "test", "test/lib"
+# test_lib_dirs = [ENV["NEW"] ? "test/new_base" : "test", "test/lib"]
 Rake::TestTask.new(:test_action_pack) do |t|
   t.libs.concat test_lib_dirs
 
@@ -35,6 +37,7 @@ Rake::TestTask.new(:test_action_pack) do |t|
   t.verbose = true
   #t.warning = true
 end
+
 task :isolated_test do
   ruby = File.join(*RbConfig::CONFIG.values_at('bindir', 'RUBY_INSTALL_NAME'))
   Dir.glob("test/{controller,dispatch,template}/**/*_test.rb").all? do |file|
@@ -112,7 +115,7 @@ spec = Gem::Specification.new do |s|
   s.has_rdoc = true
   s.requirements << 'none'
 
-  s.add_dependency('activesupport', '= 2.3.2' + PKG_BUILD)
+  s.add_dependency('activesupport', '= 3.0.pre' + PKG_BUILD)
 
   s.require_path = 'lib'
   s.autorequire = 'action_controller'
diff --git a/actionpack/lib/action_controller.rb b/actionpack/lib/action_controller.rb
index 4033bbcbad..e822a11d14 100644
--- a/actionpack/lib/action_controller.rb
+++ b/actionpack/lib/action_controller.rb
@@ -1,84 +1,62 @@
-#--
-# Copyright (c) 2004-2009 David Heinemeier Hansson
-#
-# Permission is hereby granted, free of charge, to any person obtaining
-# a copy of this software and associated documentation files (the
-# "Software"), to deal in the Software without restriction, including
-# without limitation the rights to use, copy, modify, merge, publish,
-# distribute, sublicense, and/or sell copies of the Software, and to
-# permit persons to whom the Software is furnished to do so, subject to
-# the following conditions:
-#
-# The above copyright notice and this permission notice shall be
-# included in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#++
-
-activesupport_path = "#{File.dirname(__FILE__)}/../../activesupport/lib"
-$:.unshift activesupport_path if File.directory?(activesupport_path)
-require 'active_support'
-
-require File.join(File.dirname(__FILE__), "action_pack")
-
 module ActionController
-  # TODO: Review explicit to see if they will automatically be handled by
-  # the initializer if they are really needed.
-  def self.load_all!
-    [Base, Request, Response, UrlRewriter, UrlWriter]
-    [ActionDispatch::Http::Headers]
-  end
+  autoload :Base,                 "action_controller/base/base"
+  autoload :ConditionalGet,       "action_controller/base/conditional_get"
+  autoload :HideActions,          "action_controller/base/hide_actions"
+  autoload :Http,                 "action_controller/base/http"
+  autoload :Layouts,              "action_controller/base/layouts"
+  autoload :RackConvenience,      "action_controller/base/rack_convenience"
+  autoload :Rails2Compatibility,  "action_controller/base/compatibility"
+  autoload :Redirector,           "action_controller/base/redirector"
+  autoload :Renderer,             "action_controller/base/renderer"
+  autoload :RenderOptions,        "action_controller/base/render_options"
+  autoload :Renderers,            "action_controller/base/render_options"
+  autoload :Rescue,               "action_controller/base/rescuable"
+  autoload :Testing,              "action_controller/base/testing"
+  autoload :UrlFor,               "action_controller/base/url_for"
+  autoload :Session,              "action_controller/base/session"
+  autoload :Helpers,              "action_controller/base/helpers"
 
-  autoload :Base, 'action_controller/base/base'
-  autoload :Benchmarking, 'action_controller/base/chained/benchmarking'
-  autoload :Caching, 'action_controller/caching'
-  autoload :Cookies, 'action_controller/base/cookies'
-  autoload :Dispatcher, 'action_controller/dispatch/dispatcher'
-  autoload :Filters, 'action_controller/base/chained/filters'
-  autoload :Flash, 'action_controller/base/chained/flash'
-  autoload :Helpers, 'action_controller/base/helpers'
-  autoload :HttpAuthentication, 'action_controller/base/http_authentication'
-  autoload :Integration, 'action_controller/testing/integration'
-  autoload :IntegrationTest, 'action_controller/testing/integration'
-  autoload :Layout, 'action_controller/base/layout'
-  autoload :MimeResponds, 'action_controller/base/mime_responds'
+  # Ported modules
+  # require 'action_controller/routing'
+  autoload :Caching,           'action_controller/caching'
+  autoload :Dispatcher,        'action_controller/dispatch/dispatcher'
+  autoload :Integration,       'action_controller/testing/integration'
+  autoload :MimeResponds,      'action_controller/base/mime_responds'
   autoload :PolymorphicRoutes, 'action_controller/routing/generation/polymorphic_routes'
-  autoload :RecordIdentifier, 'action_controller/record_identifier'
-  autoload :Redirector, 'action_controller/base/redirect'
-  autoload :Renderer, 'action_controller/base/render'
-  autoload :RequestForgeryProtection, 'action_controller/base/request_forgery_protection'
-  autoload :Rescue, 'action_controller/base/rescue'
-  autoload :Resources, 'action_controller/routing/resources'
-  autoload :Responder, 'action_controller/base/responder'
-  autoload :Routing, 'action_controller/routing'
+  autoload :RecordIdentifier,  'action_controller/record_identifier'
+  autoload :Resources,         'action_controller/routing/resources'
   autoload :SessionManagement, 'action_controller/base/session_management'
-  autoload :Streaming, 'action_controller/base/streaming'
-  autoload :TestCase, 'action_controller/testing/test_case'
-  autoload :TestProcess, 'action_controller/testing/process'
-  autoload :Translation, 'action_controller/translation'
-  autoload :UrlEncodedPairParser, 'action_controller/dispatch/url_encoded_pair_parser'
-  autoload :UrlRewriter, 'action_controller/routing/generation/url_rewriter'
-  autoload :UrlWriter, 'action_controller/routing/generation/url_rewriter'
-  autoload :Verification, 'action_controller/base/verification'
-  autoload :FilterParameterLogging, 'action_controller/base/filter_parameter_logging'
+  autoload :TestCase,          'action_controller/testing/test_case'
+  autoload :TestProcess,       'action_controller/testing/process'
+  autoload :UrlRewriter,       'action_controller/routing/generation/url_rewriter'
+  autoload :UrlWriter,         'action_controller/routing/generation/url_rewriter'
+
+  autoload :Verification,             'action_controller/base/verification'
+  autoload :Flash,                    'action_controller/base/flash'
+  autoload :RequestForgeryProtection, 'action_controller/base/request_forgery_protection'
+  autoload :Streaming,                'action_controller/base/streaming'
+  autoload :HttpAuthentication,       'action_controller/base/http_authentication'
+  autoload :FilterParameterLogging,   'action_controller/base/filter_parameter_logging'
+  autoload :Translation,              'action_controller/translation'
+  autoload :Cookies,                  'action_controller/base/cookies'
+
+  autoload :ActionControllerError,    'action_controller/base/exceptions'
+  autoload :SessionRestoreError,      'action_controller/base/exceptions'
+  autoload :RenderError,              'action_controller/base/exceptions'
+  autoload :RoutingError,             'action_controller/base/exceptions'
+  autoload :MethodNotAllowed,         'action_controller/base/exceptions'
+  autoload :NotImplemented,           'action_controller/base/exceptions'
+  autoload :UnknownController,        'action_controller/base/exceptions'
+  autoload :MissingFile,              'action_controller/base/exceptions'
+  autoload :RenderError,              'action_controller/base/exceptions'
+  autoload :SessionOverflowError,     'action_controller/base/exceptions'
+  autoload :UnknownHttpMethod,        'action_controller/base/exceptions'
 
-  module Assertions
-    autoload :DomAssertions, 'action_controller/testing/assertions/dom'
-    autoload :ModelAssertions, 'action_controller/testing/assertions/model'
-    autoload :ResponseAssertions, 'action_controller/testing/assertions/response'
-    autoload :RoutingAssertions, 'action_controller/testing/assertions/routing'
-    autoload :SelectorAssertions, 'action_controller/testing/assertions/selector'
-    autoload :TagAssertions, 'action_controller/testing/assertions/tag'
-  end
+  require 'action_controller/routing'
 end
 
 autoload :HTML, 'action_controller/vendor/html-scanner'
+autoload :AbstractController, 'action_controller/abstract'
 
 require 'action_dispatch'
 require 'action_view'
diff --git a/actionpack/lib/action_controller/abstract.rb b/actionpack/lib/action_controller/abstract.rb
index f46b91627f..d0eba253b8 100644
--- a/actionpack/lib/action_controller/abstract.rb
+++ b/actionpack/lib/action_controller/abstract.rb
@@ -2,13 +2,15 @@ require "active_support/core_ext/module/attr_internal"
 require "active_support/core_ext/module/delegation"
 
 module AbstractController
-  autoload :Base,           "action_controller/abstract/base"
-  autoload :Benchmarker,    "action_controller/abstract/benchmarker"
-  autoload :Callbacks,      "action_controller/abstract/callbacks"
-  autoload :Helpers,        "action_controller/abstract/helpers"
-  autoload :Layouts,        "action_controller/abstract/layouts"
-  autoload :Logger,         "action_controller/abstract/logger"
-  autoload :Renderer,       "action_controller/abstract/renderer"
+  autoload :Base,               "action_controller/abstract/base"
+  autoload :Benchmarker,        "action_controller/abstract/benchmarker"
+  autoload :Callbacks,          "action_controller/abstract/callbacks"
+  autoload :Helpers,            "action_controller/abstract/helpers"
+  autoload :Layouts,            "action_controller/abstract/layouts"
+  autoload :Logger,             "action_controller/abstract/logger"
+  autoload :Renderer,           "action_controller/abstract/renderer"
   # === Exceptions
-  autoload :ActionNotFound, "action_controller/abstract/exceptions"
+  autoload :ActionNotFound,     "action_controller/abstract/exceptions"
+  autoload :DoubleRenderError,  "action_controller/abstract/exceptions"
+  autoload :Error,              "action_controller/abstract/exceptions"
 end
diff --git a/actionpack/lib/action_controller/abstract/base.rb b/actionpack/lib/action_controller/abstract/base.rb
index 87083a4d79..a19a236ef7 100644
--- a/actionpack/lib/action_controller/abstract/base.rb
+++ b/actionpack/lib/action_controller/abstract/base.rb
@@ -1,53 +1,65 @@
 require 'active_support/core_ext/module/attr_internal'
 
 module AbstractController
-  class Error < StandardError; end
-
-  class DoubleRenderError < Error
-    DEFAULT_MESSAGE = "Render and/or redirect were called multiple times in this action. Please note that you may only call render OR redirect, and at most once per action. Also note that neither redirect nor render terminate execution of the action, so if you want to exit an action after redirecting, you need to do something like \"redirect_to(...) and return\"."
-
-    def initialize(message = nil)
-      super(message || DEFAULT_MESSAGE)
-    end
-  end
 
   class Base
     attr_internal :response_body
-    attr_internal :response_obj
     attr_internal :action_name
 
     class << self
       attr_reader :abstract
+      alias_method :abstract?, :abstract
 
+      # Define a controller as abstract. See internal_methods for more
+      # details.
       def abstract!
         @abstract = true
       end
 
-      alias_method :abstract?, :abstract
-
       def inherited(klass)
-        ::AbstractController::Base.subclasses << klass.to_s
+        ::AbstractController::Base.descendants << klass.to_s
         super
       end
 
-      def subclasses
-        @subclasses ||= []
+      # A list of all descendents of AbstractController::Base. This is
+      # useful for initializers which need to add behavior to all controllers.
+      def descendants
+        @descendants ||= []
       end
 
+      # A list of all internal methods for a controller. This finds the first
+      # abstract superclass of a controller, and gets a list of all public
+      # instance methods on that abstract class. Public instance methods of
+      # a controller would normally be considered action methods, so we
+      # are removing those methods on classes declared as abstract
+      # (ActionController::Http and ActionController::Base are defined
+      # as abstract)
       def internal_methods
         controller = self
         controller = controller.superclass until controller.abstract?
         controller.public_instance_methods(true)
       end
 
-      def process(action)
-        new.process(action.to_s)
-      end
-
+      # The list of hidden actions to an empty Array. Defaults to an
+      # empty Array. This can be modified by other modules or subclasses
+      # to specify particular actions as hidden.
+      #
+      # ==== Returns
+      # Array[String]:: An array of method names that should not be
+      #                 considered actions.
       def hidden_actions
         []
       end
 
+      # A list of method names that should be considered actions. This
+      # includes all public instance methods on a controller, less
+      # any internal methods (see #internal_methods), adding back in
+      # any methods that are internal, but still exist on the class
+      # itself. Finally, #hidden_actions are removed.
+      #
+      # ==== Returns
+      # Array[String]:: A list of all methods that should be considered
+      #                 actions.
       def action_methods
         @action_methods ||=
           # All public instance methods of this class, including ancestors
@@ -63,10 +75,14 @@ module AbstractController
 
     abstract!
 
-    def initialize
-      self.response_obj = {}
-    end
-
+    # Calls the action going through the entire action dispatch stack.
+    # 
+    # The actual method that is called is determined by calling
+    # #method_for_action. If no method can handle the action, then an
+    # ActionNotFound error is raised.
+    #
+    # ==== Returns
+    # self
     def process(action)
       @_action_name = action_name = action.to_s
 
@@ -79,33 +95,63 @@ module AbstractController
     end
 
   private
-    def action_methods
-      self.class.action_methods
-    end
-
-    def action_method?(action)
-      action_methods.include?(action)
+    # Returns true if the name can be considered an action. This can
+    # be overridden in subclasses to modify the semantics of what
+    # can be considered an action.
+    #
+    # ==== Parameters
+    # name<String>:: The name of an action to be tested
+    #
+    # ==== Returns
+    # TrueClass, FalseClass
+    def action_method?(name)
+      self.class.action_methods.include?(name)
     end
 
-    # It is possible for respond_to?(action_name) to be false and
-    # respond_to?(:action_missing) to be false if respond_to_action?
-    # is overridden in a subclass. For instance, ActionController::Base
-    # overrides it to include the case where a template matching the
-    # action_name is found.
+    # Call the action. Override this in a subclass to modify the
+    # behavior around processing an action. This, and not #process,
+    # is the intended way to override action dispatching.
     def process_action(method_name)
       send_action(method_name)
     end
 
+    # Actually call the method associated with the action. Override
+    # this method if you wish to change how action methods are called,
+    # not to add additional behavior around it. For example, you would
+    # override #send_action if you want to inject arguments into the
+    # method.
     alias send_action send
 
+    # If the action name was not found, but a method called "action_missing"
+    # was found, #method_for_action will return "_handle_action_missing".
+    # This method calls #action_missing with the current action name.
     def _handle_action_missing
       action_missing(@_action_name)
     end
 
-    # Override this to change the conditions that will raise an
-    # ActionNotFound error. If you accept a difference case,
-    # you must handle it by also overriding process_action and
-    # handling the case.
+    # Takes an action name and returns the name of the method that will
+    # handle the action. In normal cases, this method returns the same
+    # name as it receives. By default, if #method_for_action receives
+    # a name that is not an action, it will look for an #action_missing
+    # method and return "_handle_action_missing" if one is found.
+    #
+    # Subclasses may override this method to add additional conditions
+    # that should be considered an action. For instance, an HTTP controller
+    # with a template matching the action name is considered to exist.
+    #
+    # If you override this method to handle additional cases, you may
+    # also provide a method (like _handle_method_missing) to handle
+    # the case.
+    #
+    # If none of these conditions are true, and method_for_action
+    # returns nil, an ActionNotFound exception will be raised.
+    #
+    # ==== Parameters
+    # action_name<String>:: An action name to find a method name for
+    #
+    # ==== Returns
+    # String:: The name of the method that handles the action
+    # nil::    No method name could be found. Raise ActionNotFound.
     def method_for_action(action_name)
       if action_method?(action_name) then action_name
       elsif respond_to?(:action_missing, true) then "_handle_action_missing"
diff --git a/actionpack/lib/action_controller/abstract/benchmarker.rb b/actionpack/lib/action_controller/abstract/benchmarker.rb
index 07294cede3..58e9564c2f 100644
--- a/actionpack/lib/action_controller/abstract/benchmarker.rb
+++ b/actionpack/lib/action_controller/abstract/benchmarker.rb
@@ -5,6 +5,16 @@ module AbstractController
     include Logger
 
     module ClassMethods
+      # Execute the passed in block, timing the duration of the block in ms.
+      #
+      # ==== Parameters
+      # title<#to_s>:: The title of block to benchmark
+      # log_level<Integer>:: A valid log level. Defaults to Logger::DEBUG
+      # use_silence<TrueClass, FalseClass>:: Whether or not to silence the
+      #   logger for the duration of the block.
+      #
+      # ==== Returns
+      # Object:: The result of the block
       def benchmark(title, log_level = ::Logger::DEBUG, use_silence = true)
         if logger && logger.level >= log_level
           result = nil
diff --git a/actionpack/lib/action_controller/abstract/callbacks.rb b/actionpack/lib/action_controller/abstract/callbacks.rb
index c6d3413c30..0d5161c80e 100644
--- a/actionpack/lib/action_controller/abstract/callbacks.rb
+++ b/actionpack/lib/action_controller/abstract/callbacks.rb
@@ -2,12 +2,17 @@ module AbstractController
   module Callbacks
     extend ActiveSupport::Concern
 
+    # Uses ActiveSupport::NewCallbacks as the base functionality. For
+    # more details on the whole callback system, read the documentation
+    # for ActiveSupport::NewCallbacks.
     include ActiveSupport::NewCallbacks
 
     included do
       define_callbacks :process_action, "response_body"
     end
 
+    # Override AbstractController::Base's process_action to run the
+    # process_action callbacks around the normal behavior.
     def process_action(method_name)
       _run_process_action_callbacks(method_name) do
         super
@@ -15,6 +20,17 @@ module AbstractController
     end
 
     module ClassMethods
+      # If :only or :accept are used, convert the options into the
+      # primitive form (:per_key) used by ActiveSupport::Callbacks.
+      # The basic idea is that :only => :index gets converted to
+      # :if => proc {|c| c.action_name == "index" }, but that the
+      # proc is only evaluated once per action for the lifetime of
+      # a Rails process.
+      #
+      # ==== Options
+      # :only<#to_s>:: The callback should be run only for this action
+      # :except<#to_s>:: The callback should be run for all actions
+      #   except this action
       def _normalize_callback_options(options)
         if only = options[:only]
           only = Array(only).map {|o| "action_name == '#{o}'"}.join(" || ")
@@ -26,35 +42,69 @@ module AbstractController
         end
       end
 
+      # Skip before, after, and around filters matching any of the names
+      #
+      # ==== Parameters
+      # *names<Object>:: A list of valid names that could be used for
+      #   callbacks. Note that skipping uses Ruby equality, so it's
+      #   impossible to skip a callback defined using an anonymous proc
+      #   using #skip_filter
+      def skip_filter(*names, &blk)
+        skip_before_filter(*names)
+        skip_after_filter(*names)
+        skip_around_filter(*names)
+      end
+
+      # Take callback names and an optional callback proc, normalize them,
+      # then call the block with each callback. This allows us to abstract
+      # the normalization across several methods that use it.
+      #
+      # ==== Parameters
+      # callbacks<Array[*Object, Hash]>:: A list of callbacks, with an optional
+      #   options hash as the last parameter.
+      # block<Proc>:: A proc that should be added to the callbacks.
+      #
+      # ==== Block Parameters
+      # name<Symbol>:: The callback to be added
+      # options<Hash>:: A list of options to be used when adding the callback
+      def _insert_callbacks(callbacks, block)
+        options = callbacks.last.is_a?(Hash) ? callbacks.pop : {}
+        _normalize_callback_options(options)
+        callbacks.push(block) if block
+        callbacks.each do |callback|
+          yield callback, options
+        end
+      end
+
+      # set up before_filter, prepend_before_filter, skip_before_filter, etc.
+      # for each of before, after, and around.
       [:before, :after, :around].each do |filter|
         class_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1
+          # Append a before, after or around filter. See _insert_callbacks
+          # for details on the allowed parameters.
           def #{filter}_filter(*names, &blk)
-            options = names.last.is_a?(Hash) ? names.pop : {}
-            _normalize_callback_options(options)
-            names.push(blk) if block_given?
-            names.each do |name|
-              process_action_callback(:#{filter}, name, options)
+            _insert_callbacks(names, blk) do |name, options|
+              set_callback(:process_action, :#{filter}, name, options)
             end
           end
 
+          # Prepend a before, after or around filter. See _insert_callbacks
+          # for details on the allowed parameters.
           def prepend_#{filter}_filter(*names, &blk)
-            options = names.last.is_a?(Hash) ? names.pop : {}
-            _normalize_callback_options(options)
-            names.push(blk) if block_given?
-            names.each do |name|
-              process_action_callback(:#{filter}, name, options.merge(:prepend => true))
+            _insert_callbacks(names, blk) do |name, options|
+              set_callback(:process_action, :#{filter}, name, options.merge(:prepend => true))
             end
           end
 
+          # Skip a before, after or around filter. See _insert_callbacks
+          # for details on the allowed parameters.
           def skip_#{filter}_filter(*names, &blk)
-            options = names.last.is_a?(Hash) ? names.pop : {}
-            _normalize_callback_options(options)
-            names.push(blk) if block_given?
-            names.each do |name|
-              skip_process_action_callback(:#{filter}, name, options)
+            _insert_callbacks(names, blk) do |name, options|
+              skip_callback(:process_action, :#{filter}, name, options)
             end
           end
 
+          # *_filter is the same as append_*_filter
           alias_method :append_#{filter}_filter, :#{filter}_filter
         RUBY_EVAL
       end
diff --git a/actionpack/lib/action_controller/abstract/exceptions.rb b/actionpack/lib/action_controller/abstract/exceptions.rb
index 2f6c55f068..b671516de1 100644
--- a/actionpack/lib/action_controller/abstract/exceptions.rb
+++ b/actionpack/lib/action_controller/abstract/exceptions.rb
@@ -1,3 +1,12 @@
 module AbstractController
+  class Error < StandardError; end
   class ActionNotFound < StandardError; end
+
+  class DoubleRenderError < Error
+    DEFAULT_MESSAGE = "Render and/or redirect were called multiple times in this action. Please note that you may only call render OR redirect, and at most once per action. Also note that neither redirect nor render terminate execution of the action, so if you want to exit an action after redirecting, you need to do something like \"redirect_to(...) and return\"."
+
+    def initialize(message = nil)
+      super(message || DEFAULT_MESSAGE)
+    end
+  end
 end
diff --git a/actionpack/lib/action_controller/abstract/helpers.rb b/actionpack/lib/action_controller/abstract/helpers.rb
index 0a2776de9c..6b73f887c1 100644
--- a/actionpack/lib/action_controller/abstract/helpers.rb
+++ b/actionpack/lib/action_controller/abstract/helpers.rb
@@ -5,33 +5,26 @@ module AbstractController
     include Renderer
 
     included do
-      extlib_inheritable_accessor :master_helper_module
-      self.master_helper_module = Module.new
+      extlib_inheritable_accessor(:_helpers) { Module.new }
     end
 
+    # Override AbstractController::Renderer's _action_view to include the
+    # helper module for this class into its helpers module.
     def _action_view
-      @_action_view ||= begin
-        av = super
-        av.helpers.send(:include, master_helper_module)
-        av
-      end
+      @_action_view ||= super.tap { |av| av.helpers.include(_helpers) }
     end
 
     module ClassMethods
+      # When a class is inherited, wrap its helper module in a new module.
+      # This ensures that the parent class's module can be changed
+      # independently of the child class's.
       def inherited(klass)
-        klass.master_helper_module = Module.new
-        klass.master_helper_module.__send__ :include, master_helper_module
+        helpers = _helpers
+        klass._helpers = Module.new { include helpers }
 
         super
       end
 
-      # Makes all the (instance) methods in the helper module available to templates rendered through this controller.
-      # See ActionView::Helpers (link:classes/ActionView/Helpers.html) for more about making your own helper modules
-      # available to the templates.
-      def add_template_helper(mod)
-        master_helper_module.module_eval { include mod }
-      end
-
       # Declare a controller method as a helper. For example, the following
       # makes the +current_user+ controller method available to the view:
       #   class ApplicationController < ActionController::Base
@@ -48,9 +41,13 @@ module AbstractController
       #
       # In a view:
       #  <% if logged_in? -%>Welcome, <%= current_user.name %><% end -%>
+      #
+      # ==== Parameters
+      # meths<Array[#to_s]>:: The name of a method on the controller
+      #   to be made available on the view.
       def helper_method(*meths)
         meths.flatten.each do |meth|
-          master_helper_module.class_eval <<-ruby_eval, __FILE__, __LINE__ + 1
+          _helpers.class_eval <<-ruby_eval, __FILE__, __LINE__ + 1
             def #{meth}(*args, &blk)
               controller.send(%(#{meth}), *args, &blk)
             end
@@ -58,6 +55,14 @@ module AbstractController
         end
       end
 
+      # Make a number of helper modules part of this class' default
+      # helpers.
+      #
+      # ==== Parameters
+      # *args<Array[Module]>:: Modules to be included
+      # block<Block>:: Evalulate the block in the context
+      #   of the helper module. Any methods defined in the block
+      #   will be helpers.
       def helper(*args, &block)
         args.flatten.each do |arg|
           case arg
@@ -65,7 +70,18 @@ module AbstractController
             add_template_helper(arg)
           end
         end
-        master_helper_module.module_eval(&block) if block_given?
+        _helpers.module_eval(&block) if block_given?
+      end
+
+      private
+      # Makes all the (instance) methods in the helper module available to templates
+      # rendered through this controller.
+      #
+      # ==== Parameters
+      # mod<Module>:: The module to include into the current helper module
+      #   for the class
+      def add_template_helper(mod)
+        _helpers.module_eval { include mod }
       end
     end
   end
diff --git a/actionpack/lib/action_controller/abstract/layouts.rb b/actionpack/lib/action_controller/abstract/layouts.rb
index 273063f74b..2ac4e6068a 100644
--- a/actionpack/lib/action_controller/abstract/layouts.rb
+++ b/actionpack/lib/action_controller/abstract/layouts.rb
@@ -5,16 +5,31 @@ module AbstractController
     include Renderer
 
     included do
-      extlib_inheritable_accessor :_layout_conditions
-      self._layout_conditions = {}
+      extlib_inheritable_accessor(:_layout_conditions) { Hash.new }
     end
 
     module ClassMethods
-      def layout(layout, conditions = {})
-        unless [String, Symbol, FalseClass, NilClass].include?(layout.class)
-          raise ArgumentError, "Layouts must be specified as a String, Symbol, false, or nil"
-        end
+      def inherited(klass)
+        super
+        klass._write_layout_method
+      end
 
+      # Specify the layout to use for this class.
+      #
+      # If the specified layout is a:
+      # String:: the String is the template name
+      # Symbol:: call the method specified by the symbol, which will return
+      #   the template name
+      # false::  There is no layout
+      # true::   raise an ArgumentError
+      #
+      # ==== Parameters
+      # layout<String, Symbol, false)>:: The layout to use.
+      #
+      # ==== Options (conditions)
+      # :only<#to_s, Array[#to_s]>:: A list of actions to apply this layout to.
+      # :except<#to_s, Array[#to_s]>:: Apply this layout to all actions but this one
+      def layout(layout, conditions = {})
         conditions.each {|k, v| conditions[k] = Array(v).map {|a| a.to_s} }
         self._layout_conditions = conditions
 
@@ -22,6 +37,11 @@ module AbstractController
         _write_layout_method
       end
 
+      # If no layout is supplied, look for a template named the return
+      # value of this method.
+      #
+      # ==== Returns
+      # String:: A template name
       def _implied_layout_name
         name.underscore
       end
@@ -29,23 +49,31 @@ module AbstractController
       # Takes the specified layout and creates a _layout method to be called
       # by _default_layout
       #
-      # If the specified layout is a:
-      # String:: return the string
-      # Symbol:: call the method specified by the symbol
-      # false::  return nil
-      # none::   If a layout is found in the view paths with the controller's
-      #          name, return that string. Otherwise, use the superclass'
-      #          layout (which might also be implied)
+      # If there is no explicit layout specified:
+      # If a layout is found in the view paths with the controller's
+      # name, return that string. Otherwise, use the superclass'
+      # layout (which might also be implied)
       def _write_layout_method
         case @_layout
         when String
           self.class_eval %{def _layout(details) #{@_layout.inspect} end}
         when Symbol
-          self.class_eval %{def _layout(details) #{@_layout} end}
+          self.class_eval <<-ruby_eval, __FILE__, __LINE__ + 1
+            def _layout(details)
+              #{@_layout}.tap do |layout|
+                unless layout.is_a?(String) || !layout
+                  raise ArgumentError, "Your layout method :#{@_layout} returned \#{layout}. It " \
+                    "should have returned a String, false, or nil"
+                end
+              end
+            end
+          ruby_eval
         when false
           self.class_eval %{def _layout(details) end}
-        else
-          self.class_eval %{
+        when true
+          raise ArgumentError, "Layouts must be specified as a String, Symbol, false, or nil"
+        when nil
+          self.class_eval <<-ruby_eval, __FILE__, __LINE__ + 1
             def _layout(details)
               if view_paths.find_by_parts?("#{_implied_layout_name}", details, "layouts")
                 "#{_implied_layout_name}"
@@ -53,33 +81,55 @@ module AbstractController
                 super
               end
             end
-          }
+          ruby_eval
         end
+        self.class_eval { private :_layout }
       end
     end
 
   private
-    # This will be overwritten
-    def _layout(details)
-    end
+    # This will be overwritten by _write_layout_method
+    def _layout(details) end
 
-    # :api: plugin
-    # ====
-    # Override this to mutate the inbound layout name
+    # Determine the layout for a given name and details.
+    #
+    # ==== Parameters
+    # name<String>:: The name of the template
+    # details<Hash{Symbol => Object}>:: A list of details to restrict
+    #   the lookup to. By default, layout lookup is limited to the
+    #   formats specified for the current request.
     def _layout_for_name(name, details = {:formats => formats})
-      unless [String, FalseClass, NilClass].include?(name.class)
-        raise ArgumentError, "String, false, or nil expected; you passed #{name.inspect}"
-      end
-
-      name && view_paths.find_by_parts(name, details, _layout_prefix(name))
+      name && _find_by_parts(name, details)
     end
 
-    # TODO: Decide if this is the best hook point for the feature
-    def _layout_prefix(name)
-      "layouts"
+    # Take in the name and details and find a Template.
+    #
+    # ==== Parameters
+    # name<String>:: The name of the template to retrieve
+    # details<Hash>:: A list of details to restrict the search by. This
+    #   might include details like the format or locale of the template.
+    #
+    # ==== Returns
+    # Template:: A template object matching the name and details
+    def _find_by_parts(name, details)
+      # TODO: Make prefix actually part of details in ViewPath#find_by_parts
+      prefix = details.key?(:prefix) ? details.delete(:prefix) : "layouts"
+      view_paths.find_by_parts(name, details, prefix)
     end
 
-    def _default_layout(require_layout = false, details = {:formats => formats})
+    # Returns the default layout for this controller and a given set of details. 
+    # Optionally raises an exception if the layout could not be found.
+    #
+    # ==== Parameters
+    # details<Hash>:: A list of details to restrict the search by. This
+    #   might include details like the format or locale of the template.
+    # require_layout<Boolean>:: If this is true, raise an ArgumentError
+    #   with details about the fact that the exception could not be
+    #   found (defaults to false)
+    #
+    # ==== Returns
+    # Template:: The template object for the default layout (or nil)
+    def _default_layout(details, require_layout = false)
       if require_layout && _action_has_layout? && !_layout(details)
         raise ArgumentError,
           "There was no default layout for #{self.class} in #{view_paths.inspect}"
@@ -93,6 +143,12 @@ module AbstractController
       end
     end
 
+    # Determines whether the current action has a layout by checking the
+    # action name against the :only and :except conditions set on the
+    # layout.
+    #
+    # ==== Returns
+    # Boolean:: True if the action has a layout, false otherwise.
     def _action_has_layout?
       conditions = _layout_conditions
       if only = conditions[:only]
diff --git a/actionpack/lib/action_controller/abstract/logger.rb b/actionpack/lib/action_controller/abstract/logger.rb
index d6fa843485..b960e152e3 100644
--- a/actionpack/lib/action_controller/abstract/logger.rb
+++ b/actionpack/lib/action_controller/abstract/logger.rb
@@ -5,6 +5,13 @@ module AbstractController
   module Logger
     extend ActiveSupport::Concern
 
+    # A class that allows you to defer expensive processing
+    # until the logger actually tries to log. Otherwise, you are
+    # forced to do the processing in advance, and send the
+    # entire processed String to the logger, which might
+    # just discard the String if the log level is too low.
+    #
+    # TODO: Require that Rails loggers accept a block.
     class DelayedLog
       def initialize(&blk)
         @blk = blk
@@ -20,8 +27,10 @@ module AbstractController
       cattr_accessor :logger
     end
 
-    def process(action)
-      ret = super
+    # Override process_action in the AbstractController::Base
+    # to log details about the method.
+    def process_action(action)
+      super
 
       if logger
         log = DelayedLog.new do
@@ -32,10 +41,9 @@ module AbstractController
 
         logger.info(log)
       end
-
-      ret
     end
 
+  private
     def request_origin
       # this *needs* to be cached!
       # otherwise you'd get different results if calling it more than once
diff --git a/actionpack/lib/action_controller/abstract/renderer.rb b/actionpack/lib/action_controller/abstract/renderer.rb
index dd58c7cb64..611d3a16ce 100644
--- a/actionpack/lib/action_controller/abstract/renderer.rb
+++ b/actionpack/lib/action_controller/abstract/renderer.rb
@@ -14,10 +14,32 @@ module AbstractController
       self._view_paths ||= ActionView::PathSet.new
     end
 
+    # An instance of a view class. The default view class is ActionView::Base
+    #
+    # The view class must have the following methods:
+    # initialize[paths, assigns_for_first_render, controller]
+    #   paths<Array[ViewPath]>:: A list of resolvers to look for templates in
+    #   controller<AbstractController::Base> A controller
+    # _render_partial_from_controller[options]
+    #   options<Hash>:: see _render_partial in ActionView::Base
+    # _render_template_from_controller[template, layout, options, partial]
+    #   template<ActionView::Template>:: The template to render
+    #   layout<ActionView::Template>:: The layout to render around the template
+    #   options<Hash>:: See _render_template_with_layout in ActionView::Base
+    #   partial<Boolean>:: Whether or not the template to render is a partial
+    # _partial:: If a partial, rather than a template, was rendered, return
+    #   the partial.
+    # helpers:: A module containing the helpers to be used in the view. This
+    #   module should respond_to include.
+    # controller:: The controller that initialized the ActionView
+    #
+    # Override this method in a to change the default behavior.
     def _action_view
       @_action_view ||= ActionView::Base.new(self.class.view_paths, {}, self)
     end
 
+    # Mostly abstracts the fact that calling render twice is a DoubleRenderError.
+    # Delegates render_to_body and sticks the result in self.response_body.
     def render(*args)
       if response_body
         raise AbstractController::DoubleRenderError, "OMG"
@@ -27,9 +49,10 @@ module AbstractController
     end
 
     # Raw rendering of a template to a Rack-compatible body.
-    # ====
-    # @option _prefix<String> The template's path prefix
-    # @option _layout<String> The relative path to the layout template to use
+    #
+    # ==== Options
+    # _partial_object<Object>:: The object that is being rendered. If this
+    #   exists, we are in the special case of rendering an object as a partial.
     #
     # :api: plugin
     def render_to_body(options = {})
@@ -42,21 +65,27 @@ module AbstractController
       end
     end
 
-    # Raw rendering of a template to a string.
-    # ====
-    # @option _prefix<String> The template's path prefix
-    # @option _layout<String> The relative path to the layout template to use
+    # Raw rendering of a template to a string. Just convert the results of
+    # render_to_body into a String.
     #
     # :api: plugin
     def render_to_string(options = {})
       AbstractController::Renderer.body_to_s(render_to_body(options))
     end
 
+    # Renders the template from an object.
+    #
+    # ==== Options
+    # _template<ActionView::Template>:: The template to render
+    # _layout<ActionView::Template>:: The layout to wrap the template in (optional)
+    # _partial<TrueClass, FalseClass>:: Whether or not the template to be rendered is a partial
     def _render_template(options)
       _action_view._render_template_from_controller(options[:_template], options[:_layout], options, options[:_partial])
     end
 
-    def view_paths()
+    # The list of view paths for this controller. See ActionView::ViewPathSet for
+    # more details about writing custom view paths.
+    def view_paths
       _view_paths
     end
 
@@ -73,6 +102,15 @@ module AbstractController
     end
 
   private
+    # Take in a set of options and determine the template to render
+    #
+    # ==== Options
+    # _template<ActionView::Template>:: If this is provided, the search is over
+    # _template_name<#to_s>:: The name of the template to look up. Otherwise,
+    #   use the current action name.
+    # _prefix<String>:: The prefix to look inside of. In a file system, this corresponds
+    #   to a directory.
+    # _partial<TrueClass, FalseClass>:: Whether or not the file to look up is a partial
     def _determine_template(options)
       name = (options[:_template_name] || action_name).to_s
 
@@ -82,18 +120,36 @@ module AbstractController
     end
 
     module ClassMethods
+      # Append a path to the list of view paths for this controller.
+      #
+      # ==== Parameters
+      # path<String, ViewPath>:: If a String is provided, it gets converted into 
+      # the default view path. You may also provide a custom view path 
+      # (see ActionView::ViewPathSet for more information)
       def append_view_path(path)
         self.view_paths << path
       end
 
+      # Prepend a path to the list of view paths for this controller.
+      #
+      # ==== Parameters
+      # path<String, ViewPath>:: If a String is provided, it gets converted into 
+      # the default view path. You may also provide a custom view path 
+      # (see ActionView::ViewPathSet for more information)
       def prepend_view_path(path)
         self.view_paths.unshift(path)
       end
 
+      # A list of all of the default view paths for this controller.
       def view_paths
         self._view_paths
       end
 
+      # Set the view paths.
+      #
+      # ==== Parameters
+      # paths<ViewPathSet, Object>:: If a ViewPathSet is provided, use that;
+      #   otherwise, process the parameter into a ViewPathSet.
       def view_paths=(paths)
         self._view_paths = paths.is_a?(ActionView::PathSet) ?
                             paths : ActionView::Base.process_view_paths(paths)
diff --git a/actionpack/lib/action_controller/base/base.rb b/actionpack/lib/action_controller/base/base.rb
index 1b400d8ed3..e541d24e31 100644
--- a/actionpack/lib/action_controller/base/base.rb
+++ b/actionpack/lib/action_controller/base/base.rb
@@ -1,884 +1,167 @@
-require 'action_controller/deprecated'
-require 'set'
-require 'active_support/core_ext/class/inheritable_attributes'
-require 'active_support/core_ext/module/attr_internal'
-
-module ActionController #:nodoc:
-  class ActionControllerError < StandardError #:nodoc:
-  end
-
-  class SessionRestoreError < ActionControllerError #:nodoc:
-  end
-
-  class RenderError < ActionControllerError #:nodoc:
-  end
-
-  class RoutingError < ActionControllerError #:nodoc:
-    attr_reader :failures
-    def initialize(message, failures=[])
-      super(message)
-      @failures = failures
-    end
-  end
-
-  class MethodNotAllowed < ActionControllerError #:nodoc:
-    attr_reader :allowed_methods
-
-    def initialize(*allowed_methods)
-      super("Only #{allowed_methods.to_sentence(:locale => :en)} requests are allowed.")
-      @allowed_methods = allowed_methods
-    end
-
-    def allowed_methods_header
-      allowed_methods.map { |method_symbol| method_symbol.to_s.upcase } * ', '
-    end
-  end
-
-  class NotImplemented < MethodNotAllowed #:nodoc:
-  end
-
-  class UnknownController < ActionControllerError #:nodoc:
-  end
-
-  class UnknownAction < ActionControllerError #:nodoc:
-  end
-
-  class MissingFile < ActionControllerError #:nodoc:
-  end
-
-  class RenderError < ActionControllerError #:nodoc:
-  end
-
-  class SessionOverflowError < ActionControllerError #:nodoc:
-    DEFAULT_MESSAGE = 'Your session data is larger than the data column in which it is to be stored. You must increase the size of your data column if you intend to store large data.'
-
-    def initialize(message = nil)
-      super(message || DEFAULT_MESSAGE)
-    end
-  end
-
-  class UnknownHttpMethod < ActionControllerError #:nodoc:
-  end
-
-  # Action Controllers are the core of a web request in Rails. They are made up of one or more actions that are executed
-  # on request and then either render a template or redirect to another action. An action is defined as a public method
-  # on the controller, which will automatically be made accessible to the web-server through Rails Routes.
-  #
-  # A sample controller could look like this:
-  #
-  #   class GuestBookController < ActionController::Base
-  #     def index
-  #       @entries = Entry.find(:all)
-  #     end
-  #
-  #     def sign
-  #       Entry.create(params[:entry])
-  #       redirect_to :action => "index"
-  #     end
-  #   end
-  #
-  # Actions, by default, render a template in the <tt>app/views</tt> directory corresponding to the name of the controller and action
-  # after executing code in the action. For example, the +index+ action of the GuestBookController would render the
-  # template <tt>app/views/guestbook/index.erb</tt> by default after populating the <tt>@entries</tt> instance variable.
-  #
-  # Unlike index, the sign action will not render a template. After performing its main purpose (creating a
-  # new entry in the guest book), it initiates a redirect instead. This redirect works by returning an external
-  # "302 Moved" HTTP response that takes the user to the index action.
-  #
-  # The index and sign represent the two basic action archetypes used in Action Controllers. Get-and-show and do-and-redirect.
-  # Most actions are variations of these themes.
-  #
-  # == Requests
-  #
-  # Requests are processed by the Action Controller framework by extracting the value of the "action" key in the request parameters.
-  # This value should hold the name of the action to be performed. Once the action has been identified, the remaining
-  # request parameters, the session (if one is available), and the full request with all the HTTP headers are made available to
-  # the action through instance variables. Then the action is performed.
-  #
-  # The full request object is available with the request accessor and is primarily used to query for HTTP headers. These queries
-  # are made by accessing the environment hash, like this:
-  #
-  #   def server_ip
-  #     location = request.env["SERVER_ADDR"]
-  #     render :text => "This server hosted at #{location}"
-  #   end
-  #
-  # == Parameters
-  #
-  # All request parameters, whether they come from a GET or POST request, or from the URL, are available through the params method
-  # which returns a hash. For example, an action that was performed through <tt>/weblog/list?category=All&limit=5</tt> will include
-  # <tt>{ "category" => "All", "limit" => 5 }</tt> in params.
-  #
-  # It's also possible to construct multi-dimensional parameter hashes by specifying keys using brackets, such as:
-  #
-  #   <input type="text" name="post[name]" value="david">
-  #   <input type="text" name="post[address]" value="hyacintvej">
-  #
-  # A request stemming from a form holding these inputs will include <tt>{ "post" => { "name" => "david", "address" => "hyacintvej" } }</tt>.
-  # If the address input had been named "post[address][street]", the params would have included
-  # <tt>{ "post" => { "address" => { "street" => "hyacintvej" } } }</tt>. There's no limit to the depth of the nesting.
-  #
-  # == Sessions
-  #
-  # Sessions allows you to store objects in between requests. This is useful for objects that are not yet ready to be persisted,
-  # such as a Signup object constructed in a multi-paged process, or objects that don't change much and are needed all the time, such
-  # as a User object for a system that requires login. The session should not be used, however, as a cache for objects where it's likely
-  # they could be changed unknowingly. It's usually too much work to keep it all synchronized -- something databases already excel at.
-  #
-  # You can place objects in the session by using the <tt>session</tt> method, which accesses a hash:
-  #
-  #   session[:person] = Person.authenticate(user_name, password)
-  #
-  # And retrieved again through the same hash:
-  #
-  #   Hello #{session[:person]}
-  #
-  # For removing objects from the session, you can either assign a single key to +nil+:
-  #
-  #   # removes :person from session
-  #   session[:person] = nil
-  #
-  # or you can remove the entire session with +reset_session+.
-  #
-  # Sessions are stored by default in a browser cookie that's cryptographically signed, but unencrypted.
-  # This prevents the user from tampering with the session but also allows him to see its contents.
-  #
-  # Do not put secret information in cookie-based sessions!
-  #
-  # Other options for session storage are:
-  #
-  # * ActiveRecord::SessionStore - Sessions are stored in your database, which works better than PStore with multiple app servers and,
-  #   unlike CookieStore, hides your session contents from the user. To use ActiveRecord::SessionStore, set
-  #
-  #     config.action_controller.session_store = :active_record_store
-  #
-  #   in your <tt>config/environment.rb</tt> and run <tt>rake db:sessions:create</tt>.
-  #
-  # * MemCacheStore - Sessions are stored as entries in your memcached cache.
-  #   Set the session store type in <tt>config/environment.rb</tt>:
-  #
-  #     config.action_controller.session_store = :mem_cache_store
-  #
-  #   This assumes that memcached has been installed and configured properly.
-  #   See the MemCacheStore docs for more information.
-  #
-  # == Responses
-  #
-  # Each action results in a response, which holds the headers and document to be sent to the user's browser. The actual response
-  # object is generated automatically through the use of renders and redirects and requires no user intervention.
-  #
-  # == Renders
-  #
-  # Action Controller sends content to the user by using one of five rendering methods. The most versatile and common is the rendering
-  # of a template. Included in the Action Pack is the Action View, which enables rendering of ERb templates. It's automatically configured.
-  # The controller passes objects to the view by assigning instance variables:
-  #
-  #   def show
-  #     @post = Post.find(params[:id])
-  #   end
-  #
-  # Which are then automatically available to the view:
-  #
-  #   Title: <%= @post.title %>
-  #
-  # You don't have to rely on the automated rendering. Especially actions that could result in the rendering of different templates will use
-  # the manual rendering methods:
-  #
-  #   def search
-  #     @results = Search.find(params[:query])
-  #     case @results
-  #       when 0 then render :action => "no_results"
-  #       when 1 then render :action => "show"
-  #       when 2..10 then render :action => "show_many"
-  #     end
-  #   end
-  #
-  # Read more about writing ERb and Builder templates in link:classes/ActionView/Base.html.
-  #
-  # == Redirects
-  #
-  # Redirects are used to move from one action to another. For example, after a <tt>create</tt> action, which stores a blog entry to a database,
-  # we might like to show the user the new entry. Because we're following good DRY principles (Don't Repeat Yourself), we're going to reuse (and redirect to)
-  # a <tt>show</tt> action that we'll assume has already been created. The code might look like this:
-  #
-  #   def create
-  #     @entry = Entry.new(params[:entry])
-  #     if @entry.save
-  #       # The entry was saved correctly, redirect to show
-  #       redirect_to :action => 'show', :id => @entry.id
-  #     else
-  #       # things didn't go so well, do something else
-  #     end
-  #   end
-  #
-  # In this case, after saving our new entry to the database, the user is redirected to the <tt>show</tt> method which is then executed.
-  #
-  # == Calling multiple redirects or renders
-  #
-  # An action may contain only a single render or a single redirect. Attempting to try to do either again will result in a DoubleRenderError:
-  #
-  #   def do_something
-  #     redirect_to :action => "elsewhere"
-  #     render :action => "overthere" # raises DoubleRenderError
-  #   end
-  #
-  # If you need to redirect on the condition of something, then be sure to add "and return" to halt execution.
-  #
-  #   def do_something
-  #     redirect_to(:action => "elsewhere") and return if monkeys.nil?
-  #     render :action => "overthere" # won't be called if monkeys is nil
-  #   end
-  #
-  class Base
-
+module ActionController
+  class Base < Http
+    abstract!
+
+    include AbstractController::Benchmarker
+    include AbstractController::Callbacks
+    include AbstractController::Logger
+
+    include ActionController::Helpers
+    include ActionController::HideActions
+    include ActionController::UrlFor
+    include ActionController::Redirector
+    include ActionController::Renderer
+    include ActionController::Renderers::All
+    include ActionController::Layouts
+    include ActionController::ConditionalGet
+    include ActionController::RackConvenience
+
+    # Legacy modules
+    include SessionManagement
     include ActionDispatch::StatusCodes
-
-    cattr_reader :protected_instance_variables
-    # Controller specific instance variables which will not be accessible inside views.
-    @@protected_instance_variables = %w(@assigns @performed_redirect @performed_render @variables_added @request_origin @url @parent_controller
-                                        @action_name @before_filter_chain_aborted @action_cache_path @_headers @_params
-                                        @_flash @_response)
-
-    # Prepends all the URL-generating helpers from AssetHelper. This makes it possible to easily move javascripts, stylesheets,
-    # and images to a dedicated asset server away from the main web server. Example:
-    #   ActionController::Base.asset_host = "http://assets.example.com"
-    cattr_accessor :asset_host
-
-    # All requests are considered local by default, so everyone will be exposed to detailed debugging screens on errors.
-    # When the application is ready to go public, this should be set to false, and the protected method <tt>local_request?</tt>
-    # should instead be implemented in the controller to determine when debugging screens should be shown.
-    @@consider_all_requests_local = true
-    cattr_accessor :consider_all_requests_local
-
-    # Indicates whether to allow concurrent action processing. Your
-    # controller actions and any other code they call must also behave well
-    # when called from concurrent threads. Turned off by default.
-    @@allow_concurrency = false
-    cattr_accessor :allow_concurrency
-
-    # Modern REST web services often need to submit complex data to the web application.
-    # The <tt>@@param_parsers</tt> hash lets you register handlers which will process the HTTP body and add parameters to the
-    # <tt>params</tt> hash. These handlers are invoked for POST and PUT requests.
-    #
-    # By default <tt>application/xml</tt> is enabled. A XmlSimple class with the same param name as the root will be instantiated
-    # in the <tt>params</tt>. This allows XML requests to mask themselves as regular form submissions, so you can have one
-    # action serve both regular forms and web service requests.
-    #
-    # Example of doing your own parser for a custom content type:
-    #
-    #   ActionController::Base.param_parsers[Mime::Type.lookup('application/atom+xml')] = Proc.new do |data|
-    #      node = REXML::Document.new(post)
-    #     { node.root.name => node.root }
-    #   end
-    #
-    # Note: Up until release 1.1 of Rails, Action Controller would default to using XmlSimple configured to discard the
-    # root node for such requests. The new default is to keep the root, such that "<r><name>David</name></r>" results
-    # in <tt>params[:r][:name]</tt> for "David" instead of <tt>params[:name]</tt>. To get the old behavior, you can
-    # re-register XmlSimple as application/xml handler ike this:
-    #
-    #   ActionController::Base.param_parsers[Mime::XML] =
-    #     Proc.new { |data| XmlSimple.xml_in(data, 'ForceArray' => false) }
-    #
-    # A YAML parser is also available and can be turned on with:
-    #
-    #   ActionController::Base.param_parsers[Mime::YAML] = :yaml
-    @@param_parsers = { Mime::MULTIPART_FORM   => :multipart_form,
-                        Mime::URL_ENCODED_FORM => :url_encoded_form,
-                        Mime::XML              => :xml_simple,
-                        Mime::JSON             => :json }
-    cattr_accessor :param_parsers
-
-    # Controls the default charset for all renders.
-    @@default_charset = "utf-8"
-    cattr_accessor :default_charset
-
-    # The logger is used for generating information on the action run-time (including benchmarking) if available.
-    # Can be set to nil for no logging. Compatible with both Ruby's own Logger and Log4r loggers.
-    cattr_accessor :logger
-
-    # Controls the resource action separator
-    @@resource_action_separator = "/"
-    cattr_accessor :resource_action_separator
-
-    # Allow to override path names for default resources' actions
-    @@resources_path_names = { :new => 'new', :edit => 'edit' }
-    cattr_accessor :resources_path_names
-
-    # Sets the token parameter name for RequestForgery. Calling +protect_from_forgery+
-    # sets it to <tt>:authenticity_token</tt> by default.
-    cattr_accessor :request_forgery_protection_token
-
-    # Controls the IP Spoofing check when determining the remote IP.
-    @@ip_spoofing_check = true
-    cattr_accessor :ip_spoofing_check
-
-    # Indicates whether or not optimise the generated named
-    # route helper methods
-    cattr_accessor :optimise_named_routes
-    self.optimise_named_routes = true
-
-    # Indicates whether the response format should be determined by examining the Accept HTTP header,
-    # or by using the simpler params + ajax rules.
-    #
-    # If this is set to +true+ (the default) then +respond_to+ and +Request#format+ will take the Accept
-    # header into account.  If it is set to false then the request format will be determined solely
-    # by examining params[:format].  If params format is missing, the format will be either HTML or
-    # Javascript depending on whether the request is an AJAX request.
-    cattr_accessor :use_accept_header
-    self.use_accept_header = true
-
-    # Controls whether request forgery protection is turned on or not. Turned off by default only in test mode.
-    class_inheritable_accessor :allow_forgery_protection
-    self.allow_forgery_protection = true
-
-    # If you are deploying to a subdirectory, you will need to set
-    # <tt>config.action_controller.relative_url_root</tt>
-    # This defaults to ENV['RAILS_RELATIVE_URL_ROOT']
-    cattr_accessor :relative_url_root
-    self.relative_url_root = ENV['RAILS_RELATIVE_URL_ROOT']
-
-    # Holds the request object that's primarily used to get environment variables through access like
-    # <tt>request.env["REQUEST_URI"]</tt>.
-    attr_internal :request
-
-    # Holds a hash of all the GET, POST, and Url parameters passed to the action. Accessed like <tt>params["post_id"]</tt>
-    # to get the post_id. No type casts are made, so all values are returned as strings.
-    attr_internal :params
-
-    # Holds the response object that's primarily used to set additional HTTP headers through access like
-    # <tt>response.headers["Cache-Control"] = "no-cache"</tt>. Can also be used to access the final body HTML after a template
-    # has been rendered through response.body -- useful for <tt>after_filter</tt>s that wants to manipulate the output,
-    # such as a OutputCompressionFilter.
-    attr_internal :response
-
-    # Holds a hash of objects in the session. Accessed like <tt>session[:person]</tt> to get the object tied to the "person"
-    # key. The session will hold any type of object as values, but the key should be a string or symbol.
-    def session
-      request.session
-    end
-
-    # Holds a hash of header names and values. Accessed like <tt>headers["Cache-Control"]</tt> to get the value of the Cache-Control
-    # directive. Values should always be specified as strings.
-    attr_internal :headers
-
-    # Returns the name of the action this controller is processing.
-    attr_accessor :action_name
-
-    attr_reader :template
-
-    def action(name, env)
-      request  = ActionDispatch::Request.new(env)
-      response = ActionDispatch::Response.new
-      self.action_name = name && name.to_s
-      process(request, response).to_a
-    end
-
-
-    class << self
-      def action(name = nil)
-        @actions ||= {}
-        @actions[name] ||= proc do |env|
-          new.action(name, env)
-        end
-      end
-      
-      # Converts the class name from something like "OneModule::TwoModule::NeatController" to "NeatController".
-      def controller_class_name
-        @controller_class_name ||= name.demodulize
-      end
-
-      # Converts the class name from something like "OneModule::TwoModule::NeatController" to "neat".
-      def controller_name
-        @controller_name ||= controller_class_name.sub(/Controller$/, '').underscore
-      end
-
-      # Converts the class name from something like "OneModule::TwoModule::NeatController" to "one_module/two_module/neat".
-      def controller_path
-        @controller_path ||= name.gsub(/Controller$/, '').underscore
-      end
-
-      # Return an array containing the names of public methods that have been marked hidden from the action processor.
-      # By default, all methods defined in ActionController::Base and included modules are hidden.
-      # More methods can be hidden using <tt>hide_action</tt>.
-      def hidden_actions
-        read_inheritable_attribute(:hidden_actions) || write_inheritable_attribute(:hidden_actions, [])
-      end
-
-      # Hide each of the given methods from being callable as actions.
-      def hide_action(*names)
-        write_inheritable_attribute(:hidden_actions, hidden_actions | names.map { |name| name.to_s })
-      end
-
-      # View load paths determine the bases from which template references can be made. So a call to
-      # render("test/template") will be looked up in the view load paths array and the closest match will be
-      # returned.
-      def view_paths
-        if defined? @view_paths
-          @view_paths
-        else
-          superclass.view_paths
-        end
-      end
-
-      def view_paths=(value)
-        @view_paths = ActionView::Base.process_view_paths(value) if value
-      end
-
-      # Adds a view_path to the front of the view_paths array.
-      # If the current class has no view paths, copy them from
-      # the superclass.  This change will be visible for all future requests.
-      #
-      #   ArticleController.prepend_view_path("views/default")
-      #   ArticleController.prepend_view_path(["views/default", "views/custom"])
-      #
-      def prepend_view_path(path)
-        @view_paths = superclass.view_paths.dup if !defined?(@view_paths) || @view_paths.nil?
-        @view_paths.unshift(*path)
+    include ActionController::Caching
+    include ActionController::MimeResponds
+
+    # Rails 2.x compatibility
+    include ActionController::Rails2Compatibility
+
+    include ActionController::Cookies
+    include ActionController::Session
+    include ActionController::Flash
+    include ActionController::Verification
+    include ActionController::RequestForgeryProtection
+    include ActionController::Streaming
+    include ActionController::HttpAuthentication::Basic::ControllerMethods
+    include ActionController::HttpAuthentication::Digest::ControllerMethods
+    include ActionController::FilterParameterLogging
+    include ActionController::Translation
+
+    # TODO: Extract into its own module
+    # This should be moved together with other normalizing behavior
+    module ImplicitRender
+      def send_action(*)
+        ret = super
+        default_render unless performed?
+        ret
+      end
+
+      def default_render
+        render
       end
 
