Merge branch 'master' into wip_abstract_controller

Conflicts:
	actionpack/lib/action_controller/abstract/callbacks.rb
	actionpack/lib/action_controller/abstract/renderer.rb
	actionpack/lib/action_controller/base/base.rb
	actionpack/lib/action_controller/dispatch/dispatcher.rb
	actionpack/lib/action_controller/routing/route_set.rb
	actionpack/lib/action_controller/testing/process.rb
	actionpack/test/abstract_controller/layouts_test.rb
	actionpack/test/controller/filters_test.rb
	actionpack/test/controller/helper_test.rb
	actionpack/test/controller/render_test.rb
	actionpack/test/new_base/test_helper.rb

59 files changed, 607 insertions, 732 deletions

diff --git a/actionpack/lib/action_controller.rb b/actionpack/lib/action_controller.rb
index aee6b9dc9f..ab78bc9222 100644
--- a/actionpack/lib/action_controller.rb
+++ b/actionpack/lib/action_controller.rb
@@ -60,7 +60,7 @@ module ActionController
   autoload :Redirector, 'action_controller/base/redirect'
   autoload :Renderer, 'action_controller/base/render'
   autoload :RequestForgeryProtection, 'action_controller/base/request_forgery_protection'
-  autoload :Rescue, 'action_controller/dispatch/rescue'
+  autoload :Rescue, 'action_controller/base/rescue'
   autoload :Resources, 'action_controller/routing/resources'
   autoload :Responder, 'action_controller/base/responder'
   autoload :Routing, 'action_controller/routing'
diff --git a/actionpack/lib/action_controller/abstract/callbacks.rb b/actionpack/lib/action_controller/abstract/callbacks.rb
index f3210a040a..6e15b3e81b 100644
--- a/actionpack/lib/action_controller/abstract/callbacks.rb
+++ b/actionpack/lib/action_controller/abstract/callbacks.rb
@@ -1,10 +1,13 @@
 module AbstractController
   module Callbacks
-    setup do
-      include ActiveSupport::NewCallbacks
-      define_callbacks :process_action, "response_body"
+    extend ActiveSupport::DependencyModule
+
+    depends_on ActiveSupport::NewCallbacks
+
+    included do
+      define_callbacks :process_action
     end
-    
+
     def process_action
       _run_process_action_callbacks(action_name) do
         super
diff --git a/actionpack/lib/action_controller/abstract/helpers.rb b/actionpack/lib/action_controller/abstract/helpers.rb
index 370e3a79ee..968d3080c1 100644
--- a/actionpack/lib/action_controller/abstract/helpers.rb
+++ b/actionpack/lib/action_controller/abstract/helpers.rb
@@ -1,8 +1,10 @@
 module AbstractController
   module Helpers
+    extend ActiveSupport::DependencyModule
+
     depends_on Renderer
-    
-    setup do
+
+    included do
       extlib_inheritable_accessor :master_helper_module
       self.master_helper_module = Module.new
     end
diff --git a/actionpack/lib/action_controller/abstract/layouts.rb b/actionpack/lib/action_controller/abstract/layouts.rb
index eb3b73289d..e48b8b2b4b 100644
--- a/actionpack/lib/action_controller/abstract/layouts.rb
+++ b/actionpack/lib/action_controller/abstract/layouts.rb
@@ -1,8 +1,9 @@
 module AbstractController
   module Layouts
-    
+    extend ActiveSupport::DependencyModule
+
     depends_on Renderer
-        
+
     module ClassMethods
       def layout(layout)
         unless [String, Symbol, FalseClass, NilClass].include?(layout.class)
diff --git a/actionpack/lib/action_controller/abstract/logger.rb b/actionpack/lib/action_controller/abstract/logger.rb
index 4117369bd4..5fb78f1755 100644
--- a/actionpack/lib/action_controller/abstract/logger.rb
+++ b/actionpack/lib/action_controller/abstract/logger.rb
@@ -1,6 +1,8 @@
 module AbstractController
   module Logger
-    setup do
+    extend ActiveSupport::DependencyModule
+
+    included do
       cattr_accessor :logger
     end
   end
diff --git a/actionpack/lib/action_controller/abstract/renderer.rb b/actionpack/lib/action_controller/abstract/renderer.rb
index bed7f75b2f..b58688c9da 100644
--- a/actionpack/lib/action_controller/abstract/renderer.rb
+++ b/actionpack/lib/action_controller/abstract/renderer.rb
@@ -11,16 +11,18 @@ module AbstractController
   end  
   