-      # Adds a view_path to the end of the view_paths array.
-      # If the current class has no view paths, copy them from
-      # the superclass. This change will be visible for all future requests.
-      #
-      #   ArticleController.append_view_path("views/default")
-      #   ArticleController.append_view_path(["views/default", "views/custom"])
-      #
-      def append_view_path(path)
-        @view_paths = superclass.view_paths.dup if @view_paths.nil?
-        @view_paths.push(*path)
-      end
-      
-      @@exempt_from_layout = [ActionView::TemplateHandlers::RJS]
-      
-      def exempt_from_layout(*types)
-        types.each do |type|
-          @@exempt_from_layout << 
-            ActionView::Template.handler_class_for_extension(type)
+      def method_for_action(action_name)
+        super || begin
+          if view_paths.find_by_parts?(action_name.to_s, {:formats => formats, :locales => [I18n.locale]}, controller_path)
+            "default_render"
+          end
         end
-        
-        @@exempt_from_layout
       end
-
     end
 
-    public
-      def call(env)
-        request = ActionDispatch::Request.new(env)
-        response = ActionDispatch::Response.new
-        process(request, response).to_a
-      end
-
-      # Extracts the action_name from the request parameters and performs that action.
-      def process(request, response, method = :perform_action, *arguments) #:nodoc:
-        response.request = request
+    include ImplicitRender
 
-        assign_shortcuts(request, response)
-        initialize_template_class(response)
-        initialize_current_url
+    include ActionController::Rescue
 
-        log_processing
-        send(method, *arguments)
-
-        send_response
-      ensure
-        process_cleanup
-      end
-
-      def send_response
-        response.prepare!
-        response
-      end
-
-      # Returns a URL that has been rewritten according to the options hash and the defined routes.
-      # (For doing a complete redirect, use +redirect_to+).
-      #
-      # <tt>url_for</tt> is used to:
-      #
-      # All keys given to +url_for+ are forwarded to the Route module, save for the following:
-      # * <tt>:anchor</tt> - Specifies the anchor name to be appended to the path. For example,
-      #   <tt>url_for :controller => 'posts', :action => 'show', :id => 10, :anchor => 'comments'</tt>
-      #   will produce "/posts/show/10#comments".
-      # * <tt>:only_path</tt> - If true, returns the relative URL (omitting the protocol, host name, and port) (<tt>false</tt> by default).
-      # * <tt>:trailing_slash</tt> - If true, adds a trailing slash, as in "/archive/2005/". Note that this
-      #   is currently not recommended since it breaks caching.
-      # * <tt>:host</tt> - Overrides the default (current) host if provided.
-      # * <tt>:protocol</tt> - Overrides the default (current) protocol if provided.
-      # * <tt>:port</tt> - Optionally specify the port to connect to.
-      # * <tt>:user</tt> - Inline HTTP authentication (only plucked out if <tt>:password</tt> is also present).
-      # * <tt>:password</tt> - Inline HTTP authentication (only plucked out if <tt>:user</tt> is also present).
-      # * <tt>:skip_relative_url_root</tt> - If true, the url is not constructed using the +relative_url_root+
-      #   of the request so the path will include the web server relative installation directory.
-      #
-      # The URL is generated from the remaining keys in the hash. A URL contains two key parts: the <base> and a query string.
-      # Routes composes a query string as the key/value pairs not included in the <base>.
-      #
-      # The default Routes setup supports a typical Rails path of "controller/action/id" where action and id are optional, with
-      # action defaulting to 'index' when not given. Here are some typical url_for statements and their corresponding URLs:
-      #
-      #   url_for :controller => 'posts', :action => 'recent'                # => 'proto://host.com/posts/recent'
-      #   url_for :controller => 'posts', :action => 'index'                 # => 'proto://host.com/posts'
-      #   url_for :controller => 'posts', :action => 'index', :port=>'8033'  # => 'proto://host.com:8033/posts'
-      #   url_for :controller => 'posts', :action => 'show', :id => 10       # => 'proto://host.com/posts/show/10'
-      #   url_for :controller => 'posts', :user => 'd', :password => '123'   # => 'proto://d:123@host.com/posts'
-      #
-      # When generating a new URL, missing values may be filled in from the current request's parameters. For example,
-      # <tt>url_for :action => 'some_action'</tt> will retain the current controller, as expected. This behavior extends to
-      # other parameters, including <tt>:controller</tt>, <tt>:id</tt>, and any other parameters that are placed into a Route's
-      # path.
-      #  
-      # The URL helpers such as <tt>url_for</tt> have a limited form of memory: when generating a new URL, they can look for
-      # missing values in the current request's parameters. Routes attempts to guess when a value should and should not be
-      # taken from the defaults. There are a few simple rules on how this is performed:
-      #
-      # * If the controller name begins with a slash no defaults are used:
-      #
-      #     url_for :controller => '/home'
-      #
-      #   In particular, a leading slash ensures no namespace is assumed. Thus,
-      #   while <tt>url_for :controller => 'users'</tt> may resolve to
-      #   <tt>Admin::UsersController</tt> if the current controller lives under
-      #   that module, <tt>url_for :controller => '/users'</tt> ensures you link
-      #   to <tt>::UsersController</tt> no matter what.
-      # * If the controller changes, the action will default to index unless provided
-      #
-      # The final rule is applied while the URL is being generated and is best illustrated by an example. Let us consider the
-      # route given by <tt>map.connect 'people/:last/:first/:action', :action => 'bio', :controller => 'people'</tt>.
-      #
-      # Suppose that the current URL is "people/hh/david/contacts". Let's consider a few different cases of URLs which are generated
-      # from this page.
-      #
-      # * <tt>url_for :action => 'bio'</tt> -- During the generation of this URL, default values will be used for the first and
-      # last components, and the action shall change. The generated URL will be, "people/hh/david/bio".
-      # * <tt>url_for :first => 'davids-little-brother'</tt> This generates the URL 'people/hh/davids-little-brother' -- note
-      #   that this URL leaves out the assumed action of 'bio'.
-      #
-      # However, you might ask why the action from the current request, 'contacts', isn't carried over into the new URL. The
-      # answer has to do with the order in which the parameters appear in the generated path. In a nutshell, since the
-      # value that appears in the slot for <tt>:first</tt> is not equal to default value for <tt>:first</tt> we stop using
-      # defaults. On its own, this rule can account for much of the typical Rails URL behavior.
-      #  
-      # Although a convenience, defaults can occasionally get in your way. In some cases a default persists longer than desired.
-      # The default may be cleared by adding <tt>:name => nil</tt> to <tt>url_for</tt>'s options.
-      # This is often required when writing form helpers, since the defaults in play may vary greatly depending upon where the
-      # helper is used from. The following line will redirect to PostController's default action, regardless of the page it is
-      # displayed on:
-      #
-      #   url_for :controller => 'posts', :action => nil
-      #
-      # If you explicitly want to create a URL that's almost the same as the current URL, you can do so using the
-      # <tt>:overwrite_params</tt> options. Say for your posts you have different views for showing and printing them.
-      # Then, in the show view, you get the URL for the print view like this
-      #
-      #   url_for :overwrite_params => { :action => 'print' }
-      #
-      # This takes the current URL as is and only exchanges the action. In contrast, <tt>url_for :action => 'print'</tt>
-      # would have slashed-off the path components after the changed action.
-      def url_for(options = {})
-        options ||= {}
-        case options
-          when String
-            options
-          when Hash
-            @url.rewrite(rewrite_options(options))
-          else
-            polymorphic_url(options)
-        end
-      end
-
-      # Converts the class name from something like "OneModule::TwoModule::NeatController" to "NeatController".
-      def controller_class_name
-        self.class.controller_class_name
-      end
-
-      # Converts the class name from something like "OneModule::TwoModule::NeatController" to "neat".
-      def controller_name
-        self.class.controller_name
-      end
-
-      # Converts the class name from something like "OneModule::TwoModule::NeatController" to "one_module/two_module/neat".
-      def controller_path
-        self.class.controller_path
-      end
-
-      def session_enabled?
-        ActiveSupport::Deprecation.warn("Sessions are now lazy loaded. So if you don't access them, consider them disabled.", caller)
-      end
-
-      self.view_paths = []
-
-      # View load paths for controller.
-      def view_paths
-        @template.view_paths
-      end
-
-      def view_paths=(value)
-        @template.view_paths = ActionView::Base.process_view_paths(value)
-      end
-
-      # Adds a view_path to the front of the view_paths array.
-      # This change affects the current request only.
-      #
-      #   self.prepend_view_path("views/default")
-      #   self.prepend_view_path(["views/default", "views/custom"])
-      #
-      def prepend_view_path(path)
-        @template.view_paths.unshift(*path)
-      end
-
-      # Adds a view_path to the end of the view_paths array.
-      # This change affects the current request only.
-      #
-      #   self.append_view_path("views/default")
-      #   self.append_view_path(["views/default", "views/custom"])
-      #
-      def append_view_path(path)
-        @template.view_paths.push(*path)
-      end
-
-      def rewrite_options(options) #:nodoc:
-        if defaults = default_url_options(options)
-          defaults.merge(options)
-        else
-          options
-        end
-      end
-
-      # Overwrite to implement a number of default options that all url_for-based methods will use. The default options should come in
-      # the form of a hash, just like the one you would use for url_for directly. Example:
-      #
-      #   def default_url_options(options)
-      #     { :project => @project.active? ? @project.url_name : "unknown" }
-      #   end
-      #
-      # As you can infer from the example, this is mostly useful for situations where you want to centralize dynamic decisions about the
-      # urls as they stem from the business domain. Please note that any individual url_for call can always override the defaults set
-      # by this method.
-      def default_url_options(options = nil)
-      end
-
-      # Sets the etag and/or last_modified on the response and checks it against
-      # the client request. If the request doesn't match the options provided, the
-      # request is considered stale and should be generated from scratch. Otherwise,
-      # it's fresh and we don't need to generate anything and a reply of "304 Not Modified" is sent.
-      #
-      # Parameters:
-      # * <tt>:etag</tt>
-      # * <tt>:last_modified</tt> 
-      # * <tt>:public</tt> By default the Cache-Control header is private, set this to true if you want your application to be cachable by other devices (proxy caches).
-      #
-      # Example:
-      #
-      #   def show
-      #     @article = Article.find(params[:id])
-      #
-      #     if stale?(:etag => @article, :last_modified => @article.created_at.utc)
-      #       @statistics = @article.really_expensive_call
-      #       respond_to do |format|
-      #         # all the supported formats
-      #       end
-      #     end
-      #   end
-      def stale?(options)
-        fresh_when(options)
-        !request.fresh?(response)
-      end
-
-      # Sets the etag, last_modified, or both on the response and renders a
-      # "304 Not Modified" response if the request is already fresh.
-      #
-      # Parameters:
-      # * <tt>:etag</tt>
-      # * <tt>:last_modified</tt> 
-      # * <tt>:public</tt> By default the Cache-Control header is private, set this to true if you want your application to be cachable by other devices (proxy caches).
-      #
-      # Example:
-      #
-      #   def show
-      #     @article = Article.find(params[:id])
-      #     fresh_when(:etag => @article, :last_modified => @article.created_at.utc, :public => true)
-      #   end
-      #
-      # This will render the show template if the request isn't sending a matching etag or
-      # If-Modified-Since header and just a "304 Not Modified" response if there's a match.
-      #
-      def fresh_when(options)
-        options.assert_valid_keys(:etag, :last_modified, :public)
-
-        response.etag          = options[:etag]          if options[:etag]
-        response.last_modified = options[:last_modified] if options[:last_modified]
-        
-        if options[:public] 
-          cache_control = response.headers["Cache-Control"].split(",").map {|k| k.strip }
-          cache_control.delete("private")
-          cache_control.delete("no-cache")
-          cache_control << "public"
-          response.headers["Cache-Control"] = cache_control.join(', ')
-        end
-
-        if request.fresh?(response)
-          head :not_modified
-        end
-      end
-
-      # Sets a HTTP 1.1 Cache-Control header. Defaults to issuing a "private" instruction, so that
-      # intermediate caches shouldn't cache the response.
-      #
-      # Examples:
-      #   expires_in 20.minutes
-      #   expires_in 3.hours, :public => true
-      #   expires in 3.hours, 'max-stale' => 5.hours, :public => true
-      #
-      # This method will overwrite an existing Cache-Control header.
-      # See http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html for more possibilities.
-      def expires_in(seconds, options = {}) #:doc:
-        cache_control = response.headers["Cache-Control"].split(",").map {|k| k.strip }
-
-        cache_control << "max-age=#{seconds}"
-        cache_control.delete("no-cache")
-        if options[:public]
-          cache_control.delete("private")
-          cache_control << "public"
-        else
-          cache_control << "private"
-        end
-        
-        # This allows for additional headers to be passed through like 'max-stale' => 5.hours
-        cache_control += options.symbolize_keys.reject{|k,v| k == :public || k == :private }.map{ |k,v| v == true ? k.to_s : "#{k.to_s}=#{v.to_s}"}
-        
-        response.headers["Cache-Control"] = cache_control.join(', ')
-      end
-
-      # Sets a HTTP 1.1 Cache-Control header of "no-cache" so no caching should occur by the browser or
-      # intermediate caches (like caching proxy servers).
-      def expires_now #:doc:
-        response.headers["Cache-Control"] = "no-cache"
-      end
-
-      # Resets the session by clearing out all the objects stored within and initializing a new session object.
-      def reset_session #:doc:
-        request.reset_session
-      end
-
-    private
-      def _process_options(options)
-        if content_type = options[:content_type]
-          response.content_type = content_type.to_s
-        end
-
-        if location = options[:location]
-          response.headers["Location"] = url_for(location)
-        end
-
-        response.status = interpret_status(options[:status] || DEFAULT_RENDER_STATUS_CODE)
-      end
-
-      def initialize_template_class(response)
-        @template = ActionView::Base.new(self.class.view_paths, {}, self, formats)
-        response.template = @template if response.respond_to?(:template=)
-        @template.helpers.send :include, self.class.master_helper_module
-        @performed_render = @performed_redirect = false
-      end
-
-      def assign_shortcuts(request, response)
-        @_request, @_response, @_params = request, response, request.parameters
-        @_headers = @_response.headers
-      end
-
-      def initialize_current_url
-        @url = UrlRewriter.new(request, params.clone)
-      end
-
-      def log_processing
-        if logger && logger.info?
-          log_processing_for_request_id
-          log_processing_for_parameters
-        end
-      end
-
-      def log_processing_for_request_id
-        request_id = "\n\nProcessing #{self.class.name}\##{action_name} "
-        request_id << "to #{params[:format]} " if params[:format]
-        request_id << "(for #{request_origin}) [#{request.method.to_s.upcase}]"
-
-        logger.info(request_id)
-      end
+    def self.inherited(klass)
+      ::ActionController::Base.subclasses << klass.to_s
+      super
+    end
 
-      def default_render #:nodoc:
-        render
-      end
+    def self.subclasses
+      @subclasses ||= []
+    end
 
-      def perform_action
-        if called = action_methods.include?(action_name)
-          ret = send(action_name)
-        elsif called = respond_to?(:method_missing)
-          ret = method_missing(action_name)
-        end
-        
-        return (performed? ? ret : default_render) if called
-        
-        begin
-          view_paths.find_by_parts(action_name, {:formats => formats, :locales => [I18n.locale]}, controller_path)
-        rescue => e
-          raise UnknownAction, "No action responded to #{action_name}. Actions: " +
-            "#{action_methods.sort.to_sentence}", caller
+    def _normalize_options(action = nil, options = {}, &blk)
+      if action.is_a?(Hash)
+        options, action = action, nil
+      elsif action.is_a?(String) || action.is_a?(Symbol)
+        key = case action = action.to_s
+        when %r{^/} then :file
+        when %r{/}  then :template
+        else             :action
         end
-        
-        default_render
+        options.merge! key => action
+      elsif action
+        options.merge! :partial => action
       end
 
-      # Returns true if a render or redirect has already been performed.
-      def performed?
-        @performed_render || @performed_redirect
+      if options.key?(:action) && options[:action].to_s.index("/")
+        options[:template] = options.delete(:action)
       end
 
-      def reset_variables_added_to_assigns
-        @template.instance_variable_set("@assigns_added", nil)
+      if options[:status]
+        options[:status] = interpret_status(options[:status]).to_i
       end
 
-      def request_origin
-        # this *needs* to be cached!
-        # otherwise you'd get different results if calling it more than once
-        @request_origin ||= "#{request.remote_ip} at #{Time.now.to_s(:db)}"
-      end
-
-      # Returns the request URI used to get to the current location
-      def complete_request_uri
-        "#{request.protocol}#{request.host}#{request.request_uri}"
-      end
-
-      def default_template(action_name = self.action_name)
-        self.view_paths.find_template(default_template_name(action_name), default_template_format)
-      end
-
-      def default_template_name(action_name = self.action_name)
-        if action_name
-          action_name = action_name.to_s
-          if action_name.include?('/') && template_path_includes_controller?(action_name)
-            action_name = strip_out_controller(action_name)
-          end
-        end
-        "#{controller_path}/#{action_name}"
-      end
-
-      def strip_out_controller(path)
-        path.split('/', 2).last
-      end
+      options[:update] = blk if block_given?
+      options
+    end
 
-      def template_path_includes_controller?(path)
-        self.controller_path.split('/')[-1] == path.split('/')[0]
-      end
+    def render(action = nil, options = {}, &blk)
+      options = _normalize_options(action, options, &blk)
+      super(options)
+    end
 
-      def process_cleanup
-      end
-  end
+    def render_to_string(action = nil, options = {}, &blk)
+      options = _normalize_options(action, options, &blk)
+      super(options)
+    end
 
-  Base.class_eval do
-    [ Filters, Layout, Renderer, Redirector, Responder, Benchmarking, Rescue, Flash, MimeResponds, Helpers,
-      Cookies, Caching, Verification, Streaming, SessionManagement,
-      HttpAuthentication::Basic::ControllerMethods, HttpAuthentication::Digest::ControllerMethods, RecordIdentifier,
-      RequestForgeryProtection, Translation, FilterParameterLogging
-    ].each do |mod|
-      include mod
+    # Redirects the browser to the target specified in +options+. This parameter can take one of three forms:
+    #
+    # * <tt>Hash</tt> - The URL will be generated by calling url_for with the +options+.
+    # * <tt>Record</tt> - The URL will be generated by calling url_for with the +options+, which will reference a named URL for that record.
+    # * <tt>String</tt> starting with <tt>protocol://</tt> (like <tt>http://</tt>) - Is passed straight through as the target for redirection.
+    # * <tt>String</tt> not containing a protocol - The current protocol and host is prepended to the string.
+    # * <tt>:back</tt> - Back to the page that issued the request. Useful for forms that are triggered from multiple places.
+    #   Short-hand for <tt>redirect_to(request.env["HTTP_REFERER"])</tt>
+    #
+    # Examples:
+    #   redirect_to :action => "show", :id => 5
+    #   redirect_to post
+    #   redirect_to "http://www.rubyonrails.org"
+    #   redirect_to "/images/screenshot.jpg"
+    #   redirect_to articles_url
+    #   redirect_to :back
+    #
+    # The redirection happens as a "302 Moved" header unless otherwise specified.
+    #
+    # Examples:
+    #   redirect_to post_url(@post), :status=>:found
+    #   redirect_to :action=>'atom', :status=>:moved_permanently
+    #   redirect_to post_url(@post), :status=>301
+    #   redirect_to :action=>'atom', :status=>302
+    #
+    # When using <tt>redirect_to :back</tt>, if there is no referrer,
+    # RedirectBackError will be raised. You may specify some fallback
+    # behavior for this case by rescuing RedirectBackError.
+    def redirect_to(options = {}, response_status = {}) #:doc:
+      raise ActionControllerError.new("Cannot redirect to nil!") if options.nil?
+
+      status = if options.is_a?(Hash) && options.key?(:status)
+        interpret_status(options.delete(:status))
+      elsif response_status.key?(:status)
+        interpret_status(response_status[:status])
+      else
+        302
+      end
+
+      url = case options
+      # The scheme name consist of a letter followed by any combination of
+      # letters, digits, and the plus ("+"), period ("."), or hyphen ("-")
+      # characters; and is terminated by a colon (":").
+      when %r{^\w[\w\d+.-]*:.*}
+        options
+      when String
+        request.protocol + request.host_with_port + options
+      when :back
+        raise RedirectBackError unless refer = request.headers["Referer"]
+        refer
+      else
+        url_for(options)
+      end
+
+      super(url, status)
     end
   end
 end
diff --git a/actionpack/lib/action_controller/base/chained/benchmarking.rb b/actionpack/lib/action_controller/base/chained/benchmarking.rb
deleted file mode 100644
index 57a1ac8314..0000000000
--- a/actionpack/lib/action_controller/base/chained/benchmarking.rb
+++ /dev/null
@@ -1,107 +0,0 @@
-require 'active_support/core_ext/benchmark'
-
-module ActionController #:nodoc:
-  # The benchmarking module times the performance of actions and reports to the logger. If the Active Record
-  # package has been included, a separate timing section for database calls will be added as well.
-  module Benchmarking #:nodoc:
-    def self.included(base)
-      base.extend(ClassMethods)
-
-      base.class_eval do
-        alias_method_chain :perform_action, :benchmark
-        alias_method_chain :render, :benchmark
-      end
-    end
-
-    module ClassMethods
-      # Log and benchmark the workings of a single block and silence whatever logging that may have happened inside it 
-      # (unless <tt>use_silence</tt> is set to false).
-      #
-      # The benchmark is only recorded if the current level of the logger matches the <tt>log_level</tt>, which makes it
-      # easy to include benchmarking statements in production software that will remain inexpensive because the benchmark
-      # will only be conducted if the log level is low enough.
-      def benchmark(title, log_level = Logger::DEBUG, use_silence = true)
-        if logger && logger.level >= log_level
-          result = nil
-          ms = Benchmark.ms { result = use_silence ? silence { yield } : yield }
-          logger.add(log_level, "#{title} (#{('%.1f' % ms)}ms)")
-          result
-        else
-          yield
-        end
-      end
-
-      # Silences the logger for the duration of the block.
-      def silence
-        old_logger_level, logger.level = logger.level, Logger::ERROR if logger
-        yield
-      ensure
-        logger.level = old_logger_level if logger
-      end
-    end
-
-    protected
-      def render_with_benchmark(options = nil, extra_options = {}, &block)
-        if logger
-          if Object.const_defined?("ActiveRecord") && ActiveRecord::Base.connected?
-            db_runtime = ActiveRecord::Base.connection.reset_runtime
-          end
-
-          render_output = nil
-          @view_runtime = Benchmark.ms { render_output = render_without_benchmark(options, extra_options, &block) }
-
-          if Object.const_defined?("ActiveRecord") && ActiveRecord::Base.connected?
-            @db_rt_before_render = db_runtime
-            @db_rt_after_render = ActiveRecord::Base.connection.reset_runtime
-            @view_runtime -= @db_rt_after_render
-          end
-
-          render_output
-        else
-          render_without_benchmark(options, extra_options, &block)
-        end
-      end    
-
-    private
-      def perform_action_with_benchmark
-        if logger && logger.info?
-          ms = [Benchmark.ms { perform_action_without_benchmark }, 0.01].max
-          logging_view          = defined?(@view_runtime)
-          logging_active_record = Object.const_defined?("ActiveRecord") && ActiveRecord::Base.connected?
-
-          log_message  = 'Completed in %.0fms' % ms
-
-          if logging_view || logging_active_record
-            log_message << " ("
-            log_message << view_runtime if logging_view
-
-            if logging_active_record
-              log_message << ", " if logging_view
-              log_message << active_record_runtime + ")"
-            else
-              ")"
-            end
-          end
-
-          log_message << " | #{response.status}"
-          log_message << " [#{complete_request_uri rescue "unknown"}]"
-
-          logger.info(log_message)
-          response.headers["X-Runtime"] = "%.0f" % ms
-        else
-          perform_action_without_benchmark
-        end
-      end
-
-      def view_runtime
-        "View: %.0f" % @view_runtime
-      end
-
-      def active_record_runtime
-        db_runtime = ActiveRecord::Base.connection.reset_runtime
-        db_runtime += @db_rt_before_render if @db_rt_before_render
-        db_runtime += @db_rt_after_render if @db_rt_after_render
-        "DB: %.0f" % db_runtime
-      end
-  end
-end
diff --git a/actionpack/lib/action_controller/base/chained/filters.rb b/actionpack/lib/action_controller/base/chained/filters.rb
deleted file mode 100644
index f528dd0686..0000000000
--- a/actionpack/lib/action_controller/base/chained/filters.rb
+++ /dev/null
@@ -1,670 +0,0 @@
-module ActionController #:nodoc:
-  module Filters #:nodoc:
-    extend ActiveSupport::Concern
-
-    class FilterChain < ActiveSupport::Callbacks::CallbackChain #:nodoc:
-      def append_filter_to_chain(filters, filter_type, &block)
-        pos = find_filter_append_position(filters, filter_type)
-        update_filter_chain(filters, filter_type, pos, &block)
-      end
-
-      def prepend_filter_to_chain(filters, filter_type, &block)
-        pos = find_filter_prepend_position(filters, filter_type)
-        update_filter_chain(filters, filter_type, pos, &block)
-      end
-
-      def create_filters(filters, filter_type, &block)
-        filters, conditions = extract_options(filters, &block)
-        filters.map! { |filter| find_or_create_filter(filter, filter_type, conditions) }
-        filters
-      end
-
-      def skip_filter_in_chain(*filters, &test)
-        filters, conditions = extract_options(filters)
-        filters.each do |filter|
-          if callback = find(filter) then delete(callback) end
-        end if conditions.empty?
-        update_filter_in_chain(filters, :skip => conditions, &test)
-      end
-
-      private
-        def update_filter_chain(filters, filter_type, pos, &block)
-          new_filters = create_filters(filters, filter_type, &block)
-          insert(pos, new_filters).flatten!
-        end
-
-        def find_filter_append_position(filters, filter_type)
-          # appending an after filter puts it at the end of the call chain
-          # before and around filters go before the first after filter in the chain
-          unless filter_type == :after
-            each_with_index do |f,i|
-              return i if f.after?
-            end
-          end
-          return -1
-        end
-
-        def find_filter_prepend_position(filters, filter_type)
-          # prepending a before or around filter puts it at the front of the call chain
-          # after filters go before the first after filter in the chain
-          if filter_type == :after
-            each_with_index do |f,i|
-              return i if f.after?
-            end
-            return -1
-          end
-          return 0
-        end
-
-        def find_or_create_filter(filter, filter_type, options = {})
-          update_filter_in_chain([filter], options)
-
-          if found_filter = find(filter) { |f| f.type == filter_type }
-            found_filter
-          else
-            filter_kind = case
-            when filter.respond_to?(:before) && filter_type == :before
-              :before
-            when filter.respond_to?(:after) && filter_type == :after
-              :after
-            else
-              :filter
-            end
-
-            case filter_type
-            when :before
-              BeforeFilter.new(filter_kind, filter, options)
-            when :after
-              AfterFilter.new(filter_kind, filter, options)
-            else
-              AroundFilter.new(filter_kind, filter, options)
-            end
-          end
-        end
-
-        def update_filter_in_chain(filters, options, &test)
-          filters.map! { |f| block_given? ? find(f, &test) : find(f) }
-          filters.compact!
-
-          map! do |filter|
-            if filters.include?(filter)
-              new_filter = filter.dup
-              new_filter.update_options!(options)
-              new_filter
-            else
-              filter
-            end
-          end
-        end
-    end
-
-    class Filter < ActiveSupport::Callbacks::Callback #:nodoc:
-      def initialize(kind, method, options = {})
-        super
-        update_options! options
-      end
-
-      # override these to return true in appropriate subclass
-      def before?
-        false
-      end
-
-      def after?
-        false
-      end
-
-      def around?
-        false
-      end
-
-      # Make sets of strings from :only/:except options
-      def update_options!(other)
-        if other
-          convert_only_and_except_options_to_sets_of_strings(other)
-          if other[:skip]
-            convert_only_and_except_options_to_sets_of_strings(other[:skip])
-          end
-        end
-
-        options.update(other)
-      end
-
-      private
-        def should_not_skip?(controller)
-          if options[:skip]
-            !included_in_action?(controller, options[:skip])
-          else
-            true
-          end
-        end
-
-        def included_in_action?(controller, options)
-          if options[:only]
-            options[:only].include?(controller.action_name)
-          elsif options[:except]
-            !options[:except].include?(controller.action_name)
-          else
-            true
-          end
-        end
-
-        def should_run_callback?(controller)
-          should_not_skip?(controller) && included_in_action?(controller, options) && super
-        end
-
-        def convert_only_and_except_options_to_sets_of_strings(opts)
-          [:only, :except].each do |key|
-            if values = opts[key]
-              opts[key] = Array(values).map {|val| val.to_s }.to_set
-            end
-          end
-        end
-    end
-
-    class AroundFilter < Filter #:nodoc:
-      def type
-        :around
-      end
-
-      def around?
-        true
-      end
-
-      def call(controller, &block)
-        if should_run_callback?(controller)
-          method = filter_responds_to_before_and_after? ? around_proc : self.method
-
-          # For around_filter do |controller, action|
-          if method.is_a?(Proc) && method.arity == 2
-            evaluate_method(method, controller, block)
-          else
-            evaluate_method(method, controller, &block)
-          end
-        else
-          block.call
-        end
-      end
-
-      private
-        def filter_responds_to_before_and_after?
-          method.respond_to?(:before) && method.respond_to?(:after)
-        end
-
-        def around_proc
-          Proc.new do |controller, action|
-            method.before(controller)
-
-            if controller.__send__(:performed?)
-              controller.__send__(:halt_filter_chain, method, :rendered_or_redirected)
-            else
-              begin
-                action.call
-              ensure
-                method.after(controller)
-              end
-            end
-          end
-        end
-    end
-
-    class BeforeFilter < Filter #:nodoc:
-      def type
-        :before
-      end
-
-      def before?
-        true
-      end
-
-      def call(controller, &block)
-        super
-        if controller.__send__(:performed?)
-          controller.__send__(:halt_filter_chain, method, :rendered_or_redirected)
-        end
-      end
-    end
-
-    class AfterFilter < Filter #:nodoc:
-      def type
-        :after
-      end
-
-      def after?
-        true
-      end
-    end
-
-    # Filters enable controllers to run shared pre- and post-processing code for its actions. These filters can be used to do
-    # authentication, caching, or auditing before the intended action is performed. Or to do localization or output
-    # compression after the action has been performed. Filters have access to the request, response, and all the instance
-    # variables set by other filters in the chain or by the action (in the case of after filters).
-    #
-    # == Filter inheritance
-    #
-    # Controller inheritance hierarchies share filters downwards, but subclasses can also add or skip filters without
-    # affecting the superclass. For example:
-    #
-    #   class BankController < ActionController::Base
-    #     before_filter :audit
-    #
-    #     private
-    #       def audit
-    #         # record the action and parameters in an audit log
-    #       end
-    #   end
-    #
-    #   class VaultController < BankController
-    #     before_filter :verify_credentials
-    #
-    #     private
-    #       def verify_credentials
-    #         # make sure the user is allowed into the vault
-    #       end
-    #   end
-    #
-    # Now any actions performed on the BankController will have the audit method called before. On the VaultController,
-    # first the audit method is called, then the verify_credentials method. If the audit method renders or redirects, then
-    # verify_credentials and the intended action are never called.
-    #
-    # == Filter types
-    #
-    # A filter can take one of three forms: method reference (symbol), external class, or inline method (proc). The first
-    # is the most common and works by referencing a protected or private method somewhere in the inheritance hierarchy of
-    # the controller by use of a symbol. In the bank example above, both BankController and VaultController use this form.
-    #
-    # Using an external class makes for more easily reused generic filters, such as output compression. External filter classes
-    # are implemented by having a static +filter+ method on any class and then passing this class to the filter method. Example:
-    #
-    #   class OutputCompressionFilter
-    #     def self.filter(controller)
-    #       controller.response.body = compress(controller.response.body)
-    #     end
-    #   end
-    #
-    #   class NewspaperController < ActionController::Base
-    #     after_filter OutputCompressionFilter
-    #   end
-    #
-    # The filter method is passed the controller instance and is hence granted access to all aspects of the controller and can
-    # manipulate them as it sees fit.
-    #
-    # The inline method (using a proc) can be used to quickly do something small that doesn't require a lot of explanation.
-    # Or just as a quick test. It works like this:
-    #
-    #   class WeblogController < ActionController::Base
-    #     before_filter { |controller| head(400) if controller.params["stop_action"] }
-    #   end
-    #
-    # As you can see, the block expects to be passed the controller after it has assigned the request to the internal variables.
-    # This means that the block has access to both the request and response objects complete with convenience methods for params,
-    # session, template, and assigns. Note: The inline method doesn't strictly have to be a block; any object that responds to call
-    # and returns 1 or -1 on arity will do (such as a Proc or an Method object).
-    #
-    # Please note that around_filters function a little differently than the normal before and after filters with regard to filter
-    # types. Please see the section dedicated to around_filters below.
-    #
-    # == Filter chain ordering
-    #
-    # Using <tt>before_filter</tt> and <tt>after_filter</tt> appends the specified filters to the existing chain. That's usually
-    # just fine, but some times you care more about the order in which the filters are executed. When that's the case, you
-    # can use <tt>prepend_before_filter</tt> and <tt>prepend_after_filter</tt>. Filters added by these methods will be put at the
-    # beginning of their respective chain and executed before the rest. For example:
-    #
-    #   class ShoppingController < ActionController::Base
-    #     before_filter :verify_open_shop
-    #
-    #   class CheckoutController < ShoppingController
-    #     prepend_before_filter :ensure_items_in_cart, :ensure_items_in_stock
-    #
-    # The filter chain for the CheckoutController is now <tt>:ensure_items_in_cart, :ensure_items_in_stock,</tt>
-    # <tt>:verify_open_shop</tt>. So if either of the ensure filters renders or redirects, we'll never get around to see if the shop
-    # is open or not.
-    #
-    # You may pass multiple filter arguments of each type as well as a filter block.
-    # If a block is given, it is treated as the last argument.
-    #
-    # == Around filters
-    #
-    # Around filters wrap an action, executing code both before and after.
-    # They may be declared as method references, blocks, or objects responding
-    # to +filter+ or to both +before+ and +after+.
-    #
-    # To use a method as an +around_filter+, pass a symbol naming the Ruby method.
-    # Yield (or <tt>block.call</tt>) within the method to run the action.
-    #
-    #   around_filter :catch_exceptions
-    #
-    #   private
-    #     def catch_exceptions
-    #       yield
-    #     rescue => exception
-    #       logger.debug "Caught exception! #{exception}"
-    #       raise
-    #     end
-    #
-    # To use a block as an +around_filter+, pass a block taking as args both
-    # the controller and the action block. You can't call yield directly from
-    # an +around_filter+ block; explicitly call the action block instead:
-    #
-    #   around_filter do |controller, action|
-    #     logger.debug "before #{controller.action_name}"
-    #     action.call
-    #     logger.debug "after #{controller.action_name}"
-    #   end
-    #
-    # To use a filter object with +around_filter+, pass an object responding
-    # to <tt>:filter</tt> or both <tt>:before</tt> and <tt>:after</tt>. With a
-    # filter method, yield to the block as above:
-    #
-    #   around_filter BenchmarkingFilter
-    #
-    #   class BenchmarkingFilter
-    #     def self.filter(controller, &block)
-    #       Benchmark.measure(&block)
-    #     end
-    #   end
-    #
-    # With +before+ and +after+ methods:
-    #
-    #   around_filter Authorizer.new
-    #
-    #   class Authorizer
-    #     # This will run before the action. Redirecting aborts the action.
-    #     def before(controller)
-    #       unless user.authorized?
-    #         redirect_to(login_url)
-    #       end
-    #     end
-    #
-    #     # This will run after the action if and only if before did not render or redirect.
-    #     def after(controller)
-    #     end
-    #   end
-    #
-    # If the filter has +before+ and +after+ methods, the +before+ method will be
-    # called before the action. If +before+ renders or redirects, the filter chain is
-    # halted and +after+ will not be run. See Filter Chain Halting below for
-    # an example.
-    #
-    # == Filter chain skipping
-    #
-    # Declaring a filter on a base class conveniently applies to its subclasses,
-    # but sometimes a subclass should skip some of its superclass' filters:
-    #
-    #   class ApplicationController < ActionController::Base
-    #     before_filter :authenticate
-    #     around_filter :catch_exceptions
-    #   end
-    #
-    #   class WeblogController < ApplicationController
-    #     # Will run the :authenticate and :catch_exceptions filters.
-    #   end
-    #
-    #   class SignupController < ApplicationController
-    #     # Skip :authenticate, run :catch_exceptions.
-    #     skip_before_filter :authenticate
-    #   end
-    #
-    #   class ProjectsController < ApplicationController
-    #     # Skip :catch_exceptions, run :authenticate.
-    #     skip_filter :catch_exceptions
-    #   end
-    #
-    #   class ClientsController < ApplicationController
-    #     # Skip :catch_exceptions and :authenticate unless action is index.
-    #     skip_filter :catch_exceptions, :authenticate, :except => :index
-    #   end
-    #
-    # == Filter conditions
-    #
-    # Filters may be limited to specific actions by declaring the actions to
-    # include or exclude. Both options accept single actions
-    # (<tt>:only => :index</tt>) or arrays of actions
-    # (<tt>:except => [:foo, :bar]</tt>).
-    #
-    #   class Journal < ActionController::Base
-    #     # Require authentication for edit and delete.
-    #     before_filter :authorize, :only => [:edit, :delete]
-    #
-    #     # Passing options to a filter with a block.
-    #     around_filter(:except => :index) do |controller, action_block|
-    #       results = Profiler.run(&action_block)
-    #       controller.response.sub! "</body>", "#{results}</body>"
-    #     end
-    #
-    #     private
-    #       def authorize
-    #         # Redirect to login unless authenticated.
-    #       end
-    #   end
-    #
-    # == Filter Chain Halting
-    #
-    # <tt>before_filter</tt> and <tt>around_filter</tt> may halt the request
-    # before a controller action is run. This is useful, for example, to deny
-    # access to unauthenticated users or to redirect from HTTP to HTTPS.
-    # Simply call render or redirect. After filters will not be executed if the filter 
-    # chain is halted.
-    #
-    # Around filters halt the request unless the action block is called.
-    # Given these filters
-    #   after_filter :after
-    #   around_filter :around
-    #   before_filter :before
-    #
-    # The filter chain will look like:
-    #
-    #   ...
-    #   . \
-    #   .  #around (code before yield)
-    #   .  .  \
-    #   .  .  #before (actual filter code is run)
-    #   .  .  .  \
-    #   .  .  .  execute controller action
-    #   .  .  .  /
-    #   .  .  ...
-    #   .  .  /
-    #   .  #around (code after yield)
-    #   . /
-    #   #after (actual filter code is run, unless the around filter does not yield)
-    #
-    # If +around+ returns before yielding, +after+ will still not be run. The +before+
-    # filter and controller action will not be run. If +before+ renders or redirects,
-    # the second half of +around+ and will still run but +after+ and the
-    # action will not. If +around+ fails to yield, +after+ will not be run.
-    module ClassMethods
-      # The passed <tt>filters</tt> will be appended to the filter_chain and
-      # will execute before the action on this controller is performed.
-      def append_before_filter(*filters, &block)
-        filter_chain.append_filter_to_chain(filters, :before, &block)
-      end
-
-      # The passed <tt>filters</tt> will be prepended to the filter_chain and
-      # will execute before the action on this controller is performed.
-      def prepend_before_filter(*filters, &block)
-        filter_chain.prepend_filter_to_chain(filters, :before, &block)
-      end
-
-      # Shorthand for append_before_filter since it's the most common.
-      alias :before_filter :append_before_filter
-
-      # The passed <tt>filters</tt> will be appended to the array of filters
-      # that run _after_ actions on this controller are performed.
-      def append_after_filter(*filters, &block)
-        filter_chain.append_filter_to_chain(filters, :after, &block)
-      end
-
-      # The passed <tt>filters</tt> will be prepended to the array of filters
-      # that run _after_ actions on this controller are performed.
-      def prepend_after_filter(*filters, &block)
-        filter_chain.prepend_filter_to_chain(filters, :after, &block)
-      end
-
-      # Shorthand for append_after_filter since it's the most common.
-      alias :after_filter :append_after_filter
-
-      # If you <tt>append_around_filter A.new, B.new</tt>, the filter chain looks like
-      #
-      #   B#before
-      #     A#before
-      #       # run the action
-      #     A#after
-      #   B#after
-      #
-      # With around filters which yield to the action block, +before+ and +after+
-      # are the code before and after the yield.
-      def append_around_filter(*filters, &block)
-        filter_chain.append_filter_to_chain(filters, :around, &block)
-      end
-
-      # If you <tt>prepend_around_filter A.new, B.new</tt>, the filter chain looks like:
-      #
-      #   A#before
-      #     B#before
-      #       # run the action
-      #     B#after
-      #   A#after
-      #
-      # With around filters which yield to the action block, +before+ and +after+
-      # are the code before and after the yield.
-      def prepend_around_filter(*filters, &block)
-        filter_chain.prepend_filter_to_chain(filters, :around, &block)
-      end
-
-      # Shorthand for +append_around_filter+ since it's the most common.
-      alias :around_filter :append_around_filter
-
-      # Removes the specified filters from the +before+ filter chain. Note that this only works for skipping method-reference
-      # filters, not procs. This is especially useful for managing the chain in inheritance hierarchies where only one out
-      # of many sub-controllers need a different hierarchy.
-      #
-      # You can control the actions to skip the filter for with the <tt>:only</tt> and <tt>:except</tt> options,
-      # just like when you apply the filters.
-      def skip_before_filter(*filters)
-        filter_chain.skip_filter_in_chain(*filters, &:before?)
-      end
-
-      # Removes the specified filters from the +after+ filter chain. Note that this only works for skipping method-reference
-      # filters, not procs. This is especially useful for managing the chain in inheritance hierarchies where only one out
-      # of many sub-controllers need a different hierarchy.
-      #
-      # You can control the actions to skip the filter for with the <tt>:only</tt> and <tt>:except</tt> options,
-      # just like when you apply the filters.
-      def skip_after_filter(*filters)
-        filter_chain.skip_filter_in_chain(*filters, &:after?)
-      end
-
-      # Removes the specified filters from the filter chain. This only works for method reference (symbol)
-      # filters, not procs. This method is different from skip_after_filter and skip_before_filter in that
-      # it will match any before, after or yielding around filter.
-      #
-      # You can control the actions to skip the filter for with the <tt>:only</tt> and <tt>:except</tt> options,
-      # just like when you apply the filters.
-      def skip_filter(*filters)
-        filter_chain.skip_filter_in_chain(*filters)
-      end
-
-      # Returns an array of Filter objects for this controller.
-      def filter_chain
-        read_inheritable_attribute('filter_chain') || write_inheritable_attribute('filter_chain', FilterChain.new)
-      end
-
-      # Returns all the before filters for this class and all its ancestors.
-      # This method returns the actual filter that was assigned in the controller to maintain existing functionality.
-      def before_filters #:nodoc:
-        filter_chain.select(&:before?).map(&:method)
-      end
-
-      # Returns all the after filters for this class and all its ancestors.
-      # This method returns the actual filter that was assigned in the controller to maintain existing functionality.
-      def after_filters #:nodoc:
-        filter_chain.select(&:after?).map(&:method)
-      end
-    end
-
-    module InstanceMethods # :nodoc:
-      def self.included(base)
-        base.class_eval do
-          alias_method_chain :perform_action, :filters
-          alias_method_chain :process, :filters
-        end
-      end
-
-      protected
-        def process_with_filters(request, response, method = :perform_action, *arguments) #:nodoc:
-          @before_filter_chain_aborted = false
-          process_without_filters(request, response, method, *arguments)
-        end
-
-        def perform_action_with_filters
-          call_filters(self.class.filter_chain, 0, 0)
-        end
-
-      private
-        def call_filters(chain, index, nesting)
-          index = run_before_filters(chain, index, nesting)
-          aborted = @before_filter_chain_aborted
-          perform_action_without_filters unless performed? || aborted
-          return index if nesting != 0 || aborted
-          run_after_filters(chain, index)
-        end
-
-        def run_before_filters(chain, index, nesting)
-          while chain[index]
-            filter, index = chain[index], index
-            break unless filter # end of call chain reached
-
-            case filter
-            when BeforeFilter
-              filter.call(self)  # invoke before filter
-              index = index.next
-              break if @before_filter_chain_aborted
-            when AroundFilter
-              yielded = false
-
-              filter.call(self) do
-                yielded = true
-                # all remaining before and around filters will be run in this call
-                index = call_filters(chain, index.next, nesting.next)
-              end
-
-              halt_filter_chain(filter, :did_not_yield) unless yielded
-
-              break
-            else
-              break  # no before or around filters left
-            end
-          end
-
-          index
-        end
-
-        def run_after_filters(chain, index)
-          seen_after_filter = false
-
-          while chain[index]
-            filter, index = chain[index], index
-            break unless filter # end of call chain reached
-
-            case filter
-            when AfterFilter
-              seen_after_filter = true
-              filter.call(self)  # invoke after filter
-            else
-              # implementation error or someone has mucked with the filter chain
-              raise ActionControllerError, "filter #{filter.inspect} was in the wrong place!" if seen_after_filter
-            end
-
-            index = index.next
-          end
-
-          index.next
-        end
-
-        def halt_filter_chain(filter, reason)
-          @before_filter_chain_aborted = true
-          logger.info "Filter chain halted as [#{filter.inspect}] #{reason}." if logger
-        end
-    end
-  end
-end
diff --git a/actionpack/lib/action_controller/new_base/compatibility.rb b/actionpack/lib/action_controller/base/compatibility.rb
index f278c2da14..cd4b72b1c6 100644
--- a/actionpack/lib/action_controller/new_base/compatibility.rb
+++ b/actionpack/lib/action_controller/base/compatibility.rb
@@ -114,8 +114,17 @@ module ActionController
       super || (respond_to?(:method_missing) && "_handle_method_missing")
     end
 
-    def _layout_prefix(name)
-      super unless name =~ /\blayouts/
+    def _find_by_parts(name, details)
+      details[:prefix] = nil if name =~ /\blayouts/
+      super
+    end
+    
+    # Move this into a "don't run in production" module
+    def _default_layout(details, require_layout = false)
+      super
+    rescue ActionView::MissingTemplate
+      _find_by_parts(_layout({}), {})
+      nil
     end
 
     def performed?
diff --git a/actionpack/lib/action_controller/new_base/conditional_get.rb b/actionpack/lib/action_controller/base/conditional_get.rb
index d287ec4994..d287ec4994 100644
--- a/actionpack/lib/action_controller/new_base/conditional_get.rb
+++ b/actionpack/lib/action_controller/base/conditional_get.rb
diff --git a/actionpack/lib/action_controller/base/exceptions.rb b/actionpack/lib/action_controller/base/exceptions.rb
new file mode 100644
index 0000000000..d0811254cb
--- /dev/null
+++ b/actionpack/lib/action_controller/base/exceptions.rb
@@ -0,0 +1,58 @@
+module ActionController
+  class ActionControllerError < StandardError #:nodoc:
+  end
+
+  class SessionRestoreError < ActionControllerError #:nodoc:
+  end
+
+  class RenderError < ActionControllerError #:nodoc:
+  end
+
+  class RoutingError < ActionControllerError #:nodoc:
+    attr_reader :failures
+    def initialize(message, failures=[])
+      super(message)
+      @failures = failures
+    end
+  end
+
+  class MethodNotAllowed < ActionControllerError #:nodoc:
+    attr_reader :allowed_methods
+
+    def initialize(*allowed_methods)
+      super("Only #{allowed_methods.to_sentence(:locale => :en)} requests are allowed.")
+      @allowed_methods = allowed_methods
+    end
+
+    def allowed_methods_header
+      allowed_methods.map { |method_symbol| method_symbol.to_s.upcase } * ', '
+    end
+
+    def handle_response!(response)
+      response.headers['Allow'] ||= allowed_methods_header
+    end
+  end
+  
+  class NotImplemented < MethodNotAllowed #:nodoc:
+  end
+
+  class UnknownController < ActionControllerError #:nodoc:
+  end
+
+  class MissingFile < ActionControllerError #:nodoc:
+  end
+
+  class RenderError < ActionControllerError #:nodoc:
+  end
+
+  class SessionOverflowError < ActionControllerError #:nodoc:
+    DEFAULT_MESSAGE = 'Your session data is larger than the data column in which it is to be stored. You must increase the size of your data column if you intend to store large data.'
+
+    def initialize(message = nil)
+      super(message || DEFAULT_MESSAGE)
+    end
+  end
+
+  class UnknownHttpMethod < ActionControllerError #:nodoc:
+  end
+end
\ No newline at end of file
diff --git a/actionpack/lib/action_controller/base/filter_parameter_logging.rb b/actionpack/lib/action_controller/base/filter_parameter_logging.rb
index 8370ba6fc0..065e62a37f 100644
--- a/actionpack/lib/action_controller/base/filter_parameter_logging.rb
+++ b/actionpack/lib/action_controller/base/filter_parameter_logging.rb
@@ -2,10 +2,7 @@ module ActionController
   module FilterParameterLogging
     extend ActiveSupport::Concern
 
-    # TODO : Remove the defined? check when new base is the main base
-    if defined?(ActionController::Http)
-      include AbstractController::Logger
-    end
+    include AbstractController::Logger
 
     included do
       include InstanceMethodsForNewBase
@@ -46,6 +43,10 @@ module ActionController
               filtered_parameters[key] = '[FILTERED]'
             elsif value.is_a?(Hash)
               filtered_parameters[key] = filter_parameters(value)
+            elsif value.is_a?(Array)
+              filtered_parameters[key] = value.collect do |item|
+                filter_parameters(item)
+              end
             elsif block_given?
               key = key.dup
               value = value.dup if value
diff --git a/actionpack/lib/action_controller/base/chained/flash.rb b/actionpack/lib/action_controller/base/flash.rb
index 42c6e430ca..590f9be3ac 100644
--- a/actionpack/lib/action_controller/base/chained/flash.rb
+++ b/actionpack/lib/action_controller/base/flash.rb
@@ -28,20 +28,7 @@ module ActionController #:nodoc:
   module Flash
     extend ActiveSupport::Concern
 
-    # TODO : Remove the defined? check when new base is the main base
-    include Session if defined?(ActionController::Http)
-
-    included do
-      # TODO : Remove the defined? check when new base is the main base
-      if defined?(ActionController::Http)
-        include InstanceMethodsForNewBase
-      else
-        include InstanceMethodsForBase
-
-        alias_method_chain :perform_action, :flash
-        alias_method_chain :reset_session,  :flash
-      end
-    end
+    include Session
 
     class FlashNow #:nodoc:
       def initialize(flash)
@@ -148,49 +135,30 @@ module ActionController #:nodoc:
         end
     end
 
-    module InstanceMethodsForBase #:nodoc:
-      protected
-        def perform_action_with_flash
-          perform_action_without_flash
-          if defined? @_flash
-            @_flash.store(session)
-            remove_instance_variable(:@_flash)
-          end
-        end
-
-        def reset_session_with_flash
-          reset_session_without_flash
-          remove_instance_variable(:@_flash) if defined?(@_flash)
-        end
+  protected
+    def process_action(method_name)
+      super
+      if defined? @_flash
+        @_flash.store(session)
+        remove_instance_variable(:@_flash)
+      end
     end
 
-    module InstanceMethodsForNewBase #:nodoc:
-      protected
-        def process_action(method_name)
-          super
-          if defined? @_flash
-            @_flash.store(session)
-            remove_instance_variable(:@_flash)
-          end
-        end
-
-        def reset_session
-          super
-          remove_instance_variable(:@_flash) if defined?(@_flash)
-        end
+    def reset_session
+      super
+      remove_instance_variable(:@_flash) if defined?(@_flash)
     end
 
-    protected
-      # Access the contents of the flash. Use <tt>flash["notice"]</tt> to
-      # read a notice you put there or <tt>flash["notice"] = "hello"</tt>
-      # to put a new one.
-      def flash #:doc:
-        if !defined?(@_flash)
-          @_flash = session["flash"] || FlashHash.new
-          @_flash.sweep
-        end
-
-        @_flash
+    # Access the contents of the flash. Use <tt>flash["notice"]</tt> to
+    # read a notice you put there or <tt>flash["notice"] = "hello"</tt>
+    # to put a new one.
+    def flash #:doc:
+      if !defined?(@_flash)
+        @_flash = session["flash"] || FlashHash.new
+        @_flash.sweep
       end
+
+      @_flash
+    end
   end
 end
diff --git a/actionpack/lib/action_controller/base/helpers.rb b/actionpack/lib/action_controller/base/helpers.rb
index f74158bc13..2fa5ea6519 100644
--- a/actionpack/lib/action_controller/base/helpers.rb
+++ b/actionpack/lib/action_controller/base/helpers.rb
@@ -1,85 +1,80 @@
+require 'active_support/core_ext/load_error'
+require 'active_support/core_ext/name_error'
 require 'active_support/dependencies'
 
-# FIXME: helper { ... } is broken on Ruby 1.9
-module ActionController #:nodoc:
-  module Helpers #:nodoc:
+module ActionController
+  # The Rails framework provides a large number of helpers for working with +assets+, +dates+, +forms+,
+  # +numbers+ and model objects, to name a few. These helpers are available to all templates
+  # by default.
+  #
+  # In addition to using the standard template helpers provided in the Rails framework, creating custom helpers to
+  # extract complicated logic or reusable functionality is strongly encouraged. By default, the controller will
+  # include a helper whose name matches that of the controller, e.g., <tt>MyController</tt> will automatically
+  # include <tt>MyHelper</tt>.
+  #
+  # Additional helpers can be specified using the +helper+ class method in <tt>ActionController::Base</tt> or any
+  # controller which inherits from it.
+  #
+  # ==== Examples
+  # The +to_s+ method from the Time class can be wrapped in a helper method to display a custom message if
+  # the Time object is blank:
+  #
+  #   module FormattedTimeHelper
+  #     def format_time(time, format=:long, blank_message="&nbsp;")
+  #       time.blank? ? blank_message : time.to_s(format)
+  #     end
+  #   end
+  #
+  # FormattedTimeHelper can now be included in a controller, using the +helper+ class method:
+  #
+  #   class EventsController < ActionController::Base
+  #     helper FormattedTimeHelper
+  #     def index
+  #       @events = Event.find(:all)
+  #     end
+  #   end
+  #
+  # Then, in any view rendered by <tt>EventController</tt>, the <tt>format_time</tt> method can be called:
+  #
+  #   <% @events.each do |event| -%>
+  #     <p>
+  #       <% format_time(event.time, :short, "N/A") %> | <%= event.name %>
+  #     </p>
+  #   <% end -%>
+  #
+  # Finally, assuming we have two event instances, one which has a time and one which does not,
+  # the output might look like this:
+  #
+  #   23 Aug 11:30 | Carolina Railhawks Soccer Match
+  #   N/A | Carolina Railhaws Training Workshop
+  #
+  module Helpers
     extend ActiveSupport::Concern
 
-    included do
-      # Initialize the base module to aggregate its helpers.
-      class_inheritable_accessor :master_helper_module
-      self.master_helper_module = Module.new
+    include AbstractController::Helpers
 
+    included do
       # Set the default directory for helpers
-      class_inheritable_accessor :helpers_dir
-      self.helpers_dir = (defined?(RAILS_ROOT) ? "#{RAILS_ROOT}/app/helpers" : "app/helpers")
-
-      class << self
-        alias_method_chain :inherited, :helper
+      extlib_inheritable_accessor(:helpers_dir) do
+        defined?(RAILS_ROOT) ? "#{RAILS_ROOT}/app/helpers" : "app/helpers"
       end
     end
 
-    # The Rails framework provides a large number of helpers for working with +assets+, +dates+, +forms+, 
-    # +numbers+ and Active Record objects, to name a few. These helpers are available to all templates
-    # by default.
-    #
-    # In addition to using the standard template helpers provided in the Rails framework, creating custom helpers to
-    # extract complicated logic or reusable functionality is strongly encouraged.  By default, the controller will 
-    # include a helper whose name matches that of the controller, e.g., <tt>MyController</tt> will automatically
-    # include <tt>MyHelper</tt>.
-    # 
-    # Additional helpers can be specified using the +helper+ class method in <tt>ActionController::Base</tt> or any
-    # controller which inherits from it.
-    #
-    # ==== Examples
-    # The +to_s+ method from the Time class can be wrapped in a helper method to display a custom message if 
-    # the Time object is blank:
-    #
-    #   module FormattedTimeHelper
-    #     def format_time(time, format=:long, blank_message="&nbsp;")
-    #       time.blank? ? blank_message : time.to_s(format)
-    #     end
-    #   end
-    #
-    # FormattedTimeHelper can now be included in a controller, using the +helper+ class method:
-    #
-    #   class EventsController < ActionController::Base
-    #     helper FormattedTimeHelper
-    #     def index
-    #       @events = Event.find(:all)
-    #     end
-    #   end
-    #
-    # Then, in any view rendered by <tt>EventController</tt>, the <tt>format_time</tt> method can be called:
-    #
-    #   <% @events.each do |event| -%>
-    #     <p>
-    #       <% format_time(event.time, :short, "N/A") %> | <%= event.name %> 
-    #     </p>
-    #   <% end -%>
-    #
-    # Finally, assuming we have two event instances, one which has a time and one which does not, 
-    # the output might look like this:
-    #
-    #   23 Aug 11:30 | Carolina Railhawks Soccer Match 
-    #   N/A | Carolina Railhaws Training Workshop
-    #
     module ClassMethods
-      # Makes all the (instance) methods in the helper module available to templates rendered through this controller.
-      # See ActionView::Helpers (link:classes/ActionView/Helpers.html) for more about making your own helper modules
-      # available to the templates.
-      def add_template_helper(helper_module) #:nodoc:
-        master_helper_module.module_eval { include helper_module }
+      def inherited(klass)
+        klass.class_eval { default_helper_module! unless name.blank? }
+        super
       end
 
       # The +helper+ class method can take a series of helper module names, a block, or both.
       #
-      # * <tt>*args</tt>: One or more modules, strings or symbols, or the special symbol <tt>:all</tt>.
-      # * <tt>&block</tt>: A block defining helper methods.
-      # 
+      # ==== Parameters
+      # *args<Array[Module, Symbol, String, :all]>
+      # block<Block>:: A block defining helper methods
+      #
       # ==== Examples
-      # When the argument is a string or symbol, the method will provide the "_helper" suffix, require the file 
-      # and include the module in the template class.  The second form illustrates how to include custom helpers 
+      # When the argument is a string or symbol, the method will provide the "_helper" suffix, require the file
+      # and include the module in the template class.  The second form illustrates how to include custom helpers
       # when working with namespaced controllers, or other cases where the file containing the helper definition is not
       # in one of Rails' standard load paths:
       #   helper :foo             # => requires 'foo_helper' and includes FooHelper
@@ -92,78 +87,23 @@ module ActionController #:nodoc:
       # <tt>ActionController::Base.helpers_dir</tt> (defaults to <tt>app/helpers/**/*.rb</tt> under RAILS_ROOT).
       #   helper :all
       #
-      # Additionally, the +helper+ class method can receive and evaluate a block, making the methods defined available 
+      # Additionally, the +helper+ class method can receive and evaluate a block, making the methods defined available
       # to the template.
       #   # One line
       #   helper { def hello() "Hello, world!" end }
       #   # Multi-line
       #   helper do
-      #     def foo(bar) 
-      #       "#{bar} is the very best" 
+      #     def foo(bar)
+      #       "#{bar} is the very best"
       #     end
       #   end
-      # 
+      #
       # Finally, all the above styles can be mixed together, and the +helper+ method can be invoked with a mix of
       # +symbols+, +strings+, +modules+ and blocks.
       #   helper(:three, BlindHelper) { def mice() 'mice' end }
       #
       def helper(*args, &block)
-        args.flatten.each do |arg|
-          case arg
-            when Module
-              add_template_helper(arg)
-            when :all
-              helper(all_application_helpers)
-            when String, Symbol
-              file_name  = arg.to_s.underscore + '_helper'
-              class_name = file_name.camelize
-
-              begin
-                require_dependency(file_name)
-              rescue LoadError => load_error
-                requiree = / -- (.*?)(\.rb)?$/.match(load_error.message).to_a[1]
-                if requiree == file_name
-                  msg = "Missing helper file helpers/#{file_name}.rb"
-                  raise LoadError.new(msg).copy_blame!(load_error)
-                else
-                  raise
-                end
-              end
-
-              add_template_helper(class_name.constantize)
-            else
-              raise ArgumentError, "helper expects String, Symbol, or Module argument (was: #{args.inspect})"
-          end
-        end
-
-        # Evaluate block in template class if given.
-        master_helper_module.module_eval(&block) if block_given?
-      end
-
-      # Declare a controller method as a helper. For example, the following
-      # makes the +current_user+ controller method available to the view:
-      #   class ApplicationController < ActionController::Base
-      #     helper_method :current_user, :logged_in?
-      #
-      #     def current_user
-      #       @current_user ||= User.find_by_id(session[:user])
-      #     end
-      #
-      #      def logged_in?
-      #        current_user != nil
-      #      end
-      #   end
-      #
-      # In a view:
-      #  <% if logged_in? -%>Welcome, <%= current_user.name %><% end -%>
-      def helper_method(*methods)
-        methods.flatten.each do |method|
-          master_helper_module.module_eval <<-end_eval
-            def #{method}(*args, &block)                    # def current_user(*args, &block)
-              controller.send(%(#{method}), *args, &block)  #   controller.send(%(current_user), *args, &block)
-            end                                             # end
-          end_eval
-        end
+        super(*_modules_for_helpers(args), &block)
       end
 
       # Declares helper accessors for controller attributes. For example, the
@@ -171,51 +111,68 @@ module ActionController #:nodoc:
       # controller and makes them available to the view:
       #   helper_attr :name
       #   attr_accessor :name
+      #
+      # ==== Parameters
+      # *attrs<Array[String, Symbol]>:: Names of attributes to be converted
+      #   into helpers.
       def helper_attr(*attrs)
         attrs.flatten.each { |attr| helper_method(attr, "#{attr}=") }
       end
 
       # Provides a proxy to access helpers methods from outside the view.
       def helpers
-        unless @helper_proxy
-          @helper_proxy = ActionView::Base.new
-          @helper_proxy.extend master_helper_module
-        else
-          @helper_proxy
-        end
+        @helper_proxy ||= ActionView::Base.new.extend(_helpers)
       end
 
-      private
-        def default_helper_module!
-          unless name.blank?
-            module_name = name.sub(/Controller$|$/, 'Helper')
-            module_path = module_name.split('::').map { |m| m.underscore }.join('/')
-            require_dependency module_path
-            helper module_name.constantize
+    private
+      # Returns a list of modules, normalized from the acceptable kinds of
+      # helpers with the following behavior:
+      # String or Symbol:: :FooBar or "FooBar" becomes "foo_bar_helper",
+      #   and "foo_bar_helper.rb" is loaded using require_dependency.
+      # :all:: Loads all modules in the #helpers_dir
+      # Module:: No further processing
+      #
+      # After loading the appropriate files, the corresponding modules
+      # are returned.
+      #
+      # ==== Parameters
+      # args<Array[String, Symbol, Module, all]>:: A list of helpers
+      #
+      # ==== Returns
+      # Array[Module]:: A normalized list of modules for the list of
+      #   helpers provided.
+      def _modules_for_helpers(args)
+        args.flatten.map! do |arg|
+          case arg
+          when :all
+            _modules_for_helpers all_application_helpers
+          when String, Symbol
+            file_name = "#{arg.to_s.underscore}_helper"
+            require_dependency(file_name, "Missing helper file helpers/%s.rb")
+            file_name.camelize.constantize
+          when Module
+            arg
+          else
+            raise ArgumentError, "helper must be a String, Symbol, or Module"
           end
-        rescue MissingSourceFile => e
-          raise unless e.is_missing? module_path
-        rescue NameError => e
-          raise unless e.missing_name? module_name
         end
+      end
 
-        def inherited_with_helper(child)
-          inherited_without_helper(child)
-
-          begin
-            child.master_helper_module = Module.new
-            child.master_helper_module.__send__ :include, master_helper_module
-            child.__send__ :default_helper_module!
-          rescue MissingSourceFile => e
-            raise unless e.is_missing?("helpers/#{child.controller_path}_helper")
-          end
-        end
+      def default_helper_module!
+        module_name = name.sub(/Controller$/, '')
+        module_path = module_name.underscore
+        helper module_path
+      rescue MissingSourceFile => e
+        raise e unless e.is_missing? "#{module_path}_helper"
+      rescue NameError => e
+        raise e unless e.missing_name? "#{module_name}Helper"
+      end
 
-        # Extract helper names from files in app/helpers/**/*.rb
-        def all_application_helpers
-          extract = /^#{Regexp.quote(helpers_dir)}\/?(.*)_helper.rb$/
-          Dir["#{helpers_dir}/**/*_helper.rb"].map { |file| file.sub extract, '\1' }
-        end
+      # Extract helper names from files in app/helpers/**/*.rb
+      def all_application_helpers
+        extract = /^#{Regexp.quote(helpers_dir)}\/?(.*)_helper.rb$/
+        Dir["#{helpers_dir}/**/*_helper.rb"].map { |file| file.sub extract, '\1' }
+      end
     end
   end
 end
diff --git a/actionpack/lib/action_controller/base/hide_actions.rb b/actionpack/lib/action_controller/base/hide_actions.rb
new file mode 100644
index 0000000000..af68c772b1
--- /dev/null
+++ b/actionpack/lib/action_controller/base/hide_actions.rb
@@ -0,0 +1,35 @@
+module ActionController
+  # ActionController::HideActions adds the ability to prevent public methods on a controller
+  # to be called as actions.
+  module HideActions
+    extend ActiveSupport::Concern
+
+    included do
+      extlib_inheritable_accessor(:hidden_actions) { Set.new }
+    end
+
+  private
+
+    # Overrides AbstractController::Base#action_method? to return false if the
+    # action name is in the list of hidden actions.
+    def action_method?(action_name)
+      !hidden_actions.include?(action_name) && super
+    end
+
+    module ClassMethods
+      # Sets all of the actions passed in as hidden actions.
+      #
+      # ==== Parameters
+      # *args<#to_s>:: A list of actions
+      def hide_action(*args)
+        hidden_actions.merge(args.map! {|a| a.to_s })
+      end
+
+      # Overrides AbstractController::Base#action_methods to remove any methods
+      # that are listed as hidden methods.
+      def action_methods
+        @action_methods ||= Set.new(super.reject {|name| hidden_actions.include?(name)})
+      end
+    end
+  end
+end
diff --git a/actionpack/lib/action_controller/new_base/http.rb b/actionpack/lib/action_controller/base/http.rb
index c96aaaa865..ec78bc15a8 100644
--- a/actionpack/lib/action_controller/new_base/http.rb
+++ b/actionpack/lib/action_controller/base/http.rb
@@ -2,48 +2,48 @@ require 'action_controller/abstract'
 require 'active_support/core_ext/module/delegation'
 
 module ActionController
+  # ActionController::Http provides a way to get a valid Rack application from a controller.
+  #
+  # In AbstractController, dispatching is triggered directly by calling #process on a new controller.
+  # ActionController::Http provides an #action method that returns a valid Rack application for a
+  # given action. Other rack builders, such as Rack::Builder, Rack::URLMap, and the Rails router,
+  # can dispatch directly to the action returned by FooController.action(:index).
   class Http < AbstractController::Base
     abstract!
 
     # :api: public
     attr_internal :params, :env
 
-    # :api: public
+    # Returns the last part of the controller's name, underscored, without the ending
+    # "Controller". For instance, MyApp::MyPostsController would return "my_posts" for
+    # controller_name
+    #
+    # ==== Returns
+    # String
     def self.controller_name
       @controller_name ||= controller_path.split("/").last
     end
 
-    # :api: public
+    # Delegates to the class' #controller_name
     def controller_name
       self.class.controller_name
     end
 
-    # :api: public
+    # Returns the full controller name, underscored, without the ending Controller.
+    # For instance, MyApp::MyPostsController would return "my_app/my_posts" for
+    # controller_name.
+    #
+    # ==== Returns
+    # String
     def self.controller_path
-      @controller_path ||= self.name.sub(/Controller$/, '').underscore
+      @controller_path ||= name && name.sub(/Controller$/, '').underscore
     end
 
-    # :api: public
+    # Delegates to the class' #controller_path
     def controller_path
       self.class.controller_path
     end
 
-    # :api: private
-    def self.action_names
-      action_methods
-    end
-
-    # :api: private
-    def action_names
-      action_methods
-    end
-
-    # :api: plugin
-    def self.call(env)
-      controller = new
-      controller.call(env).to_rack
-    end
-
     # The details below can be overridden to support a specific
     # Request and Response object. The default ActionController::Base
     # implementation includes RackConvenience, which makes a request
@@ -57,7 +57,7 @@ module ActionController
       super
     end
 
-    # Basic implements for content_type=, location=, and headers are
+    # Basic implementations for content_type=, location=, and headers are
     # provided to reduce the dependency on the RackConvenience module
     # in Renderer and Redirector.
 
@@ -81,6 +81,15 @@ module ActionController
       [status, headers, response_body]
     end
 
+    # Return a rack endpoint for the given action. Memoize the endpoint, so
+    # multiple calls into MyController.action will return the same object
+    # for the same action.
+    #
+    # ==== Parameters
+    # action<#to_s>:: An action name
+    #
+    # ==== Returns
+    # Proc:: A rack application
     def self.action(name)
       @actions ||= {}
       @actions[name.to_s] ||= proc do |env|
diff --git a/actionpack/lib/action_controller/base/http_authentication.rb b/actionpack/lib/action_controller/base/http_authentication.rb
index 680900446c..525787bf92 100644
--- a/actionpack/lib/action_controller/base/http_authentication.rb
+++ b/actionpack/lib/action_controller/base/http_authentication.rb
@@ -185,7 +185,7 @@ module ActionController
         request.env['REDIRECT_X_HTTP_AUTHORIZATION']
       end
 
-      # Raises error unless the request credentials response value matches the expected value.
+      # Returns false unless the request credentials response value matches the expected value.
       # First try the password as a ha1 digest password. If this fails, then try it as a plain
       # text password.
       def validate_digest_response(request, realm, &password_procedure)
@@ -194,6 +194,8 @@ module ActionController
 
         if valid_nonce && realm == credentials[:realm] && opaque == credentials[:opaque]
           password = password_procedure.call(credentials[:username])
+          return false unless password
+
           method = request.env['rack.methodoverride.original_method'] || request.env['REQUEST_METHOD']
 
          [true, false].any? do |password_is_ha1|
diff --git a/actionpack/lib/action_controller/base/layouts.rb b/actionpack/lib/action_controller/base/layouts.rb
new file mode 100644
index 0000000000..365351b421
--- /dev/null
+++ b/actionpack/lib/action_controller/base/layouts.rb
@@ -0,0 +1,192 @@
+module ActionController
+  # Layouts reverse the common pattern of including shared headers and footers in many templates to isolate changes in
+  # repeated setups. The inclusion pattern has pages that look like this:
+  #
+  #   <%= render "shared/header" %>
+  #   Hello World
+  #   <%= render "shared/footer" %>
+  #
+  # This approach is a decent way of keeping common structures isolated from the changing content, but it's verbose
+  # and if you ever want to change the structure of these two includes, you'll have to change all the templates.
+  #
+  # With layouts, you can flip it around and have the common structure know where to insert changing content. This means
+  # that the header and footer are only mentioned in one place, like this:
+  #
+  #   // The header part of this layout
+  #   <%= yield %>
+  #   // The footer part of this layout
+  #
+  # And then you have content pages that look like this:
+  #
+  #    hello world
+  #
+  # At rendering time, the content page is computed and then inserted in the layout, like this:
+  #
+  #   // The header part of this layout
+  #   hello world
+  #   // The footer part of this layout
+  #
+  # == Accessing shared variables
+  #
+  # Layouts have access to variables specified in the content pages and vice versa. This allows you to have layouts with
+  # references that won't materialize before rendering time:
+  #
+  #   <h1><%= @page_title %></h1>
+  #   <%= yield %>
+  #
+  # ...and content pages that fulfill these references _at_ rendering time:
+  #
+  #    <% @page_title = "Welcome" %>
+  #    Off-world colonies offers you a chance to start a new life
+  #
+  # The result after rendering is:
+  #
+  #   <h1>Welcome</h1>
+  #   Off-world colonies offers you a chance to start a new life
+  #
+  # == Layout assignment
+  #
+  # You can either specify a layout declaratively (using the #layout class method) or give
+  # it the same name as your controller, and place it in <tt>app/views/layouts</tt>.
+  # If a subclass does not have a layout specified, it inherits its layout using normal Ruby inheritance.
+  #
+  # For instance, if you have PostsController and a template named <tt>app/views/layouts/posts.html.erb</tt>,
+  # that template will be used for all actions in PostsController and controllers inheriting
+  # from PostsController.
+  #
+  # If you use a module, for instance Weblog::PostsController, you will need a template named
+  # <tt>app/views/layouts/weblog/posts.html.erb</tt>.
+  #
+  # Since all your controllers inherit from ApplicationController, they will use
+  # <tt>app/views/layouts/application.html.erb</tt> if no other layout is specified
+  # or provided.
+  #
+  # == Inheritance Examples
+  #
+  #   class BankController < ActionController::Base
+  #     layout "bank_standard"
+  #
+  #   class InformationController < BankController
+  #
+  #   class TellerController < BankController
+  #     # teller.html.erb exists
+  #
+  #   class TillController < TellerController
+  #
+  #   class VaultController < BankController
+  #     layout :access_level_layout
+  #
+  #   class EmployeeController < BankController
+  #     layout nil
+  #
+  # The InformationController uses "bank_standard" inherited from the BankController, the VaultController overwrites
+  # and picks the layout dynamically, and the EmployeeController doesn't want to use a layout at all.
+  #
+  # The TellerController uses +teller.html.erb+, and TillController inherits that layout and
+  # uses it as well.
+  #
+  # == Types of layouts
+  #
+  # Layouts are basically just regular templates, but the name of this template needs not be specified statically. Sometimes
+  # you want to alternate layouts depending on runtime information, such as whether someone is logged in or not. This can
+  # be done either by specifying a method reference as a symbol or using an inline method (as a proc).
+  #
+  # The method reference is the preferred approach to variable layouts and is used like this:
+  #
+  #   class WeblogController < ActionController::Base
+  #     layout :writers_and_readers
+  #
+  #     def index
+  #       # fetching posts
+  #     end
+  #
+  #     private
+  #       def writers_and_readers
+  #         logged_in? ? "writer_layout" : "reader_layout"
+  #       end
+  #
+  # Now when a new request for the index action is processed, the layout will vary depending on whether the person accessing
+  # is logged in or not.
+  #
+  # If you want to use an inline method, such as a proc, do something like this:
+  #
+  #   class WeblogController < ActionController::Base
+  #     layout proc{ |controller| controller.logged_in? ? "writer_layout" : "reader_layout" }
+  #
+  # Of course, the most common way of specifying a layout is still just as a plain template name:
+  #
+  #   class WeblogController < ActionController::Base
+  #     layout "weblog_standard"
+  #
+  # If no directory is specified for the template name, the template will by default be looked for in <tt>app/views/layouts/</tt>.
+  # Otherwise, it will be looked up relative to the template root.
+  #
+  # == Conditional layouts
+  #
+  # If you have a layout that by default is applied to all the actions of a controller, you still have the option of rendering
+  # a given action or set of actions without a layout, or restricting a layout to only a single action or a set of actions. The
+  # <tt>:only</tt> and <tt>:except</tt> options can be passed to the layout call. For example:
+  #
+  #   class WeblogController < ActionController::Base
+  #     layout "weblog_standard", :except => :rss
+  #
+  #     # ...
+  #
+  #   end
+  #
+  # This will assign "weblog_standard" as the WeblogController's layout  except for the +rss+ action, which will not wrap a layout
+  # around the rendered view.
+  #
+  # Both the <tt>:only</tt> and <tt>:except</tt> condition can accept an arbitrary number of method references, so
+  # #<tt>:except => [ :rss, :text_only ]</tt> is valid, as is <tt>:except => :rss</tt>.
+  #
+  # == Using a different layout in the action render call
+  #
+  # If most of your actions use the same layout, it makes perfect sense to define a controller-wide layout as described above.
+  # Sometimes you'll have exceptions where one action wants to use a different layout than the rest of the controller.
+  # You can do this by passing a <tt>:layout</tt> option to the <tt>render</tt> call. For example:
+  #
+  #   class WeblogController < ActionController::Base
+  #     layout "weblog_standard"
+  #
+  #     def help
+  #       render :action => "help", :layout => "help"
+  #     end
+  #   end
+  #
+  # This will render the help action with the "help" layout instead of the controller-wide "weblog_standard" layout.
+  module Layouts
+    extend ActiveSupport::Concern
+
+    include ActionController::Renderer
+    include AbstractController::Layouts
+
+    module ClassMethods
+      # If no layout is provided, look for a layout with this name.
+      def _implied_layout_name
+        controller_path
+      end
+    end
+
+    private
+      def _determine_template(options)
+        super
+
+        return if (options.key?(:text) || options.key?(:inline) || options.key?(:partial)) && !options.key?(:layout)
+        layout = options.key?(:layout) ? options[:layout] : :default
+        options[:_layout] = _layout_for_option(layout, options[:_template].details)
+      end
+
+      def _layout_for_option(name, details)
+        case name
+        when String     then _layout_for_name(name, details)
+        when true       then _default_layout(details, true)
+        when :default   then _default_layout(details, false)
+        when false, nil then nil
+        else
+          raise ArgumentError,
+            "String, true, or false, expected for `layout'; you passed #{name.inspect}"
+        end
+      end
+  end
+end
diff --git a/actionpack/lib/action_controller/base/mime_responds.rb b/actionpack/lib/action_controller/base/mime_responds.rb
index 3c17dda1a1..ed0d58dba1 100644
--- a/actionpack/lib/action_controller/base/mime_responds.rb
+++ b/actionpack/lib/action_controller/base/mime_responds.rb
@@ -120,12 +120,9 @@ module ActionController #:nodoc:
 
         @responses[mime_type] ||= Proc.new do
           # TODO: Remove this when new base is merged in
-          if defined?(Http)
-            @controller.formats = [mime_type.to_sym]
-          end
-
+          @controller.formats = [mime_type.to_sym]
+          @controller.content_type = mime_type
           @controller.template.formats = [mime_type.to_sym]
-          @response.content_type = mime_type.to_s
 
           block_given? ? block.call : @controller.send(:render, :action => @controller.action_name)
         end
diff --git a/actionpack/lib/action_controller/new_base/rack_convenience.rb b/actionpack/lib/action_controller/base/rack_convenience.rb
index 5dfa7d12f3..805157b0e3 100644
--- a/actionpack/lib/action_controller/new_base/rack_convenience.rb
+++ b/actionpack/lib/action_controller/base/rack_convenience.rb
@@ -3,7 +3,7 @@ module ActionController
     extend ActiveSupport::Concern
 