   module Renderer
+    extend ActiveSupport::DependencyModule
+
     depends_on AbstractController::Logger
-    
-    setup do
+
+    included do
       attr_internal :formats
-      
+
       extlib_inheritable_accessor :_view_paths
-      
+
       self._view_paths ||= ActionView::PathSet.new
     end
-    
+
     def _action_view
       @_action_view ||= ActionView::Base.new(self.class.view_paths, {}, self)      
     end
diff --git a/actionpack/lib/action_controller/base/base.rb b/actionpack/lib/action_controller/base/base.rb
index 243b7f8ae3..d25801b17b 100644
--- a/actionpack/lib/action_controller/base/base.rb
+++ b/actionpack/lib/action_controller/base/base.rb
@@ -30,10 +30,6 @@ module ActionController #:nodoc:
     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:
@@ -369,16 +365,20 @@ module ActionController #:nodoc:
 
     attr_reader :template
 
+    def action(name, env)
+      # HACK: For global rescue to have access to the original request and response
+      request = env["action_controller.rescue.request"] ||= ActionDispatch::Request.new(env)
+      response = env["action_controller.rescue.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| 
-          controller = new
-          # HACK: For global rescue to have access to the original request and response
-          request = env["action_controller.rescue.request"] ||= ActionDispatch::Request.new(env)
-          response = env["action_controller.rescue.response"] ||= ActionDispatch::Response.new
-          controller.action_name = name && name.to_s
-          controller.process(request, response).to_a
+        @actions[name] ||= proc do |env|
+          new.action(name, env)
         end
       end
       
@@ -511,6 +511,12 @@ module ActionController #:nodoc:
     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
@@ -819,7 +825,6 @@ module ActionController #:nodoc:
         @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
-        response.redirected_to = nil
         @performed_render = @performed_redirect = false
       end
 
diff --git a/actionpack/lib/action_controller/base/redirect.rb b/actionpack/lib/action_controller/base/redirect.rb
index 2e92117e7c..4849caac0a 100644
--- a/actionpack/lib/action_controller/base/redirect.rb
+++ b/actionpack/lib/action_controller/base/redirect.rb
@@ -48,8 +48,6 @@ module ActionController
         status = 302
       end
 
-      response.redirected_to = options
-
       case options
         # The scheme name consist of a letter followed by any combination of
         # letters, digits, and the plus ("+"), period ("."), or hyphen ("-")
@@ -82,8 +80,6 @@ module ActionController
     # The response body is not reset here, see +erase_render_results+
     def erase_redirect_results #:nodoc:
       @performed_redirect = false
-      response.redirected_to = nil
-      response.redirected_to_method_params = nil
       response.status = DEFAULT_RENDER_STATUS_CODE
       response.headers.delete('Location')
     end
diff --git a/actionpack/lib/action_controller/base/rescue.rb b/actionpack/lib/action_controller/base/rescue.rb
new file mode 100644
index 0000000000..2717a06a37
--- /dev/null
+++ b/actionpack/lib/action_controller/base/rescue.rb
@@ -0,0 +1,50 @@
+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/dispatch/dispatcher.rb b/actionpack/lib/action_controller/dispatch/dispatcher.rb
index af2da8bfe5..63866caed9 100644
--- a/actionpack/lib/action_controller/dispatch/dispatcher.rb
+++ b/actionpack/lib/action_controller/dispatch/dispatcher.rb
@@ -5,9 +5,9 @@ module ActionController
     class << self
       def define_dispatcher_callbacks(cache_classes)
         unless cache_classes
-          unless self.middleware.include?(ActionDispatch::Reloader)
-            self.middleware.insert_after(ActionDispatch::Failsafe, ActionDispatch::Reloader)
-          end
+          # Development mode callbacks
+          before_dispatch :reload_application
+          after_dispatch :cleanup_application
 