     included do
-      delegate :headers, :status=, :location=,
+      delegate :headers, :status=, :location=, :content_type=,
                :status, :location, :content_type, :to => "@_response"
       attr_internal :request, :response
     end
diff --git a/actionpack/lib/action_controller/base/redirect.rb b/actionpack/lib/action_controller/base/redirect.rb
deleted file mode 100644
index 7e10f614e2..0000000000
--- a/actionpack/lib/action_controller/base/redirect.rb
+++ /dev/null
@@ -1,89 +0,0 @@
-module ActionController
-  class RedirectBackError < ActionControllerError #:nodoc:
-    DEFAULT_MESSAGE = 'No HTTP_REFERER was set in the request to this action, so redirect_to :back could not be called successfully. If this is a test, make sure to specify request.env["HTTP_REFERER"].'
-
-    def initialize(message = nil)
-      super(message || DEFAULT_MESSAGE)
-    end
-  end
-  
-  module Redirector
-
-    # Redirects the browser to the target specified in +options+. This parameter can take one of three forms:
-    #
-    # * <tt>Hash</tt> - The URL will be generated by calling url_for with the +options+.
-    # * <tt>Record</tt> - The URL will be generated by calling url_for with the +options+, which will reference a named URL for that record.
-    # * <tt>String</tt> starting with <tt>protocol://</tt> (like <tt>http://</tt>) - Is passed straight through as the target for redirection.
-    # * <tt>String</tt> not containing a protocol - The current protocol and host is prepended to the string.
-    # * <tt>:back</tt> - Back to the page that issued the request. Useful for forms that are triggered from multiple places.
-    #   Short-hand for <tt>redirect_to(request.env["HTTP_REFERER"])</tt>
-    #
-    # Examples:
-    #   redirect_to :action => "show", :id => 5
-    #   redirect_to post
-    #   redirect_to "http://www.rubyonrails.org"
-    #   redirect_to "/images/screenshot.jpg"
-    #   redirect_to articles_url
-    #   redirect_to :back
-    #
-    # The redirection happens as a "302 Moved" header unless otherwise specified.
-    #
-    # Examples:
-    #   redirect_to post_url(@post), :status=>:found
-    #   redirect_to :action=>'atom', :status=>:moved_permanently
-    #   redirect_to post_url(@post), :status=>301
-    #   redirect_to :action=>'atom', :status=>302
-    #
-    # When using <tt>redirect_to :back</tt>, if there is no referrer,
-    # RedirectBackError will be raised. You may specify some fallback
-    # behavior for this case by rescuing RedirectBackError.
-    def redirect_to(options = {}, response_status = {}) #:doc:
-      raise ActionControllerError.new("Cannot redirect to nil!") if options.nil?
-
-      if options.is_a?(Hash) && options[:status]
-        status = options.delete(:status)
-      elsif response_status[:status]
-        status = response_status[:status]
-      else
-        status = 302
-      end
-
-      case options
-        # The scheme name consist of a letter followed by any combination of
-        # letters, digits, and the plus ("+"), period ("."), or hyphen ("-")
-        # characters; and is terminated by a colon (":").
-        when %r{^\w[\w\d+.-]*:.*}
-          redirect_to_full_url(options, status)
-        when String
-          redirect_to_full_url(request.protocol + request.host_with_port + options, status)
-        when :back
-          if referer = request.headers["Referer"]
-            redirect_to(referer, :status=>status)
-          else
-            raise RedirectBackError
-          end
-        else
-          redirect_to_full_url(url_for(options), status)
-      end
-    end
-
-    def redirect_to_full_url(url, status)
-      raise DoubleRenderError if performed?
-      logger.info("Redirected to #{url}") if logger && logger.info?
-      response.status = interpret_status(status)
-      response.location = url.gsub(/[\r\n]/, '')
-      response.body = "<html><body>You are being <a href=\"#{CGI.escapeHTML(url)}\">redirected</a>.</body></html>"      
-      @performed_redirect = true
-    end
-    
-    # Clears the redirected results from the headers, resets the status to 200 and returns
-    # the URL that was used to redirect or nil if there was no redirected URL
-    # Note that +redirect_to+ will change the body of the response to indicate a redirection.
-    # The response body is not reset here, see +erase_render_results+
-    def erase_redirect_results #:nodoc:
-      @performed_redirect = false
-      response.status = DEFAULT_RENDER_STATUS_CODE
-      response.headers.delete('Location')
-    end
-  end
-end
\ No newline at end of file
diff --git a/actionpack/lib/action_controller/new_base/redirector.rb b/actionpack/lib/action_controller/base/redirector.rb
index 20060b001f..20060b001f 100644
--- a/actionpack/lib/action_controller/new_base/redirector.rb
+++ b/actionpack/lib/action_controller/base/redirector.rb
diff --git a/actionpack/lib/action_controller/base/render.rb b/actionpack/lib/action_controller/base/render.rb
deleted file mode 100644
index cc0d878e01..0000000000
--- a/actionpack/lib/action_controller/base/render.rb
+++ /dev/null
@@ -1,403 +0,0 @@
-require 'action_controller/abstract/renderer'
-
-module ActionController
-  DEFAULT_RENDER_STATUS_CODE = "200 OK"
-  
-  class DoubleRenderError < ActionControllerError #:nodoc:
-    DEFAULT_MESSAGE = "Render and/or redirect were called multiple times in this action. Please note that you may only call render OR redirect, and at most once per action. Also note that neither redirect nor render terminate execution of the action, so if you want to exit an action after redirecting, you need to do something like \"redirect_to(...) and return\"."
-
-    def initialize(message = nil)
-      super(message || DEFAULT_MESSAGE)
-    end
-  end
-  
-  module Renderer
-    
-    protected
-    # Renders the content that will be returned to the browser as the response body.
-    #
-    # === Rendering an action
-    #
-    # Action rendering is the most common form and the type used automatically by Action Controller when nothing else is
-    # specified. By default, actions are rendered within the current layout (if one exists).
-    #
-    #   # Renders the template for the action "goal" within the current controller
-    #   render :action => "goal"
-    #
-    #   # Renders the template for the action "short_goal" within the current controller,
-    #   # but without the current active layout
-    #   render :action => "short_goal", :layout => false
-    #
-    #   # Renders the template for the action "long_goal" within the current controller,
-    #   # but with a custom layout
-    #   render :action => "long_goal", :layout => "spectacular"
-    #
-    # === Rendering partials
-    #
-    # Partial rendering in a controller is most commonly used together with Ajax calls that only update one or a few elements on a page
-    # without reloading. Rendering of partials from the controller makes it possible to use the same partial template in
-    # both the full-page rendering (by calling it from within the template) and when sub-page updates happen (from the
-    # controller action responding to Ajax calls). By default, the current layout is not used.
-    #
-    #   # Renders the same partial with a local variable.
-    #   render :partial => "person", :locals => { :name => "david" }
-    #
-    #   # Renders the partial, making @new_person available through
-    #   # the local variable 'person'
-    #   render :partial => "person", :object => @new_person
-    #
-    #   # Renders a collection of the same partial by making each element
-    #   # of @winners available through the local variable "person" as it
-    #   # builds the complete response.
-    #   render :partial => "person", :collection => @winners
-    #
-    #   # Renders a collection of partials but with a custom local variable name
-    #   render :partial => "admin_person", :collection => @winners, :as => :person
-    #
-    #   # Renders the same collection of partials, but also renders the
-    #   # person_divider partial between each person partial.
-    #   render :partial => "person", :collection => @winners, :spacer_template => "person_divider"
-    #
-    #   # Renders a collection of partials located in a view subfolder
-    #   # outside of our current controller.  In this example we will be
-    #   # rendering app/views/shared/_note.r(html|xml)  Inside the partial
-    #   # each element of @new_notes is available as the local var "note".
-    #   render :partial => "shared/note", :collection => @new_notes
-    #
-    #   # Renders the partial with a status code of 500 (internal error).
-    #   render :partial => "broken", :status => 500
-    #
-    # Note that the partial filename must also be a valid Ruby variable name,
-    # so e.g. 2005 and register-user are invalid.
-    #
-    #
-    # == Automatic etagging
-    #
-    # Rendering will automatically insert the etag header on 200 OK responses. The etag is calculated using MD5 of the
-    # response body. If a request comes in that has a matching etag, the response will be changed to a 304 Not Modified
-    # and the response body will be set to an empty string. No etag header will be inserted if it's already set.
-    #
-    # === Rendering a template
-    #
-    # Template rendering works just like action rendering except that it takes a path relative to the template root.
-    # The current layout is automatically applied.
-    #
-    #   # Renders the template located in [TEMPLATE_ROOT]/weblog/show.r(html|xml) (in Rails, app/views/weblog/show.erb)
-    #   render :template => "weblog/show"
-    #
-    #   # Renders the template with a local variable
-    #   render :template => "weblog/show", :locals => {:customer => Customer.new}
-    #
-    # === Rendering a file
-    #
-    # File rendering works just like action rendering except that it takes a filesystem path. By default, the path
-    # is assumed to be absolute, and the current layout is not applied.
-    #
-    #   # Renders the template located at the absolute filesystem path
-    #   render :file => "/path/to/some/template.erb"
-    #   render :file => "c:/path/to/some/template.erb"
-    #
-    #   # Renders a template within the current layout, and with a 404 status code
-    #   render :file => "/path/to/some/template.erb", :layout => true, :status => 404
-    #   render :file => "c:/path/to/some/template.erb", :layout => true, :status => 404
-    #
-    # === Rendering text
-    #
-    # Rendering of text is usually used for tests or for rendering prepared content, such as a cache. By default, text
-    # rendering is not done within the active layout.
-    #
-    #   # Renders the clear text "hello world" with status code 200
-    #   render :text => "hello world!"
-    #
-    #   # Renders the clear text "Explosion!"  with status code 500
-    #   render :text => "Explosion!", :status => 500
-    #
-    #   # Renders the clear text "Hi there!" within the current active layout (if one exists)
-    #   render :text => "Hi there!", :layout => true
-    #
-    #   # Renders the clear text "Hi there!" within the layout
-    #   # placed in "app/views/layouts/special.r(html|xml)"
-    #   render :text => "Hi there!", :layout => "special"
-    #
-    # The <tt>:text</tt> option can also accept a Proc object, which can be used to manually control the page generation. This should
-    # generally be avoided, as it violates the separation between code and content, and because almost everything that can be
-    # done with this method can also be done more cleanly using one of the other rendering methods, most notably templates.
-    #
-    #   # Renders "Hello from code!"
-    #   render :text => proc { |response, output| output.write("Hello from code!") }
-    #
-    # === Rendering XML
-    #
-    # Rendering XML sets the content type to application/xml.
-    #
-    #   # Renders '<name>David</name>'
-    #   render :xml => {:name => "David"}.to_xml
-    #
-    # It's not necessary to call <tt>to_xml</tt> on the object you want to render, since <tt>render</tt> will
-    # automatically do that for you:
-    #
-    #   # Also renders '<name>David</name>'
-    #   render :xml => {:name => "David"}
-    #
-    # === Rendering JSON
-    #
-    # Rendering JSON sets the content type to application/json and optionally wraps the JSON in a callback. It is expected
-    # that the response will be parsed (or eval'd) for use as a data structure.
-    #
-    #   # Renders '{"name": "David"}'
-    #   render :json => {:name => "David"}.to_json
-    #
-    # It's not necessary to call <tt>to_json</tt> on the object you want to render, since <tt>render</tt> will
-    # automatically do that for you:
-    #
-    #   # Also renders '{"name": "David"}'
-    #   render :json => {:name => "David"}
-    #
-    # Sometimes the result isn't handled directly by a script (such as when the request comes from a SCRIPT tag),
-    # so the <tt>:callback</tt> option is provided for these cases.
-    #
-    #   # Renders 'show({"name": "David"})'
-    #   render :json => {:name => "David"}.to_json, :callback => 'show'
-    #
-    # === Rendering an inline template
-    #
-    # Rendering of an inline template works as a cross between text and action rendering where the source for the template
-    # is supplied inline, like text, but its interpreted with ERb or Builder, like action. By default, ERb is used for rendering
-    # and the current layout is not used.
-    #
-    #   # Renders "hello, hello, hello, again"
-    #   render :inline => "<%= 'hello, ' * 3 + 'again' %>"
-    #
-    #   # Renders "<p>Good seeing you!</p>" using Builder
-    #   render :inline => "xml.p { 'Good seeing you!' }", :type => :builder
-    #
-    #   # Renders "hello david"
-    #   render :inline => "<%= 'hello ' + name %>", :locals => { :name => "david" }
-    #
-    # === Rendering inline JavaScriptGenerator page updates
-    #
-    # In addition to rendering JavaScriptGenerator page updates with Ajax in RJS templates (see ActionView::Base for details),
-    # you can also pass the <tt>:update</tt> parameter to +render+, along with a block, to render page updates inline.
-    #
-    #   render :update do |page|
-    #     page.replace_html  'user_list', :partial => 'user', :collection => @users
-    #     page.visual_effect :highlight, 'user_list'
-    #   end
-    #
-    # === Rendering vanilla JavaScript
-    #
-    # In addition to using RJS with render :update, you can also just render vanilla JavaScript with :js.
-    #
-    #   # Renders "alert('hello')" and sets the mime type to text/javascript
-    #   render :js => "alert('hello')"
-    #
-    # === Rendering with status and location headers
-    # All renders take the <tt>:status</tt> and <tt>:location</tt> options and turn them into headers. They can even be used together:
-    #
-    #   render :xml => post.to_xml, :status => :created, :location => post_url(post)
-    def render(options = nil, extra_options = {}, &block) #:doc:
-      raise DoubleRenderError, "Can only render or redirect once per action" if performed?
-
-      options = { :layout => true } if options.nil?
-
-      # This handles render "string", render :symbol, and render object
-      # render string and symbol are handled by render_for_name
-      # render object becomes render :partial => object
-      unless options.is_a?(Hash)
-        if options.is_a?(String) || options.is_a?(Symbol)
-          original, options = options, extra_options
-        else
-          extra_options[:partial], options = options, extra_options
-        end
-      end
-      
-      layout_name = options.delete(:layout)
-
-      _process_options(options)
-      
-      if block_given?
-        @template.send(:_evaluate_assigns_and_ivars)
-
-        generator = ActionView::Helpers::PrototypeHelper::JavaScriptGenerator.new(@template, &block)
-        response.content_type = Mime::JS
-        return render_for_text(generator.to_s)
-      end
-      
-      if original
-        return render_for_name(original, layout_name, options) unless block_given?
-      end
-      
-      if options.key?(:text)
-        return render_for_text(@template._render_text(options[:text], 
-          _pick_layout(layout_name), options))
-      end
-
-      file, template = options.values_at(:file, :template)
-      if file || template
-        file = template.sub(/^\//, '') if template
-        return render_for_file(file, [layout_name, !!template], options)
-      end
-      
-      if action_option = options[:action]
-        return render_for_action(action_option, [layout_name, true], options)
-      end
-      
-      if inline = options[:inline]
-        render_for_text(@template._render_inline(inline, _pick_layout(layout_name), options))
-
-      elsif xml = options[:xml]
-        response.content_type ||= Mime::XML
-        render_for_text(xml.respond_to?(:to_xml) ? xml.to_xml : xml)
-
-      elsif js = options[:js]
-        response.content_type ||= Mime::JS
-        render_for_text(js)
-
-      elsif options.include?(:json)
-        json = options[:json]
-        json = ActiveSupport::JSON.encode(json) unless json.respond_to?(:to_str)
-        json = "#{options[:callback]}(#{json})" unless options[:callback].blank?
-        response.content_type ||= Mime::JSON
-        render_for_text(json)
-
-      elsif partial = options[:partial]
-        if partial == true
-          parts = [action_name_base, formats, controller_name, true]
-        elsif partial.is_a?(String)
-          parts = partial_parts(partial, options)
-        else
-          return render_for_text(@template._render_partial(options))
-        end
-        
-        render_for_parts(parts, layout_name, options)
-        
-      elsif options[:nothing]
-        render_for_text(nil)
-
-      else
-        render_for_parts([action_name, formats, controller_path], layout_name, options)
-      end
-    end
-
-    def partial_parts(name, options)
-      segments = name.split("/")
-      parts = segments.pop.split(".")
-
-      case parts.size
-      when 1
-        parts
-      when 2, 3
-        extension = parts.delete_at(1).to_sym
-        if formats.include?(extension)
-          self.formats.replace [extension]
-        end
-        parts.pop if parts.size == 2
-      end
-
-      path = parts.join(".")
-      prefix = segments[0..-1].join("/")
-      prefix = prefix.blank? ? controller_path : prefix
-      parts = [path, formats, prefix]
-      parts.push options[:object] || true
-    end
-
-    def formats
-      @_request.formats.map {|f| f.symbol }.compact
-    end
-
-    def action_name_base(name = action_name)
-      (name.is_a?(String) ? name.sub(/^#{controller_path}\//, '') : name).to_s
-    end
-
-    # Same rules as <tt>render</tt>, but returns a Rack-compatible body
-    # instead of sending the response.
-    def render_to_body(options = nil, &block) #:doc:
-      render(options, &block)
-      response.body
-    ensure
-      response.content_type = nil
-      erase_render_results
-      reset_variables_added_to_assigns
-    end
-
-    def render_to_string(options = {})
-      AbstractController::Renderer.body_to_s(render_to_body(options))
-    end
-
-    # Clears the rendered results, allowing for another render to be performed.
-    def erase_render_results #:nodoc:
-      response.body = []
-      @performed_render = false
-    end
-
-    # Erase both render and redirect results
-    def erase_results #:nodoc:
-      erase_render_results
-      erase_redirect_results
-    end
-    
-    # Return a response that has no content (merely headers). The options
-    # argument is interpreted to be a hash of header names and values.
-    # This allows you to easily return a response that consists only of
-    # significant headers:
-    #
-    #   head :created, :location => person_path(@person)
-    #
-    # It can also be used to return exceptional conditions:
-    #
-    #   return head(:method_not_allowed) unless request.post?
-    #   return head(:bad_request) unless valid_request?
-    #   render
-    def head(*args)
-      if args.length > 2
-        raise ArgumentError, "too many arguments to head"
-      elsif args.empty?
-        raise ArgumentError, "too few arguments to head"
-      end
-      options = args.extract_options!
-      status = interpret_status(args.shift || options.delete(:status) || :ok)
-
-      options.each do |key, value|
-        headers[key.to_s.dasherize.split(/-/).map { |v| v.capitalize }.join("-")] = value.to_s
-      end
-
-      render :nothing => true, :status => status
-    end
-    
-    private
-    def render_for_name(name, layout, options)
-      case name.to_s.index('/')
-      when 0
-        render_for_file(name, layout, options)
-      when nil
-        render_for_action(name, layout, options)
-      else
-        render_for_file(name.sub(/^\//, ''), [layout, true], options)
-      end
-    end
-
-    # ==== Arguments
-    # parts<Array[String, Array[Symbol*], String, Boolean]>::
-    #     Example: ["show", [:html, :xml], "users", false]
-    def render_for_parts(parts, layout_details, options = {})
-      parts[1] = {:formats => parts[1], :locales => [I18n.locale]}
-      
-      tmp = view_paths.find_by_parts(*parts)
-      
-      layout = _pick_layout(*layout_details) unless 
-        self.class.exempt_from_layout.include?(tmp.handler)
-      
-      render_for_text(
-        @template._render_template_with_layout(tmp, layout, options, parts[3]))
-    end
-
-    def render_for_file(file, layout, options)
-      render_for_parts([file, [request.format.to_sym]], layout, options)
-    end
-    
-    def render_for_action(name, layout, options)
-      parts = [action_name_base(name), formats, controller_name]
-      render_for_parts(parts, layout, options)
-    end
-  end
-end
diff --git a/actionpack/lib/action_controller/new_base/render_options.rb b/actionpack/lib/action_controller/base/render_options.rb
index fc9a02626f..fc9a02626f 100644
--- a/actionpack/lib/action_controller/new_base/render_options.rb
+++ b/actionpack/lib/action_controller/base/render_options.rb
diff --git a/actionpack/lib/action_controller/new_base/renderer.rb b/actionpack/lib/action_controller/base/renderer.rb
index 2fab501302..2fab501302 100644
--- a/actionpack/lib/action_controller/new_base/renderer.rb
+++ b/actionpack/lib/action_controller/base/renderer.rb
diff --git a/actionpack/lib/action_controller/base/request_forgery_protection.rb b/actionpack/lib/action_controller/base/request_forgery_protection.rb
index c580280a0c..ad06657f86 100644
--- a/actionpack/lib/action_controller/base/request_forgery_protection.rb
+++ b/actionpack/lib/action_controller/base/request_forgery_protection.rb
@@ -6,20 +6,16 @@ module ActionController #:nodoc:
     extend ActiveSupport::Concern
 
     # TODO : Remove the defined? check when new base is the main base
-    if defined?(ActionController::Http)
-      include AbstractController::Helpers, Session
-    end
+    include AbstractController::Helpers, Session
 
     included do
-      if defined?(ActionController::Http)
-        # Sets the token parameter name for RequestForgery. Calling +protect_from_forgery+
-        # sets it to <tt>:authenticity_token</tt> by default.
-        cattr_accessor :request_forgery_protection_token
+      # Sets the token parameter name for RequestForgery. Calling +protect_from_forgery+
+      # sets it to <tt>:authenticity_token</tt> by default.
+      cattr_accessor :request_forgery_protection_token
 
-        # Controls whether request forgergy protection is turned on or not. Turned off by default only in test mode.
-        class_inheritable_accessor :allow_forgery_protection
-        self.allow_forgery_protection = true
-      end
+      # Controls whether request forgergy protection is turned on or not. Turned off by default only in test mode.
+      class_inheritable_accessor :allow_forgery_protection
+      self.allow_forgery_protection = true
 
       helper_method :form_authenticity_token
       helper_method :protect_against_forgery?
diff --git a/actionpack/lib/action_controller/new_base/rescuable.rb b/actionpack/lib/action_controller/base/rescuable.rb
index 029e643d93..029e643d93 100644
--- a/actionpack/lib/action_controller/new_base/rescuable.rb
+++ b/actionpack/lib/action_controller/base/rescuable.rb
diff --git a/actionpack/lib/action_controller/base/rescue.rb b/actionpack/lib/action_controller/base/rescue.rb
deleted file mode 100644
index 2717a06a37..0000000000
--- a/actionpack/lib/action_controller/base/rescue.rb
+++ /dev/null
@@ -1,50 +0,0 @@
-module ActionController #:nodoc:
-  # Actions that fail to perform as expected throw exceptions. These
-  # exceptions can either be rescued for the public view (with a nice
-  # user-friendly explanation) or for the developers view (with tons of
-  # debugging information). The developers view is already implemented by
-  # the Action Controller, but the public view should be tailored to your
-  # specific application.
-  #
-  # The default behavior for public exceptions is to render a static html
-  # file with the name of the error code thrown.  If no such file exists, an
-  # empty response is sent with the correct status code.
-  #
-  # You can override what constitutes a local request by overriding the
-  # <tt>local_request?</tt> method in your own controller. Custom rescue
-  # behavior is achieved by overriding the <tt>rescue_action_in_public</tt>
-  # and <tt>rescue_action_locally</tt> methods.
-  module Rescue
-    def self.included(base) #:nodoc:
-      base.send :include, ActiveSupport::Rescuable
-      base.extend(ClassMethods)
-
-      base.class_eval do
-        alias_method_chain :perform_action, :rescue
-      end
-    end
-
-    module ClassMethods
-      def rescue_action(env)
-        exception = env.delete('action_dispatch.rescue.exception')
-        request   = ActionDispatch::Request.new(env)
-        response  = ActionDispatch::Response.new
-        new.process(request, response, :rescue_action, exception).to_a
-      end
-    end
-
-    protected
-      # Exception handler called when the performance of an action raises
-      # an exception.
-      def rescue_action(exception)
-        rescue_with_handler(exception) || raise(exception)
-      end
-
-    private
-      def perform_action_with_rescue
-        perform_action_without_rescue
-      rescue Exception => exception
-        rescue_action(exception)
-      end
-  end
-end
diff --git a/actionpack/lib/action_controller/base/responder.rb b/actionpack/lib/action_controller/base/responder.rb
deleted file mode 100644
index 1aee980da6..0000000000
--- a/actionpack/lib/action_controller/base/responder.rb
+++ /dev/null
@@ -1,43 +0,0 @@
-module ActionController
-  module Responder
-    def self.included(klass)
-      klass.extend ClassMethods
-    end
-    
-    private
-    def render_for_text(text) #:nodoc:
-      @performed_render = true
-
-      case text
-      when Proc
-        response.body = text
-      when nil
-        # Safari 2 doesn't pass response headers if the response is zero-length
-        if response.body_parts.empty?
-          response.body_parts << ' '
-        end
-      else
-        response.body_parts << text
-      end
-    end
-    
-    # Returns a set of the methods defined as actions in your controller
-    def action_methods
-      self.class.action_methods
-    end
-    
-    module ClassMethods
-      def action_methods
-        @action_methods ||=
-          # All public instance methods of this class, including ancestors
-          public_instance_methods(true).map { |m| m.to_s }.to_set -
-          # Except for public instance methods of Base and its ancestors
-          Base.public_instance_methods(true).map { |m| m.to_s } +
-          # Be sure to include shadowed public instance methods of this class
-          public_instance_methods(false).map { |m| m.to_s } -
-          # And always exclude explicitly hidden actions
-          hidden_actions
-      end
-    end
-  end
-end
diff --git a/actionpack/lib/action_controller/new_base/session.rb b/actionpack/lib/action_controller/base/session.rb
index bcedd6e1c7..bcedd6e1c7 100644
--- a/actionpack/lib/action_controller/new_base/session.rb
+++ b/actionpack/lib/action_controller/base/session.rb
diff --git a/actionpack/lib/action_controller/base/streaming.rb b/actionpack/lib/action_controller/base/streaming.rb
index 73d4bde6c1..9ff4f25f43 100644
--- a/actionpack/lib/action_controller/base/streaming.rb
+++ b/actionpack/lib/action_controller/base/streaming.rb
@@ -4,10 +4,7 @@ module ActionController #:nodoc:
   module Streaming
     extend ActiveSupport::Concern
 
-    # TODO : Remove the defined? check when new base is the main base
-    if defined?(ActionController::Http)
-      include ActionController::Renderer
-    end
+    include ActionController::Renderer
 
     DEFAULT_SEND_FILE_OPTIONS = {
       :type         => 'application/octet-stream'.freeze,
@@ -162,15 +159,16 @@ module ActionController #:nodoc:
         disposition <<= %(; filename="#{options[:filename]}") if options[:filename]
 
         content_type = options[:type]
+
         if content_type.is_a?(Symbol)
-          raise ArgumentError, "Unknown MIME type #{options[:type]}" unless Mime::EXTENSION_LOOKUP.has_key?(content_type.to_s)
-          content_type = Mime::Type.lookup_by_extension(content_type.to_s)
+          raise ArgumentError, "Unknown MIME type #{options[:type]}" unless Mime::EXTENSION_LOOKUP.key?(content_type.to_s)
+          self.content_type = Mime::Type.lookup_by_extension(content_type.to_s)
+        else
+          self.content_type = content_type
         end
-        content_type = content_type.to_s.strip # fixes a problem with extra '\r' with some browsers
 
         headers.merge!(
-          'Content-Length'            => options[:length],
-          'Content-Type'              => content_type,
+          'Content-Length'            => options[:length].to_s,
           'Content-Disposition'       => disposition,
           'Content-Transfer-Encoding' => 'binary'
         )
diff --git a/actionpack/lib/action_controller/new_base/testing.rb b/actionpack/lib/action_controller/base/testing.rb
index a4a1116d9e..a4a1116d9e 100644
--- a/actionpack/lib/action_controller/new_base/testing.rb
+++ b/actionpack/lib/action_controller/base/testing.rb
diff --git a/actionpack/lib/action_controller/new_base/url_for.rb b/actionpack/lib/action_controller/base/url_for.rb
index 7119c14cd3..7119c14cd3 100644
--- a/actionpack/lib/action_controller/new_base/url_for.rb
+++ b/actionpack/lib/action_controller/base/url_for.rb
diff --git a/actionpack/lib/action_controller/base/verification.rb b/actionpack/lib/action_controller/base/verification.rb
index d87b348ed4..951ae1bee1 100644
--- a/actionpack/lib/action_controller/base/verification.rb
+++ b/actionpack/lib/action_controller/base/verification.rb
@@ -2,10 +2,7 @@ module ActionController #:nodoc:
   module Verification #:nodoc:
     extend ActiveSupport::Concern
 
-    # TODO : Remove the defined? check when new base is the main base
-    if defined?(ActionController::Http)
-      include AbstractController::Callbacks, Session, Flash, Renderer
-    end
+    include AbstractController::Callbacks, Session, Flash, Renderer
 
     # This module provides a class-level method for specifying that certain
     # actions are guarded against being called without certain prerequisites
diff --git a/actionpack/lib/action_controller/caching/actions.rb b/actionpack/lib/action_controller/caching/actions.rb
index 54148b55d8..d8a1662acc 100644
--- a/actionpack/lib/action_controller/caching/actions.rb
+++ b/actionpack/lib/action_controller/caching/actions.rb
@@ -62,14 +62,7 @@ module ActionController #:nodoc:
 
           cache_filter = ActionCacheFilter.new(:layout => options.delete(:layout), :cache_path => options.delete(:cache_path), :store_options => options)
 
-          # TODO: Remove this once new base is swapped in.
-          if defined?(ActionController::Http)
-            around_filter cache_filter, filter_options
-          else
-            around_filter(filter_options) do |controller, action|
-              cache_filter.filter(controller, action)
-            end
-          end
+          around_filter cache_filter, filter_options
         end
       end
 
@@ -91,19 +84,10 @@ module ActionController #:nodoc:
           @options = options
         end
 
-        # TODO: Remove once New Base is merged
-        if defined?(ActionController::Http)
-          def filter(controller)
-            should_continue = before(controller)
-            yield if should_continue
-            after(controller)
-          end
-        else
-          def filter(controller, action)
-            should_continue = before(controller)
-            action.call if should_continue
-            after(controller)
-          end
+        def filter(controller)
+          should_continue = before(controller)
+          yield if should_continue
+          after(controller)
         end
 
         def before(controller)
diff --git a/actionpack/lib/action_controller/base/layout.rb b/actionpack/lib/action_controller/legacy/layout.rb
index cf5f46a32b..3f3d20b95f 100644
--- a/actionpack/lib/action_controller/base/layout.rb
+++ b/actionpack/lib/action_controller/legacy/layout.rb
@@ -1,8 +1,16 @@
 require 'active_support/core_ext/enumerable'
+require 'active_support/core_ext/class'
 require 'active_support/core_ext/class/delegating_attributes'
 require 'active_support/core_ext/class/inheritable_attributes'
 
 module ActionController #:nodoc:
+  # MegasuperultraHAX
+  # plz refactor ActionMailer
+  class Base
+    @@exempt_from_layout = [ActionView::TemplateHandlers::RJS]
+    cattr_accessor :exempt_from_layout
+  end
+
   module Layout #:nodoc:
     def self.included(base)
       base.extend(ClassMethods)
@@ -36,9 +44,6 @@ module ActionController #:nodoc:
     #   hello world
     #   // The footer part of this layout
     #
-    # NOTE: The old notation for rendering the view from a layout was to expose the magic <tt>@content_for_layout</tt> instance
-    # variable. The preferred notation now is to use <tt>yield</tt>, as documented above.
-    #
     # == Accessing shared variables
     #
     # Layouts have access to variables specified in the content pages and vice versa. This allows you to have layouts with
diff --git a/actionpack/lib/action_controller/new_base.rb b/actionpack/lib/action_controller/new_base.rb
deleted file mode 100644
index df256985ac..0000000000
--- a/actionpack/lib/action_controller/new_base.rb
+++ /dev/null
@@ -1,47 +0,0 @@
-module ActionController
-  autoload :Base,                 "action_controller/new_base/base"
-  autoload :ConditionalGet,       "action_controller/new_base/conditional_get"
-  autoload :HideActions,          "action_controller/new_base/hide_actions"
-  autoload :Http,                 "action_controller/new_base/http"
-  autoload :Layouts,              "action_controller/new_base/layouts"
-  autoload :RackConvenience,      "action_controller/new_base/rack_convenience"
-  autoload :Rails2Compatibility,  "action_controller/new_base/compatibility"
-  autoload :Redirector,           "action_controller/new_base/redirector"
-  autoload :Renderer,             "action_controller/new_base/renderer"
-  autoload :RenderOptions,        "action_controller/new_base/render_options"
-  autoload :Renderers,            "action_controller/new_base/render_options"
-  autoload :Rescue,               "action_controller/new_base/rescuable"
-  autoload :Testing,              "action_controller/new_base/testing"
-  autoload :UrlFor,               "action_controller/new_base/url_for"
-  autoload :Session,              "action_controller/new_base/session"
-  autoload :Helpers,              "action_controller/new_base/helpers"
-
-  # Ported modules
-  # require 'action_controller/routing'
-  autoload :Caching,           'action_controller/caching'
-  autoload :Dispatcher,        'action_controller/dispatch/dispatcher'
-  autoload :MimeResponds,      'action_controller/base/mime_responds'
-  autoload :PolymorphicRoutes, 'action_controller/routing/generation/polymorphic_routes'
-  autoload :RecordIdentifier,  'action_controller/record_identifier'
-  autoload :Resources,         'action_controller/routing/resources'
-  autoload :SessionManagement, 'action_controller/base/session_management'
-  autoload :TestCase,          'action_controller/testing/test_case'
-  autoload :UrlRewriter,       'action_controller/routing/generation/url_rewriter'
-  autoload :UrlWriter,         'action_controller/routing/generation/url_rewriter'
-
-  autoload :Verification,             'action_controller/base/verification'
-  autoload :Flash,                    'action_controller/base/chained/flash'
-  autoload :RequestForgeryProtection, 'action_controller/base/request_forgery_protection'
-  autoload :Streaming,                'action_controller/base/streaming'
-  autoload :HttpAuthentication,       'action_controller/base/http_authentication'
-  autoload :FilterParameterLogging,   'action_controller/base/filter_parameter_logging'
-  autoload :Translation,              'action_controller/translation'
-  autoload :Cookies,                  'action_controller/base/cookies'
-
-  require 'action_controller/routing'
-end
-
-autoload :HTML, 'action_controller/vendor/html-scanner'
-
-require 'action_dispatch'
-require 'action_view'
diff --git a/actionpack/lib/action_controller/new_base/base.rb b/actionpack/lib/action_controller/new_base/base.rb
deleted file mode 100644
index d7b65d37fa..0000000000
--- a/actionpack/lib/action_controller/new_base/base.rb
+++ /dev/null
@@ -1,173 +0,0 @@
-module ActionController
-  class Base < Http
-    abstract!
-
-    include AbstractController::Benchmarker
-    include AbstractController::Callbacks
-    include AbstractController::Logger
-
-    include ActionController::Helpers
-    include ActionController::HideActions
-    include ActionController::UrlFor
-    include ActionController::Redirector
-    include ActionController::Renderer
-    include ActionController::Renderers::All
-    include ActionController::Layouts
-    include ActionController::ConditionalGet
-    include ActionController::RackConvenience
-
-    # Legacy modules
-    include SessionManagement
-    include ActionDispatch::StatusCodes
-    include ActionController::Caching
-    include ActionController::MimeResponds
-
-    # Rails 2.x compatibility
-    include ActionController::Rails2Compatibility
-
-    include ActionController::Cookies
-    include ActionController::Session
-    include ActionController::Flash
-    include ActionController::Verification
-    include ActionController::RequestForgeryProtection
-    include ActionController::Streaming
-    include ActionController::HttpAuthentication::Basic::ControllerMethods
-    include ActionController::HttpAuthentication::Digest::ControllerMethods
-    include ActionController::FilterParameterLogging
-    include ActionController::Translation
-
-    # TODO: Extract into its own module
-    # This should be moved together with other normalizing behavior
-    module ImplicitRender
-      def send_action(method_name)
-        ret = super
-        default_render unless performed?
-        ret
-      end
-
-      def default_render
-        render
-      end
-
-      def method_for_action(action_name)
-        super || begin
-          if view_paths.find_by_parts?(action_name.to_s, {:formats => formats, :locales => [I18n.locale]}, controller_path)
-            "default_render"
-          end
-        end
-      end
-    end
-
-    include ImplicitRender
-
-    include ActionController::Rescue
-
-    def self.inherited(klass)
-      ::ActionController::Base.subclasses << klass.to_s
-      super
-    end
-
-    def self.subclasses
-      @subclasses ||= []
-    end
-
-    def self.app_loaded!
-      @subclasses.each do |subclass|
-        subclass.constantize._write_layout_method
-      end
-    end
-
-    def _normalize_options(action = nil, options = {}, &blk)
-      if action.is_a?(Hash)
-        options, action = action, nil
-      elsif action.is_a?(String) || action.is_a?(Symbol)
-        key = case action = action.to_s
-        when %r{^/} then :file
-        when %r{/}  then :template
-        else             :action
-        end
-        options.merge! key => action
-      elsif action
-        options.merge! :partial => action
-      end
-
-      if options.key?(:action) && options[:action].to_s.index("/")
-        options[:template] = options.delete(:action)
-      end
-
-      if options[:status]
-        options[:status] = interpret_status(options[:status]).to_i
-      end
-
-      options[:update] = blk if block_given?
-      options
-    end
-
-    def render(action = nil, options = {}, &blk)
-      options = _normalize_options(action, options, &blk)
-      super(options)
-    end
-
-    def render_to_string(action = nil, options = {}, &blk)
-      options = _normalize_options(action, options, &blk)
-      super(options)
-    end
-
-    # Redirects the browser to the target specified in +options+. This parameter can take one of three forms:
-    #
-    # * <tt>Hash</tt> - The URL will be generated by calling url_for with the +options+.
-    # * <tt>Record</tt> - The URL will be generated by calling url_for with the +options+, which will reference a named URL for that record.
-    # * <tt>String</tt> starting with <tt>protocol://</tt> (like <tt>http://</tt>) - Is passed straight through as the target for redirection.
-    # * <tt>String</tt> not containing a protocol - The current protocol and host is prepended to the string.
-    # * <tt>:back</tt> - Back to the page that issued the request. Useful for forms that are triggered from multiple places.
-    #   Short-hand for <tt>redirect_to(request.env["HTTP_REFERER"])</tt>
-    #
-    # Examples:
-    #   redirect_to :action => "show", :id => 5
-    #   redirect_to post
-    #   redirect_to "http://www.rubyonrails.org"
-    #   redirect_to "/images/screenshot.jpg"
-    #   redirect_to articles_url
-    #   redirect_to :back
-    #
-    # The redirection happens as a "302 Moved" header unless otherwise specified.
-    #
-    # Examples:
-    #   redirect_to post_url(@post), :status=>:found
-    #   redirect_to :action=>'atom', :status=>:moved_permanently
-    #   redirect_to post_url(@post), :status=>301
-    #   redirect_to :action=>'atom', :status=>302
-    #
-    # When using <tt>redirect_to :back</tt>, if there is no referrer,
-    # RedirectBackError will be raised. You may specify some fallback
-    # behavior for this case by rescuing RedirectBackError.
-    def redirect_to(options = {}, response_status = {}) #:doc:
-      raise ActionControllerError.new("Cannot redirect to nil!") if options.nil?
-
-      status = if options.is_a?(Hash) && options.key?(:status)
-        interpret_status(options.delete(:status))
-      elsif response_status.key?(:status)
-        interpret_status(response_status[:status])
-      else
-        302
-      end
-
-      url = case options
-      # The scheme name consist of a letter followed by any combination of
-      # letters, digits, and the plus ("+"), period ("."), or hyphen ("-")
-      # characters; and is terminated by a colon (":").
-      when %r{^\w[\w\d+.-]*:.*}
-        options
-      when String
-        request.protocol + request.host_with_port + options
-      when :back
-        raise RedirectBackError unless refer = request.headers["Referer"]
-        refer
-      else
-        url_for(options)
-      end
-
-      super(url, status)
-    end
-  end
-end
diff --git a/actionpack/lib/action_controller/new_base/helpers.rb b/actionpack/lib/action_controller/new_base/helpers.rb
deleted file mode 100644
index e8000be87b..0000000000
--- a/actionpack/lib/action_controller/new_base/helpers.rb
+++ /dev/null
@@ -1,129 +0,0 @@
-require 'active_support/core_ext/load_error'
-require 'active_support/core_ext/name_error'
-require 'active_support/dependencies'
-
-module ActionController
-  module Helpers
-    extend ActiveSupport::Concern
-
-    include AbstractController::Helpers
-
-    included do
-      # Set the default directory for helpers
-      class_inheritable_accessor :helpers_dir
-      self.helpers_dir = (defined?(RAILS_ROOT) ? "#{RAILS_ROOT}/app/helpers" : "app/helpers")
-    end
-
-    module ClassMethods
-      def inherited(klass)
-        klass.__send__ :default_helper_module!
-        super
-      end
-
-      # The +helper+ class method can take a series of helper module names, a block, or both.
-      #
-      # * <tt>*args</tt>: One or more modules, strings or symbols, or the special symbol <tt>:all</tt>.
-      # * <tt>&block</tt>: A block defining helper methods.
-      #
-      # ==== Examples
-      # When the argument is a string or symbol, the method will provide the "_helper" suffix, require the file
-      # and include the module in the template class.  The second form illustrates how to include custom helpers
-      # when working with namespaced controllers, or other cases where the file containing the helper definition is not
-      # in one of Rails' standard load paths:
-      #   helper :foo             # => requires 'foo_helper' and includes FooHelper
-      #   helper 'resources/foo'  # => requires 'resources/foo_helper' and includes Resources::FooHelper
-      #
-      # When the argument is a module it will be included directly in the template class.
-      #   helper FooHelper # => includes FooHelper
-      #
-      # When the argument is the symbol <tt>:all</tt>, the controller will include all helpers beneath
-      # <tt>ActionController::Base.helpers_dir</tt> (defaults to <tt>app/helpers/**/*.rb</tt> under RAILS_ROOT).
-      #   helper :all
-      #
-      # Additionally, the +helper+ class method can receive and evaluate a block, making the methods defined available
-      # to the template.
-      #   # One line
-      #   helper { def hello() "Hello, world!" end }
-      #   # Multi-line
-      #   helper do
-      #     def foo(bar)
-      #       "#{bar} is the very best"
-      #     end
-      #   end
-      #
-      # Finally, all the above styles can be mixed together, and the +helper+ method can be invoked with a mix of
-      # +symbols+, +strings+, +modules+ and blocks.
-      #   helper(:three, BlindHelper) { def mice() 'mice' end }
-      #
-      def helper(*args, &block)
-        args.flatten.each do |arg|
-          case arg
-          when :all
-            helper all_application_helpers
-          when String, Symbol
-            file_name  = arg.to_s.underscore + '_helper'
-            class_name = file_name.camelize
-
-            begin
-              require_dependency(file_name)
-            rescue LoadError => load_error
-              requiree = / -- (.*?)(\.rb)?$/.match(load_error.message).to_a[1]
-              if requiree == file_name
-                msg = "Missing helper file helpers/#{file_name}.rb"
-                raise LoadError.new(msg).copy_blame!(load_error)
-              else
-                raise
-              end
-            end
-
-            super class_name.constantize
-          else
-            super args
-          end
-        end
-
-        # Evaluate block in template class if given.
-        master_helper_module.module_eval(&block) if block_given?
-      end
-
-      # Declares helper accessors for controller attributes. For example, the
-      # following adds new +name+ and <tt>name=</tt> instance methods to a
-      # controller and makes them available to the view:
-      #   helper_attr :name
-      #   attr_accessor :name
-      def helper_attr(*attrs)
-        attrs.flatten.each { |attr| helper_method(attr, "#{attr}=") }
-      end
-
-      # Provides a proxy to access helpers methods from outside the view.
-      def helpers
-        unless @helper_proxy
-          @helper_proxy = ActionView::Base.new
-          @helper_proxy.extend master_helper_module
-        else
-          @helper_proxy
-        end
-      end
-
-      private
-        def default_helper_module!
-          unless name.blank?
-            module_name = name.sub(/Controller$|$/, 'Helper')
-            module_path = module_name.split('::').map { |m| m.underscore }.join('/')
-            require_dependency module_path
-            helper module_name.constantize
-          end
-        rescue MissingSourceFile => e
-          raise unless e.is_missing? module_path
-        rescue NameError => e
-          raise unless e.missing_name? module_name
-        end
-
-        # Extract helper names from files in app/helpers/**/*.rb
-        def all_application_helpers
-          extract = /^#{Regexp.quote(helpers_dir)}\/?(.*)_helper.rb$/
-          Dir["#{helpers_dir}/**/*_helper.rb"].map { |file| file.sub extract, '\1' }
-        end
-    end
-  end
-end
diff --git a/actionpack/lib/action_controller/new_base/hide_actions.rb b/actionpack/lib/action_controller/new_base/hide_actions.rb
deleted file mode 100644
index b45e520bee..0000000000
--- a/actionpack/lib/action_controller/new_base/hide_actions.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-module ActionController
-  module HideActions
-    extend ActiveSupport::Concern
-
-    included do
-      extlib_inheritable_accessor :hidden_actions
-      self.hidden_actions ||= Set.new
-    end
-
-    def action_methods
-      self.class.action_names
-    end
-
-    def action_names
-      action_methods
-    end
-
-    private
-      def action_method?(action_name)
-        !hidden_actions.include?(action_name) && super
-      end
-
-      module ClassMethods
-        def hide_action(*args)
-          args.each do |arg|
-            self.hidden_actions << arg.to_s
-          end
-        end
-
-        def action_methods
-          @action_names ||= Set.new(super.reject {|name| self.hidden_actions.include?(name.to_s)})
-        end
-
-        def self.action_names
-          action_methods
-        end
-      end
-  end
-end
diff --git a/actionpack/lib/action_controller/new_base/layouts.rb b/actionpack/lib/action_controller/new_base/layouts.rb
deleted file mode 100644
index 0ff71587d6..0000000000
--- a/actionpack/lib/action_controller/new_base/layouts.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-module ActionController
-  module Layouts
-    extend ActiveSupport::Concern
-
-    include ActionController::Renderer
-    include AbstractController::Layouts
-
-    module ClassMethods
-      def _implied_layout_name
-        controller_path
-      end
-    end
-
-    private
-      def _determine_template(options)
-        super
-        if (!options.key?(:text) && !options.key?(:inline) && !options.key?(:partial)) || options.key?(:layout)
-          options[:_layout] = _layout_for_option(options.key?(:layout) ? options[:layout] : :none, options[:_template].details)
-        end
-      end
-
-      def _layout_for_option(name, details)
-        case name
-        when String     then _layout_for_name(name, details)
-        when true       then _default_layout(true, details)
-        when :none      then _default_layout(false, details)
-        when false, nil then nil
-        else
-          raise ArgumentError,
-            "String, true, or false, expected for `layout'; you passed #{name.inspect}"
-        end
-      end
-  end
-end
diff --git a/actionpack/lib/action_controller/old_base.rb b/actionpack/lib/action_controller/old_base.rb
new file mode 100644
index 0000000000..dd22bfd617
--- /dev/null
+++ b/actionpack/lib/action_controller/old_base.rb
@@ -0,0 +1,84 @@
+#--
+# Copyright (c) 2004-2009 David Heinemeier Hansson
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#++
+
+activesupport_path = "#{File.dirname(__FILE__)}/../../activesupport/lib"
+$:.unshift activesupport_path if File.directory?(activesupport_path)
+require 'active_support'
+
+require File.join(File.dirname(__FILE__), "action_pack")
+
+module ActionController
+  # TODO: Review explicit to see if they will automatically be handled by
+  # the initilizer if they are really needed.
+  def self.load_all!
+    [Base, Request, Response, UrlRewriter, UrlWriter]
+    [ActionDispatch::Http::Headers]
+  end
+
+  autoload :Base, 'action_controller/base/base'
+  autoload :Benchmarking, 'action_controller/base/chained/benchmarking'
+  autoload :Caching, 'action_controller/caching'
+  autoload :Cookies, 'action_controller/base/cookies'
+  autoload :Dispatcher, 'action_controller/dispatch/dispatcher'
+  autoload :Filters, 'action_controller/base/chained/filters'
+  autoload :Flash, 'action_controller/base/chained/flash'
+  autoload :Helpers, 'action_controller/base/helpers'
+  autoload :HttpAuthentication, 'action_controller/base/http_authentication'
+  autoload :Integration, 'action_controller/testing/integration'
+  autoload :IntegrationTest, 'action_controller/testing/integration'
+  autoload :Layout, 'action_controller/base/layout'
+  autoload :MimeResponds, 'action_controller/base/mime_responds'
+  autoload :PolymorphicRoutes, 'action_controller/routing/generation/polymorphic_routes'
+  autoload :RecordIdentifier, 'action_controller/record_identifier'
+  autoload :Redirector, 'action_controller/base/redirect'
+  autoload :Renderer, 'action_controller/base/render'
+  autoload :RequestForgeryProtection, 'action_controller/base/request_forgery_protection'
+  autoload :Rescue, 'action_controller/base/rescue'
+  autoload :Resources, 'action_controller/routing/resources'
+  autoload :Responder, 'action_controller/base/responder'
+  autoload :Routing, 'action_controller/routing'
+  autoload :SessionManagement, 'action_controller/base/session_management'
+  autoload :Streaming, 'action_controller/base/streaming'
+  autoload :TestCase, 'action_controller/testing/test_case'
+  autoload :TestProcess, 'action_controller/testing/process'
+  autoload :Translation, 'action_controller/translation'
+  autoload :UrlEncodedPairParser, 'action_controller/dispatch/url_encoded_pair_parser'
+  autoload :UrlRewriter, 'action_controller/routing/generation/url_rewriter'
+  autoload :UrlWriter, 'action_controller/routing/generation/url_rewriter'
+  autoload :Verification, 'action_controller/base/verification'
+  autoload :FilterParameterLogging, 'action_controller/base/filter_parameter_logging'
+
+  module Assertions
+    autoload :DomAssertions, 'action_controller/testing/assertions/dom'
+    autoload :ModelAssertions, 'action_controller/testing/assertions/model'
+    autoload :ResponseAssertions, 'action_controller/testing/assertions/response'
+    autoload :RoutingAssertions, 'action_controller/testing/assertions/routing'
+    autoload :SelectorAssertions, 'action_controller/testing/assertions/selector'
+    autoload :TagAssertions, 'action_controller/testing/assertions/tag'
+  end
+end
+
+autoload :HTML, 'action_controller/vendor/html-scanner'
+
+require 'action_dispatch'
+require 'action_view'
diff --git a/actionpack/lib/action_controller/routing/generation/polymorphic_routes.rb b/actionpack/lib/action_controller/routing/generation/polymorphic_routes.rb
index d9b614c237..c6f7de17bd 100644
--- a/actionpack/lib/action_controller/routing/generation/polymorphic_routes.rb
+++ b/actionpack/lib/action_controller/routing/generation/polymorphic_routes.rb
@@ -112,8 +112,7 @@ module ActionController
     # Returns the path component of a URL for the given record. It uses
     # <tt>polymorphic_url</tt> with <tt>:routing_type => :path</tt>.
     def polymorphic_path(record_or_hash_or_array, options = {})
-      options[:routing_type] = :path
-      polymorphic_url(record_or_hash_or_array, options)
+      polymorphic_url(record_or_hash_or_array, options.merge(:routing_type => :path))
     end
 
     %w(edit new).each do |action|
diff --git a/actionpack/lib/action_controller/routing/resources.rb b/actionpack/lib/action_controller/routing/resources.rb
index 05c782d226..2dee0a3d87 100644
--- a/actionpack/lib/action_controller/routing/resources.rb
+++ b/actionpack/lib/action_controller/routing/resources.rb
@@ -150,9 +150,9 @@ module ActionController
           end
 
           if only
-            @allowed_actions[:only] = Array(only).map(&:to_sym)
+            @allowed_actions[:only] = Array(only).map {|a| a.to_sym }
           elsif except
-            @allowed_actions[:except] = Array(except).map(&:to_sym)
+            @allowed_actions[:except] = Array(except).map {|a| a.to_sym }
           end
         end
 
diff --git a/actionpack/lib/action_controller/routing/route_set.rb b/actionpack/lib/action_controller/routing/route_set.rb
index fb344f6c6b..040a7e2cb6 100644
--- a/actionpack/lib/action_controller/routing/route_set.rb
+++ b/actionpack/lib/action_controller/routing/route_set.rb
@@ -305,6 +305,7 @@ module ActionController
       end
 
       def add_route(path, options = {})
+        options.each { |k, v| options[k] = v.to_s if [:controller, :action].include?(k) && v.is_a?(Symbol) }
         route = builder.build(path, options)
         routes << route
         route
@@ -436,7 +437,7 @@ module ActionController
       def recognize(request)
         params = recognize_path(request.path, extract_request_environment(request))
         request.path_parameters = params.with_indifferent_access
-        "#{params[:controller].camelize}Controller".constantize
+        "#{params[:controller].to_s.camelize}Controller".constantize
       end
 
       def recognize_path(path, environment={})
diff --git a/actionpack/lib/action_controller/routing/routing_ext.rb b/actionpack/lib/action_controller/routing/routing_ext.rb
index 4a82b2af5f..5e5b22b6c2 100644
--- a/actionpack/lib/action_controller/routing/routing_ext.rb
+++ b/actionpack/lib/action_controller/routing/routing_ext.rb
@@ -1,49 +1,4 @@
-class Object
-  def to_param
-    to_s
-  end
-end
-
-class TrueClass
-  def to_param
-    self
-  end
-end
-
-class FalseClass
-  def to_param
-    self
-  end
-end
-
-class NilClass
-  def to_param
-    self
-  end
-end
-
-class Regexp #:nodoc:
-  def number_of_captures
-    Regexp.new("|#{source}").match('').captures.length
-  end
-
-  def multiline?
-    options & MULTILINE == MULTILINE
-  end
-
-  class << self
-    def optionalize(pattern)
-      case unoptionalize(pattern)
-        when /\A(.|\(.*\))\Z/ then "#{pattern}?"
-        else "(?:#{pattern})?"
-      end
-    end
-
-    def unoptionalize(pattern)
-      [/\A\(\?:(.*)\)\?\Z/, /\A(.|\(.*\))\?\Z/].each do |regexp|
-        return $1 if regexp =~ pattern
-      end
-      return pattern
-    end
-  end
-end
+require 'active_support/core_ext/object/conversions'
+require 'active_support/core_ext/boolean/conversions'
+require 'active_support/core_ext/nil/conversions'
+require 'active_support/core_ext/regexp'
diff --git a/actionpack/lib/action_controller/testing/integration.rb b/actionpack/lib/action_controller/testing/integration.rb
index af4ccb7837..5cb0f48f82 100644
--- a/actionpack/lib/action_controller/testing/integration.rb
+++ b/actionpack/lib/action_controller/testing/integration.rb
@@ -1,6 +1,7 @@
 require 'stringio'
 require 'uri'
 require 'active_support/test_case'
+require 'active_support/core_ext/object/metaclass'
 
 require 'rack/mock_session'
 require 'rack/test/cookie_jar'
@@ -191,7 +192,7 @@ module ActionController
 
         unless defined? @named_routes_configured
           # install the named routes in this session instance.
-          klass = class << self; self; end
+          klass = metaclass
           Routing::Routes.install_helpers(klass)
 
           # the helpers are made protected by default--we make them public for
@@ -244,7 +245,7 @@ module ActionController
             path = location.query ? "#{location.path}?#{location.query}" : location.path
           end
 
-          [ControllerCapture, ActionController::ProcessWithTest].each do |mod|
+          [ControllerCapture, ActionController::Testing].each do |mod|
             unless ActionController::Base < mod
               ActionController::Base.class_eval { include mod }
             end
diff --git a/actionpack/lib/action_controller/testing/performance.rb b/actionpack/lib/action_controller/testing/performance_test.rb
index d88180087d..d88180087d 100644
--- a/actionpack/lib/action_controller/testing/performance.rb
+++ b/actionpack/lib/action_controller/testing/performance_test.rb
diff --git a/actionpack/lib/action_controller/testing/process.rb b/actionpack/lib/action_controller/testing/process.rb
index 9647f8ce45..7634290ea1 100644
--- a/actionpack/lib/action_controller/testing/process.rb
+++ b/actionpack/lib/action_controller/testing/process.rb
@@ -56,6 +56,8 @@ module ActionController #:nodoc:
       @block = nil
       @length = 0
       @body = []
+      @charset = nil
+      @content_type = nil
 
       @request = @template = nil
     end
@@ -122,30 +124,24 @@ module ActionController #:nodoc:
 
       @request.recycle!
       @response.recycle!
+      @controller.response_body = nil
+      @controller.formats = nil
+      @controller.params = nil
 
       @html_document = nil
-      @request.request_method = http_method
+      @request.env['REQUEST_METHOD'] = http_method
 
       parameters ||= {}
       @request.assign_parameters(@controller.class.controller_path, action.to_s, parameters)
 
       @request.session = ActionController::TestSession.new(session) unless session.nil?
       @request.session["flash"] = ActionController::Flash::FlashHash.new.update(flash) if flash
-      build_request_uri(action, parameters)
-
-      Base.class_eval { include ProcessWithTest } unless Base < ProcessWithTest
-
-      env = @request.env
-      app = @controller
-
-      # TODO: Enable Lint
-      # app = Rack::Lint.new(app)
 
-      status, headers, body = app.action(action, env)
-      response = Rack::MockResponse.new(status, headers, body)
-
-      @response.request, @response.template = @request, @controller.template
-      @response.status, @response.headers, @response.body = response.status, response.headers, response.body
+      @controller.request = @request
+      @controller.params.merge!(parameters)
+      build_request_uri(action, parameters)
+      Base.class_eval { include Testing }
+      @controller.process_with_new_base_test(@request, @response)
       @response
     end
 
@@ -165,7 +161,7 @@ module ActionController #:nodoc:
         next if ActionController::Base.protected_instance_variables.include?(ivar)
         assigns[ivar[1..-1]] = @controller.instance_variable_get(ivar)
       end
-      
+
       key.nil? ? assigns : assigns[key.to_s]
     end
 
@@ -261,27 +257,4 @@ module ActionController #:nodoc:
       ActionController::Routing.const_set(:Routes, real_routes) if real_routes
     end
   end
-
-  module ProcessWithTest #:nodoc:
-    def self.included(base)
-      base.class_eval {
-        attr_reader :assigns
-        alias_method_chain :process, :test
-      }
-    end
-
-    def process_with_test(*args)
-      process_without_test(*args).tap { set_test_assigns }
-    end
-
-    private
-      def set_test_assigns
-        @assigns = {}
-        (instance_variable_names - self.class.protected_instance_variables).each do |var|
-          name, value = var[1..-1], instance_variable_get(var)
-          @assigns[name] = value
-          @template.assigns[name] = value if response
-        end
-      end
-  end
-end
+end
\ No newline at end of file
diff --git a/actionpack/lib/action_controller/testing/process2.rb b/actionpack/lib/action_controller/testing/process2.rb
deleted file mode 100644
index 1c6fd2d80a..0000000000
--- a/actionpack/lib/action_controller/testing/process2.rb
+++ /dev/null
@@ -1,74 +0,0 @@
-require "action_controller/testing/process"
-
-module ActionController
-  module TestProcess
-    
-    # Executes a request simulating GET HTTP method and set/volley the response
-    def get(action, parameters = nil, session = nil, flash = nil)
-      process(action, parameters, session, flash, "GET")
-    end
-
-    # Executes a request simulating POST HTTP method and set/volley the response
-    def post(action, parameters = nil, session = nil, flash = nil)
-      process(action, parameters, session, flash, "POST")
-    end
-
-    # Executes a request simulating PUT HTTP method and set/volley the response
-    def put(action, parameters = nil, session = nil, flash = nil)
-      process(action, parameters, session, flash, "PUT")
-    end
-
-    # Executes a request simulating DELETE HTTP method and set/volley the response
-    def delete(action, parameters = nil, session = nil, flash = nil)
-      process(action, parameters, session, flash, "DELETE")
-    end
-
-    # Executes a request simulating HEAD HTTP method and set/volley the response
-    def head(action, parameters = nil, session = nil, flash = nil)
-      process(action, parameters, session, flash, "HEAD")
-    end
-
-    def process(action, parameters = nil, session = nil, flash = nil, http_method = 'GET')
-      # Sanity check for required instance variables so we can give an
-      # understandable error message.
-      %w(@controller @request @response).each do |iv_name|
-        if !(instance_variable_names.include?(iv_name) || instance_variable_names.include?(iv_name.to_sym)) || instance_variable_get(iv_name).nil?
-          raise "#{iv_name} is nil: make sure you set it in your test's setup method."
-        end
-      end
-
-      @request.recycle!
-      @response.recycle!
-      @controller.response_body = nil
-      @controller.formats = nil
-      @controller.params = nil
-
-      @html_document = nil
-      @request.env['REQUEST_METHOD'] = http_method
-
-      parameters ||= {}
-      @request.assign_parameters(@controller.class.controller_path, action.to_s, parameters)
-
-      @request.session = ActionController::TestSession.new(session) unless session.nil?
-      @request.session["flash"] = ActionController::Flash::FlashHash.new.update(flash) if flash
-
-      @controller.request = @request
-      @controller.params.merge!(parameters)
-      build_request_uri(action, parameters)
-      # Base.class_eval { include ProcessWithTest } unless Base < ProcessWithTest
-      @controller.process_with_new_base_test(@request, @response)
-      @response
-    end
-    
-    def build_request_uri(action, parameters)
-      unless @request.env['REQUEST_URI']
-        options = @controller.__send__(:rewrite_options, parameters)
-        options.update(:only_path => true, :action => action)
-
-        url = ActionController::UrlRewriter.new(@request, parameters)
-        @request.request_uri = url.rewrite(options)
-      end
-    end      
-      
-  end
-end
\ No newline at end of file
diff --git a/actionpack/lib/action_dispatch/http/mime_type.rb b/actionpack/lib/action_dispatch/http/mime_type.rb
index 25156a4c75..27f27e27fe 100644
--- a/actionpack/lib/action_dispatch/http/mime_type.rb
+++ b/actionpack/lib/action_dispatch/http/mime_type.rb
@@ -2,7 +2,19 @@ require 'set'
 require 'active_support/core_ext/class/attribute_accessors'
 
 module Mime
-  SET              = []
+  class Mimes < Array
+    def symbols
+      @symbols ||= map {|m| m.to_sym }
+    end
+
+    %w(<< concat shift unshift push pop []= clear compact! collect!
+    delete delete_at delete_if flatten! map! insert reject! reverse!
+    replace slice! sort! uniq!).each do |method|
+      define_method(method) {|*args| @symbols = nil; super(*args) }
+    end
+  end
+
+  SET              = Mimes.new
   EXTENSION_LOOKUP = {}
   LOOKUP           = Hash.new { |h, k| h[k] = Type.new(k) unless k.blank? }
 
diff --git a/actionpack/lib/action_dispatch/http/request.rb b/actionpack/lib/action_dispatch/http/request.rb
index 140feb9a68..3f23a5af7a 100755
--- a/actionpack/lib/action_dispatch/http/request.rb
+++ b/actionpack/lib/action_dispatch/http/request.rb
@@ -180,12 +180,10 @@ module ActionDispatch
         else
           accepts.dup
         end.tap do |ret|
-          if defined?(ActionController::Http)
-            if ret == ONLY_ALL
-              ret.replace Mime::SET
-            elsif all = ret.index(Mime::ALL)
-              ret.delete_at(all) && ret.insert(all, *Mime::SET)
-            end
+          if ret == ONLY_ALL
+            ret.replace Mime::SET
+          elsif all = ret.index(Mime::ALL)
+            ret.delete_at(all) && ret.insert(all, *Mime::SET)
           end
         end
       else
diff --git a/actionpack/lib/action_dispatch/http/response.rb b/actionpack/lib/action_dispatch/http/response.rb
index b9db7a4508..e58b4b5e19 100644
--- a/actionpack/lib/action_dispatch/http/response.rb
+++ b/actionpack/lib/action_dispatch/http/response.rb
@@ -67,12 +67,7 @@ module ActionDispatch # :nodoc:
     end
 
     def body=(body)
-      @body =
-        if body.respond_to?(:to_str)
-          [body]
-        else
-          body
-        end
+      @body = body.respond_to?(:to_str) ? [body] : body
     end
 
     def body_parts
@@ -96,36 +91,7 @@ module ActionDispatch # :nodoc:
     # If a character set has been defined for this response (see charset=) then
     # the character set information will also be included in the content type
     # information.
-    def content_type=(mime_type)
-      self.headers["Content-Type"] =
-        if mime_type =~ /charset/ || (c = charset).nil?
-          mime_type.to_s
-        else
-          "#{mime_type}; charset=#{c}"
-        end
-    end
-
-    # Returns the response's content MIME type, or nil if content type has been set.
-    def content_type
-      content_type = String(headers["Content-Type"] || headers["type"]).split(";")[0]
-      content_type.blank? ? nil : content_type
-    end
-
-    # Set the charset of the Content-Type header. Set to nil to remove it.
-    # If no content type is set, it defaults to HTML.
-    def charset=(charset)
-      headers["Content-Type"] =
-        if charset
-          "#{content_type || Mime::HTML}; charset=#{charset}"
-        else
-          content_type || Mime::HTML.to_s
-        end
-    end
-
-    def charset
-      charset = String(headers["Content-Type"] || headers["type"]).split(";")[1]
-      charset.blank? ? nil : charset.strip.split("=")[1]
-    end
+    attr_accessor :charset, :content_type
 
     def last_modified
       if last = headers['Last-Modified']
@@ -162,15 +128,15 @@ module ActionDispatch # :nodoc:
     end
 
     def assign_default_content_type_and_charset!
-      if type = headers['Content-Type'] || headers['type']
-        unless type =~ /charset=/ || sending_file?
-          headers['Content-Type'] = "#{type}; charset=#{default_charset}"
-        end
-      else
-        type = Mime::HTML.to_s
-        type += "; charset=#{default_charset}" unless sending_file?
-        headers['Content-Type'] = type
-      end
+      return if !headers["Content-Type"].blank?
+
+      @content_type ||= Mime::HTML
+      @charset      ||= default_charset
+
+      type = @content_type.to_s.dup
+      type << "; charset=#{@charset}" unless sending_file?
+
+      headers["Content-Type"] = type
     end
 
     def prepare!
diff --git a/actionpack/lib/action_dispatch/middleware/session/mem_cache_store.rb b/actionpack/lib/action_dispatch/middleware/session/mem_cache_store.rb
index 8f448970d9..1d9efc2b36 100644
--- a/actionpack/lib/action_dispatch/middleware/session/mem_cache_store.rb
+++ b/actionpack/lib/action_dispatch/middleware/session/mem_cache_store.rb
@@ -1,3 +1,4 @@
+require "active_support/core_ext/kernel/requires"
 begin
   require_library_or_gem 'memcache'
 
diff --git a/actionpack/lib/action_dispatch/middleware/show_exceptions.rb b/actionpack/lib/action_dispatch/middleware/show_exceptions.rb
index bfff307669..036deec6d2 100644
--- a/actionpack/lib/action_dispatch/middleware/show_exceptions.rb
+++ b/actionpack/lib/action_dispatch/middleware/show_exceptions.rb
@@ -1,3 +1,5 @@
+require "active_support/core_ext/exception"
+
 module ActionDispatch
   class ShowExceptions
     include StatusCodes
diff --git a/actionpack/lib/action_pack/version.rb b/actionpack/lib/action_pack/version.rb
index e0aa2a5f2f..ed0cdf38ee 100644
--- a/actionpack/lib/action_pack/version.rb
+++ b/actionpack/lib/action_pack/version.rb
@@ -1,8 +1,8 @@
 module ActionPack #:nodoc:
   module VERSION #:nodoc:
-    MAJOR = 2
-    MINOR = 3
-    TINY  = 2
+    MAJOR = 3
+    MINOR = 0
+    TINY  = "pre"
 
     STRING = [MAJOR, MINOR, TINY].join('.')
   end
diff --git a/actionpack/lib/action_view.rb b/actionpack/lib/action_view.rb
index 94138097e3..27a06db5bb 100644
--- a/actionpack/lib/action_view.rb
+++ b/actionpack/lib/action_view.rb
@@ -33,21 +33,22 @@ module ActionView
     [Base, InlineTemplate, TemplateError]
   end
 
-  autoload :Base, 'action_view/base'
-  autoload :Helpers, 'action_view/helpers'
-  autoload :InlineTemplate, 'action_view/template/inline'
-  autoload :Partials, 'action_view/render/partials'
-  autoload :Path, 'action_view/template/path'
-  autoload :PathSet, 'action_view/paths'
-  autoload :Rendering, 'action_view/render/rendering'
-  autoload :Renderable, 'action_view/template/renderable'
+  autoload :Base,              'action_view/base'
+  autoload :Helpers,           'action_view/helpers'
+  autoload :InlineTemplate,    'action_view/template/inline'
+  autoload :Partials,          'action_view/render/partials'
+  autoload :Resolver,          'action_view/template/resolver'
+  autoload :PathSet,           'action_view/paths'
+  autoload :Rendering,         'action_view/render/rendering'
+  autoload :Renderable,        'action_view/template/renderable'
   autoload :RenderablePartial, 'action_view/template/partial'
-  autoload :Template, 'action_view/template/template'
-  autoload :TemplateError, 'action_view/template/error'
-  autoload :TemplateHandler, 'action_view/template/handler'
-  autoload :TemplateHandlers, 'action_view/template/handlers'
-  autoload :TextTemplate, 'action_view/template/text'
-  autoload :Helpers, 'action_view/helpers'
+  autoload :Template,          'action_view/template/template'
+  autoload :TemplateError,     'action_view/template/error'
+  autoload :TemplateHandler,   'action_view/template/handler'
+  autoload :TemplateHandlers,  'action_view/template/handlers'
+  autoload :TextTemplate,      'action_view/template/text'
+  autoload :Helpers,           'action_view/helpers'
+  autoload :FileSystemResolverWithFallback, 'action_view/template/resolver'
 end
 
 class ERB
diff --git a/actionpack/lib/action_view/base.rb b/actionpack/lib/action_view/base.rb
index 4ab568b44c..45184f58fb 100644
--- a/actionpack/lib/action_view/base.rb
+++ b/actionpack/lib/action_view/base.rb
@@ -170,12 +170,13 @@ module ActionView #:nodoc:
 
     attr_accessor :base_path, :assigns, :template_extension, :formats
     attr_accessor :controller
+    attr_internal :captures
 
     attr_accessor :output_buffer
 
     class << self
       delegate :erb_trim_mode=, :to => 'ActionView::TemplateHandlers::ERB'
-      delegate :logger, :to => 'ActionController::Base'
+      delegate :logger, :to => 'ActionController::Base', :allow_nil => true
     end
 
     @@debug_rjs = false
@@ -229,38 +230,27 @@ module ActionView #:nodoc:
 
     def initialize(view_paths = [], assigns_for_first_render = {}, controller = nil, formats = nil)#:nodoc:
       @formats = formats || [:html]
-      @assigns = assigns_for_first_render
-      @assigns_added = nil
+      @assigns = assigns_for_first_render.each { |key, value| instance_variable_set("@#{key}", value) }
       @controller = controller
       @helpers = ProxyModule.new(self)
+      @_content_for = Hash.new {|h,k| h[k] = "" }
       self.view_paths = view_paths
-
-      @_first_render = nil
-      @_current_render = nil
     end
 
+    attr_internal :template
     attr_reader :view_paths
 
     def view_paths=(paths)
       @view_paths = self.class.process_view_paths(paths)
     end
 
-    # Access the current template being rendered.
-    # Returns a ActionView::Template object.
-    def template
-      @_current_render
-    end
-
-    def template=(template) #:nodoc:
-      @_first_render ||= template
-      @_current_render = template
-    end
-
     def with_template(current_template)
+      _evaluate_assigns_and_ivars
       last_template, self.template = template, current_template
+      last_formats, self.formats = formats, [current_template.mime_type.to_sym] + Mime::SET.symbols
       yield
     ensure
-      self.template = last_template
+      self.template, self.formats = last_template, last_formats
     end
 
     def punctuate_body!(part)
@@ -271,30 +261,19 @@ module ActionView #:nodoc:
 
     # Evaluates the local assigns and controller ivars, pushes them to the view.
     def _evaluate_assigns_and_ivars #:nodoc:
-      unless @assigns_added
-        @assigns.each { |key, value| instance_variable_set("@#{key}", value) }
-        _copy_ivars_from_controller
-        @assigns_added = true
-      end
+      @assigns_added ||= _copy_ivars_from_controller
     end
 
-    private
+  private
 
-      def _copy_ivars_from_controller #:nodoc:
-        if @controller
-          variables = @controller.instance_variable_names
-          variables -= @controller.protected_instance_variables if @controller.respond_to?(:protected_instance_variables)
-          variables.each { |name| instance_variable_set(name, @controller.instance_variable_get(name)) }
-        end
+    def _copy_ivars_from_controller #:nodoc:
+      if @controller
+        variables = @controller.instance_variable_names
+        variables -= @controller.protected_instance_variables if @controller.respond_to?(:protected_instance_variables)
+        variables.each { |name| instance_variable_set(name, @controller.instance_variable_get(name)) }
       end
+      true
+    end
 
-      def _set_controller_content_type(content_type) #:nodoc:
-        # TODO: Remove this method when new base is switched
-        unless defined?(ActionController::Http)
-          if controller.respond_to?(:response)
-            controller.response.content_type ||= content_type
-          end
-        end
-      end
   end
 end
diff --git a/actionpack/lib/action_view/helpers.rb b/actionpack/lib/action_view/helpers.rb
index 693ab7c2e0..97fa2d80e9 100644
--- a/actionpack/lib/action_view/helpers.rb
+++ b/actionpack/lib/action_view/helpers.rb
@@ -11,7 +11,7 @@ module ActionView #:nodoc:
     autoload :FormHelper, 'action_view/helpers/form_helper'
     autoload :FormOptionsHelper, 'action_view/helpers/form_options_helper'
     autoload :FormTagHelper, 'action_view/helpers/form_tag_helper'
-    autoload :JavascriptHelper, 'action_view/helpers/javascript_helper'
+    autoload :JavaScriptHelper, 'action_view/helpers/javascript_helper'
     autoload :NumberHelper, 'action_view/helpers/number_helper'
     autoload :PrototypeHelper, 'action_view/helpers/prototype_helper'
     autoload :RecordIdentificationHelper, 'action_view/helpers/record_identification_helper'
diff --git a/actionpack/lib/action_view/helpers/active_record_helper.rb b/actionpack/lib/action_view/helpers/active_record_helper.rb
index b4b9f6e34b..75cc651968 100644
--- a/actionpack/lib/action_view/helpers/active_record_helper.rb
+++ b/actionpack/lib/action_view/helpers/active_record_helper.rb
@@ -1,6 +1,8 @@
 require 'cgi'
 require 'action_view/helpers/form_helper'
 require 'active_support/core_ext/class/attribute_accessors'
+require 'active_support/core_ext/enumerable'
+require 'active_support/core_ext/kernel/reporting'
 
 module ActionView
   class Base
@@ -120,9 +122,9 @@ module ActionView
         options.reverse_merge!(:prepend_text => '', :append_text => '', :css_class => 'formError')
 
         if (obj = (object.respond_to?(:errors) ? object : instance_variable_get("@#{object}"))) &&
-          (errors = obj.errors.on(method))
+          (errors = obj.errors[method])
           content_tag("div",
-            "#{options[:prepend_text]}#{ERB::Util.html_escape(errors.is_a?(Array) ? errors.first : errors)}#{options[:append_text]}",
+            "#{options[:prepend_text]}#{ERB::Util.html_escape(errors.first)}#{options[:append_text]}",
             :class => options[:css_class]
           )
         else
@@ -245,59 +247,22 @@ module ActionView
         end
       end
 
-      alias_method :tag_without_error_wrapping, :tag
-      def tag(name, options)
-        if object.respond_to?(:errors) && object.errors.respond_to?(:on)
-          error_wrapping(tag_without_error_wrapping(name, options), object.errors.on(@method_name))
-        else
-          tag_without_error_wrapping(name, options)
-        end
-      end
-
-      alias_method :content_tag_without_error_wrapping, :content_tag
-      def content_tag(name, value, options)
-        if object.respond_to?(:errors) && object.errors.respond_to?(:on)
-          error_wrapping(content_tag_without_error_wrapping(name, value, options), object.errors.on(@method_name))
-        else
-          content_tag_without_error_wrapping(name, value, options)
-        end
-      end
-
-      alias_method :to_date_select_tag_without_error_wrapping, :to_date_select_tag
-      def to_date_select_tag(options = {}, html_options = {})
-        if object.respond_to?(:errors) && object.errors.respond_to?(:on)
-          error_wrapping(to_date_select_tag_without_error_wrapping(options, html_options), object.errors.on(@method_name))
-        else
-          to_date_select_tag_without_error_wrapping(options, html_options)
-        end
-      end
-
-      alias_method :to_datetime_select_tag_without_error_wrapping, :to_datetime_select_tag
-      def to_datetime_select_tag(options = {}, html_options = {})
-        if object.respond_to?(:errors) && object.errors.respond_to?(:on)
-            error_wrapping(to_datetime_select_tag_without_error_wrapping(options, html_options), object.errors.on(@method_name))
-          else
-            to_datetime_select_tag_without_error_wrapping(options, html_options)
+      %w(tag content_tag to_date_select_tag to_datetime_select_tag to_time_select_tag).each do |meth|
+        without = "#{meth}_without_error_wrapping"
+        define_method "#{meth}_with_error_wrapping" do |*args|
+          error_wrapping(send(without, *args))
         end
+        alias_method_chain meth, :error_wrapping
       end
 
-      alias_method :to_time_select_tag_without_error_wrapping, :to_time_select_tag
-      def to_time_select_tag(options = {}, html_options = {})
-        if object.respond_to?(:errors) && object.errors.respond_to?(:on)
-          error_wrapping(to_time_select_tag_without_error_wrapping(options, html_options), object.errors.on(@method_name))
+      def error_wrapping(html_tag)
+        if object.respond_to?(:errors) && object.errors.respond_to?(:full_messages) && object.errors[@method_name].any?
+          Base.field_error_proc.call(html_tag, self)
         else
-          to_time_select_tag_without_error_wrapping(options, html_options)
+          html_tag
         end
       end
 
-      def error_wrapping(html_tag, has_error)
-        has_error ? Base.field_error_proc.call(html_tag, self) : html_tag
-      end
-
-      def error_message
-        object.errors.on(@method_name)
-      end
-
       def column_type
         object.send(:column_for_attribute, @method_name).type
       end
diff --git a/actionpack/lib/action_view/helpers/asset_tag_helper.rb b/actionpack/lib/action_view/helpers/asset_tag_helper.rb
index 63b181509a..898da3c7e4 100644
--- a/actionpack/lib/action_view/helpers/asset_tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/asset_tag_helper.rb
@@ -1,6 +1,7 @@
 require 'cgi'
 require 'action_view/helpers/url_helper'
 require 'action_view/helpers/tag_helper'
+require 'active_support/core_ext/file'
 
 module ActionView
   module Helpers #:nodoc:
@@ -273,17 +274,20 @@ module ActionView
       #   javascript_include_tag :all, :cache => true, :recursive => true
       def javascript_include_tag(*sources)
         options = sources.extract_options!.stringify_keys
-        cache   = options.delete("cache")
+        concat  = options.delete("concat")
+        cache   = concat || options.delete("cache")
         recursive = options.delete("recursive")
 
-        if ActionController::Base.perform_caching && cache
+        if concat || (ActionController::Base.perform_caching && cache)
           joined_javascript_name = (cache == true ? "all" : cache) + ".js"
-          joined_javascript_path = File.join(JAVASCRIPTS_DIR, joined_javascript_name)
+          joined_javascript_path = File.join(joined_javascript_name[/^#{File::SEPARATOR}/] ? ASSETS_DIR : JAVASCRIPTS_DIR, joined_javascript_name)
 
-          write_asset_file_contents(joined_javascript_path, compute_javascript_paths(sources, recursive)) unless File.exists?(joined_javascript_path)
+          unless ActionController::Base.perform_caching && File.exists?(joined_javascript_path)
+            write_asset_file_contents(joined_javascript_path, compute_javascript_paths(sources, recursive))
+          end
           javascript_src_tag(joined_javascript_name, options)
         else
-          expand_javascript_sources(sources, recursive).collect { |source| javascript_src_tag(source, options) }.join("\n")
+          ensure_javascript_sources!(expand_javascript_sources(sources, recursive)).collect { |source| javascript_src_tag(source, options) }.join("\n")
         end
       end
 
@@ -412,19 +416,28 @@ module ActionView
       # The <tt>:recursive</tt> option is also available for caching:
       #
       #   stylesheet_link_tag :all, :cache => true, :recursive => true
+      #
+      # To force concatenation (even in development mode) set <tt>:concat</tt> to true. This is useful if
+      # you have too many stylesheets for IE to load.
+      #
+      #   stylesheet_link_tag :all, :concat => true
+      #
       def stylesheet_link_tag(*sources)
         options = sources.extract_options!.stringify_keys
-        cache   = options.delete("cache")
+        concat  = options.delete("concat")
+        cache   = concat || options.delete("cache")
         recursive = options.delete("recursive")
 
-        if ActionController::Base.perform_caching && cache
+        if concat || (ActionController::Base.perform_caching && cache)
           joined_stylesheet_name = (cache == true ? "all" : cache) + ".css"
-          joined_stylesheet_path = File.join(STYLESHEETS_DIR, joined_stylesheet_name)
+          joined_stylesheet_path = File.join(joined_stylesheet_name[/^#{File::SEPARATOR}/] ? ASSETS_DIR : STYLESHEETS_DIR, joined_stylesheet_name)
 
-          write_asset_file_contents(joined_stylesheet_path, compute_stylesheet_paths(sources, recursive)) unless File.exists?(joined_stylesheet_path)
+          unless ActionController::Base.perform_caching && File.exists?(joined_stylesheet_path)
+            write_asset_file_contents(joined_stylesheet_path, compute_stylesheet_paths(sources, recursive))
+          end
           stylesheet_tag(joined_stylesheet_name, options)
         else
-          expand_stylesheet_sources(sources, recursive).collect { |source| stylesheet_tag(source, options) }.join("\n")
+          ensure_stylesheet_sources!(expand_stylesheet_sources(sources, recursive)).collect { |source| stylesheet_tag(source, options) }.join("\n")
         end
       end
 
@@ -444,6 +457,21 @@ module ActionView
       end
       alias_method :path_to_image, :image_path # aliased to avoid conflicts with an image_path named route
 
+      # Computes the path to a video asset in the public videos directory.
+      # Full paths from the document root will be passed through.
+      # Used internally by +video_tag+ to build the video path.
+      #
+      # ==== Examples
+      #   video_path("hd")                                            # => /videos/hd
+      #   video_path("hd.avi")                                        # => /videos/hd.avi
+      #   video_path("trailers/hd.avi")                               # => /videos/trailers/hd.avi
+      #   video_path("/trailers/hd.avi")                              # => /videos/hd.avi
+      #   video_path("http://www.railsapplication.com/vid/hd.avi") # => http://www.railsapplication.com/vid/hd.avi
+      def video_path(source)
+        compute_public_path(source, 'videos')
+      end
+      alias_method :path_to_video, :video_path # aliased to avoid conflicts with an video_path named route
+
       # Returns an html image tag for the +source+. The +source+ can be a full
       # path or a file that exists in your public images directory.
       #
@@ -480,8 +508,8 @@ module ActionView
       def image_tag(source, options = {})
         options.symbolize_keys!
 
-        options[:src] = path_to_image(source)
-        options[:alt] ||= File.basename(options[:src], '.*').split('.').first.to_s.capitalize
+        src = options[:src] = path_to_image(source)
+        options[:alt]     ||= File.basename(src, '.*').split('.').first.to_s.capitalize
 
         if size = options.delete(:size)
           options[:width], options[:height] = size.split("x") if size =~ %r{^\d+x\d+$}
@@ -489,12 +517,64 @@ module ActionView
 
         if mouseover = options.delete(:mouseover)
           options[:onmouseover] = "this.src='#{image_path(mouseover)}'"
-          options[:onmouseout]  = "this.src='#{image_path(options[:src])}'"
+          options[:onmouseout]  = "this.src='#{src}'"
         end
 
         tag("img", options)
       end
 
+      # Returns an html video tag for the +sources+. If +sources+ is a string,
+      # a single video tag will be returned. If +sources+ is an array, a video
+      # tag with nested source tags for each source will be returned. The
+      # +sources+ can be full paths or files that exists in your public videos
+      # directory.
+      #
+      # ==== Options
+      # You can add HTML attributes using the +options+. The +options+ supports
+      # two additional keys for convenience and conformance:
+      #
+      # * <tt>:poster</tt> - Set an image (like a screenshot) to be shown
+      #   before the video loads. The path is calculated like the +src+ of +image_tag+.
+      # * <tt>:size</tt> - Supplied as "{Width}x{Height}", so "30x45" becomes
+      #   width="30" and height="45". <tt>:size</tt> will be ignored if the
+      #   value is not in the correct format.
+      #
+      # ==== Examples
+      #  video_tag("trailer")  # =>
+      #    <video src="/videos/trailer" />
+      #  video_tag("trailer.ogg")  # =>
+      #    <video src="/videos/trailer.ogg" />
+      #  video_tag("trailer.ogg", :controls => true, :autobuffer => true)  # =>
+      #    <video autobuffer="autobuffer" controls="controls" src="/videos/trailer.ogg" />
+      #  video_tag("trailer.m4v", :size => "16x10", :poster => "screenshot.png")  # =>
+      #    <video src="/videos/trailer.m4v" width="16" height="10" poster="/images/screenshot.png" />
+      #  video_tag("/trailers/hd.avi", :size => "16x16")  # =>
+      #    <video src="/trailers/hd.avi" width="16" height="16" />
+      #  video_tag("/trailers/hd.avi", :height => '32', :width => '32') # =>
+      #    <video height="32" src="/trailers/hd.avi" width="32" />
+      #  video_tag(["trailer.ogg", "trailer.flv"]) # =>
+      #    <video><source src="trailer.ogg" /><source src="trailer.ogg" /><source src="trailer.flv" /></video>
+      #  video_tag(["trailer.ogg", "trailer.flv"] :size => "160x120") # =>
+      #    <video height="120" width="160"><source src="trailer.ogg" /><source src="trailer.flv" /></video>
+      def video_tag(sources, options = {})
+        options.symbolize_keys!
+
+        options[:poster] = path_to_image(options[:poster]) if options[:poster]
+
+        if size = options.delete(:size)
+          options[:width], options[:height] = size.split("x") if size =~ %r{^\d+x\d+$}
+        end
+
+        if sources.is_a?(Array)
+          content_tag("video", options) do
+            sources.map { |source| tag("source", :src => source) }.join
+          end
+        else
+          options[:src] = path_to_video(sources)
+          tag("video", options)
+        end
+      end
+
       def self.cache_asset_timestamps
         @@cache_asset_timestamps
       end
@@ -655,13 +735,28 @@ module ActionView
           end
         end
 
+        def ensure_stylesheet_sources!(sources)
+          sources.each do |source|
+            asset_file_path!(path_to_stylesheet(source))
+          end
+          return sources
+        end
+
+        def ensure_javascript_sources!(sources)
+          sources.each do |source|
+            asset_file_path!(path_to_javascript(source))
+          end
+          return sources
+        end
+
         def join_asset_file_contents(paths)
-          paths.collect { |path| File.read(asset_file_path(path)) }.join("\n\n")
+          paths.collect { |path| File.read(asset_file_path!(path)) }.join("\n\n")
         end
 
         def write_asset_file_contents(joined_asset_path, asset_paths)
+
           FileUtils.mkdir_p(File.dirname(joined_asset_path))
-          File.open(joined_asset_path, "w+") { |cache| cache.write(join_asset_file_contents(asset_paths)) }
+          File.atomic_write(joined_asset_path) { |cache| cache.write(join_asset_file_contents(asset_paths)) }
 
           # Set mtime to the latest of the combined files to allow for
           # consistent ETag without a shared filesystem.
@@ -673,6 +768,14 @@ module ActionView
           File.join(ASSETS_DIR, path.split('?').first)
         end
 
+        def asset_file_path!(path)
+          unless path =~ %r{^[-a-z]+://}
+            absolute_path = asset_file_path(path)
+            raise(Errno::ENOENT, "Asset file not found at '#{absolute_path}'" ) unless File.exist?(absolute_path)
+            return absolute_path
+          end
+        end
+
         def collect_asset_files(*path)
           dir = path.first
 
@@ -682,4 +785,4 @@ module ActionView
         end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/actionpack/lib/action_view/helpers/benchmark_helper.rb b/actionpack/lib/action_view/helpers/benchmark_helper.rb
index 61c2cecb04..c13a069a35 100644
--- a/actionpack/lib/action_view/helpers/benchmark_helper.rb
+++ b/actionpack/lib/action_view/helpers/benchmark_helper.rb
@@ -1,4 +1,4 @@
-require 'benchmark'
+require 'active_support/core_ext/benchmark'
 
 module ActionView
   module Helpers
diff --git a/actionpack/lib/action_view/helpers/capture_helper.rb b/actionpack/lib/action_view/helpers/capture_helper.rb
index b4197479a0..c90acc5ac2 100644
--- a/actionpack/lib/action_view/helpers/capture_helper.rb
+++ b/actionpack/lib/action_view/helpers/capture_helper.rb
@@ -111,15 +111,32 @@ module ActionView
       #
       # WARNING: content_for is ignored in caches. So you shouldn't use it
       # for elements that will be fragment cached.
-      #
-      # The deprecated way of accessing a content_for block is to use an instance variable
-      # named <tt>@content_for_#{name_of_the_content_block}</tt>. The preferred usage is now
-      # <tt><%= yield :footer %></tt>.
       def content_for(name, content = nil, &block)
-        ivar = "@content_for_#{name}"
         content = capture(&block) if block_given?
-        instance_variable_set(ivar, "#{instance_variable_get(ivar)}#{content}")
-        nil
+        return @_content_for[name] << content if content
+        @_content_for[name]
+      end
+
+      # content_for? simply checks whether any content has been captured yet using content_for
+      # Useful to render parts of your layout differently based on what is in your views.
+      # 
+      # ==== Examples
+      #
+      # Perhaps you will use different css in you layout if no content_for :right_column
+      #
+      #   <%# This is the layout %>
+      #   <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+      #   <head>
+      #	    <title>My Website</title>
+      #	    <%= yield :script %>
+      #   </head>
+      #   <body class="<%= content_for?(:right_col) ? 'one-column' : 'two-column' %>">
+      #     <%= yield %>
+      #     <%= yield :right_col %>
+      #   </body>
+      #   </html>
+      def content_for?(name)
+        @_content_for[name].present?
       end
 
       # Use an alternate output buffer for the duration of the block.
diff --git a/actionpack/lib/action_view/helpers/form_helper.rb b/actionpack/lib/action_view/helpers/form_helper.rb
index beef661a37..6d6d623938 100644
--- a/actionpack/lib/action_view/helpers/form_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_helper.rb
@@ -3,6 +3,7 @@ require 'action_view/helpers/date_helper'
 require 'action_view/helpers/tag_helper'
 require 'action_view/helpers/form_tag_helper'
 require 'active_support/core_ext/class/inheritable_attributes'
+require 'active_support/core_ext/hash/slice'
 
 module ActionView
   module Helpers
@@ -494,7 +495,8 @@ module ActionView
       # Returns a label tag tailored for labelling an input field for a specified attribute (identified by +method+) on an object
       # assigned to the template (identified by +object+). The text of label will default to the attribute name unless you specify
       # it explicitly. Additional options on the label tag can be passed as a hash with +options+. These options will be tagged
-      # onto the HTML as an HTML element attribute as in the example shown.
+      # onto the HTML as an HTML element attribute as in the example shown, except for the <tt>:value</tt> option, which is designed to
+      # target labels for radio_button tags (where the value is used in the ID of the input tag).
       #
       # ==== Examples
       #   label(:post, :title)
@@ -506,6 +508,9 @@ module ActionView
       #   label(:post, :title, "A short title", :class => "title_label")
       #   # => <label for="post_title" class="title_label">A short title</label>
       #
+      #   label(:post, :privacy, "Public Post", :value => "public")
+      #   # => <label for="post_privacy_public">Public Post</label>
+      #
       def label(object_name, method, text = nil, options = {})
         InstanceTag.new(object_name, method, self, options.delete(:object)).to_label_tag(text, options)
       end
@@ -728,8 +733,9 @@ module ActionView
 
       def to_label_tag(text = nil, options = {})
         options = options.stringify_keys
+        tag_value = options.delete("value")
         name_and_id = options.dup
-        add_default_name_and_id(name_and_id)
+        add_default_name_and_id_for_value(tag_value, name_and_id)
         options.delete("index")
         options["for"] ||= name_and_id["id"]
         content = (text.blank? ? nil : text.to_s) || method_name.humanize
@@ -761,11 +767,7 @@ module ActionView
           checked = self.class.radio_button_checked?(value(object), tag_value)
         end
         options["checked"]  = "checked" if checked
-        pretty_tag_value    = tag_value.to_s.gsub(/\s/, "_").gsub(/\W/, "").downcase
-        options["id"]     ||= defined?(@auto_index) ?
-          "#{tag_id_with_index(@auto_index)}_#{pretty_tag_value}" :
-          "#{tag_id}_#{pretty_tag_value}"
-        add_default_name_and_id(options)
+        add_default_name_and_id_for_value(tag_value, options)
         tag("input", options)
       end
 
@@ -866,6 +868,17 @@ module ActionView
       end
 
       private
+        def add_default_name_and_id_for_value(tag_value, options)
+          if tag_value
+            pretty_tag_value    = tag_value.to_s.gsub(/\s/, "_").gsub(/\W/, "").downcase
+            specified_id = options["id"]
+            add_default_name_and_id(options)
+            options["id"] += "_#{pretty_tag_value}" unless specified_id
+          else
+            add_default_name_and_id(options)
+          end
+        end
+
         def add_default_name_and_id(options)
           if options.has_key?("index")
             options["name"] ||= tag_name_with_index(options["index"])
@@ -913,6 +926,7 @@ module ActionView
       attr_accessor :object_name, :object, :options
 
       def initialize(object_name, object, template, options, proc)
+        @nested_child_index = {}
         @object_name, @object, @template, @options, @proc = object_name, object, template, options, proc
         @default_options = @options ? @options.slice(:index) : {}
         if @object_name.to_s.match(/\[\]$/)
@@ -1015,7 +1029,7 @@ module ActionView
             explicit_child_index = args.last[:child_index] if args.last.is_a?(Hash)
 
             children.map do |child|
-              fields_for_nested_model("#{name}[#{explicit_child_index || nested_child_index}]", child, args, block)
+              fields_for_nested_model("#{name}[#{explicit_child_index || nested_child_index(name)}]", child, args, block)
             end.join
           else
             fields_for_nested_model(name, explicit_object || association, args, block)
@@ -1033,9 +1047,9 @@ module ActionView
           end
         end
 
-        def nested_child_index
-          @nested_child_index ||= -1
-          @nested_child_index += 1
+        def nested_child_index(name)
+          @nested_child_index[name] ||= -1
+          @nested_child_index[name] += 1
         end
     end
   end
@@ -1043,5 +1057,6 @@ module ActionView
   class << Base
     attr_accessor :default_form_builder
   end
+
   Base.default_form_builder = ::ActionView::Helpers::FormBuilder
 end
diff --git a/actionpack/lib/action_view/helpers/form_tag_helper.rb b/actionpack/lib/action_view/helpers/form_tag_helper.rb
index c96b1fc8d2..e126b35e90 100644
--- a/actionpack/lib/action_view/helpers/form_tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_tag_helper.rb
@@ -1,5 +1,6 @@
 require 'cgi'
 require 'action_view/helpers/tag_helper'
+require 'active_support/core_ext/object/returning'
 
 module ActionView
   module Helpers
@@ -230,6 +231,8 @@ module ActionView
       # * <tt>:rows</tt> - Specify the number of rows in the textarea
       # * <tt>:cols</tt> - Specify the number of columns in the textarea
       # * <tt>:disabled</tt> - If set to true, the user will not be able to use this input.
+      # * <tt>:escape</tt> - By default, the contents of the text input are HTML escaped.
+      #   If you need unescaped contents, set this to false.
       # * Any other key creates standard HTML attributes for the tag.
       #
       # ==== Examples
@@ -257,7 +260,10 @@ module ActionView
           options["cols"], options["rows"] = size.split("x") if size.respond_to?(:split)
         end
 
-        content_tag :textarea, content, { "name" => name, "id" => name }.update(options.stringify_keys)
+        escape = options.key?("escape") ? options.delete("escape") : true
+        content = html_escape(content) if escape
+
+        content_tag :textarea, content, { "name" => name, "id" => sanitize_to_id(name) }.update(options.stringify_keys)
       end
 
       # Creates a check box form input tag.
@@ -445,10 +451,10 @@ module ActionView
               ''
             when /^post$/i, "", nil
               html_options["method"] = "post"
-              protect_against_forgery? ? content_tag(:div, token_tag, :style => 'margin:0;padding:0') : ''
+              protect_against_forgery? ? content_tag(:div, token_tag, :style => 'margin:0;padding:0;display:inline') : ''
             else
               html_options["method"] = "post"
-              content_tag(:div, tag(:input, :type => "hidden", :name => "_method", :value => method) + token_tag, :style => 'margin:0;padding:0')
+              content_tag(:div, tag(:input, :type => "hidden", :name => "_method", :value => method) + token_tag, :style => 'margin:0;padding:0;display:inline')
           end
         end
 
diff --git a/actionpack/lib/action_view/helpers/prototype_helper.rb b/actionpack/lib/action_view/helpers/prototype_helper.rb
index c0f5df3468..624b537ad2 100644
--- a/actionpack/lib/action_view/helpers/prototype_helper.rb
+++ b/actionpack/lib/action_view/helpers/prototype_helper.rb
@@ -1,6 +1,7 @@
 require 'set'
 require 'active_support/json'
 require 'active_support/core_ext/object/extending'
+require 'active_support/core_ext/object/returning'
 
 module ActionView
   module Helpers
@@ -1175,7 +1176,7 @@ module ActionView
 
     class JavaScriptVariableProxy < JavaScriptProxy #:nodoc:
       def initialize(generator, variable)
-        @variable = variable
+        @variable = ::ActiveSupport::JSON::Variable.new(variable)
         @empty    = true # only record lines if we have to.  gets rid of unnecessary linebreaks
         super(generator)
       end
@@ -1186,7 +1187,7 @@ module ActionView
         true
       end
 
-      def rails_to_json(*)
+      def as_json(options = nil)
         @variable
       end
 
diff --git a/actionpack/lib/action_view/helpers/tag_helper.rb b/actionpack/lib/action_view/helpers/tag_helper.rb
index 66d7592874..9b6e9d201f 100644
--- a/actionpack/lib/action_view/helpers/tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/tag_helper.rb
@@ -8,7 +8,8 @@ module ActionView
     module TagHelper
       include ERB::Util
 
-      BOOLEAN_ATTRIBUTES = %w(disabled readonly multiple checked).to_set
+      BOOLEAN_ATTRIBUTES = %w(disabled readonly multiple checked autobuffer
+                           autoplay controls loop).to_set
       BOOLEAN_ATTRIBUTES.merge(BOOLEAN_ATTRIBUTES.map {|attr| attr.to_sym })
 
       # Returns an empty HTML tag of type +name+ which by default is XHTML
diff --git a/actionpack/lib/action_view/helpers/url_helper.rb b/actionpack/lib/action_view/helpers/url_helper.rb
index 3883b80e5a..c5a6d1f084 100644
--- a/actionpack/lib/action_view/helpers/url_helper.rb
+++ b/actionpack/lib/action_view/helpers/url_helper.rb
@@ -1,4 +1,5 @@
 require 'action_view/helpers/javascript_helper'
+require 'active_support/core_ext/hash/keys'
 
 module ActionView
   module Helpers #:nodoc:
@@ -220,9 +221,9 @@ module ActionView
           html_options = args.second
           concat(link_to(capture(&block), options, html_options))
         else
-          name         = args.first
-          options      = args.second || {}
-          html_options = args.third
+          name         = args[0]
+          options      = args[1] || {}
+          html_options = args[2]
 
           url = url_for(options)
 
diff --git a/actionpack/lib/action_view/paths.rb b/actionpack/lib/action_view/paths.rb
index 95c56faf9c..074b475819 100644
--- a/actionpack/lib/action_view/paths.rb
+++ b/actionpack/lib/action_view/paths.rb
@@ -3,7 +3,7 @@ module ActionView #:nodoc:
     def self.type_cast(obj)
       if obj.is_a?(String)
         cache = !defined?(Rails) || !Rails.respond_to?(:configuration) || Rails.configuration.cache_classes
-        Template::FileSystemPathWithFallback.new(obj, :cache => cache)
+        FileSystemResolverWithFallback.new(obj, :cache => cache)
       else
         obj
       end
diff --git a/actionpack/lib/action_view/render/partials.rb b/actionpack/lib/action_view/render/partials.rb
index eacf117bea..a80ffe3c20 100644
--- a/actionpack/lib/action_view/render/partials.rb
+++ b/actionpack/lib/action_view/render/partials.rb
@@ -232,26 +232,7 @@ module ActionView
       ensure
         @_proc_for_layout = nil
       end
-      
-      def _deprecated_ivar_assign(template)
-        if respond_to?(:controller)
-          ivar = :"@#{template.variable_name}"
-          object =
-            if controller.instance_variable_defined?(ivar)
-              ActiveSupport::Deprecation::DeprecatedObjectProxy.new(
-                controller.instance_variable_get(ivar),
-                "#{ivar} will no longer be implicitly assigned to #{template.variable_name}")
-            end
-        end
-      end
 
-      def _render_partial_with_block(layout, block, options)
-        @_proc_for_layout = block
-        concat(_render_partial(options.merge(:partial => layout)))
-      ensure
-        @_proc_for_layout = nil
-      end
-  
       def _render_partial_with_layout(layout, options)
         if layout
           prefix = controller && !layout.include?("/") ? controller.controller_path : nil
@@ -260,18 +241,6 @@ module ActionView
         content = _render_partial(options)
         return _render_content_with_layout(content, layout, options[:locals])
       end
-    
-      def _deprecated_ivar_assign(template)
-        if respond_to?(:controller)
-          ivar = :"@#{template.variable_name}"
-          object =
-            if controller.instance_variable_defined?(ivar)
-              ActiveSupport::Deprecation::DeprecatedObjectProxy.new(
-                controller.instance_variable_get(ivar),
-                "#{ivar} will no longer be implicitly assigned to #{template.variable_name}")
-            end
-        end
-      end
 
       def _array_like_objects
         array_like = [Array]
@@ -297,8 +266,6 @@ module ActionView
       end
 
       def _set_locals(object, locals, template, options)
-        object ||= _deprecated_ivar_assign(template)
-        
         locals[:object] = locals[template.variable_name] = object
         locals[options[:as]] = object if options[:as]
       end
diff --git a/actionpack/lib/action_view/render/rendering.rb b/actionpack/lib/action_view/render/rendering.rb
index fe785e7b20..162e38c484 100644
--- a/actionpack/lib/action_view/render/rendering.rb
+++ b/actionpack/lib/action_view/render/rendering.rb
@@ -51,32 +51,60 @@ module ActionView
       end
   
       begin
-        original_content_for_layout = @content_for_layout if defined?(@content_for_layout)
-        @content_for_layout = content
+        old_content, @_content_for[:layout] = @_content_for[:layout], content
 
-        @cached_content_for_layout = @content_for_layout
+        @cached_content_for_layout = @_content_for[:layout]
         _render_template(layout, locals)
       ensure
-        @content_for_layout = original_content_for_layout
+        @_content_for[:layout] = old_content
       end
     end
 
+    # You can think of a layout as a method that is called with a block. This method
+    # returns the block that the layout is called with. If the user calls yield :some_name,
+    # the block, by default, returns content_for(:some_name). If the user calls yield,
+    # the default block returns content_for(:layout).
+    #
+    # The user can override this default by passing a block to the layout.
+    #
+    # ==== Example
+    #
+    #   # The template
+    #   <% render :layout => "my_layout" do %>Content<% end %>
+    #
+    #   # The layout
+    #   <html><% yield %></html>
+    #
+    # In this case, instead of the default block, which would return content_for(:layout),
+    # this method returns the block that was passed in to render layout, and the response
+    # would be <html>Content</html>.
+    #
+    # Finally, the block can take block arguments, which can be passed in by yield.
+    #
+    # ==== Example
+    #
+    #   # The template
+    #   <% render :layout => "my_layout" do |customer| %>Hello <%= customer.name %><% end %>
+    #
+    #   # The layout
+    #   <html><% yield Struct.new(:name).new("David") %></html>
+    #
+    # In this case, the layout would receive the block passed into <tt>render :layout</tt>,
+    # and the Struct specified in the layout would be passed into the block. The result
+    # would be <html>Hello David</html>.
+    def layout_proc(name)
+      @_default_layout ||= proc { |*names| @_content_for[names.first || :layout] }
+      !@_content_for.key?(name) && @_proc_for_layout || @_default_layout
+    end
+
     def _render_template(template, local_assigns = {})
       with_template(template) do
-        _evaluate_assigns_and_ivars
-        _set_controller_content_type(template.mime_type) if template.respond_to?(:mime_type)
-
         template.render(self, local_assigns) do |*names|
-          if !instance_variable_defined?(:"@content_for_#{names.first}") && 
-          instance_variable_defined?(:@_proc_for_layout) && (proc = @_proc_for_layout)
-            capture(*names, &proc)
-          elsif instance_variable_defined?(ivar = :"@content_for_#{names.first || :layout}")
-            instance_variable_get(ivar)
-          end        
+          capture(*names, &layout_proc(names.first))
         end
       end
     rescue Exception => e
-      if TemplateError === e
+      if e.is_a?(TemplateError)
         e.sub_template_of(template)
         raise e
       else
@@ -101,20 +129,18 @@ module ActionView
     end
 
     def _render_template_with_layout(template, layout = nil, options = {}, partial = false)
-      if controller && logger
-        logger.info("Rendering #{template.identifier}" + 
-          (options[:status] ? " (#{options[:status]})" : ''))
-      end
-  
+      logger && logger.info("Rendering #{template.identifier}#{' (#{options[:status]})' if options[:status]}")
+
+      locals = options[:locals] || {}
+
       content = if partial
         object = partial unless partial == true
         _render_partial_object(template, options, object)
       else
-        _render_template(template, options[:locals] || {})
+        _render_template(template, locals)
       end
   