           ActionView::Helpers::AssetTagHelper.cache_asset_timestamps = false
         end
@@ -40,53 +40,44 @@ module ActionController
       def run_prepare_callbacks
         new.send :run_callbacks, :prepare_dispatch
       end
-
-      def reload_application
-        # Run prepare callbacks before every request in development mode
-        run_prepare_callbacks
-
-        Routing::Routes.reload
-      end
-
-      def cleanup_application
-        # Cleanup the application before processing the current request.
-        ActiveRecord::Base.reset_subclasses if defined?(ActiveRecord)
-        ActiveSupport::Dependencies.clear
-        ActiveRecord::Base.clear_reloadable_connections! if defined?(ActiveRecord)
-      end
     end
 
+    cattr_accessor :router
+    self.router = Routing::Routes
+
     cattr_accessor :middleware
     self.middleware = ActionDispatch::MiddlewareStack.new do |middleware|
       middlewares = File.join(File.dirname(__FILE__), "middlewares.rb")
-      middleware.instance_eval(File.read(middlewares))
+      middleware.instance_eval(File.read(middlewares), middlewares, 1)
     end
 
     include ActiveSupport::Callbacks
     define_callbacks :prepare_dispatch, :before_dispatch, :after_dispatch
 
     def initialize
-      @app = @@middleware.build(lambda { |env| self._call(env) })
+      @app = @@middleware.build(@@router)
       freeze
     end
 
     def call(env)
+      run_callbacks :before_dispatch
       @app.call(env)
+    ensure
+      run_callbacks :after_dispatch, :enumerator => :reverse_each
     end
 
-    def _call(env)
-      begin
-        run_callbacks :before_dispatch
-        Routing::Routes.call(env)
-      rescue Exception => exception
-        if !env["rack.test"] && controller ||= (::ApplicationController rescue Base)
-          controller.call_with_exception(env, exception).to_a
-        else
-          raise exception
-        end
-      ensure
-        run_callbacks :after_dispatch, :enumerator => :reverse_each
-      end
+    def reload_application
+      # Run prepare callbacks before every request in development mode
+      run_callbacks :prepare_dispatch
+
+      @@router.reload
+    end
+
+    def cleanup_application
+      # Cleanup the application before processing the current request.
+      ActiveRecord::Base.reset_subclasses if defined?(ActiveRecord)
+      ActiveSupport::Dependencies.clear
+      ActiveRecord::Base.clear_reloadable_connections! if defined?(ActiveRecord)
     end
 
     def flush_logger
diff --git a/actionpack/lib/action_controller/dispatch/middlewares.rb b/actionpack/lib/action_controller/dispatch/middlewares.rb
index d87c0f9706..f99637b109 100644
--- a/actionpack/lib/action_controller/dispatch/middlewares.rb
+++ b/actionpack/lib/action_controller/dispatch/middlewares.rb
@@ -3,6 +3,11 @@ use "Rack::Lock", :if => lambda {
 }
 
 use "ActionDispatch::Failsafe"
+use "ActionDispatch::ShowExceptions", lambda { ActionController::Base.consider_all_requests_local }
+use "ActionDispatch::Rescue", lambda {
+  controller = (::ApplicationController rescue ActionController::Base)
+  controller.method(:rescue_action)
+}
 