-      return content unless layout
-      _render_content_with_layout(content, layout, options[:locals] || {})
+      layout ? _render_content_with_layout(content, layout, locals) : content
     end
   end
 end
\ No newline at end of file
diff --git a/actionpack/lib/action_view/template/error.rb b/actionpack/lib/action_view/template/error.rb
index a06e80b294..6e5093c5bd 100644
--- a/actionpack/lib/action_view/template/error.rb
+++ b/actionpack/lib/action_view/template/error.rb
@@ -1,3 +1,5 @@
+require "active_support/core_ext/enumerable"
+
 module ActionView
   # The TemplateError exception is raised when the compilation of the template fails. This exception then gathers a
   # bunch of intimate details and uses it to report a very precise exception message.
diff --git a/actionpack/lib/action_view/template/handlers/builder.rb b/actionpack/lib/action_view/template/handlers/builder.rb
index f412228752..5f381f7bf0 100644
--- a/actionpack/lib/action_view/template/handlers/builder.rb
+++ b/actionpack/lib/action_view/template/handlers/builder.rb
@@ -1,5 +1,3 @@
-require 'builder'
-
 module ActionView
   module TemplateHandlers
     class Builder < TemplateHandler
@@ -8,8 +6,8 @@ module ActionView
       self.default_format = Mime::XML
 
       def compile(template)
-        "_set_controller_content_type(Mime::XML);" +
-          "xml = ::Builder::XmlMarkup.new(:indent => 2);" +
+        require 'builder'
+        "xml = ::Builder::XmlMarkup.new(:indent => 2);" +
           "self.output_buffer = xml.target!;" +
           template.source +
           ";xml.target!;"
diff --git a/actionpack/lib/action_view/template/handlers/erb.rb b/actionpack/lib/action_view/template/handlers/erb.rb
index d773df7d29..aab7baf442 100644
--- a/actionpack/lib/action_view/template/handlers/erb.rb
+++ b/actionpack/lib/action_view/template/handlers/erb.rb
@@ -1,4 +1,3 @@
-require 'erb'
 require 'active_support/core_ext/class/attribute_accessors'
 
 module ActionView
@@ -16,7 +15,11 @@ module ActionView
       self.default_format = Mime::HTML
 
       def compile(template)
-        ::ERB.new("<% __in_erb_template=true %>#{template.source}", nil, erb_trim_mode, '@output_buffer').src
+        require 'erb'
+
+        magic = $1 if template.source =~ /\A(<%#.*coding[:=]\s*(\S+)\s*-?%>)/
+        erb = "#{magic}<% __in_erb_template=true %>#{template.source}"
+        ::ERB.new(erb, nil, erb_trim_mode, '@output_buffer').src
       end
     end
   end
diff --git a/actionpack/lib/action_view/template/handlers/rjs.rb b/actionpack/lib/action_view/template/handlers/rjs.rb
index a36744c2b7..b1d15dc209 100644
--- a/actionpack/lib/action_view/template/handlers/rjs.rb
+++ b/actionpack/lib/action_view/template/handlers/rjs.rb
@@ -6,7 +6,6 @@ module ActionView
       self.default_format = Mime::JS
 
       def compile(template)
-        "@formats = [:html];" +
         "controller.response.content_type ||= Mime::JS;" +
           "update_page do |page|;#{template.source}\nend"
       end
diff --git a/actionpack/lib/action_view/template/path.rb b/actionpack/lib/action_view/template/path.rb
deleted file mode 100644
index 6f8d7a9c74..0000000000
--- a/actionpack/lib/action_view/template/path.rb
+++ /dev/null
@@ -1,152 +0,0 @@
-require "pathname"
-
-module ActionView
-  class Template
-  # Abstract super class
-    class Path
-      def initialize(options)
-        @cache  = options[:cache]
-        @cached = {}
-      end
-    
-      # Normalizes the arguments and passes it on to find_template
-      def find_by_parts(*args)
-        find_all_by_parts(*args).first
-      end
-      
-      def find_all_by_parts(name, details = {}, prefix = nil, partial = nil)
-        details[:locales] = [I18n.locale]
-        name = name.to_s.gsub(handler_matcher, '').split("/")
-        find_templates(name.pop, details, [prefix, *name].compact.join("/"), partial)
-      end
-    
-    private
-      
-      # This is what child classes implement. No defaults are needed
-      # because Path guarantees that the arguments are present and
-      # normalized.
-      def find_templates(name, details, prefix, partial)
-        raise NotImplementedError
-      end
-      
-      def valid_handlers
-        @valid_handlers ||= TemplateHandlers.extensions
-      end
-      
-      def handler_matcher
-        @handler_matcher ||= begin
-          e = valid_handlers.join('|')
-          /\.(?:#{e})$/
-        end
-      end
-       
-      def handler_glob
-        e = TemplateHandlers.extensions.map{|h| ".#{h},"}.join
-        "{#{e}}"
-      end
-      
-      def formats_glob
-        @formats_glob ||= begin
-          formats = Mime::SET.map { |m| m.symbol }
-          '{' + formats.map { |l| ".#{l}," }.join + '}'
-        end
-      end
-      
-      def cached(key)
-        return yield unless @cache
-        return @cached[key] if @cached.key?(key)
-        @cached[key] = yield
-      end
-    end
-  
-    class FileSystemPath < Path
-    
-      def initialize(path, options = {})
-        raise ArgumentError, "path already is a Path class" if path.is_a?(Path)
-        super(options)
-        @path = Pathname.new(path).expand_path
-      end
-
-      # TODO: This is the currently needed API. Make this suck less
-      # ==== <suck>
-      attr_reader :path
-    
-      def to_s
-        path.to_s
-      end
-
-      def to_str
-        path.to_s
-      end
-
-      def ==(path)
-        to_str == path.to_str
-      end
-
-      def eql?(path)
-        to_str == path.to_str
-      end
-      # ==== </suck>
-    
-      def find_templates(name, details, prefix, partial, root = "#{@path}/")
-        if glob = details_to_glob(name, details, prefix, partial, root)
-          cached(glob) do
-            Dir[glob].map do |path|
-              next if File.directory?(path)
-              source = File.read(path)
-              identifier = Pathname.new(path).expand_path.to_s
-              
-              Template.new(source, identifier, *path_to_details(path))
-            end.compact
-          end
-        end
-      end
-    
-    private
-  
-      # :api: plugin
-      def details_to_glob(name, details, prefix, partial, root)
-        path = ""
-        path << "#{prefix}/" unless prefix.empty?
-        path << (partial ? "_#{name}" : name)
-      
-        extensions = ""
-        [:locales, :formats].each do |k|
-          extensions << if exts = details[k]
-            '{' + exts.map {|e| ".#{e},"}.join + '}'
-          else
-            k == :formats ? formats_glob : ''
-          end
-        end
-        
-        "#{root}#{path}#{extensions}#{handler_glob}"
-      end
-      
-      # TODO: fix me
-      # :api: plugin
-      def path_to_details(path)
-        # [:erb, :format => :html, :locale => :en, :partial => true/false]
-        if m = path.match(%r'/(_)?[\w-]+(\.[\w-]+)*\.(\w+)$')
-          partial = m[1] == '_'
-          details = (m[2]||"").split('.').reject { |e| e.empty? }
-          handler = Template.handler_class_for_extension(m[3])
-
-          format  = Mime[details.last] && details.pop.to_sym
-          locale  = details.last && details.pop.to_sym
-          
-          return handler, :format => format, :locale => locale, :partial => partial
-        end
-      end
-    end
-
-    class FileSystemPathWithFallback < FileSystemPath
-      
-      def find_templates(name, details, prefix, partial)
-        templates = super
-        return super(name, details, prefix, partial, '') if templates.empty?
-        templates
-      end
-      
-    end
-  end
-end
diff --git a/actionpack/lib/action_view/template/resolver.rb b/actionpack/lib/action_view/template/resolver.rb
new file mode 100644
index 0000000000..d15f53a11b
--- /dev/null
+++ b/actionpack/lib/action_view/template/resolver.rb
@@ -0,0 +1,150 @@
+require "pathname"
+require "action_view/template/template"
+
+module ActionView
+  # Abstract superclass
+  class Resolver
+    def initialize(options)
+      @cache  = options[:cache]
+      @cached = {}
+    end
+
+    # Normalizes the arguments and passes it on to find_template
+    def find_by_parts(*args)
+      find_all_by_parts(*args).first
+    end
+    
+    def find_all_by_parts(name, details = {}, prefix = nil, partial = nil)
+      details[:locales] = [I18n.locale]
+      name = name.to_s.gsub(handler_matcher, '').split("/")
+      find_templates(name.pop, details, [prefix, *name].compact.join("/"), partial)
+    end
+  
+  private
+
+    # This is what child classes implement. No defaults are needed
+    # because Resolver guarantees that the arguments are present and
+    # normalized.
+    def find_templates(name, details, prefix, partial)
+      raise NotImplementedError
+    end
+    
+    def valid_handlers
+      @valid_handlers ||= TemplateHandlers.extensions
+    end
+
+    def handler_matcher
+      @handler_matcher ||= begin
+        e = valid_handlers.join('|')
+        /\.(?:#{e})$/
+      end
+    end
+
+    def handler_glob
+      e = TemplateHandlers.extensions.map{|h| ".#{h},"}.join
+      "{#{e}}"
+    end
+    
+    def formats_glob
+      @formats_glob ||= begin
+        '{' + Mime::SET.symbols.map { |l| ".#{l}," }.join + '}'
+      end
+    end
+
+    def cached(key)
+      return yield unless @cache
+      return @cached[key] if @cached.key?(key)
+      @cached[key] = yield
+    end
+  end
+
+  class FileSystemResolver < Resolver
+
+    def initialize(path, options = {})
+      raise ArgumentError, "path already is a Resolver class" if path.is_a?(Resolver)
+      super(options)
+      @path = Pathname.new(path).expand_path
+    end
+
+    # TODO: This is the currently needed API. Make this suck less
+    # ==== <suck>
+    attr_reader :path
+
+    def to_s
+      path.to_s
+    end
+
+    def to_str
+      path.to_s
+    end
+
+    def ==(path)
+      to_str == path.to_str
+    end
+
+    def eql?(path)
+      to_str == path.to_str
+    end
+    # ==== </suck>
+
+    def find_templates(name, details, prefix, partial, root = "#{@path}/")
+      if glob = details_to_glob(name, details, prefix, partial, root)
+        cached(glob) do
+          Dir[glob].map do |path|
+            next if File.directory?(path)
+            source = File.read(path)
+            identifier = Pathname.new(path).expand_path.to_s
+
+            Template.new(source, identifier, *path_to_details(path))
+          end.compact
+        end
+      end
+    end
+  
+  private
+
+    # :api: plugin
+    def details_to_glob(name, details, prefix, partial, root)
+      path = ""
+      path << "#{prefix}/" unless prefix.empty?
+      path << (partial ? "_#{name}" : name)
+
+      extensions = ""
+      [:locales, :formats].each do |k|
+        extensions << if exts = details[k]
+          '{' + exts.map {|e| ".#{e},"}.join + '}'
+        else
+          k == :formats ? formats_glob : ''
+        end
+      end
+      
+      "#{root}#{path}#{extensions}#{handler_glob}"
+    end
+
+    # TODO: fix me
+    # :api: plugin
+    def path_to_details(path)
+      # [:erb, :format => :html, :locale => :en, :partial => true/false]
+      if m = path.match(%r'/(_)?[\w-]+(\.[\w-]+)*\.(\w+)$')
+        partial = m[1] == '_'
+        details = (m[2]||"").split('.').reject { |e| e.empty? }
+        handler = Template.handler_class_for_extension(m[3])
+
+        format  = Mime[details.last] && details.pop.to_sym
+        locale  = details.last && details.pop.to_sym
+
+        return handler, :format => format, :locale => locale, :partial => partial
+      end
+    end
+  end
+
+  class FileSystemResolverWithFallback < FileSystemResolver
+
+    def find_templates(name, details, prefix, partial)
+      templates = super
+      return super(name, details, prefix, partial, '') if templates.empty?
+      templates
+    end
+
+  end
+end
\ No newline at end of file
diff --git a/actionpack/lib/action_view/template/template.rb b/actionpack/lib/action_view/template/template.rb
index a9897258d2..fac50cd692 100644
--- a/actionpack/lib/action_view/template/template.rb
+++ b/actionpack/lib/action_view/template/template.rb
@@ -2,7 +2,7 @@
 # This is so that templates compiled in this file are UTF-8
 
 require 'set'
-require "action_view/template/path"
+require "action_view/template/resolver"
 
 module ActionView
   class Template
@@ -20,7 +20,7 @@ module ActionView
         handler.respond_to?(:default_format) ? handler.default_format.to_sym.to_s : "html"
       end
       @mime_type = Mime::Type.lookup_by_extension(format.to_s)
-      @details[:formats] = Array.wrap(format && format.to_sym)
+      @details[:formats] = Array.wrap(format.to_sym)
     end
     
     def render(view, locals, &blk)
@@ -53,7 +53,11 @@ module ActionView
       locals_code = locals.keys.map! { |key| "#{key} = local_assigns[:#{key}];" }.join
 
       code = @handler.call(self)
-      encoding_comment = $1 if code.sub!(/\A(#.*coding.*)\n/, '')
+      if code.sub!(/\A(#.*coding.*)\n/, '')
+        encoding_comment = $1
+      elsif defined?(Encoding) && Encoding.respond_to?(:default_external)
+        encoding_comment = "#coding:#{Encoding.default_external}"
+      end
 
       source = <<-end_src
         def #{method_name}(local_assigns)
diff --git a/actionpack/lib/action_view/template/text.rb b/actionpack/lib/action_view/template/text.rb
index fd57b1677e..81944ff546 100644
--- a/actionpack/lib/action_view/template/text.rb
+++ b/actionpack/lib/action_view/template/text.rb
@@ -3,7 +3,7 @@ module ActionView #:nodoc:
 
     def initialize(string, content_type = Mime[:html])
       super(string.to_s)
-      @content_type = Mime[content_type]
+      @content_type = Mime[content_type] || content_type
     end
 
     def details
diff --git a/actionpack/test/abstract_controller/abstract_controller_test.rb b/actionpack/test/abstract_controller/abstract_controller_test.rb
index 9c028e7d1e..56ec6a6a31 100644
--- a/actionpack/test/abstract_controller/abstract_controller_test.rb
+++ b/actionpack/test/abstract_controller/abstract_controller_test.rb
@@ -19,7 +19,7 @@ module AbstractController
     
     class TestBasic < ActiveSupport::TestCase
       test "dispatching works" do
-        result = Me.process(:index)
+        result = Me.new.process(:index)
         assert_equal "Hello world", result.response_body
       end
     end
@@ -68,27 +68,27 @@ module AbstractController
     
     class TestRenderer < ActiveSupport::TestCase
       test "rendering templates works" do
-        result = Me2.process(:index)
+        result = Me2.new.process(:index)
         assert_equal "Hello from index.erb", result.response_body
       end
       
       test "rendering passes ivars to the view" do
-        result = Me2.process(:action_with_ivars)
+        result = Me2.new.process(:action_with_ivars)
         assert_equal "Hello from index_with_ivars.erb", result.response_body
       end
       
       test "rendering with no template name" do
-        result = Me2.process(:naked_render)
+        result = Me2.new.process(:naked_render)
         assert_equal "Hello from naked_render.erb", result.response_body
       end
 
       test "rendering to a rack body" do
-        result = Me2.process(:rendering_to_body)
+        result = Me2.new.process(:rendering_to_body)
         assert_equal "Hello from naked_render.erb", result.response_body
       end
 
       test "rendering to a string" do
-        result = Me2.process(:rendering_to_string)
+        result = Me2.new.process(:rendering_to_string)
         assert_equal "Hello from naked_render.erb", result.response_body
       end
     end
@@ -120,12 +120,12 @@ module AbstractController
     
     class TestPrefixedViews < ActiveSupport::TestCase
       test "templates are located inside their 'prefix' folder" do
-        result = Me3.process(:index)
+        result = Me3.new.process(:index)
         assert_equal "Hello from me3/index.erb", result.response_body
       end
 
       test "templates included their format" do
-        result = Me3.process(:formatted)
+        result = Me3.new.process(:formatted)
         assert_equal "Hello from me3/formatted.html.erb", result.response_body
       end
     end
@@ -136,11 +136,6 @@ module AbstractController
     class WithLayouts < PrefixedViews
       include Layouts
       
-      def self.inherited(klass)
-        klass._write_layout_method
-        super
-      end
-      
       private
       def self.layout(formats)
         begin
@@ -154,7 +149,7 @@ module AbstractController
       end
 
       def render_to_body(options = {})
-        options[:_layout] = options[:layout] || _default_layout
+        options[:_layout] = options[:layout] || _default_layout({})
         super
       end  
     end
@@ -173,7 +168,7 @@ module AbstractController
     
     class TestLayouts < ActiveSupport::TestCase
       test "layouts are included" do
-        result = Me4.process(:index)
+        result = Me4.new.process(:index)
         assert_equal "Me4 Enter : Hello from me4/index.erb : Exit", result.response_body
       end
     end
@@ -210,7 +205,7 @@ module AbstractController
     class TestRespondToAction < ActiveSupport::TestCase
       
       def assert_dispatch(klass, body = "success", action = :index)
-        response = klass.process(action).response_body
+        response = klass.new.process(action).response_body
         assert_equal body, response
       end
       
@@ -219,7 +214,7 @@ module AbstractController
       end
       
       test "raises ActionNotFound when method does not exist and action_missing is not defined" do
-        assert_raise(ActionNotFound) { DefaultRespondToActionController.process(:fail) }
+        assert_raise(ActionNotFound) { DefaultRespondToActionController.new.process(:fail) }
       end
       
       test "dispatches to action_missing when method does not exist and action_missing is defined" do
@@ -231,7 +226,7 @@ module AbstractController
       end
       
       test "raises ActionNotFound if method is defined but respond_to_action? returns false" do
-        assert_raise(ActionNotFound) { RespondToActionController.process(:fail) }
+        assert_raise(ActionNotFound) { RespondToActionController.new.process(:fail) }
       end
     end
     
diff --git a/actionpack/test/abstract_controller/callbacks_test.rb b/actionpack/test/abstract_controller/callbacks_test.rb
index 1de60868c3..817f60f7d1 100644
--- a/actionpack/test/abstract_controller/callbacks_test.rb
+++ b/actionpack/test/abstract_controller/callbacks_test.rb
@@ -8,7 +8,7 @@ module AbstractController
     end
     
     class Callback1 < ControllerWithCallbacks
-      process_action_callback :before, :first
+      set_callback :process_action, :before, :first
       
       def first
         @text = "Hello world"
@@ -21,7 +21,7 @@ module AbstractController
     
     class TestCallbacks < ActiveSupport::TestCase
       test "basic callbacks work" do
-        result = Callback1.process(:index)
+        result = Callback1.new.process(:index)
         assert_equal "Hello world", result.response_body
       end
     end
@@ -52,17 +52,17 @@ module AbstractController
     
     class TestCallbacks < ActiveSupport::TestCase
       test "before_filter works" do
-        result = Callback2.process(:index)
+        result = Callback2.new.process(:index)
         assert_equal "Hello world", result.response_body
       end
       
       test "after_filter works" do
-        result = Callback2.process(:index)
+        result = Callback2.new.process(:index)
         assert_equal "Goodbye", result.instance_variable_get("@second")
       end
       
       test "around_filter works" do
-        result = Callback2.process(:index)
+        result = Callback2.new.process(:index)
         assert_equal "FIRSTSECOND", result.instance_variable_get("@aroundz")
       end
     end
@@ -83,12 +83,12 @@ module AbstractController
 
     class TestCallbacks < ActiveSupport::TestCase
       test "before_filter works with procs" do
-        result = Callback3.process(:index)
+        result = Callback3.new.process(:index)
         assert_equal "Hello world", result.response_body
       end
       
       test "after_filter works with procs" do
-        result = Callback3.process(:index)
+        result = Callback3.new.process(:index)
         assert_equal "Goodbye", result.instance_variable_get("@second")
       end      
     end
@@ -118,17 +118,17 @@ module AbstractController
     
     class TestCallbacks < ActiveSupport::TestCase
       test "when :only is specified, a before filter is triggered on that action" do
-        result = CallbacksWithConditions.process(:index)
+        result = CallbacksWithConditions.new.process(:index)
         assert_equal "Hello, World", result.response_body
       end
       
       test "when :only is specified, a before filter is not triggered on other actions" do
-        result = CallbacksWithConditions.process(:sekrit_data)
+        result = CallbacksWithConditions.new.process(:sekrit_data)
         assert_equal "true", result.response_body
       end
       
       test "when :except is specified, an after filter is not triggered on that action" do
-        result = CallbacksWithConditions.process(:index)
+        result = CallbacksWithConditions.new.process(:index)
         assert_nil result.instance_variable_get("@authenticated")
       end
     end
@@ -158,17 +158,17 @@ module AbstractController
     
     class TestCallbacks < ActiveSupport::TestCase
       test "when :only is specified with an array, a before filter is triggered on that action" do
-        result = CallbacksWithArrayConditions.process(:index)
+        result = CallbacksWithArrayConditions.new.process(:index)
         assert_equal "Hello, World", result.response_body
       end
       
       test "when :only is specified with an array, a before filter is not triggered on other actions" do
-        result = CallbacksWithArrayConditions.process(:sekrit_data)
+        result = CallbacksWithArrayConditions.new.process(:sekrit_data)
         assert_equal "true", result.response_body
       end
       
       test "when :except is specified with an array, an after filter is not triggered on that action" do
-        result = CallbacksWithArrayConditions.process(:index)
+        result = CallbacksWithArrayConditions.new.process(:index)
         assert_nil result.instance_variable_get("@authenticated")
       end
     end    
@@ -183,12 +183,12 @@ module AbstractController
     
     class TestCallbacks < ActiveSupport::TestCase
       test "when a callback is modified in a child with :only, it works for the :only action" do
-        result = ChangedConditions.process(:index)
+        result = ChangedConditions.new.process(:index)
         assert_equal "Hello world", result.response_body
       end
       
       test "when a callback is modified in a child with :only, it does not work for other actions" do
-        result = ChangedConditions.process(:not_index)
+        result = ChangedConditions.new.process(:not_index)
         assert_equal "", result.response_body        
       end
     end
@@ -207,7 +207,7 @@ module AbstractController
     
     class TestHalting < ActiveSupport::TestCase
       test "when a callback sets the response body, the action should not be invoked" do
-        result = SetsResponseBody.process(:index)
+        result = SetsResponseBody.new.process(:index)
         assert_equal "Success", result.response_body
       end
     end
diff --git a/actionpack/test/abstract_controller/helper_test.rb b/actionpack/test/abstract_controller/helper_test.rb
index f91aefe606..0a2535f834 100644
--- a/actionpack/test/abstract_controller/helper_test.rb
+++ b/actionpack/test/abstract_controller/helper_test.rb
@@ -34,7 +34,7 @@ module AbstractController
     
     class TestHelpers < ActiveSupport::TestCase
       def test_helpers
-        result = MyHelpers1.process(:index)
+        result = MyHelpers1.new.process(:index)
         assert_equal "Hello World : Included", result.response_body
       end
     end
diff --git a/actionpack/test/abstract_controller/layouts_test.rb b/actionpack/test/abstract_controller/layouts_test.rb
index d3440c3de0..b28df7743f 100644
--- a/actionpack/test/abstract_controller/layouts_test.rb
+++ b/actionpack/test/abstract_controller/layouts_test.rb
@@ -9,7 +9,7 @@ module AbstractControllerTests
       include AbstractController::Renderer
       include AbstractController::Layouts
 
-      self.view_paths = [ActionView::Template::FixturePath.new(
+      self.view_paths = [ActionView::FixtureResolver.new(
         "layouts/hello.erb"                     => "With String <%= yield %>",
         "layouts/hello_override.erb"            => "With Override <%= yield %>",
         "layouts/abstract_controller_tests/layouts/with_string_implied_child.erb" =>
@@ -25,7 +25,7 @@ module AbstractControllerTests
       def controller_path() self.class.controller_path end
       
       def render_to_body(options)
-        options[:_layout] = _default_layout
+        options[:_layout] = _default_layout({})
         super
       end
     end
@@ -141,91 +141,82 @@ module AbstractControllerTests
       end
     end
     
-    # TODO Move to bootloader
-    AbstractController::Base.subclasses.each do |klass|
-      klass = klass.constantize
-      next unless klass < AbstractController::Layouts
-      klass.class_eval do
-        _write_layout_method
-      end
-    end
-    
     class TestBase < ActiveSupport::TestCase
       test "when no layout is specified, and no default is available, render without a layout" do
-        result = Blank.process(:index)
+        result = Blank.new.process(:index)
         assert_equal "Hello blank!", result.response_body
       end
       
       test "when layout is specified as a string, render with that layout" do
-        result = WithString.process(:index)
+        result = WithString.new.process(:index)
         assert_equal "With String Hello string!", result.response_body
       end
       
       test "when layout is specified as a string, but the layout is missing, raise an exception" do
-        assert_raises(ActionView::MissingTemplate) { WithMissingLayout.process(:index) }
+        assert_raises(ActionView::MissingTemplate) { WithMissingLayout.new.process(:index) }
       end
       
       test "when layout is specified as false, do not use a layout" do
-        result = WithFalseLayout.process(:index)
+        result = WithFalseLayout.new.process(:index)
         assert_equal "Hello false!", result.response_body
       end
       
       test "when layout is specified as nil, do not use a layout" do
-        result = WithNilLayout.process(:index)
+        result = WithNilLayout.new.process(:index)
         assert_equal "Hello nil!", result.response_body
       end
       
       test "when layout is specified as a symbol, call the requested method and use the layout returned" do
-        result = WithSymbol.process(:index)
+        result = WithSymbol.new.process(:index)
         assert_equal "OMGHI2U Hello symbol!", result.response_body
       end
       
       test "when layout is specified as a symbol and the method returns nil, don't use a layout" do
-        result = WithSymbolReturningNil.process(:index)
+        result = WithSymbolReturningNil.new.process(:index)
         assert_equal "Hello nilz!", result.response_body
       end
       
       test "when the layout is specified as a symbol and the method doesn't exist, raise an exception" do
-        assert_raises(NoMethodError, /:nilz/) { WithSymbolAndNoMethod.process(:index) }
+        assert_raises(NoMethodError, /:nilz/) { WithSymbolAndNoMethod.new.process(:index) }
       end
       
       test "when the layout is specified as a symbol and the method returns something besides a string/false/nil, raise an exception" do
-        assert_raises(ArgumentError) { WithSymbolReturningObj.process(:index) }
+        assert_raises(ArgumentError) { WithSymbolReturningObj.new.process(:index) }
       end
       
       test "when a child controller does not have a layout, use the parent controller layout" do
-        result = WithStringChild.process(:index)
+        result = WithStringChild.new.process(:index)
         assert_equal "With String Hello string!", result.response_body
       end
       
       test "when a child controller has specified a layout, use that layout and not the parent controller layout" do
-        result = WithStringOverriddenChild.process(:index)
+        result = WithStringOverriddenChild.new.process(:index)
         assert_equal "With Override Hello string!", result.response_body
       end
       
       test "when a child controller has an implied layout, use that layout and not the parent controller layout" do
-        result = WithStringImpliedChild.process(:index)
+        result = WithStringImpliedChild.new.process(:index)
         assert_equal "With Implied Hello string!", result.response_body
       end
       
       test "when a child controller specifies layout nil, do not use the parent layout" do
-        result = WithNilChild.process(:index)
+        result = WithNilChild.new.process(:index)
         assert_equal "Hello string!", result.response_body
       end
             
       test "when a grandchild has no layout specified, the child has an implied layout, and the " \
         "parent has specified a layout, use the child controller layout" do
-          result = WithChildOfImplied.process(:index)
+          result = WithChildOfImplied.new.process(:index)
           assert_equal "With Implied Hello string!", result.response_body
       end
       
       test "raises an exception when specifying layout true" do
         assert_raises ArgumentError do
-          Object.class_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1
+          Object.class_eval do
             class ::BadOmgFailLolLayout < AbstractControllerTests::Layouts::Base
               layout true
             end
-          RUBY_EVAL
+          end
         end
       end
     end
diff --git a/actionpack/test/abstract_unit.rb b/actionpack/test/abstract_unit.rb
index c71da7fa6c..30e795a7a2 100644
--- a/actionpack/test/abstract_unit.rb
+++ b/actionpack/test/abstract_unit.rb
@@ -1,19 +1,27 @@
-if ENV['new_base']
-  puts *caller
-  raise 'new_base/abstract_unit already loaded'
-end
 $:.unshift(File.dirname(__FILE__) + '/../lib')
 $:.unshift(File.dirname(__FILE__) + '/../../activesupport/lib')
+$:.unshift(File.dirname(__FILE__) + '/../../activemodel/lib')
+$:.unshift(File.dirname(__FILE__) + '/lib')
+
 $:.unshift(File.dirname(__FILE__) + '/fixtures/helpers')
 $:.unshift(File.dirname(__FILE__) + '/fixtures/alternate_helpers')
 
-require 'rubygems'
-require 'yaml'
-require 'stringio'
+ENV['new_base'] = "true"
+$stderr.puts "Running old tests on new_base"
+
 require 'test/unit'
+require 'active_support'
+
+require 'active_support/test_case'
+require 'action_controller/abstract'
+require 'action_controller'
+require 'fixture_template'
+require 'action_controller/testing/process'
+require 'action_view/test_case'
+require 'action_controller/testing/integration'
+require 'active_support/dependencies'
 
-gem 'mocha', '>= 0.9.5'
-require 'mocha'
+$tags[:new_base] = true
 
 begin
   require 'ruby-debug'
@@ -23,24 +31,88 @@ rescue LoadError
   # Debugging disabled. `gem install ruby-debug` to enable.
 end
 
-require 'action_controller'
-require 'action_controller/testing/process'
-require 'action_view/test_case'
-
-$tags[:old_base] = true
+ActiveSupport::Dependencies.hook!
 
 # Show backtraces for deprecated behavior for quicker cleanup.
 ActiveSupport::Deprecation.debug = true
 
-ActionController::Base.logger = nil
-ActionController::Routing::Routes.reload rescue nil
-
-ActionController::Base.session_store = nil
-
 # Register danish language for testing
 I18n.backend.store_translations 'da', {}
 I18n.backend.store_translations 'pt-BR', {}
 ORIGINAL_LOCALES = I18n.available_locales.map {|locale| locale.to_s }.sort
 
 FIXTURE_LOAD_PATH = File.join(File.dirname(__FILE__), 'fixtures')
-ActionController::Base.view_paths = FIXTURE_LOAD_PATH
+
+module ActionView
+  class TestCase
+    setup do
+      ActionController::Routing::Routes.draw do |map|
+        map.connect ':controller/:action/:id'
+      end
+    end
+  end
+end
+
+module ActionController
+  Base.session = {
+    :key         => '_testing_session',
+    :secret      => '8273f16463985e2b3747dc25e30f2528'
+  }
+  Base.session_store = nil
+
+  class Base
+    include ActionController::Testing
+  end
+  
+  Base.view_paths = FIXTURE_LOAD_PATH
+  
+  class TestCase
+    include TestProcess
+    setup do
+      ActionController::Routing::Routes.draw do |map|
+        map.connect ':controller/:action/:id'
+      end
+    end
+    
+    def assert_template(options = {}, message = nil)
+      validate_request!
+
+      hax = @controller._action_view.instance_variable_get(:@_rendered)
+
+      case options
+      when NilClass, String
+        rendered = (hax[:template] || []).map { |t| t.identifier }
+        msg = build_message(message,
+                "expecting <?> but rendering with <?>",
+                options, rendered.join(', '))
+        assert_block(msg) do
+          if options.nil?
+            hax[:template].blank?
+          else
+            rendered.any? { |t| t.match(options) }
+          end
+        end
+      when Hash
+        if expected_partial = options[:partial]
+          partials = hax[:partials]
+          if expected_count = options[:count]
+            found = partials.detect { |p, _| p.identifier.match(expected_partial) }
+            actual_count = found.nil? ? 0 : found.second
+            msg = build_message(message,
+                    "expecting ? to be rendered ? time(s) but rendered ? time(s)",
+                     expected_partial, expected_count, actual_count)
+            assert(actual_count == expected_count.to_i, msg)
+          else
+            msg = build_message(message,
+                    "expecting partial <?> but action rendered <?>",
+                    options[:partial], partials.keys)
+            assert(partials.keys.any? { |p| p.identifier.match(expected_partial) }, msg)
+          end
+        else
+          assert hax[:partials].empty?,
+            "Expected no partials to be rendered"
+        end
+      end
+    end
+  end
+end
diff --git a/actionpack/test/activerecord/polymorphic_routes_test.rb b/actionpack/test/activerecord/polymorphic_routes_test.rb
index b9f5be2361..2036d1eeb5 100644
--- a/actionpack/test/activerecord/polymorphic_routes_test.rb
+++ b/actionpack/test/activerecord/polymorphic_routes_test.rb
@@ -234,10 +234,13 @@ class PolymorphicRoutesTest < ActionController::TestCase
     with_admin_test_routes do
       @project.save
       @task.save
+
+      options = {}
       object_array = [:admin, @project, @task]
-      assert_no_difference 'object_array.size' do
-        polymorphic_url(object_array)
-      end
+      original_args = [object_array.dup, options.dup]
+
+      assert_no_difference('object_array.size') { polymorphic_path(object_array, options) }
+      assert_equal original_args, [object_array, options]
     end
   end
   
diff --git a/actionpack/test/activerecord/render_partial_with_record_identification_test.rb b/actionpack/test/activerecord/render_partial_with_record_identification_test.rb
index 0a596c7ae0..2a31f3be44 100644
--- a/actionpack/test/activerecord/render_partial_with_record_identification_test.rb
+++ b/actionpack/test/activerecord/render_partial_with_record_identification_test.rb
@@ -126,6 +126,7 @@ class RenderPartialWithRecordIdentificationController < ActionController::Base
 end
 
 class Game < Struct.new(:name, :id)
+  extend ActiveModel::Naming
   def to_param
     id.to_s
   end
diff --git a/actionpack/test/controller/action_pack_assertions_test.rb b/actionpack/test/controller/action_pack_assertions_test.rb
index 24686ab4b6..ecbaba39d1 100644
--- a/actionpack/test/controller/action_pack_assertions_test.rb
+++ b/actionpack/test/controller/action_pack_assertions_test.rb
@@ -13,6 +13,18 @@ class ActionPackAssertionsController < ActionController::Base
   # a standard template
   def hello_xml_world() render :template => "test/hello_xml_world"; end
 
+  # a standard template rendering PDF
+  def hello_xml_world_pdf
+    self.content_type = "application/pdf"
+    render :template => "test/hello_xml_world"
+  end
+
+  # a standard template rendering PDF
+  def hello_xml_world_pdf_header
+    response.headers["Content-Type"] = "application/pdf; charset=utf-8"
+    render :template => "test/hello_xml_world"
+  end
+
   # a standard partial
   def partial() render :partial => 'test/partial'; end
 
@@ -537,11 +549,13 @@ class ActionPackHeaderTest < ActionController::TestCase
   end
 
   def test_rendering_xml_respects_content_type
-    pending do
-      @response.headers['type'] = 'application/pdf'
-      process :hello_xml_world
-      assert_equal('application/pdf; charset=utf-8', @response.headers['Content-Type'])
-    end
+    process :hello_xml_world_pdf
+    assert_equal('application/pdf; charset=utf-8', @response.headers['Content-Type'])
+  end
+
+  def test_rendering_xml_respects_content_type_when_set_in_the_header
+    process :hello_xml_world_pdf_header
+    assert_equal('application/pdf; charset=utf-8', @response.headers['Content-Type'])
   end
 
   def test_render_text_with_custom_content_type
diff --git a/actionpack/test/controller/base_test.rb b/actionpack/test/controller/base_test.rb
index 3a4cdb81d9..8877057070 100644
--- a/actionpack/test/controller/base_test.rb
+++ b/actionpack/test/controller/base_test.rb
@@ -87,11 +87,11 @@ class ControllerInstanceTests < Test::Unit::TestCase
   def test_action_methods
     @empty_controllers.each do |c|
       hide_mocha_methods_from_controller(c)
-      assert_equal Set.new, c.__send__(:action_methods), "#{c.controller_path} should be empty!"
+      assert_equal Set.new, c.class.__send__(:action_methods), "#{c.controller_path} should be empty!"
     end
     @non_empty_controllers.each do |c|
       hide_mocha_methods_from_controller(c)
-      assert_equal Set.new(%w(public_action)), c.__send__(:action_methods), "#{c.controller_path} should not be empty!"
+      assert_equal Set.new(%w(public_action)), c.class.__send__(:action_methods), "#{c.controller_path} should not be empty!"
     end
   end
 
@@ -145,7 +145,8 @@ class PerformActionTest < ActionController::TestCase
   
   def test_method_missing_is_not_an_action_name
     use_controller MethodMissingController
-    assert ! @controller.__send__(:action_methods).include?('method_missing')
+
+    assert ! @controller.__send__(:action_method?, 'method_missing')
     
     get :method_missing
     assert_response :success
diff --git a/actionpack/test/controller/content_type_test.rb b/actionpack/test/controller/content_type_test.rb
index d622ac1e85..511788aec8 100644
--- a/actionpack/test/controller/content_type_test.rb
+++ b/actionpack/test/controller/content_type_test.rb
@@ -83,14 +83,14 @@ class ContentTypeTest < ActionController::TestCase
   # :ported:
   def test_content_type_from_body
     get :render_content_type_from_body
-    assert_equal "application/rss+xml", @response.content_type
+    assert_equal Mime::RSS, @response.content_type
     assert_equal "utf-8", @response.charset
   end
 
   # :ported:
   def test_content_type_from_render
     get :render_content_type_from_render
-    assert_equal "application/rss+xml", @response.content_type
+    assert_equal Mime::RSS, @response.content_type
     assert_equal "utf-8", @response.charset
   end
 
diff --git a/actionpack/test/controller/filter_params_test.rb b/actionpack/test/controller/filter_params_test.rb
index 8c9e4f81de..f7864745eb 100644
--- a/actionpack/test/controller/filter_params_test.rb
+++ b/actionpack/test/controller/filter_params_test.rb
@@ -40,7 +40,8 @@ class FilterParamTest < ActionController::TestCase
     [{'foo'=>'bar', 'bar'=>'foo'},{'foo'=>'[FILTERED]', 'bar'=>'foo'},%w'foo baz'],
     [{'foo'=>'bar', 'baz'=>'foo'},{'foo'=>'[FILTERED]', 'baz'=>'[FILTERED]'},%w'foo baz'],
     [{'bar'=>{'foo'=>'bar','bar'=>'foo'}},{'bar'=>{'foo'=>'[FILTERED]','bar'=>'foo'}},%w'fo'],
-    [{'foo'=>{'foo'=>'bar','bar'=>'foo'}},{'foo'=>'[FILTERED]'},%w'f banana']]
+    [{'foo'=>{'foo'=>'bar','bar'=>'foo'}},{'foo'=>'[FILTERED]'},%w'f banana'],
+    [{'baz'=>[{'foo'=>'baz'}]}, {'baz'=>[{'foo'=>'[FILTERED]'}]}, %w(foo)]]
 
     test_hashes.each do |before_filter, after_filter, filter_words|
       FilterParamController.filter_parameter_logging(*filter_words)
diff --git a/actionpack/test/controller/filters_test.rb b/actionpack/test/controller/filters_test.rb
index 5e28ef6007..2da97a9d86 100644
--- a/actionpack/test/controller/filters_test.rb
+++ b/actionpack/test/controller/filters_test.rb
@@ -9,24 +9,20 @@ class ActionController::Base
       end unless method_defined?(pending)
     end
 
-    if defined?(ActionController::Http)
-      def before_filters
-        filters = _process_action_callbacks.select { |c| c.kind == :before }
-        filters.map! { |c| c.instance_variable_get(:@raw_filter) }
-      end
+    def before_filters
+      filters = _process_action_callbacks.select { |c| c.kind == :before }
+      filters.map! { |c| c.instance_variable_get(:@raw_filter) }
     end
   end
 
-  if defined?(ActionController::Http)
-    def assigns(key = nil)
-      assigns = {}
-      instance_variable_names.each do |ivar|
-        next if ActionController::Base.protected_instance_variables.include?(ivar)
-        assigns[ivar[1..-1]] = instance_variable_get(ivar)
-      end
-
-      key.nil? ? assigns : assigns[key.to_s]
+  def assigns(key = nil)
+    assigns = {}
+    instance_variable_names.each do |ivar|
+      next if ActionController::Base.protected_instance_variables.include?(ivar)
+      assigns[ivar[1..-1]] = instance_variable_get(ivar)
     end
+
+    key.nil? ? assigns : assigns[key.to_s]
   end
 end
 
@@ -231,24 +227,29 @@ class FilterTest < ActionController::TestCase
   end
 
   class ConditionalParentOfConditionalSkippingController < ConditionalFilterController
-    before_filter :conditional_in_parent, :only => [:show, :another_action]
-    after_filter  :conditional_in_parent, :only => [:show, :another_action]
+    before_filter :conditional_in_parent_before, :only => [:show, :another_action]
+    after_filter  :conditional_in_parent_after, :only => [:show, :another_action]
 
     private
 
-      def conditional_in_parent
+      def conditional_in_parent_before
+        @ran_filter ||= []
+        @ran_filter << 'conditional_in_parent_before'
+      end
+
+      def conditional_in_parent_after
         @ran_filter ||= []
-        @ran_filter << 'conditional_in_parent'
+        @ran_filter << 'conditional_in_parent_after'
       end
   end
 
   class ChildOfConditionalParentController < ConditionalParentOfConditionalSkippingController
-    skip_before_filter :conditional_in_parent, :only => :another_action
-    skip_after_filter  :conditional_in_parent, :only => :another_action
+    skip_before_filter :conditional_in_parent_before, :only => :another_action
+    skip_after_filter  :conditional_in_parent_after, :only => :another_action
   end
 
   class AnotherChildOfConditionalParentController < ConditionalParentOfConditionalSkippingController
-    skip_before_filter :conditional_in_parent, :only => :show
+    skip_before_filter :conditional_in_parent_before, :only => :show
   end
 
   class ProcController < PrependingController
@@ -596,7 +597,7 @@ class FilterTest < ActionController::TestCase
   def test_prepending_and_appending_around_filter
     controller = test_process(MixedFilterController)
     assert_equal " before aroundfilter  before procfilter  before appended aroundfilter " +
-                 " after appended aroundfilter  after aroundfilter  after procfilter ",
+                 " after appended aroundfilter  after procfilter  after aroundfilter ",
                  MixedFilterController.execution_log
   end
 
@@ -658,18 +659,18 @@ class FilterTest < ActionController::TestCase
 
   def test_conditional_skipping_of_filters_when_parent_filter_is_also_conditional
     test_process(ChildOfConditionalParentController)
-    assert_equal %w( conditional_in_parent conditional_in_parent ), assigns['ran_filter']
+    assert_equal %w( conditional_in_parent_before conditional_in_parent_after ), assigns['ran_filter']
     test_process(ChildOfConditionalParentController, 'another_action')
     assert_nil assigns['ran_filter']
   end
 
   def test_condition_skipping_of_filters_when_siblings_also_have_conditions
     test_process(ChildOfConditionalParentController)
-    assert_equal %w( conditional_in_parent conditional_in_parent ), assigns['ran_filter'], "1"
+    assert_equal %w( conditional_in_parent_before conditional_in_parent_after ), assigns['ran_filter']
     test_process(AnotherChildOfConditionalParentController)
-    assert_equal nil, assigns['ran_filter']
+    assert_equal %w( conditional_in_parent_after ), assigns['ran_filter']
     test_process(ChildOfConditionalParentController)
-    assert_equal %w( conditional_in_parent conditional_in_parent ), assigns['ran_filter']
+    assert_equal %w( conditional_in_parent_before conditional_in_parent_after ), assigns['ran_filter']
   end
 
   def test_changing_the_requirements
@@ -823,7 +824,9 @@ class ControllerWithAllTypesOfFilters < PostsController
 end
 
 class ControllerWithTwoLessFilters < ControllerWithAllTypesOfFilters
+  $vbf = true
   skip_filter :around_again
+  $vbf = false
   skip_filter :after
 end
 
@@ -858,12 +861,6 @@ class YieldingAroundFiltersTest < ActionController::TestCase
     assert_raise(After) { test_process(controller,'raises_after') }
   end
 
-  def test_with_method
-    controller = ControllerWithFilterMethod
-    assert_nothing_raised { test_process(controller,'no_raise') }
-    assert_raise(After) { test_process(controller,'raises_after') }
-  end
-
   def test_with_proc
     test_process(ControllerWithProcFilter,'no_raise')
     assert assigns['before']
@@ -888,7 +885,7 @@ class YieldingAroundFiltersTest < ActionController::TestCase
 
   def test_filter_order_with_all_filter_types
     test_process(ControllerWithAllTypesOfFilters,'no_raise')
-    assert_equal 'before around (before yield) around_again (before yield) around_again (after yield) around (after yield) after', assigns['ran_filter'].join(' ')
+    assert_equal 'before around (before yield) around_again (before yield) around_again (after yield) after around (after yield)', assigns['ran_filter'].join(' ')
   end
 
   def test_filter_order_with_skip_filter_method
@@ -901,7 +898,6 @@ class YieldingAroundFiltersTest < ActionController::TestCase
     response = test_process(controller, 'fail_1')
     assert_equal ' ', response.body
     assert_equal 1, controller.instance_variable_get(:@try)
-    assert controller.instance_variable_get(:@before_filter_chain_aborted)
   end
 
   def test_second_filter_in_multiple_before_filter_chain_halts
@@ -909,7 +905,6 @@ class YieldingAroundFiltersTest < ActionController::TestCase
     response = test_process(controller, 'fail_2')
     assert_equal ' ', response.body
     assert_equal 2, controller.instance_variable_get(:@try)
-    assert controller.instance_variable_get(:@before_filter_chain_aborted)
   end
 
   def test_last_filter_in_multiple_before_filter_chain_halts
@@ -917,7 +912,6 @@ class YieldingAroundFiltersTest < ActionController::TestCase
     response = test_process(controller, 'fail_3')
     assert_equal ' ', response.body
     assert_equal 3, controller.instance_variable_get(:@try)
-    assert controller.instance_variable_get(:@before_filter_chain_aborted)
   end
 
   protected
diff --git a/actionpack/test/controller/helper_test.rb b/actionpack/test/controller/helper_test.rb
index 5b9feb3630..23149fee27 100644
--- a/actionpack/test/controller/helper_test.rb
+++ b/actionpack/test/controller/helper_test.rb
@@ -127,7 +127,7 @@ class HelperTest < Test::Unit::TestCase
   end
 
   def test_all_helpers
-    methods = AllHelpersController.master_helper_module.instance_methods.map(&:to_s)
+    methods = AllHelpersController._helpers.instance_methods.map {|m| m.to_s}
 
     # abc_helper.rb
     assert methods.include?('bare_a')
@@ -143,7 +143,7 @@ class HelperTest < Test::Unit::TestCase
     @controller_class.helpers_dir = File.dirname(__FILE__) + '/../fixtures/alternate_helpers'
 
     # Reload helpers
-    @controller_class.master_helper_module = Module.new
+    @controller_class._helpers = Module.new
     @controller_class.helper :all
 
     # helpers/abc_helper.rb should not be included
@@ -171,11 +171,11 @@ class HelperTest < Test::Unit::TestCase
 
   private
     def expected_helper_methods
-      TestHelper.instance_methods.map(&:to_s)
+      TestHelper.instance_methods.map {|m| m.to_s }
     end
 
     def master_helper_methods
-      @controller_class.master_helper_module.instance_methods.map(&:to_s)
+      @controller_class._helpers.instance_methods.map {|m| m.to_s }
     end
 
     def missing_methods
diff --git a/actionpack/test/controller/http_digest_authentication_test.rb b/actionpack/test/controller/http_digest_authentication_test.rb
index 15a11395bb..58f3b88075 100644
--- a/actionpack/test/controller/http_digest_authentication_test.rb
+++ b/actionpack/test/controller/http_digest_authentication_test.rb
@@ -76,6 +76,15 @@ class HttpDigestAuthenticationTest < ActionController::TestCase
     assert_equal 'SuperSecret', credentials[:realm]
   end
 
+  test "authentication request with nil credentials" do
+    @request.env['HTTP_AUTHORIZATION'] = encode_credentials(:username => nil, :password => nil)
+    get :index
+
+    assert_response :unauthorized
+    assert_equal "HTTP Digest: Access denied.\n", @response.body, "Authentication didn't fail for request"
+    assert_not_equal 'Hello Secret', @response.body, "Authentication didn't fail for request"
+  end
+
   test "authentication request with invalid password" do
     @request.env['HTTP_AUTHORIZATION'] = encode_credentials(:username => 'pretty', :password => 'foo')
     get :display
@@ -168,6 +177,11 @@ class HttpDigestAuthenticationTest < ActionController::TestCase
     assert_equal 'Definitely Maybe', @response.body
   end
 
+  test "validate_digest_response should fail with nil returning password_procedure" do
+    @request.env['HTTP_AUTHORIZATION'] = encode_credentials(:username => nil, :password => nil)
+    assert !ActionController::HttpAuthentication::Digest.validate_digest_response(@request, "SuperSecret"){nil}
+  end
+
   private
 
   def encode_credentials(options)
diff --git a/actionpack/test/controller/layout_test.rb b/actionpack/test/controller/layout_test.rb
index cb9bdf57bb..feb2f81cc1 100644
--- a/actionpack/test/controller/layout_test.rb
+++ b/actionpack/test/controller/layout_test.rb
@@ -38,15 +38,6 @@ end
 class MultipleExtensions < LayoutTest
 end
 
-if defined?(ActionController::Http)
-  LayoutTest._write_layout_method
-  ProductController._write_layout_method
-  ItemController._write_layout_method
-  ThirdPartyTemplateLibraryController._write_layout_method
-  MultipleExtensions._write_layout_method
-  ControllerNameSpace::NestedController._write_layout_method
-end
-
 class LayoutAutoDiscoveryTest < ActionController::TestCase
   def setup
     super
@@ -174,26 +165,10 @@ class LayoutSetInResponseTest < ActionController::TestCase
     assert_nil @controller.template.layout
   end
 
-  for_tag(:old_base) do
-    # exempt_from_layout is deprecated
-    def test_exempt_from_layout_honored_by_render_template
-      ActionController::Base.exempt_from_layout :erb
-      @controller = RenderWithTemplateOptionController.new
-
-      get :hello
-      assert_equal "alt/hello.rhtml", @response.body.strip
-
-    ensure
-      ActionController::Base.exempt_from_layout.delete(ERB)
-    end
-  end
-
   def test_layout_is_picked_from_the_controller_instances_view_path
-    pending do
-      @controller = PrependsViewPathController.new
-      get :hello
-      assert_equal 'layouts/alt', @controller.template.layout
-    end
+    @controller = PrependsViewPathController.new
+    get :hello
+    assert @controller.template.layout =~ /layouts\/alt\.\w+/
   end
 
   def test_absolute_pathed_layout
diff --git a/actionpack/test/controller/mime_responds_test.rb b/actionpack/test/controller/mime_responds_test.rb
index 56b49251c6..93ca34c41c 100644
--- a/actionpack/test/controller/mime_responds_test.rb
+++ b/actionpack/test/controller/mime_responds_test.rb
@@ -375,11 +375,9 @@ class MimeControllerTest < ActionController::TestCase
   end
 
   def test_rjs_type_skips_layout
-    pending(:new_base) do
-      @request.accept = "text/javascript"
-      get :all_types_with_layout
-      assert_equal 'RJS for all_types_with_layout', @response.body
-    end
+    @request.accept = "text/javascript"
+    get :all_types_with_layout
+    assert_equal 'RJS for all_types_with_layout', @response.body
   end
 
   def test_html_type_with_layout
@@ -467,14 +465,6 @@ class MimeControllerTest < ActionController::TestCase
     assert_equal '<html><div id="iphone">Hello iPhone future from iPhone!</div></html>', @response.body
     assert_equal "text/html", @response.content_type
   end
-
-  def test_format_with_custom_response_type_and_request_headers_with_only_one_layout_present
-    get :iphone_with_html_response_type_without_layout
-    assert_equal '<html><div id="html_missing">Hello future from Firefox!</div></html>', @response.body
-
-    @request.accept = "text/iphone"
-    assert_raise(ActionView::MissingTemplate) { get :iphone_with_html_response_type_without_layout }
-  end
 end
 
 class AbstractPostController < ActionController::Base
@@ -512,11 +502,6 @@ class SuperPostController < PostController
   end
 end
 
-if defined?(ActionController::Http)
-  PostController._write_layout_method
-  SuperPostController._write_layout_method
-end
-
 class MimeControllerLayoutsTest < ActionController::TestCase
   tests PostController
 
@@ -534,16 +519,14 @@ class MimeControllerLayoutsTest < ActionController::TestCase
     assert_equal 'Hello iPhone', @response.body
   end
 
-  for_tag(:old_base) do
-    def test_format_with_inherited_layouts
-      @controller = SuperPostController.new
+  def test_format_with_inherited_layouts
+    @controller = SuperPostController.new
 
-      get :index
-      assert_equal 'Super Firefox', @response.body
+    get :index
+    assert_equal '<html><div id="html">Super Firefox</div></html>', @response.body
 
-      @request.accept = "text/iphone"
-      get :index
-      assert_equal '<html><div id="super_iphone">Super iPhone</div></html>', @response.body
-    end
+    @request.accept = "text/iphone"
+    get :index
+    assert_equal '<html><div id="super_iphone">Super iPhone</div></html>', @response.body
   end
 end
diff --git a/actionpack/test/controller/record_identifier_test.rb b/actionpack/test/controller/record_identifier_test.rb
index 12c1eaea69..28bc608d47 100644
--- a/actionpack/test/controller/record_identifier_test.rb
+++ b/actionpack/test/controller/record_identifier_test.rb
@@ -1,6 +1,8 @@
 require 'abstract_unit'
 
 class Comment
+  extend ActiveModel::Naming
+
   attr_reader :id
   def save; @id = 1 end
   def new_record?; @id.nil? end
diff --git a/actionpack/test/controller/redirect_test.rb b/actionpack/test/controller/redirect_test.rb
index 13247f2d08..453a77e7bc 100644
--- a/actionpack/test/controller/redirect_test.rb
+++ b/actionpack/test/controller/redirect_test.rb
@@ -4,6 +4,7 @@ class WorkshopsController < ActionController::Base
 end
 
 class Workshop
+  extend ActiveModel::Naming
   attr_accessor :id, :new_record
 
   def initialize(id, new_record)
diff --git a/actionpack/test/controller/render_test.rb b/actionpack/test/controller/render_test.rb
index 9e42d1738a..acb0c895e0 100644
--- a/actionpack/test/controller/render_test.rb
+++ b/actionpack/test/controller/render_test.rb
@@ -301,6 +301,9 @@ class TestController < ActionController::Base
   def render_implicit_html_template_from_xhr_request
   end
 
+  def render_implicit_js_template_without_layout
+  end
+
   def formatted_html_erb
   end
 
@@ -928,16 +931,13 @@ class RenderTest < ActionController::TestCase
   end
 
   def test_should_implicitly_render_html_template_from_xhr_request
-    pending
-    # xhr :get, :render_implicit_html_template_from_xhr_request
-    # assert_equal "XHR!\nHello HTML!", @response.body
+    xhr :get, :render_implicit_html_template_from_xhr_request
+    assert_equal "XHR!\nHello HTML!", @response.body
   end
 
   def test_should_implicitly_render_js_template_without_layout
-    pending do
-      get :render_implicit_js_template_without_layout, :format => :js
-      assert_no_match %r{<html>}, @response.body
-    end
+    get :render_implicit_js_template_without_layout, :format => :js
+    assert_no_match %r{<html>}, @response.body
   end
 
   def test_should_render_formatted_template
@@ -1268,13 +1268,6 @@ class RenderTest < ActionController::TestCase
     assert_equal "Hola: PratikHola: Amy", @response.body
   end
 
-  def test_partial_with_implicit_local_assignment
-    assert_deprecated do
-      get :partial_with_implicit_local_assignment
-      assert_equal "Hello: Marcel", @response.body
-    end
-  end
-
   def test_render_missing_partial_template
     assert_raise(ActionView::MissingTemplate) do
       get :missing_partial
diff --git a/actionpack/test/controller/routing_test.rb b/actionpack/test/controller/routing_test.rb
index 6b08a04b10..fb83dba395 100644
--- a/actionpack/test/controller/routing_test.rb
+++ b/actionpack/test/controller/routing_test.rb
@@ -1623,13 +1623,13 @@ class RouteSetTest < Test::Unit::TestCase
     set.draw { |m| m.connect ':controller/:action/:id' }
     path, extras = set.generate_extras(:controller => "foo", :action => "bar", :id => 15, :this => "hello", :that => "world")
     assert_equal "/foo/bar/15", path
-    assert_equal %w(that this), extras.map(&:to_s).sort
+    assert_equal %w(that this), extras.map { |e| e.to_s }.sort
   end
 
   def test_extra_keys
     set.draw { |m| m.connect ':controller/:action/:id' }
     extras = set.extra_keys(:controller => "foo", :action => "bar", :id => 15, :this => "hello", :that => "world")
-    assert_equal %w(that this), extras.map(&:to_s).sort
+    assert_equal %w(that this), extras.map { |e| e.to_s }.sort
   end
 
   def test_generate_extras_not_first
@@ -1639,7 +1639,7 @@ class RouteSetTest < Test::Unit::TestCase
     end
     path, extras = set.generate_extras(:controller => "foo", :action => "bar", :id => 15, :this => "hello", :that => "world")
     assert_equal "/foo/bar/15", path
-    assert_equal %w(that this), extras.map(&:to_s).sort
+    assert_equal %w(that this), extras.map { |e| e.to_s }.sort
   end
 
   def test_generate_not_first
@@ -1656,7 +1656,7 @@ class RouteSetTest < Test::Unit::TestCase
       map.connect ':controller/:action/:id'
     end
     extras = set.extra_keys(:controller => "foo", :action => "bar", :id => 15, :this => "hello", :that => "world")
-    assert_equal %w(that this), extras.map(&:to_s).sort
+    assert_equal %w(that this), extras.map { |e| e.to_s }.sort
   end
 
   def test_draw
@@ -1667,6 +1667,17 @@ class RouteSetTest < Test::Unit::TestCase
     assert_equal 1, set.routes.size
   end
 
+  def test_draw_symbol_controller_name
+    assert_equal 0, set.routes.size
+    set.draw do |map|
+      map.connect '/users/index', :controller => :users, :action => :index
+    end
+    @request = ActionController::TestRequest.new
+    @request.request_uri = '/users/index'
+    assert_nothing_raised { set.recognize(@request) }
+    assert_equal 1, set.routes.size
+  end
+
   def test_named_draw
     assert_equal 0, set.routes.size
     set.draw do |map|
@@ -2481,6 +2492,16 @@ class RouteSetTest < Test::Unit::TestCase
     end
     assert_equal({:controller => 'pages', :action => 'show', :name => 'JAMIS'}, set.recognize_path('/page/JAMIS'))
   end
+
+  def test_routes_with_symbols
+    set.draw do |map|
+      map.connect 'unnamed', :controller => :pages, :action => :show, :name => :as_symbol
+      map.named   'named',   :controller => :pages, :action => :show, :name => :as_symbol
+    end
+    assert_equal({:controller => 'pages', :action => 'show', :name => :as_symbol}, set.recognize_path('/unnamed'))
+    assert_equal({:controller => 'pages', :action => 'show', :name => :as_symbol}, set.recognize_path('/named'))
+  end
+
 end
 
 class RouteLoadingTest < Test::Unit::TestCase
diff --git a/actionpack/test/controller/send_file_test.rb b/actionpack/test/controller/send_file_test.rb
index 0bc0eb2df6..ae32ee5649 100644
--- a/actionpack/test/controller/send_file_test.rb
+++ b/actionpack/test/controller/send_file_test.rb
@@ -45,8 +45,8 @@ class SendFileTest < ActionController::TestCase
     assert_equal file_data, response.body
   end
 
-  for_tag(:old_base) do
-    def test_file_stream
+  def test_file_stream
+    pending do
       response = nil
       assert_nothing_raised { response = process('file') }
       assert_not_nil response
@@ -91,10 +91,10 @@ class SendFileTest < ActionController::TestCase
 
   def test_headers_after_send_shouldnt_include_charset
     response = process('data')
-    assert_equal "application/octet-stream", response.content_type
+    assert_equal "application/octet-stream", response.headers["Content-Type"]
 
     response = process('file')
-    assert_equal "application/octet-stream", response.content_type
+    assert_equal "application/octet-stream", response.headers["Content-Type"]
   end
 
   # Test that send_file_headers! is setting the correct HTTP headers.
@@ -115,8 +115,8 @@ class SendFileTest < ActionController::TestCase
     @controller.send(:send_file_headers!, options)
 
     h = @controller.headers
-    assert_equal 1, h['Content-Length']
-    assert_equal 'image/png', h['Content-Type']
+    assert_equal '1', h['Content-Length']
+    assert_equal 'image/png', @controller.content_type
     assert_equal 'disposition; filename="filename"', h['Content-Disposition']
     assert_equal 'binary', h['Content-Transfer-Encoding']
 
@@ -136,9 +136,7 @@ class SendFileTest < ActionController::TestCase
     @controller.headers = {}
     @controller.send(:send_file_headers!, options)
 
-    headers = @controller.headers
-
-    assert_equal 'image/png', headers['Content-Type']
+    assert_equal 'image/png', @controller.content_type
   end
   
 
diff --git a/actionpack/test/dispatch/mime_type_test.rb b/actionpack/test/dispatch/mime_type_test.rb
index 2fdf4819bb..4ea0fedb8f 100644
--- a/actionpack/test/dispatch/mime_type_test.rb
+++ b/actionpack/test/dispatch/mime_type_test.rb
@@ -56,7 +56,7 @@ class MimeTypeTest < ActiveSupport::TestCase
 
   test "type convenience methods" do
     # Don't test Mime::ALL, since it Mime::ALL#html? == true
-    types = Mime::SET.to_a.map(&:to_sym).uniq - [:all]
+    types = Mime::SET.symbols.uniq - [:all]
 
     # Remove custom Mime::Type instances set in other tests, like Mime::GIF and Mime::IPHONE
     types.delete_if { |type| !Mime.const_defined?(type.to_s.upcase) }
@@ -76,7 +76,7 @@ class MimeTypeTest < ActiveSupport::TestCase
   end
 
   test "verifiable mime types" do
-    all_types = Mime::SET.to_a.map(&:to_sym)
+    all_types = Mime::SET.symbols
     all_types.uniq!
     # Remove custom Mime::Type instances set in other tests, like Mime::GIF and Mime::IPHONE
     all_types.delete_if { |type| !Mime.const_defined?(type.to_s.upcase) }
diff --git a/actionpack/test/fixtures/layouts/builder.builder b/actionpack/test/fixtures/layouts/builder.builder
index 729af4b8bc..7c7d4b2dd1 100644
--- a/actionpack/test/fixtures/layouts/builder.builder
+++ b/actionpack/test/fixtures/layouts/builder.builder
@@ -1,3 +1,3 @@
 xml.wrapper do
-  xml << @content_for_layout
+  xml << yield
 end
\ No newline at end of file
diff --git a/actionpack/test/fixtures/layouts/standard.html.erb b/actionpack/test/fixtures/layouts/standard.html.erb
index 368764e6f4..5e6c24fe39 100644
--- a/actionpack/test/fixtures/layouts/standard.html.erb
+++ b/actionpack/test/fixtures/layouts/standard.html.erb
@@ -1 +1 @@
-<html><%= @content_for_layout %><%= @variable_for_layout %></html>
\ No newline at end of file
+<html><%= yield %><%= @variable_for_layout %></html>
\ No newline at end of file
diff --git a/actionpack/test/fixtures/layouts/talk_from_action.erb b/actionpack/test/fixtures/layouts/talk_from_action.erb
index 187aab07a2..bf53fdb785 100644
--- a/actionpack/test/fixtures/layouts/talk_from_action.erb
+++ b/actionpack/test/fixtures/layouts/talk_from_action.erb
@@ -1,2 +1,2 @@
-<title><%= @title || @content_for_title %></title>
-<%= @content_for_layout -%>
\ No newline at end of file
+<title><%= @title || yield(:title) %></title>
+<%= yield -%>
\ No newline at end of file
diff --git a/actionpack/test/fixtures/public/.gitignore b/actionpack/test/fixtures/public/.gitignore
new file mode 100644
index 0000000000..0c6759baec
--- /dev/null
+++ b/actionpack/test/fixtures/public/.gitignore
@@ -0,0 +1 @@
+absolute
\ No newline at end of file
diff --git a/actionpack/test/fixtures/public/elsewhere/cools.js b/actionpack/test/fixtures/public/elsewhere/cools.js
new file mode 100644
index 0000000000..6e12fe29c4
--- /dev/null
+++ b/actionpack/test/fixtures/public/elsewhere/cools.js
@@ -0,0 +1 @@
+// cools.js
\ No newline at end of file
diff --git a/actionpack/test/fixtures/public/elsewhere/file.css b/actionpack/test/fixtures/public/elsewhere/file.css
new file mode 100644
index 0000000000..6aea0733b1
--- /dev/null
+++ b/actionpack/test/fixtures/public/elsewhere/file.css
@@ -0,0 +1 @@
+/*file.css*/
\ No newline at end of file
diff --git a/actionpack/test/fixtures/public/javascripts/common.javascript b/actionpack/test/fixtures/public/javascripts/common.javascript
new file mode 100644
index 0000000000..2ae1929056
--- /dev/null
+++ b/actionpack/test/fixtures/public/javascripts/common.javascript
@@ -0,0 +1 @@
+// common.javascript
\ No newline at end of file
diff --git a/actionpack/test/fixtures/public/stylesheets/random.styles b/actionpack/test/fixtures/public/stylesheets/random.styles
new file mode 100644
index 0000000000..d4eeead95c
--- /dev/null
+++ b/actionpack/test/fixtures/public/stylesheets/random.styles
@@ -0,0 +1 @@
+/* random.styles */
\ No newline at end of file
diff --git a/actionpack/test/fixtures/test/_local_inspector.html.erb b/actionpack/test/fixtures/test/_local_inspector.html.erb
index c5a6e3e5bc..e6765c0882 100644
--- a/actionpack/test/fixtures/test/_local_inspector.html.erb
+++ b/actionpack/test/fixtures/test/_local_inspector.html.erb
@@ -1 +1 @@
-<%= local_assigns.keys.map(&:to_s).sort.join(",") -%>
\ No newline at end of file
+<%= local_assigns.keys.map {|k| k.to_s }.sort.join(",") -%>
\ No newline at end of file
diff --git a/actionpack/test/fixtures/test/render_implicit_js_template_without_layout.js.erb b/actionpack/test/fixtures/test/render_implicit_js_template_without_layout.js.erb
new file mode 100644
index 0000000000..892ae5eca2
--- /dev/null
+++ b/actionpack/test/fixtures/test/render_implicit_js_template_without_layout.js.erb
@@ -0,0 +1 @@
+alert('hello');
\ No newline at end of file
diff --git a/actionpack/test/fixtures/test/utf8.html.erb b/actionpack/test/fixtures/test/utf8.html.erb
index 58cd03b439..14fe12debc 100644
--- a/actionpack/test/fixtures/test/utf8.html.erb
+++ b/actionpack/test/fixtures/test/utf8.html.erb
@@ -1,4 +1,3 @@
-<%# encoding: utf-8 -%>
 Русский текст
 <%= "日".encoding %>
 <%= @output_buffer.encoding %>
diff --git a/actionpack/test/fixtures/test/utf8_magic.html.erb b/actionpack/test/fixtures/test/utf8_magic.html.erb
new file mode 100644
index 0000000000..58cd03b439
--- /dev/null
+++ b/actionpack/test/fixtures/test/utf8_magic.html.erb
@@ -0,0 +1,5 @@
+<%# encoding: utf-8 -%>
+Русский текст
+<%= "日".encoding %>
+<%= @output_buffer.encoding %>
+<%= __ENCODING__ %>
diff --git a/actionpack/test/lib/controller/fake_models.rb b/actionpack/test/lib/controller/fake_models.rb
index 0b30c79b10..9e6f14d373 100644
--- a/actionpack/test/lib/controller/fake_models.rb
+++ b/actionpack/test/lib/controller/fake_models.rb
@@ -1,4 +1,8 @@
+require "active_model"
+
 class Customer < Struct.new(:name, :id)
+  extend ActiveModel::Naming
+
   def to_param
     id.to_s
   end
@@ -12,6 +16,8 @@ end
 
 module Quiz
   class Question < Struct.new(:name, :id)
+    extend ActiveModel::Naming
+
     def to_param
       id.to_s
     end
diff --git a/actionpack/test/lib/fixture_template.rb b/actionpack/test/lib/fixture_template.rb
index 59fb6819ed..ee526b5de5 100644
--- a/actionpack/test/lib/fixture_template.rb
+++ b/actionpack/test/lib/fixture_template.rb
@@ -1,6 +1,5 @@
 module ActionView #:nodoc:
-class Template
-  class FixturePath < Path
+  class FixtureResolver < Resolver
     def initialize(hash = {}, options = {})
       super(options)
       @hash = hash
@@ -13,7 +12,7 @@ class Template
           @hash.select { |k,v| k =~ regexp }.each do |path, source|
             templates << Template.new(source, path, *path_to_details(path))
           end
-          templates
+          templates.sort_by {|t| -t.details.values.compact.size }
         end
       end
     end
@@ -22,7 +21,7 @@ class Template
   
     def formats_regexp
       @formats_regexp ||= begin
-        formats = Mime::SET.map { |m| m.symbol }
+        formats = Mime::SET.symbols
         '(?:' + formats.map { |l| "\\.#{Regexp.escape(l.to_s)}" }.join('|') + ')?'
       end
     end
@@ -45,7 +44,7 @@ class Template
           k == :formats ? formats_regexp : ''
         end
       end
-      
+
       %r'^#{Regexp.escape(path)}#{extensions}#{handler_regexp}$'
     end
     
@@ -53,7 +52,7 @@ class Template
     # :api: plugin
     def path_to_details(path)
       # [:erb, :format => :html, :locale => :en, :partial => true/false]
-      if m = path.match(%r'(_)?[\w-]+(\.[\w-]+)*\.(\w+)$')
+      if m = path.match(%r'(_)?[\w-]+((?:\.[\w-]+)*)\.(\w+)$')
         partial = m[1] == '_'
         details = (m[2]||"").split('.').reject { |e| e.empty? }
         handler = Template.handler_class_for_extension(m[3])
@@ -65,40 +64,4 @@ class Template
       end
     end
   end
-  
-  
-  # class FixtureTemplate < Template
-  #   class FixturePath < Template::Path
-  #     def initialize(hash = {})
-  #       @hash = {}
-  #       
-  #       hash.each do |k, v|
-  #         @hash[k.sub(/\.\w+$/, '')] = FixtureTemplate.new(v, k.split("/").last, self)
-  #       end
-  #       
-  #       super("fixtures://root")
-  #     end
-  #     
-  #     def find_template(path)
-  #       @hash[path]
-  #     end
-  #   end
-  #   
-  #   def initialize(body, *args)
-  #     @body = body
-  #     super(*args)
-  #   end
-  #   
-  #   def source
-  #     @body
-  #   end
-  # 
-  # private
-  # 
-  #   def find_full_path(path, load_paths)
-  #     return '/', path
-  #   end
-  # 
-  # end
-end
 end
\ No newline at end of file
diff --git a/actionpack/test/new_base/abstract_unit.rb b/actionpack/test/new_base/abstract_unit.rb
deleted file mode 100644
index e6690d41d9..0000000000
--- a/actionpack/test/new_base/abstract_unit.rb
+++ /dev/null
@@ -1,166 +0,0 @@
-$:.unshift(File.dirname(__FILE__) + '/../../lib')
-$:.unshift(File.dirname(__FILE__) + '/../../../activesupport/lib')
-$:.unshift(File.dirname(__FILE__) + '/../lib')
-
-$:.unshift(File.dirname(__FILE__) + '/../fixtures/helpers')
-$:.unshift(File.dirname(__FILE__) + '/../fixtures/alternate_helpers')
-
-ENV['new_base'] = "true"
-$stderr.puts "Running old tests on new_base"
-
-require 'test/unit'
-require 'active_support'
-
-# TODO : Revisit requiring all the core extensions here
-require 'active_support/core_ext'
-
-require 'active_support/test_case'
-require 'action_controller/abstract'
-require 'action_controller/new_base'
-require 'fixture_template'
-require 'action_controller/testing/process2'
-require 'action_view/test_case'
-require 'action_controller/testing/integration'
-require 'active_support/dependencies'
-
-$tags[:new_base] = true
-
-begin
-  require 'ruby-debug'
-  Debugger.settings[:autoeval] = true
-  Debugger.start
-rescue LoadError
-  # Debugging disabled. `gem install ruby-debug` to enable.
-end
-
-ActiveSupport::Dependencies.hook!
-
-# Show backtraces for deprecated behavior for quicker cleanup.
-ActiveSupport::Deprecation.debug = true
-
-# Register danish language for testing
-I18n.backend.store_translations 'da', {}
-I18n.backend.store_translations 'pt-BR', {}
-ORIGINAL_LOCALES = I18n.available_locales.map {|locale| locale.to_s }.sort
-
-FIXTURE_LOAD_PATH = File.join(File.dirname(__FILE__), '../fixtures')
-
-module ActionController
-  Base.session = {
-  :key         => '_testing_session',
-  :secret      => '8273f16463985e2b3747dc25e30f2528'
-}
-
-  class ActionControllerError < StandardError #:nodoc:
-  end
-
-  class SessionRestoreError < ActionControllerError #:nodoc:
-  end
-
-  class RenderError < ActionControllerError #:nodoc:
-  end
-
-  class RoutingError < ActionControllerError #:nodoc:
-    attr_reader :failures
-    def initialize(message, failures=[])
-      super(message)
-      @failures = failures
-    end
-  end
-
-  class MethodNotAllowed < ActionControllerError #:nodoc:
-    attr_reader :allowed_methods
-
-    def initialize(*allowed_methods)
-      super("Only #{allowed_methods.to_sentence(:locale => :en)} requests are allowed.")
-      @allowed_methods = allowed_methods
-    end
-
-    def allowed_methods_header
-      allowed_methods.map { |method_symbol| method_symbol.to_s.upcase } * ', '
-    end
-
-    def handle_response!(response)
-      response.headers['Allow'] ||= allowed_methods_header
-    end
-  end
-
-  class NotImplemented < MethodNotAllowed #:nodoc:
-  end
-
-  class UnknownController < ActionControllerError #:nodoc:
-  end
-
-  class MissingFile < ActionControllerError #:nodoc:
-  end
-
-  class RenderError < ActionControllerError #:nodoc:
-  end
-
-  class SessionOverflowError < ActionControllerError #:nodoc:
-    DEFAULT_MESSAGE = 'Your session data is larger than the data column in which it is to be stored. You must increase the size of your data column if you intend to store large data.'
-
-    def initialize(message = nil)
-      super(message || DEFAULT_MESSAGE)
-    end
-  end
-
-  class UnknownHttpMethod < ActionControllerError #:nodoc:
-  end
-  
-  class Base
-    include ActionController::Testing
-  end
-  
-  Base.view_paths = FIXTURE_LOAD_PATH
-  
-  class TestCase
-    include TestProcess
-    setup do
-      ActionController::Routing::Routes.draw do |map|
-        map.connect ':controller/:action/:id'
-      end
-    end
-    
-    def assert_template(options = {}, message = nil)
-      validate_request!
-
-      hax = @controller._action_view.instance_variable_get(:@_rendered)
-
-      case options
-      when NilClass, String
-        rendered = (hax[:template] || []).map { |t| t.identifier }
-        msg = build_message(message,
-                "expecting <?> but rendering with <?>",
-                options, rendered.join(', '))
-        assert_block(msg) do
-          if options.nil?
-            hax[:template].blank?
-          else
-            rendered.any? { |t| t.match(options) }
-          end
-        end
-      when Hash
-        if expected_partial = options[:partial]
-          partials = hax[:partials]
-          if expected_count = options[:count]
-            found = partials.detect { |p, _| p.identifier.match(expected_partial) }
-            actual_count = found.nil? ? 0 : found.second
-            msg = build_message(message,
-                    "expecting ? to be rendered ? time(s) but rendered ? time(s)",
-                     expected_partial, expected_count, actual_count)
-            assert(actual_count == expected_count.to_i, msg)
-          else
-            msg = build_message(message,
-                    "expecting partial <?> but action rendered <?>",
-                    options[:partial], partials.keys)
-            assert(partials.keys.any? { |p| p.identifier.match(expected_partial) }, msg)
-          end
-        else
-          assert hax[:partials].empty?,
-            "Expected no partials to be rendered"
-        end
-      end
-    end
-  end
-end
diff --git a/actionpack/test/new_base/content_type_test.rb b/actionpack/test/new_base/content_type_test.rb
index 82b817a5a3..cfc03a3024 100644
--- a/actionpack/test/new_base/content_type_test.rb
+++ b/actionpack/test/new_base/content_type_test.rb
@@ -19,7 +19,7 @@ module ContentType
   class ImpliedController < ActionController::Base
     # Template's mime type is used if no content_type is specified
 
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "content_type/implied/i_am_html_erb.html.erb"         => "Hello world!",
       "content_type/implied/i_am_xml_erb.xml.erb"          => "<xml>Hello world!</xml>",
       "content_type/implied/i_am_html_builder.html.builder" => "xml.p 'Hello'",
diff --git a/actionpack/test/new_base/etag_test.rb b/actionpack/test/new_base/etag_test.rb
index a40d3c936a..3a69e7dac4 100644
--- a/actionpack/test/new_base/etag_test.rb
+++ b/actionpack/test/new_base/etag_test.rb
@@ -2,7 +2,7 @@ require File.join(File.expand_path(File.dirname(__FILE__)), "test_helper")
 
 module Etags
   class BasicController < ActionController::Base
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "etags/basic/base.html.erb" => "Hello from without_layout.html.erb",
       "layouts/etags.html.erb"    => "teh <%= yield %> tagz"
     )]
diff --git a/actionpack/test/new_base/render_action_test.rb b/actionpack/test/new_base/render_action_test.rb
index 4402eadf42..dfa7cc2141 100644
--- a/actionpack/test/new_base/render_action_test.rb
+++ b/actionpack/test/new_base/render_action_test.rb
@@ -3,7 +3,7 @@ require File.join(File.expand_path(File.dirname(__FILE__)), "test_helper")
 module RenderAction
   # This has no layout and it works
   class BasicController < ActionController::Base
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "render_action/basic/hello_world.html.erb" => "Hello world!"
     )]
 
@@ -117,7 +117,7 @@ module RenderActionWithApplicationLayout
   # # ==== Render actions with layouts ====
   class BasicController < ::ApplicationController
     # Set the view path to an application view structure with layouts
-    self.view_paths = self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = self.view_paths = [ActionView::FixtureResolver.new(
       "render_action_with_application_layout/basic/hello_world.html.erb" => "Hello World!",
       "render_action_with_application_layout/basic/hello.html.builder"   => "xml.p 'Omg'",
       "layouts/application.html.erb"                                     => "OHAI <%= yield %> KTHXBAI",
@@ -202,7 +202,7 @@ end
 
 module RenderActionWithControllerLayout
   class BasicController < ActionController::Base
-    self.view_paths = self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = self.view_paths = [ActionView::FixtureResolver.new(
       "render_action_with_controller_layout/basic/hello_world.html.erb" => "Hello World!",
       "layouts/render_action_with_controller_layout/basic.html.erb"     => "With Controller Layout! <%= yield %> KTHXBAI"
     )]
@@ -263,7 +263,7 @@ end
 
 module RenderActionWithBothLayouts
   class BasicController < ActionController::Base
-    self.view_paths = [ActionView::Template::FixturePath.new({
+    self.view_paths = [ActionView::FixtureResolver.new({
       "render_action_with_both_layouts/basic/hello_world.html.erb" => "Hello World!",
       "layouts/application.html.erb"                                => "OHAI <%= yield %> KTHXBAI",
       "layouts/render_action_with_both_layouts/basic.html.erb"      => "With Controller Layout! <%= yield %> KTHXBAI"
diff --git a/actionpack/test/new_base/render_implicit_action_test.rb b/actionpack/test/new_base/render_implicit_action_test.rb
index 2846df48da..fd96e1955f 100644
--- a/actionpack/test/new_base/render_implicit_action_test.rb
+++ b/actionpack/test/new_base/render_implicit_action_test.rb
@@ -2,7 +2,7 @@ require File.join(File.expand_path(File.dirname(__FILE__)), "test_helper")
 
 module RenderImplicitAction
   class SimpleController < ::ApplicationController
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "render_implicit_action/simple/hello_world.html.erb" => "Hello world!",
       "render_implicit_action/simple/hyphen-ated.html.erb" => "Hello hyphen-ated!"
     )]
diff --git a/actionpack/test/new_base/render_layout_test.rb b/actionpack/test/new_base/render_layout_test.rb
index f32c60d683..279b807a5f 100644
--- a/actionpack/test/new_base/render_layout_test.rb
+++ b/actionpack/test/new_base/render_layout_test.rb
@@ -2,7 +2,7 @@ require File.join(File.expand_path(File.dirname(__FILE__)), "test_helper")
 
 module ControllerLayouts
   class ImplicitController < ::ApplicationController
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "layouts/application.html.erb" => "OMG <%= yield %> KTHXBAI",
       "layouts/override.html.erb"    => "Override! <%= yield %>",
       "basic.html.erb"               => "Hello world!",
@@ -26,7 +26,7 @@ module ControllerLayouts
   end
 
   class ImplicitNameController < ::ApplicationController
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "layouts/controller_layouts/implicit_name.html.erb" => "OMGIMPLICIT <%= yield %> KTHXBAI",
       "basic.html.erb" => "Hello world!"
     )]
@@ -68,7 +68,7 @@ module ControllerLayouts
   end
 
   class MismatchFormatController < ::ApplicationController
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "layouts/application.html.erb" => "<html><%= yield %></html>",
       "controller_layouts/mismatch_format/index.js.rjs" => "page[:test].omg",
       "controller_layouts/mismatch_format/implicit.rjs" => "page[:test].omg"      
diff --git a/actionpack/test/new_base/render_partial_test.rb b/actionpack/test/new_base/render_partial_test.rb
index 3a300afe5c..bbb98a0c01 100644
--- a/actionpack/test/new_base/render_partial_test.rb
+++ b/actionpack/test/new_base/render_partial_test.rb
@@ -4,7 +4,7 @@ module RenderPartial
   
   class BasicController < ActionController::Base
     
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "render_partial/basic/_basic.html.erb"    => "OMG!",
       "render_partial/basic/basic.html.erb"      => "<%= @test_unchanged = 'goodbye' %><%= render :partial => 'basic' %><%= @test_unchanged %>"
     )]
diff --git a/actionpack/test/new_base/render_rjs_test.rb b/actionpack/test/new_base/render_rjs_test.rb
new file mode 100644
index 0000000000..bd4c87b3bf
--- /dev/null
+++ b/actionpack/test/new_base/render_rjs_test.rb
@@ -0,0 +1,46 @@
+require File.join(File.expand_path(File.dirname(__FILE__)), "test_helper")
+
+module RenderRjs
+
+  class BasicController < ActionController::Base
+
+    self.view_paths = [ActionView::FixtureResolver.new(
+      "render_rjs/basic/index.js.rjs"          => "page[:customer].replace_html render(:partial => 'customer')",
+      "render_rjs/basic/index_html.js.rjs"     => "page[:customer].replace_html :partial => 'customer'",
+      "render_rjs/basic/_customer.js.erb"      => "JS Partial",
+      "render_rjs/basic/_customer.html.erb"    => "HTML Partial",
+      "render_rjs/basic/index_locale.js.rjs"   => "page[:customer].replace_html :partial => 'customer'",
+      "render_rjs/basic/_customer.da.html.erb" => "Danish HTML Partial",
+      "render_rjs/basic/_customer.da.js.erb"   => "Danish JS Partial"
+    )]
+
+    def index
+      render
+    end
+
+    def index_locale
+      old_locale, I18n.locale = I18n.locale, :da
+    end
+
+  end
+
+  class TestBasic < SimpleRouteCase
+    testing BasicController
+
+    test "rendering a partial in an RJS template should pick the JS template over the HTML one" do
+      get :index
+      assert_response("$(\"customer\").update(\"JS Partial\");")
+    end
+
+    test "replacing an element with a partial in an RJS template should pick the HTML template over the JS one" do
+      get :index_html
+      assert_response("$(\"customer\").update(\"HTML Partial\");")
+    end
+
+    test "replacing an element with a partial in an RJS template with a locale should pick the localed HTML template" do
+      get :index_locale, :format => :js
+      assert_response("$(\"customer\").update(\"Danish HTML Partial\");")
+    end
+
+  end
+end
\ No newline at end of file
diff --git a/actionpack/test/new_base/render_template_test.rb b/actionpack/test/new_base/render_template_test.rb
index face5b7571..94ea38fc7b 100644
--- a/actionpack/test/new_base/render_template_test.rb
+++ b/actionpack/test/new_base/render_template_test.rb
@@ -3,7 +3,7 @@ require File.join(File.expand_path(File.dirname(__FILE__)), "test_helper")
 module RenderTemplate
   class WithoutLayoutController < ActionController::Base
     
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "test/basic.html.erb"      => "Hello from basic.html.erb",
       "shared.html.erb"          => "Elastica",
       "locals.html.erb"          => "The secret is <%= secret %>",
@@ -79,7 +79,7 @@ module RenderTemplate
   end
     
   class WithLayoutController < ::ApplicationController
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "test/basic.html.erb"          => "Hello from basic.html.erb",
       "shared.html.erb"              => "Elastica",
       "layouts/application.html.erb" => "<%= yield %>, I'm here!",
@@ -148,7 +148,7 @@ module RenderTemplate
 
   module Compatibility
     class WithoutLayoutController < ActionController::Base
-      self.view_paths = [ActionView::Template::FixturePath.new(
+      self.view_paths = [ActionView::FixtureResolver.new(
         "test/basic.html.erb" => "Hello from basic.html.erb",
         "shared.html.erb"     => "Elastica"
       )]
diff --git a/actionpack/test/new_base/render_test.rb b/actionpack/test/new_base/render_test.rb
index ed3d50fa0b..5783b4766a 100644
--- a/actionpack/test/new_base/render_test.rb
+++ b/actionpack/test/new_base/render_test.rb
@@ -2,7 +2,7 @@ require File.join(File.expand_path(File.dirname(__FILE__)), "test_helper")
 
 module Render
   class BlankRenderController < ActionController::Base
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "render/blank_render/index.html.erb"                  => "Hello world!",
       "render/blank_render/access_request.html.erb"         => "The request: <%= request.method.to_s.upcase %>",
       "render/blank_render/access_action_name.html.erb"     => "Action Name: <%= action_name %>",
diff --git a/actionpack/test/new_base/render_text_test.rb b/actionpack/test/new_base/render_text_test.rb
index ffc149283b..84f77432c9 100644
--- a/actionpack/test/new_base/render_text_test.rb
+++ b/actionpack/test/new_base/render_text_test.rb
@@ -2,7 +2,7 @@ require File.join(File.expand_path(File.dirname(__FILE__)), "test_helper")
 
 module RenderText
   class SimpleController < ActionController::Base
-    self.view_paths = [ActionView::Template::FixturePath.new]
+    self.view_paths = [ActionView::FixtureResolver.new]
     
     def index
       render :text => "hello david"
@@ -10,7 +10,7 @@ module RenderText
   end
 
   class WithLayoutController < ::ApplicationController
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "layouts/application.html.erb" => "<%= yield %>, I'm here!",
       "layouts/greetings.html.erb"   => "<%= yield %>, I wish thee well.",
       "layouts/ivar.html.erb"        => "<%= yield %>, <%= @ivar %>"
@@ -134,6 +134,4 @@ module RenderText
       assert_status 200
     end
   end
-end
-
-ActionController::Base.app_loaded!
+end
\ No newline at end of file
diff --git a/actionpack/test/new_base/render_xml_test.rb b/actionpack/test/new_base/render_xml_test.rb
index e6c40b1533..a3890ddfb2 100644
--- a/actionpack/test/new_base/render_xml_test.rb
+++ b/actionpack/test/new_base/render_xml_test.rb
@@ -4,7 +4,7 @@ module RenderXml
   
   # This has no layout and it works
   class BasicController < ActionController::Base
-    self.view_paths = [ActionView::Template::FixturePath.new(
+    self.view_paths = [ActionView::FixtureResolver.new(
       "render_xml/basic/with_render_erb" => "Hello world!"
     )]
   end
diff --git a/actionpack/test/new_base/test_helper.rb b/actionpack/test/new_base/test_helper.rb
index d92029df7f..9271b2dd59 100644
--- a/actionpack/test/new_base/test_helper.rb
+++ b/actionpack/test/new_base/test_helper.rb
@@ -16,8 +16,7 @@ rescue LoadError
   # Debugging disabled. `gem install ruby-debug` to enable.
 end
 
-require 'action_controller/abstract'
-require 'action_controller/new_base'
+require 'action_controller'
 require 'pp' # require 'pp' early to prevent hidden_methods from not picking up the pretty-print methods until too late
 
 require 'action_controller/testing/process'
@@ -42,15 +41,6 @@ class Rack::TestCase < ActionController::IntegrationTest
     end
 
     ActionController::Routing.use_controllers!(controllers)
-
-    # Move into a bootloader
-    ActionController::Base.subclasses.each do |klass|
-      klass = klass.constantize
-      next unless klass < AbstractController::Layouts
-      klass.class_eval do
-        _write_layout_method
-      end
-    end
   end
 
   def app
diff --git a/actionpack/test/old_base/abstract_unit.rb b/actionpack/test/old_base/abstract_unit.rb
new file mode 100644
index 0000000000..3301041a41
--- /dev/null
+++ b/actionpack/test/old_base/abstract_unit.rb
@@ -0,0 +1,43 @@
+if ENV['new_base']
+  puts *caller
+  raise 'new_base/abstract_unit already loaded'
+end
+$:.unshift(File.dirname(__FILE__) + '/../lib')
+$:.unshift(File.dirname(__FILE__) + '/../../activesupport/lib')
+$:.unshift(File.dirname(__FILE__) + '/fixtures/helpers')
+$:.unshift(File.dirname(__FILE__) + '/fixtures/alternate_helpers')
+
+require 'rubygems'
+require 'yaml'
+require 'stringio'
+require 'test/unit'
+
+begin
+  require 'ruby-debug'
+  Debugger.settings[:autoeval] = true
+  Debugger.start
+rescue LoadError
+  # Debugging disabled. `gem install ruby-debug` to enable.
+end
+
+require 'action_controller'
+require 'action_controller/testing/process'
+require 'action_view/test_case'
+
+$tags[:old_base] = true
+
+# Show backtraces for deprecated behavior for quicker cleanup.
+ActiveSupport::Deprecation.debug = true
+
+ActionController::Base.logger = nil
+ActionController::Routing::Routes.reload rescue nil
+
+ActionController::Base.session_store = nil
+
+# Register danish language for testing
+I18n.backend.store_translations 'da', {}
+I18n.backend.store_translations 'pt-BR', {}
+ORIGINAL_LOCALES = I18n.available_locales.map {|locale| locale.to_s }.sort
+
+FIXTURE_LOAD_PATH = File.join(File.dirname(__FILE__), 'fixtures')
+ActionController::Base.view_paths = FIXTURE_LOAD_PATH
diff --git a/actionpack/test/template/active_record_helper_test.rb b/actionpack/test/template/active_record_helper_test.rb
index b4b8cbe074..e1be048838 100644
--- a/actionpack/test/template/active_record_helper_test.rb
+++ b/actionpack/test/template/active_record_helper_test.rb
@@ -33,8 +33,8 @@ class ActiveRecordHelperTest < ActionView::TestCase
         ["Author name can't be <em>empty</em>"]
       end
 
-      def on(field)
-        "can't be <em>empty</em>"
+      def [](field)
+        ["can't be <em>empty</em>"]
       end
     end
 
@@ -47,14 +47,14 @@ class ActiveRecordHelperTest < ActionView::TestCase
     @post = Post.new
     def @post.errors
       Class.new {
-        def on(field)
+        def [](field)
           case field.to_s
           when "author_name"
-            "can't be empty"
+            ["can't be empty"]
           when "body"
-            true
+            ['foo']
           else
-            false
+            []
           end
         end
         def empty?() false end
@@ -85,7 +85,7 @@ class ActiveRecordHelperTest < ActionView::TestCase
     @user = User.new
     def @user.errors
       Class.new {
-        def on(field) field == "email" end
+        def [](field) field == "email" ? ['nonempty'] : [] end
         def empty?() false end
         def count() 1 end
         def full_messages() [ "User email can't be empty" ] end
@@ -171,7 +171,7 @@ class ActiveRecordHelperTest < ActionView::TestCase
     @request_forgery_protection_token = 'authenticity_token'
     @form_authenticity_token = '123'
     assert_dom_equal(
-      %(<form action="create" method="post"><div style='margin:0;padding:0'><input type='hidden' name='authenticity_token' value='123' /></div><p><label for="post_title">Title</label><br /><input id="post_title" name="post[title]" size="30" type="text" value="Hello World" /></p>\n<p><label for="post_body">Body</label><br /><div class="fieldWithErrors"><textarea cols="40" id="post_body" name="post[body]" rows="20">Back to the hill and over it again!</textarea></div></p><input name="commit" type="submit" value="Create" /></form>),
+      %(<form action="create" method="post"><div style='margin:0;padding:0;display:inline'><input type='hidden' name='authenticity_token' value='123' /></div><p><label for="post_title">Title</label><br /><input id="post_title" name="post[title]" size="30" type="text" value="Hello World" /></p>\n<p><label for="post_body">Body</label><br /><div class="fieldWithErrors"><textarea cols="40" id="post_body" name="post[body]" rows="20">Back to the hill and over it again!</textarea></div></p><input name="commit" type="submit" value="Create" /></form>),
       form("post")
     )
   end
diff --git a/actionpack/test/template/asset_tag_helper_test.rb b/actionpack/test/template/asset_tag_helper_test.rb
index 76ceff8d6c..e7d70302f8 100644
--- a/actionpack/test/template/asset_tag_helper_test.rb
+++ b/actionpack/test/template/asset_tag_helper_test.rb
@@ -75,22 +75,22 @@ class AssetTagHelperTest < ActionView::TestCase
   }
 
   JavascriptIncludeToTag = {
-    %(javascript_include_tag("xmlhr")) => %(<script src="/javascripts/xmlhr.js" type="text/javascript"></script>),
-    %(javascript_include_tag("xmlhr.js")) => %(<script src="/javascripts/xmlhr.js" type="text/javascript"></script>),
-    %(javascript_include_tag("xmlhr", :lang => "vbscript")) => %(<script lang="vbscript" src="/javascripts/xmlhr.js" type="text/javascript"></script>),
+    %(javascript_include_tag("bank")) => %(<script src="/javascripts/bank.js" type="text/javascript"></script>),
+    %(javascript_include_tag("bank.js")) => %(<script src="/javascripts/bank.js" type="text/javascript"></script>),
+    %(javascript_include_tag("bank", :lang => "vbscript")) => %(<script lang="vbscript" src="/javascripts/bank.js" type="text/javascript"></script>),
     %(javascript_include_tag("common.javascript", "/elsewhere/cools")) => %(<script src="/javascripts/common.javascript" type="text/javascript"></script>\n<script src="/elsewhere/cools.js" type="text/javascript"></script>),
     %(javascript_include_tag(:defaults)) => %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>),
     %(javascript_include_tag(:all)) => %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/javascripts/version.1.0.js" type="text/javascript"></script>),
     %(javascript_include_tag(:all, :recursive => true)) => %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/javascripts/subdir/subdir.js" type="text/javascript"></script>\n<script src="/javascripts/version.1.0.js" type="text/javascript"></script>),
-    %(javascript_include_tag(:defaults, "test")) => %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/test.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>),
-    %(javascript_include_tag("test", :defaults)) => %(<script src="/javascripts/test.js" type="text/javascript"></script>\n<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>)
+    %(javascript_include_tag(:defaults, "bank")) => %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>),
+    %(javascript_include_tag("bank", :defaults)) => %(<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>)
   }
 
   StylePathToTag = {
-    %(stylesheet_path("style")) => %(/stylesheets/style.css),
-    %(stylesheet_path("style.css")) => %(/stylesheets/style.css),
-    %(stylesheet_path('dir/file')) => %(/stylesheets/dir/file.css),
-    %(stylesheet_path('/dir/file.rcss')) => %(/dir/file.rcss)
+    %(stylesheet_path("bank")) => %(/stylesheets/bank.css),
+    %(stylesheet_path("bank.css")) => %(/stylesheets/bank.css),
+    %(stylesheet_path('subdir/subdir')) => %(/stylesheets/subdir/subdir.css),
+    %(stylesheet_path('/subdir/subdir.css')) => %(/subdir/subdir.css)
   }
 
   PathToStyleToTag = {
@@ -101,15 +101,16 @@ class AssetTagHelperTest < ActionView::TestCase
   }
 
   StyleLinkToTag = {
-    %(stylesheet_link_tag("style")) => %(<link href="/stylesheets/style.css" media="screen" rel="stylesheet" type="text/css" />),
-    %(stylesheet_link_tag("style.css")) => %(<link href="/stylesheets/style.css" media="screen" rel="stylesheet" type="text/css" />),
-    %(stylesheet_link_tag("/dir/file")) => %(<link href="/dir/file.css" media="screen" rel="stylesheet" type="text/css" />),
-    %(stylesheet_link_tag("dir/file")) => %(<link href="/stylesheets/dir/file.css" media="screen" rel="stylesheet" type="text/css" />),
-    %(stylesheet_link_tag("style", :media => "all")) => %(<link href="/stylesheets/style.css" media="all" rel="stylesheet" type="text/css" />),
+    %(stylesheet_link_tag("bank")) => %(<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />),
+    %(stylesheet_link_tag("bank.css")) => %(<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />),
+    %(stylesheet_link_tag("/elsewhere/file")) => %(<link href="/elsewhere/file.css" media="screen" rel="stylesheet" type="text/css" />),
+    %(stylesheet_link_tag("subdir/subdir")) => %(<link href="/stylesheets/subdir/subdir.css" media="screen" rel="stylesheet" type="text/css" />),
+    %(stylesheet_link_tag("bank", :media => "all")) => %(<link href="/stylesheets/bank.css" media="all" rel="stylesheet" type="text/css" />),
     %(stylesheet_link_tag(:all)) => %(<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/robber.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/version.1.0.css" media="screen" rel="stylesheet" type="text/css" />),
     %(stylesheet_link_tag(:all, :recursive => true)) => %(<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/robber.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/subdir/subdir.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/version.1.0.css" media="screen" rel="stylesheet" type="text/css" />),
     %(stylesheet_link_tag(:all, :media => "all")) => %(<link href="/stylesheets/bank.css" media="all" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/robber.css" media="all" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/version.1.0.css" media="all" rel="stylesheet" type="text/css" />),
-    %(stylesheet_link_tag("random.styles", "/css/stylish")) => %(<link href="/stylesheets/random.styles" media="screen" rel="stylesheet" type="text/css" />\n<link href="/css/stylish.css" media="screen" rel="stylesheet" type="text/css" />),
+    %(stylesheet_link_tag("random.styles", "/elsewhere/file")) => %(<link href="/stylesheets/random.styles" media="screen" rel="stylesheet" type="text/css" />\n<link href="/elsewhere/file.css" media="screen" rel="stylesheet" type="text/css" />),
+
     %(stylesheet_link_tag("http://www.example.com/styles/style")) => %(<link href="http://www.example.com/styles/style.css" media="screen" rel="stylesheet" type="text/css" />)
   }
 
@@ -137,11 +138,38 @@ class AssetTagHelperTest < ActionView::TestCase
     %(image_tag("error.png", "size" => "45 x 70")) => %(<img alt="Error" src="/images/error.png" />),
     %(image_tag("error.png", "size" => "x")) => %(<img alt="Error" src="/images/error.png" />),
     %(image_tag("http://www.rubyonrails.com/images/rails.png")) => %(<img alt="Rails" src="http://www.rubyonrails.com/images/rails.png" />),
-    %(image_tag("http://www.rubyonrails.com/images/rails.png")) => %(<img alt="Rails" src="http://www.rubyonrails.com/images/rails.png" />),
     %(image_tag("mouse.png", :mouseover => "/images/mouse_over.png")) => %(<img alt="Mouse" onmouseover="this.src='/images/mouse_over.png'" onmouseout="this.src='/images/mouse.png'" src="/images/mouse.png" />),
     %(image_tag("mouse.png", :mouseover => image_path("mouse_over.png"))) => %(<img alt="Mouse" onmouseover="this.src='/images/mouse_over.png'" onmouseout="this.src='/images/mouse.png'" src="/images/mouse.png" />)
   }
 
+  VideoPathToTag = {
+    %(video_path("xml"))          => %(/videos/xml),
+    %(video_path("xml.ogg"))      => %(/videos/xml.ogg),
+    %(video_path("dir/xml.ogg"))  => %(/videos/dir/xml.ogg),
+    %(video_path("/dir/xml.ogg")) => %(/dir/xml.ogg)
+  }
+
+  PathToVideoToTag = {
+    %(path_to_video("xml"))          => %(/videos/xml),
+    %(path_to_video("xml.ogg"))      => %(/videos/xml.ogg),
+    %(path_to_video("dir/xml.ogg"))  => %(/videos/dir/xml.ogg),
+    %(path_to_video("/dir/xml.ogg")) => %(/dir/xml.ogg)
+  }
+
+  VideoLinkToTag = {
+    %(video_tag("xml.ogg")) => %(<video src="/videos/xml.ogg" />),
+    %(video_tag("rss.m4v", :autoplay => true, :controls => true)) => %(<video autoplay="autoplay" controls="controls" src="/videos/rss.m4v" />),
+    %(video_tag("rss.m4v", :autobuffer => true)) => %(<video autobuffer="autobuffer" src="/videos/rss.m4v" />),
+    %(video_tag("gold.m4v", :size => "160x120")) => %(<video height="120" src="/videos/gold.m4v" width="160" />),
+    %(video_tag("gold.m4v", "size" => "320x240")) => %(<video height="240" src="/videos/gold.m4v" width="320" />),
+    %(video_tag("trailer.ogg", :poster => "screenshot.png")) => %(<video poster="/images/screenshot.png" src="/videos/trailer.ogg" />),
+    %(video_tag("error.avi", "size" => "100")) => %(<video src="/videos/error.avi" />),
+    %(video_tag("error.avi", "size" => "100 x 100")) => %(<video src="/videos/error.avi" />),
+    %(video_tag("error.avi", "size" => "x")) => %(<video src="/videos/error.avi" />),
+    %(video_tag("http://media.rubyonrails.org/video/rails_blog_2.mov")) => %(<video src="http://media.rubyonrails.org/video/rails_blog_2.mov" />),
+    %(video_tag(["multiple.ogg", "multiple.avi"])) => %(<video><source src="multiple.ogg" /><source src="multiple.avi" /></video>),
+    %(video_tag(["multiple.ogg", "multiple.avi"], :size => "160x120", :controls => true)) => %(<video controls="controls" height="120" width="160"><source src="multiple.ogg" /><source src="multiple.avi" /></video>)
+  }
 
   def test_auto_discovery_link_tag
     AutoDiscoveryToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
@@ -160,6 +188,20 @@ class AssetTagHelperTest < ActionView::TestCase
     JavascriptIncludeToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
   end
 
+  def test_javascript_include_tag_with_missing_source
+    assert_raise(Errno::ENOENT) {
+      javascript_include_tag('missing_security_guard')
+    }
+
+    assert_raise(Errno::ENOENT) {
+      javascript_include_tag(:defaults, 'missing_security_guard')
+    }
+
+    assert_nothing_raised {
+      javascript_include_tag('http://example.com/css/missing_security_guard')
+    }
+  end
+
   def test_javascript_include_tag_with_given_asset_id
     ENV["RAILS_ASSET_ID"] = "1"
     assert_dom_equal(%(<script src="/javascripts/prototype.js?1" type="text/javascript"></script>\n<script src="/javascripts/effects.js?1" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js?1" type="text/javascript"></script>\n<script src="/javascripts/controls.js?1" type="text/javascript"></script>\n<script src="/javascripts/application.js?1" type="text/javascript"></script>), javascript_include_tag(:defaults))
@@ -167,26 +209,27 @@ class AssetTagHelperTest < ActionView::TestCase
 
   def test_register_javascript_include_default
     ENV["RAILS_ASSET_ID"] = ""
-    ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'slider'
-    assert_dom_equal  %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/slider.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag(:defaults)
+    ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'bank'
+    assert_dom_equal  %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag(:defaults)
   end
 
   def test_register_javascript_include_default_mixed_defaults
     ENV["RAILS_ASSET_ID"] = ""
-    ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'slider'
-    ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'lib1', '/elsewhere/blub/lib2'
-    assert_dom_equal  %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/slider.js" type="text/javascript"></script>\n<script src="/javascripts/lib1.js" type="text/javascript"></script>\n<script src="/elsewhere/blub/lib2.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag(:defaults)
+    ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'bank'
+    ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'robber', '/elsewhere/cools.js'
+    assert_dom_equal  %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/elsewhere/cools.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag(:defaults)
   end
 
   def test_custom_javascript_expansions
-    ActionView::Helpers::AssetTagHelper::register_javascript_expansion :monkey => ["head", "body", "tail"]
-    assert_dom_equal  %(<script src="/javascripts/first.js" type="text/javascript"></script>\n<script src="/javascripts/head.js" type="text/javascript"></script>\n<script src="/javascripts/body.js" type="text/javascript"></script>\n<script src="/javascripts/tail.js" type="text/javascript"></script>\n<script src="/javascripts/last.js" type="text/javascript"></script>), javascript_include_tag('first', :monkey, 'last')
+    ENV["RAILS_ASSET_ID"] = ""
+    ActionView::Helpers::AssetTagHelper::register_javascript_expansion :robbery => ["bank", "robber"]
+    assert_dom_equal  %(<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>), javascript_include_tag('controls', :robbery, 'effects')
   end
 
   def test_custom_javascript_expansions_and_defaults_puts_application_js_at_the_end
     ENV["RAILS_ASSET_ID"] = ""
-    ActionView::Helpers::AssetTagHelper::register_javascript_expansion :monkey => ["head", "body", "tail"]
-    assert_dom_equal  %(<script src="/javascripts/first.js" type="text/javascript"></script>\n<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/head.js" type="text/javascript"></script>\n<script src="/javascripts/body.js" type="text/javascript"></script>\n<script src="/javascripts/tail.js" type="text/javascript"></script>\n<script src="/javascripts/last.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag('first', :defaults, :monkey, 'last')
+    ActionView::Helpers::AssetTagHelper::register_javascript_expansion :robbery => ["bank", "robber"]
+    assert_dom_equal  %(<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag('controls',:defaults, :robbery, 'effects')
   end
 
   def test_custom_javascript_expansions_with_undefined_symbol
@@ -195,6 +238,7 @@ class AssetTagHelperTest < ActionView::TestCase
   end
 
   def test_stylesheet_path
+    ENV["RAILS_ASSET_ID"] = ""
     StylePathToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
   end
 
@@ -207,9 +251,20 @@ class AssetTagHelperTest < ActionView::TestCase
     StyleLinkToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
   end
 
+  def test_stylesheet_link_tag_with_missing_source
+    assert_raise(Errno::ENOENT) {
+      stylesheet_link_tag('missing_security_guard')
+    }
+
+    assert_nothing_raised {
+      stylesheet_link_tag('http://example.com/css/missing_security_guard')
+    }
+  end
+
   def test_custom_stylesheet_expansions
-    ActionView::Helpers::AssetTagHelper::register_stylesheet_expansion :monkey => ["head", "body", "tail"]
-    assert_dom_equal  %(<link href="/stylesheets/first.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/head.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/body.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/tail.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/last.css" media="screen" rel="stylesheet" type="text/css" />), stylesheet_link_tag('first', :monkey, 'last')
+    ENV["RAILS_ASSET_ID"] = ''
+    ActionView::Helpers::AssetTagHelper::register_stylesheet_expansion :robbery => ["bank", "robber"]
+    assert_dom_equal  %(<link href="/stylesheets/version.1.0.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/robber.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/subdir/subdir.css" media="screen" rel="stylesheet" type="text/css" />), stylesheet_link_tag('version.1.0', :robbery, 'subdir/subdir')
   end
 
   def test_custom_stylesheet_expansions_with_undefined_symbol
@@ -244,6 +299,18 @@ class AssetTagHelperTest < ActionView::TestCase
     end
   end
 
+  def test_video_path
+    VideoPathToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
+  end
+
+  def test_path_to_video_alias_for_video_path
+    PathToVideoToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
+  end
+
+  def test_video_tag
+    VideoLinkToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
+  end
+
   def test_timebased_asset_id
     expected_time = File.stat(File.expand_path(File.dirname(__FILE__) + "/../fixtures/public/images/rails.png")).mtime.to_i.to_s
     assert_equal %(<img alt="Rails" src="/images/rails.png?#{expected_time}" />), image_tag("rails.png")
@@ -256,7 +323,7 @@ class AssetTagHelperTest < ActionView::TestCase
     ensure
       ActionController::Base.relative_url_root = ""
   end
-    
+
   def test_should_skip_asset_id_on_complete_url
     assert_equal %(<img alt="Rails" src="http://www.example.com/rails.png" />), image_tag("http://www.example.com/rails.png")
   end
@@ -317,9 +384,17 @@ class AssetTagHelperTest < ActionView::TestCase
 
     assert File.exist?(File.join(ActionView::Helpers::AssetTagHelper::JAVASCRIPTS_DIR, 'money.js'))
 
+    assert_dom_equal(
+      %(<script src="http://a0.example.com/absolute/test.js" type="text/javascript"></script>),
+      javascript_include_tag(:all, :cache => "/absolute/test")
+    )
+
+    assert File.exist?(File.join(ActionView::Helpers::AssetTagHelper::ASSETS_DIR, 'absolute', 'test.js'))
+
   ensure
     FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::JAVASCRIPTS_DIR, 'all.js'))
     FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::JAVASCRIPTS_DIR, 'money.js'))
+    FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::ASSETS_DIR, 'absolute'))
   end
 
   def test_caching_javascript_include_tag_when_caching_on_with_proc_asset_host
@@ -538,8 +613,14 @@ class AssetTagHelperTest < ActionView::TestCase
       stylesheet_link_tag(:all, :cache => true)
     )
 
-    expected = Dir["#{ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR}/*.css"].map { |p| File.mtime(p) }.max
-    assert_equal expected, File.mtime(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
+    files_to_be_joined = Dir["#{ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR}/[^all]*.css"]
+
+    expected_mtime = files_to_be_joined.map { |p| File.mtime(p) }.max
+    assert_equal expected_mtime, File.mtime(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
+
+    bytes_added_by_join = "\n\n".size * files_to_be_joined.size - "\n\n".size
+    expected_size = files_to_be_joined.sum { |p| File.size(p) } + bytes_added_by_join
+    assert_equal expected_size, File.size(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
 
     assert_dom_equal(
       %(<link href="http://a0.example.com/stylesheets/money.css" media="screen" rel="stylesheet" type="text/css" />),
@@ -547,6 +628,66 @@ class AssetTagHelperTest < ActionView::TestCase
     )
 
     assert File.exist?(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'money.css'))
+
+    assert_dom_equal(
+      %(<link href="http://a0.example.com/absolute/test.css" media="screen" rel="stylesheet" type="text/css" />),
+      stylesheet_link_tag(:all, :cache => "/absolute/test")
+    )
+
+    assert File.exist?(File.join(ActionView::Helpers::AssetTagHelper::ASSETS_DIR, 'absolute', 'test.css'))
+  ensure
+    FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
+    FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'money.css'))
+    FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::ASSETS_DIR, 'absolute'))
+  end
+
+  def test_concat_stylesheet_link_tag_when_caching_off
+    ENV["RAILS_ASSET_ID"] = ""
+
+    assert_dom_equal(
+      %(<link href="/stylesheets/all.css" media="screen" rel="stylesheet" type="text/css" />),
+      stylesheet_link_tag(:all, :concat => true)
+    )
+
+    expected = Dir["#{ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR}/*.css"].map { |p| File.mtime(p) }.max
+    assert_equal expected, File.mtime(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
+
+    assert_dom_equal(
+      %(<link href="/stylesheets/money.css" media="screen" rel="stylesheet" type="text/css" />),
+      stylesheet_link_tag(:all, :concat => "money")
+    )
+
+    assert File.exist?(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'money.css'))
+
+    assert_dom_equal(
+      %(<link href="/absolute/test.css" media="screen" rel="stylesheet" type="text/css" />),
+      stylesheet_link_tag(:all, :concat => "/absolute/test")
+    )
+
+    assert File.exist?(File.join(ActionView::Helpers::AssetTagHelper::ASSETS_DIR, 'absolute', 'test.css'))
+  ensure
+    FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
+    FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'money.css'))
+    FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::ASSETS_DIR, 'absolute'))
+  end
+
+  def test_caching_stylesheet_link_tag_when_caching_on_and_missing_css_file
+    ENV["RAILS_ASSET_ID"] = ""
+    ActionController::Base.asset_host = 'http://a0.example.com'
+    ActionController::Base.perform_caching = true
+
+    assert_raise(Errno::ENOENT) {
+      stylesheet_link_tag('bank', 'robber', 'missing_security_guard', :cache => true)
+    }
+
+    assert ! File.exist?(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
+
+    assert_raise(Errno::ENOENT) {
+      stylesheet_link_tag('bank', 'robber', 'missing_security_guard', :cache => "money")
+    }
+
+    assert ! File.exist?(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'money.css'))
+
   ensure
     FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
     FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'money.css'))
@@ -579,8 +720,10 @@ class AssetTagHelperTest < ActionView::TestCase
       stylesheet_link_tag(:all, :cache => true)
     )
 
-    expected = Dir["#{ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR}/*.css"].map { |p| File.mtime(p) }.max
-    assert_equal expected, File.mtime(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
+    files_to_be_joined = Dir["#{ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR}/[^all]*.css"]
+
+    expected_mtime = files_to_be_joined.map { |p| File.mtime(p) }.max
+    assert_equal expected_mtime, File.mtime(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
 
     assert_dom_equal(
       %(<link href="/collaboration/hieraki/stylesheets/money.css" media="screen" rel="stylesheet" type="text/css" />),
diff --git a/actionpack/test/template/atom_feed_helper_test.rb b/actionpack/test/template/atom_feed_helper_test.rb
index bd97caf5d7..6f1179f359 100644
--- a/actionpack/test/template/atom_feed_helper_test.rb
+++ b/actionpack/test/template/atom_feed_helper_test.rb
@@ -1,6 +1,7 @@
 require 'abstract_unit'
 
 Scroll = Struct.new(:id, :to_param, :title, :body, :updated_at, :created_at)
+Scroll.extend ActiveModel::Naming
 
 class ScrollsController < ActionController::Base
   FEEDS = {}
diff --git a/actionpack/test/template/body_parts_test.rb b/actionpack/test/template/body_parts_test.rb
index 4e7aa63f96..bac67c1a7d 100644
--- a/actionpack/test/template/body_parts_test.rb
+++ b/actionpack/test/template/body_parts_test.rb
@@ -4,9 +4,8 @@ class BodyPartsTest < ActionController::TestCase
   RENDERINGS = [Object.new, Object.new, Object.new]
 
   class TestController < ActionController::Base
-    def performed?
-      defined?(ActionController::Http) ? true : super
-    end
+    def performed?() true end
+
     def index
       RENDERINGS.each do |rendering|
         @template.punctuate_body! rendering
@@ -19,11 +18,9 @@ class BodyPartsTest < ActionController::TestCase
 
   def test_body_parts
     get :index
-    pending(:old_base) do
-      # TestProcess buffers body_parts into body
-      # TODO: Rewrite test w/o going through process
-      assert_equal RENDERINGS, @response.body_parts
-    end
+    # TestProcess buffers body_parts into body
+    # TODO: Rewrite test w/o going through process
+    assert_equal RENDERINGS, @response.body_parts
     assert_equal RENDERINGS.join, @response.body
   end
 end
diff --git a/actionpack/test/template/capture_helper_test.rb b/actionpack/test/template/capture_helper_test.rb
new file mode 100644
index 0000000000..2017a18806
--- /dev/null
+++ b/actionpack/test/template/capture_helper_test.rb
@@ -0,0 +1,15 @@
+require 'abstract_unit'
+
+class CaptureHelperTest < ActionView::TestCase
+  def setup
+    super
+    @_content_for = Hash.new {|h,k| h[k] = "" }
+  end
+
+  def test_content_for
+    assert ! content_for?(:title)
+    content_for :title, 'title'
+    assert content_for?(:title)
+    assert ! content_for?(:something_else)
+  end
+end
diff --git a/actionpack/test/template/compiled_templates_test.rb b/actionpack/test/template/compiled_templates_test.rb
index b29b03f99d..9c268aef27 100644
--- a/actionpack/test/template/compiled_templates_test.rb
+++ b/actionpack/test/template/compiled_templates_test.rb
@@ -41,7 +41,7 @@ class CompiledTemplatesTest < Test::Unit::TestCase
     end
 
     def render_without_cache(*args)
-      path = ActionView::Template::FileSystemPathWithFallback.new(FIXTURE_LOAD_PATH)
+      path = ActionView::FileSystemResolverWithFallback.new(FIXTURE_LOAD_PATH)
       view_paths = ActionView::Base.process_view_paths(path)
       ActionView::Base.new(view_paths, {}).render(*args)
     end
diff --git a/actionpack/test/template/erb_util_test.rb b/actionpack/test/template/erb_util_test.rb
index c8c986f218..49f51c50c5 100644
--- a/actionpack/test/template/erb_util_test.rb
+++ b/actionpack/test/template/erb_util_test.rb
@@ -16,7 +16,7 @@ class ErbUtilTest < Test::Unit::TestCase
   end
   
   def test_rest_in_ascii
-    (0..127).to_a.map(&:chr).each do |chr|
+    (0..127).to_a.map {|int| int.chr }.each do |chr|
       next if %w(& " < >).include?(chr)
       assert_equal chr, html_escape(chr)
     end
diff --git a/actionpack/test/template/form_helper_test.rb b/actionpack/test/template/form_helper_test.rb
index 104649deac..515f73c339 100644
--- a/actionpack/test/template/form_helper_test.rb
+++ b/actionpack/test/template/form_helper_test.rb
@@ -21,6 +21,9 @@ silence_warnings do
 
     attr_accessor :comments
     def comments_attributes=(attributes); end
+
+    attr_accessor :tags
+    def tags_attributes=(attributes); end
   end
 
   class Comment
@@ -33,6 +36,50 @@ silence_warnings do
     def name
       @id.nil? ? "new #{self.class.name.downcase}" : "#{self.class.name.downcase} ##{@id}"
     end
+
+    attr_accessor :relevances
+    def relevances_attributes=(attributes); end
+
+  end
+
+  class Tag
+    attr_reader :id
+    attr_reader :post_id
+    def initialize(id = nil, post_id = nil); @id, @post_id = id, post_id end
+    def save; @id = 1; @post_id = 1 end
+    def new_record?; @id.nil? end
+    def to_param; @id; end
+    def value
+      @id.nil? ? "new #{self.class.name.downcase}" : "#{self.class.name.downcase} ##{@id}"
+    end
+
+    attr_accessor :relevances
+    def relevances_attributes=(attributes); end
+
+  end
+
+  class CommentRelevance
+    attr_reader :id
+    attr_reader :comment_id
+    def initialize(id = nil, comment_id = nil); @id, @comment_id = id, comment_id end
+    def save; @id = 1; @comment_id = 1 end
+    def new_record?; @id.nil? end
+    def to_param; @id; end
+    def value
+      @id.nil? ? "new #{self.class.name.downcase}" : "#{self.class.name.downcase} ##{@id}"
+    end
+  end
+
+  class TagRelevance
+    attr_reader :id
+    attr_reader :tag_id
+    def initialize(id = nil, tag_id = nil); @id, @tag_id = id, tag_id end
+    def save; @id = 1; @tag_id = 1 end
+    def new_record?; @id.nil? end
+    def to_param; @id; end
+    def value
+      @id.nil? ? "new #{self.class.name.downcase}" : "#{self.class.name.downcase} ##{@id}"
+    end
   end
 
   class Author < Comment
@@ -50,7 +97,7 @@ class FormHelperTest < ActionView::TestCase
     @comment = Comment.new
     def @post.errors()
       Class.new{
-        def on(field); "can't be empty" if field == "author_name"; end
+        def [](field); field == "author_name" ? ["can't be empty"] : [] end
         def empty?() false end
         def count() 1 end
         def full_messages() [ "Author name can't be empty" ] end
@@ -99,6 +146,11 @@ class FormHelperTest < ActionView::TestCase
     assert_dom_equal('<label for="my_for">Title</label>', label(:post, :title, nil, "for" => "my_for"))
   end
 
+  def test_label_for_radio_buttons_with_value
+    assert_dom_equal('<label for="post_title_great_title">The title goes here</label>', label("post", "title", "The title goes here", :value => "great_title"))
+    assert_dom_equal('<label for="post_title_great_title">The title goes here</label>', label("post", "title", "The title goes here", :value => "great title"))
+  end
+
   def test_text_field
     assert_dom_equal(
       '<input id="post_title" name="post[title]" size="30" type="text" value="Hello World" />', text_field("post", "title")
@@ -378,7 +430,7 @@ class FormHelperTest < ActionView::TestCase
 
     expected =
       "<form action='http://www.example.com' id='create-post' method='post'>" +
-      "<div style='margin:0;padding:0'><input name='_method' type='hidden' value='put' /></div>" +
+      "<div style='margin:0;padding:0;display:inline'><input name='_method' type='hidden' value='put' /></div>" +
       "<input name='post[title]' size='30' type='text' id='post_title' value='Hello World' />" +
       "<textarea name='post[body]' id='post_body' rows='20' cols='40'>Back to the hill and over it again!</textarea>" +
       "<input name='post[secret]' type='hidden' value='0' />" +
@@ -532,6 +584,20 @@ class FormHelperTest < ActionView::TestCase
     assert_dom_equal expected, output_buffer
   end
 
+  def test_nested_fields_for_with_index_radio_button
+    form_for(:post, @post) do |f|
+      f.fields_for(:comment, @post, :index => 5) do |c|
+        concat c.radio_button(:title, "hello")
+      end
+    end
+
+    expected = "<form action='http://www.example.com' method='post'>" +
+               "<input name='post[comment][5][title]' type='radio' id='post_comment_5_title_hello' value='hello' />" +
+               "</form>"
+
+    assert_dom_equal expected, output_buffer
+  end
+
   def test_nested_fields_for_with_auto_index_on_both
     form_for("post[]", @post) do |f|
       f.fields_for("comment[]", @post) do |c|
@@ -721,6 +787,51 @@ class FormHelperTest < ActionView::TestCase
     assert_dom_equal expected, output_buffer
   end
 
+  def test_nested_fields_uses_unique_indices_for_different_collection_associations
+    @post.comments = [Comment.new(321)]
+    @post.tags = [Tag.new(123), Tag.new(456)]
+    @post.comments[0].relevances = []
+    @post.tags[0].relevances = []
+    @post.tags[1].relevances = []
+    form_for(:post, @post) do |f|
+      f.fields_for(:comments, @post.comments[0]) do |cf|
+        concat cf.text_field(:name)
+        cf.fields_for(:relevances, CommentRelevance.new(314)) do |crf|
+          concat crf.text_field(:value)
+        end
+      end
+      f.fields_for(:tags, @post.tags[0]) do |tf|
+        concat tf.text_field(:value)
+        tf.fields_for(:relevances, TagRelevance.new(3141)) do |trf|
+          concat trf.text_field(:value)
+        end
+      end
+      f.fields_for('tags', @post.tags[1]) do |tf|
+        concat tf.text_field(:value)
+        tf.fields_for(:relevances, TagRelevance.new(31415)) do |trf|
+          concat trf.text_field(:value)
+        end
+      end
+    end
+
+    expected = '<form action="http://www.example.com" method="post">' +
+               '<input id="post_comments_attributes_0_id" name="post[comments_attributes][0][id]" type="hidden" value="321" />' +
+               '<input id="post_comments_attributes_0_name" name="post[comments_attributes][0][name]" size="30" type="text" value="comment #321" />' +
+               '<input id="post_comments_attributes_0_relevances_attributes_0_id" name="post[comments_attributes][0][relevances_attributes][0][id]" type="hidden" value="314" />' +
+               '<input id="post_comments_attributes_0_relevances_attributes_0_value" name="post[comments_attributes][0][relevances_attributes][0][value]" size="30" type="text" value="commentrelevance #314" />' +
+               '<input id="post_tags_attributes_0_id" name="post[tags_attributes][0][id]" type="hidden" value="123" />' +
+               '<input id="post_tags_attributes_0_value" name="post[tags_attributes][0][value]" size="30" type="text" value="tag #123" />' +
+               '<input id="post_tags_attributes_0_relevances_attributes_0_id" name="post[tags_attributes][0][relevances_attributes][0][id]" type="hidden" value="3141" />' +
+               '<input id="post_tags_attributes_0_relevances_attributes_0_value" name="post[tags_attributes][0][relevances_attributes][0][value]" size="30" type="text" value="tagrelevance #3141" />' +
+               '<input id="post_tags_attributes_1_id" name="post[tags_attributes][1][id]" type="hidden" value="456" />' +
+               '<input id="post_tags_attributes_1_value" name="post[tags_attributes][1][value]" size="30" type="text" value="tag #456" />' +
+               '<input id="post_tags_attributes_1_relevances_attributes_0_id" name="post[tags_attributes][1][relevances_attributes][0][id]" type="hidden" value="31415" />' +
+               '<input id="post_tags_attributes_1_relevances_attributes_0_value" name="post[tags_attributes][1][relevances_attributes][0][value]" size="30" type="text" value="tagrelevance #31415" />' +
+               '</form>'
+
+    assert_dom_equal expected, output_buffer
+  end
+
   def test_fields_for
     fields_for(:post, @post) do |f|
       concat f.text_field(:title)
@@ -1073,7 +1184,7 @@ class FormHelperTest < ActionView::TestCase
   def test_form_for_with_existing_object
     form_for(@post) do |f| end
 
-    expected = "<form action=\"/posts/123\" class=\"edit_post\" id=\"edit_post_123\" method=\"post\"><div style=\"margin:0;padding:0\"><input name=\"_method\" type=\"hidden\" value=\"put\" /></div></form>"
+    expected = "<form action=\"/posts/123\" class=\"edit_post\" id=\"edit_post_123\" method=\"post\"><div style=\"margin:0;padding:0;display:inline\"><input name=\"_method\" type=\"hidden\" value=\"put\" /></div></form>"
     assert_equal expected, output_buffer
   end
 
@@ -1094,7 +1205,7 @@ class FormHelperTest < ActionView::TestCase
 
     form_for([@post, @comment]) {}
 
-    expected = %(<form action="#{comment_path(@post, @comment)}" class="edit_comment" id="edit_comment_1" method="post"><div style="margin:0;padding:0"><input name="_method" type="hidden" value="put" /></div></form>)
+    expected = %(<form action="#{comment_path(@post, @comment)}" class="edit_comment" id="edit_comment_1" method="post"><div style="margin:0;padding:0;display:inline"><input name="_method" type="hidden" value="put" /></div></form>)
     assert_dom_equal expected, output_buffer
   end
 
@@ -1113,7 +1224,7 @@ class FormHelperTest < ActionView::TestCase
 
     form_for([:admin, @post, @comment]) {}
 
-    expected = %(<form action="#{admin_comment_path(@post, @comment)}" class="edit_comment" id="edit_comment_1" method="post"><div style="margin:0;padding:0"><input name="_method" type="hidden" value="put" /></div></form>)
+    expected = %(<form action="#{admin_comment_path(@post, @comment)}" class="edit_comment" id="edit_comment_1" method="post"><div style="margin:0;padding:0;display:inline"><input name="_method" type="hidden" value="put" /></div></form>)
     assert_dom_equal expected, output_buffer
   end
 
@@ -1129,7 +1240,7 @@ class FormHelperTest < ActionView::TestCase
   def test_form_for_with_existing_object_and_custom_url
     form_for(@post, :url => "/super_posts") do |f| end
 
-    expected = "<form action=\"/super_posts\" class=\"edit_post\" id=\"edit_post_123\" method=\"post\"><div style=\"margin:0;padding:0\"><input name=\"_method\" type=\"hidden\" value=\"put\" /></div></form>"
+    expected = "<form action=\"/super_posts\" class=\"edit_post\" id=\"edit_post_123\" method=\"post\"><div style=\"margin:0;padding:0;display:inline\"><input name=\"_method\" type=\"hidden\" value=\"put\" /></div></form>"
     assert_equal expected, output_buffer
   end
 
@@ -1174,4 +1285,4 @@ class FormHelperTest < ActionView::TestCase
     def protect_against_forgery?
       false
     end
-end
\ No newline at end of file
+end
diff --git a/actionpack/test/template/form_tag_helper_test.rb b/actionpack/test/template/form_tag_helper_test.rb
index 5ca4d4d6ea..79004264fd 100644
--- a/actionpack/test/template/form_tag_helper_test.rb
+++ b/actionpack/test/template/form_tag_helper_test.rb
@@ -40,13 +40,13 @@ class FormTagHelperTest < ActionView::TestCase
 
   def test_form_tag_with_method_put
     actual = form_tag({}, { :method => :put })
-    expected = %(<form action="http://www.example.com" method="post"><div style='margin:0;padding:0'><input type="hidden" name="_method" value="put" /></div>)
+    expected = %(<form action="http://www.example.com" method="post"><div style='margin:0;padding:0;display:inline'><input type="hidden" name="_method" value="put" /></div>)
     assert_dom_equal expected, actual
   end
 
   def test_form_tag_with_method_delete
     actual = form_tag({}, { :method => :delete })
-    expected = %(<form action="http://www.example.com" method="post"><div style='margin:0;padding:0'><input type="hidden" name="_method" value="delete" /></div>)
+    expected = %(<form action="http://www.example.com" method="post"><div style='margin:0;padding:0;display:inline'><input type="hidden" name="_method" value="delete" /></div>)
     assert_dom_equal expected, actual
   end
 
@@ -62,7 +62,7 @@ class FormTagHelperTest < ActionView::TestCase
     __in_erb_template = ''
     form_tag("http://example.com", :method => :put) { concat "Hello world!" }
 
-    expected = %(<form action="http://example.com" method="post"><div style='margin:0;padding:0'><input type="hidden" name="_method" value="put" /></div>Hello world!</form>)
+    expected = %(<form action="http://example.com" method="post"><div style='margin:0;padding:0;display:inline'><input type="hidden" name="_method" value="put" /></div>Hello world!</form>)
     assert_dom_equal expected, output_buffer
   end
 
@@ -154,6 +154,23 @@ class FormTagHelperTest < ActionView::TestCase
     assert_dom_equal expected, actual
   end
 
+  def test_text_area_tag_id_sanitized
+    input_elem = root_elem(text_area_tag("item[][description]"))
+    assert_match VALID_HTML_ID, input_elem['id']
+  end
+
+  def test_text_area_tag_escape_content
+    actual = text_area_tag "body", "<b>hello world</b>", :size => "20x40"
+    expected = %(<textarea cols="20" id="body" name="body" rows="40">&lt;b&gt;hello world&lt;/b&gt;</textarea>)
+    assert_dom_equal expected, actual
+  end
+
+  def test_text_area_tag_unescaped_content
+    actual = text_area_tag "body", "<b>hello world</b>", :size => "20x40", :escape => false
+    expected = %(<textarea cols="20" id="body" name="body" rows="40"><b>hello world</b></textarea>)
+    assert_dom_equal expected, actual
+  end
+
   def test_text_field_tag
     actual = text_field_tag "title", "Hello!"
     expected = %(<input id="title" name="title" type="text" value="Hello!" />)
diff --git a/actionpack/test/template/number_helper_test.rb b/actionpack/test/template/number_helper_test.rb
index b6542ef29d..57b740032e 100644
--- a/actionpack/test/template/number_helper_test.rb
+++ b/actionpack/test/template/number_helper_test.rb
@@ -3,6 +3,22 @@ require 'abstract_unit'
 class NumberHelperTest < ActionView::TestCase
   tests ActionView::Helpers::NumberHelper
 
+  def kilobytes(number)
+    number * 1024
+  end
+
+  def megabytes(number)
+    kilobytes(number) * 1024
+  end
+
+  def gigabytes(number)
+    megabytes(number) * 1024
+  end
+
+  def terabytes(number)
+    gigabytes(number) * 1024
+  end
+
   def test_number_to_phone
     assert_equal("555-1234", number_to_phone(5551234))
     assert_equal("800-555-1212", number_to_phone(8005551212))
@@ -96,16 +112,16 @@ class NumberHelperTest < ActionView::TestCase
     assert_equal '1.2 MB',    number_to_human_size(1234567)
     assert_equal '1.1 GB',    number_to_human_size(1234567890)
     assert_equal '1.1 TB',    number_to_human_size(1234567890123)
-    assert_equal '1025 TB',   number_to_human_size(1025.terabytes)
-    assert_equal '444 KB',    number_to_human_size(444.kilobytes)
-    assert_equal '1023 MB',   number_to_human_size(1023.megabytes)
-    assert_equal '3 TB',      number_to_human_size(3.terabytes)
+    assert_equal '1025 TB',   number_to_human_size(terabytes(1025))
+    assert_equal '444 KB',    number_to_human_size(kilobytes(444))
+    assert_equal '1023 MB',   number_to_human_size(megabytes(1023))
+    assert_equal '3 TB',      number_to_human_size(terabytes(3))
     assert_equal '1.18 MB',   number_to_human_size(1234567, :precision => 2)
     assert_equal '3 Bytes',   number_to_human_size(3.14159265, :precision => 4)
     assert_equal("123 Bytes", number_to_human_size("123"))
-    assert_equal '1.01 KB',   number_to_human_size(1.0123.kilobytes, :precision => 2)
-    assert_equal '1.01 KB',   number_to_human_size(1.0100.kilobytes, :precision => 4)
-    assert_equal '10 KB',   number_to_human_size(10.000.kilobytes, :precision => 4)
+    assert_equal '1.01 KB',   number_to_human_size(kilobytes(1.0123), :precision => 2)
+    assert_equal '1.01 KB',   number_to_human_size(kilobytes(1.0100), :precision => 4)
+    assert_equal '10 KB',   number_to_human_size(kilobytes(10.000), :precision => 4)
     assert_equal '1 Byte',   number_to_human_size(1.1)
     assert_equal '10 Bytes', number_to_human_size(10)
     #assert_nil number_to_human_size('x') # fails due to API consolidation
@@ -115,9 +131,9 @@ class NumberHelperTest < ActionView::TestCase
   def test_number_to_human_size_with_options_hash
     assert_equal '1.18 MB',   number_to_human_size(1234567, :precision => 2)
     assert_equal '3 Bytes',   number_to_human_size(3.14159265, :precision => 4)
-    assert_equal '1.01 KB',   number_to_human_size(1.0123.kilobytes, :precision => 2)
-    assert_equal '1.01 KB',   number_to_human_size(1.0100.kilobytes, :precision => 4)
-    assert_equal '10 KB',     number_to_human_size(10.000.kilobytes, :precision => 4)
+    assert_equal '1.01 KB',   number_to_human_size(kilobytes(1.0123), :precision => 2)
+    assert_equal '1.01 KB',   number_to_human_size(kilobytes(1.0100), :precision => 4)
+    assert_equal '10 KB',     number_to_human_size(kilobytes(10.000), :precision => 4)
     assert_equal '1 TB', number_to_human_size(1234567890123, :precision => 0)
     assert_equal '500 MB', number_to_human_size(524288000, :precision=>0)
     assert_equal '40 KB', number_to_human_size(41010, :precision => 0)
@@ -125,8 +141,8 @@ class NumberHelperTest < ActionView::TestCase
   end
 
   def test_number_to_human_size_with_custom_delimiter_and_separator
-    assert_equal '1,01 KB',     number_to_human_size(1.0123.kilobytes, :precision => 2, :separator => ',')
-    assert_equal '1,01 KB',     number_to_human_size(1.0100.kilobytes, :precision => 4, :separator => ',')
-    assert_equal '1.000,1 TB',  number_to_human_size(1000.1.terabytes, :delimiter => '.', :separator => ',')
+    assert_equal '1,01 KB',     number_to_human_size(kilobytes(1.0123), :precision => 2, :separator => ',')
+    assert_equal '1,01 KB',     number_to_human_size(kilobytes(1.0100), :precision => 4, :separator => ',')
+    assert_equal '1.000,1 TB',  number_to_human_size(terabytes(1000.1), :delimiter => '.', :separator => ',')
   end
 end
diff --git a/actionpack/test/template/prototype_helper_test.rb b/actionpack/test/template/prototype_helper_test.rb
index f9f418aec9..a7a1bc99f3 100644
--- a/actionpack/test/template/prototype_helper_test.rb
+++ b/actionpack/test/template/prototype_helper_test.rb
@@ -1,8 +1,10 @@
 require 'abstract_unit'
 
 Bunny = Struct.new(:Bunny, :id)
+Bunny.extend ActiveModel::Naming
 
 class Author
+  extend ActiveModel::Naming
   attr_reader :id
   def save; @id = 1 end
   def new_record?; @id.nil? end
@@ -12,6 +14,7 @@ class Author
 end
 
 class Article
+  extend ActiveModel::Naming
   attr_reader :id
   attr_reader :author_id
   def save; @id = 1; @author_id = 1 end
@@ -133,7 +136,7 @@ class PrototypeHelperTest < PrototypeHelperBaseTest
   end
 
   def test_form_remote_tag_with_method
-    assert_dom_equal %(<form action=\"http://www.example.com/fast\" method=\"post\" onsubmit=\"new Ajax.Updater('glass_of_beer', 'http://www.example.com/fast', {asynchronous:true, evalScripts:true, parameters:Form.serialize(this)}); return false;\"><div style='margin:0;padding:0'><input name='_method' type='hidden' value='put' /></div>),
+    assert_dom_equal %(<form action=\"http://www.example.com/fast\" method=\"post\" onsubmit=\"new Ajax.Updater('glass_of_beer', 'http://www.example.com/fast', {asynchronous:true, evalScripts:true, parameters:Form.serialize(this)}); return false;\"><div style='margin:0;padding:0;display:inline'><input name='_method' type='hidden' value='put' /></div>),
       form_remote_tag(:update => "glass_of_beer", :url => { :action => :fast  }, :html => { :method => :put })
   end
 
@@ -161,7 +164,7 @@ class PrototypeHelperTest < PrototypeHelperBaseTest
     @record.save
     remote_form_for(@record) {}
 
-    expected = %(<form action='#{author_path(@record)}' id='edit_author_1' method='post' onsubmit="new Ajax.Request('#{author_path(@record)}', {asynchronous:true, evalScripts:true, parameters:Form.serialize(this)}); return false;" class='edit_author'><div style='margin:0;padding:0'><input name='_method' type='hidden' value='put' /></div></form>)
+    expected = %(<form action='#{author_path(@record)}' id='edit_author_1' method='post' onsubmit="new Ajax.Request('#{author_path(@record)}', {asynchronous:true, evalScripts:true, parameters:Form.serialize(this)}); return false;" class='edit_author'><div style='margin:0;padding:0;display:inline'><input name='_method' type='hidden' value='put' /></div></form>)
     assert_dom_equal expected, output_buffer
   end
 
@@ -177,7 +180,7 @@ class PrototypeHelperTest < PrototypeHelperBaseTest
     @article.save
     remote_form_for([@author, @article]) {}
 
-    expected = %(<form action='#{author_article_path(@author, @article)}' id='edit_article_1' method='post' onsubmit="new Ajax.Request('#{author_article_path(@author, @article)}', {asynchronous:true, evalScripts:true, parameters:Form.serialize(this)}); return false;" class='edit_article'><div style='margin:0;padding:0'><input name='_method' type='hidden' value='put' /></div></form>)
+    expected = %(<form action='#{author_article_path(@author, @article)}' id='edit_article_1' method='post' onsubmit="new Ajax.Request('#{author_article_path(@author, @article)}', {asynchronous:true, evalScripts:true, parameters:Form.serialize(this)}); return false;" class='edit_article'><div style='margin:0;padding:0;display:inline'><input name='_method' type='hidden' value='put' /></div></form>)
     assert_dom_equal expected, output_buffer
   end
 
diff --git a/actionpack/test/template/record_tag_helper_test.rb b/actionpack/test/template/record_tag_helper_test.rb
index 809ed6d6af..5b840d123b 100644
--- a/actionpack/test/template/record_tag_helper_test.rb
+++ b/actionpack/test/template/record_tag_helper_test.rb
@@ -1,6 +1,7 @@
 require 'abstract_unit'
 
 class Post
+  extend ActiveModel::Naming
   def id
      45
   end
diff --git a/actionpack/test/template/render_test.rb b/actionpack/test/template/render_test.rb
index a56d7aee75..7f30ae88a1 100644
--- a/actionpack/test/template/render_test.rb
+++ b/actionpack/test/template/render_test.rb
@@ -13,7 +13,7 @@ module RenderTestCases
     I18n.backend.store_translations 'pt-BR', {}
 
     # Ensure original are still the same since we are reindexing view paths
-    assert_equal ORIGINAL_LOCALES, I18n.available_locales.map(&:to_s).sort
+    assert_equal ORIGINAL_LOCALES, I18n.available_locales.map {|l| l.to_s }.sort
   end
 
   def test_render_file
@@ -46,29 +46,6 @@ module RenderTestCases
     I18n.locale = old_locale
   end
 
-  def test_render_implicit_html_template_from_xhr_request
-    old_format = @view.formats
-    pending do
-      @view.formats = [:js]
-      assert_equal "Hello HTML!", @view.render(:file => "test/render_implicit_html_template_from_xhr_request")
-    end
-  ensure
-    @view.formats = old_format
-  end
-
-  def test_render_implicit_html_template_from_xhr_request_with_localization
-    old_locale = I18n.locale
-    old_format = @view.formats
-    pending do
-      I18n.locale = :da
-      @view.formats = [:js]
-      assert_equal "Hey HTML!\n", @view.render(:file => "test/render_implicit_html_template_from_xhr_request")
-    end
-  ensure
-    I18n.locale = old_locale
-    @view.formats = old_format
-  end
-
   def test_render_file_at_top_level
     assert_equal 'Elastica', @view.render(:file => '/shared')
   end
@@ -247,10 +224,27 @@ module RenderTestCases
   end
 
   if '1.9'.respond_to?(:force_encoding)
-    def test_render_utf8_template
-      result = @view.render(:file => "test/utf8.html.erb", :layouts => "layouts/yield")
-      assert_equal "Русский текст\nUTF-8\nUTF-8\nUTF-8\n", result
-      assert_equal Encoding::UTF_8, result.encoding
+    def test_render_utf8_template_with_magic_comment
+      with_external_encoding Encoding::ASCII_8BIT do
+        result = @view.render(:file => "test/utf8_magic.html.erb", :layouts => "layouts/yield")
+        assert_equal "Русский текст\nUTF-8\nUTF-8\nUTF-8\n", result
+        assert_equal Encoding::UTF_8, result.encoding
+      end
+    end
+
+    def test_render_utf8_template_with_default_external_encoding
+      with_external_encoding Encoding::UTF_8 do
+        result = @view.render(:file => "test/utf8.html.erb", :layouts => "layouts/yield")
+        assert_equal "Русский текст\nUTF-8\nUTF-8\nUTF-8\n", result
+        assert_equal Encoding::UTF_8, result.encoding
+      end
+    end
+
+    def with_external_encoding(encoding)
+      old, Encoding.default_external = Encoding.default_external, encoding
+      yield
+    ensure
+      Encoding.default_external = old
     end
   end
 end
@@ -261,7 +255,7 @@ class CachedViewRenderTest < ActiveSupport::TestCase
   # Ensure view path cache is primed
   def setup
     view_paths = ActionController::Base.view_paths
-    assert_equal ActionView::Template::FileSystemPathWithFallback, view_paths.first.class
+    assert_equal ActionView::FileSystemResolverWithFallback, view_paths.first.class
     setup_view(view_paths)
   end
 end
@@ -272,9 +266,9 @@ class LazyViewRenderTest < ActiveSupport::TestCase
   # Test the same thing as above, but make sure the view path
   # is not eager loaded
   def setup
-    path = ActionView::Template::FileSystemPathWithFallback.new(FIXTURE_LOAD_PATH)
+    path = ActionView::FileSystemResolverWithFallback.new(FIXTURE_LOAD_PATH)
     view_paths = ActionView::Base.process_view_paths(path)
-    assert_equal ActionView::Template::FileSystemPathWithFallback, view_paths.first.class
+    assert_equal ActionView::FileSystemResolverWithFallback, view_paths.first.class
     setup_view(view_paths)
   end
 end
diff --git a/actionpack/test/template/test_test.rb b/actionpack/test/template/test_test.rb
index dd07a6d438..f32d0b3d42 100644
--- a/actionpack/test/template/test_test.rb
+++ b/actionpack/test/template/test_test.rb
@@ -41,6 +41,7 @@ class PeopleHelperTest < ActionView::TestCase
 
   def test_link_to_person
     person = mock(:name => "David")
+    person.class.extend ActiveModel::Naming
     expects(:mocha_mock_path).with(person).returns("/people/1")
     assert_equal '<a href="/people/1">David</a>', link_to_person(person)
   end
diff --git a/actionpack/test/template/url_helper_test.rb b/actionpack/test/template/url_helper_test.rb
index f3d2f87b4a..f0364fd660 100644
--- a/actionpack/test/template/url_helper_test.rb
+++ b/actionpack/test/template/url_helper_test.rb
@@ -494,6 +494,7 @@ class LinkToUnlessCurrentWithControllerTest < ActionView::TestCase
 end
 
 class Workshop
+  extend ActiveModel::Naming
   attr_accessor :id, :new_record
 
   def initialize(id, new_record)
@@ -510,6 +511,7 @@ class Workshop
 end
 
 class Session
+  extend ActiveModel::Naming
   attr_accessor :id, :workshop_id, :new_record
 
   def initialize(id, new_record)