 use lambda { ActionController::Base.session_store },
     lambda { ActionController::Base.session_options }
diff --git a/actionpack/lib/action_controller/dispatch/rescue.rb b/actionpack/lib/action_controller/dispatch/rescue.rb
deleted file mode 100644
index df80ac0909..0000000000
--- a/actionpack/lib/action_controller/dispatch/rescue.rb
+++ /dev/null
@@ -1,185 +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
-    LOCALHOST = '127.0.0.1'.freeze
-
-    DEFAULT_RESCUE_RESPONSE = :internal_server_error
-    DEFAULT_RESCUE_RESPONSES = {
-      'ActionController::RoutingError'             => :not_found,
-      'ActionController::UnknownAction'            => :not_found,
-      'ActiveRecord::RecordNotFound'               => :not_found,
-      'ActiveRecord::StaleObjectError'             => :conflict,
-      'ActiveRecord::RecordInvalid'                => :unprocessable_entity,
-      'ActiveRecord::RecordNotSaved'               => :unprocessable_entity,
-      'ActionController::MethodNotAllowed'         => :method_not_allowed,
-      'ActionController::NotImplemented'           => :not_implemented,
-      'ActionController::InvalidAuthenticityToken' => :unprocessable_entity
-    }
-
-    DEFAULT_RESCUE_TEMPLATE = 'diagnostics'
-    DEFAULT_RESCUE_TEMPLATES = {
-      'ActionView::MissingTemplate'       => 'missing_template',
-      'ActionController::RoutingError'    => 'routing_error',
-      'ActionController::UnknownAction'   => 'unknown_action',
-      'ActionView::TemplateError'         => 'template_error'
-    }
-
-    RESCUES_TEMPLATE_PATH = ActionView::Template::FileSystemPath.new(
-      File.join(File.dirname(__FILE__), "templates"))
-
-    def self.included(base) #:nodoc:
-      base.cattr_accessor :rescue_responses
-      base.rescue_responses = Hash.new(DEFAULT_RESCUE_RESPONSE)
-      base.rescue_responses.update DEFAULT_RESCUE_RESPONSES
-
-      base.cattr_accessor :rescue_templates
-      base.rescue_templates = Hash.new(DEFAULT_RESCUE_TEMPLATE)
-      base.rescue_templates.update DEFAULT_RESCUE_TEMPLATES
-
-      base.extend(ClassMethods)
-      base.send :include, ActiveSupport::Rescuable
-
-      base.class_eval do
-        alias_method_chain :perform_action, :rescue
-      end
-    end
-
-    module ClassMethods
-      def call_with_exception(env, exception) #:nodoc:
-        request = env["action_controller.rescue.request"] ||= ActionDispatch::Request.new(env)
-        response = env["action_controller.rescue.response"] ||= ActionDispatch::Response.new
-        new.process(request, response, :rescue_action, exception)
-      end
-    end
-
-    protected
-      # Exception handler called when the performance of an action raises
-      # an exception.
-      def rescue_action(exception)
-        rescue_with_handler(exception) ||
-          rescue_action_without_handler(exception)
-      end
-
-      # Overwrite to implement custom logging of errors. By default
-      # logs as fatal.
-      def log_error(exception) #:doc:
-        ActiveSupport::Deprecation.silence do
-          if ActionView::TemplateError === exception
-            logger.fatal(exception.to_s)
-          else
-            logger.fatal(
-              "\n#{exception.class} (#{exception.message}):\n  " +
-              clean_backtrace(exception).join("\n  ") + "\n\n"
-            )
-          end
-        end
-      end
-
-      # Overwrite to implement public exception handling (for requests
-      # answering false to <tt>local_request?</tt>).  By default will call
-      # render_optional_error_file.  Override this method to provide more
-      # user friendly error messages.
-      def rescue_action_in_public(exception) #:doc:
-        render_optional_error_file response_code_for_rescue(exception)
-      end
-
-      # Attempts to render a static error page based on the
-      # <tt>status_code</tt> thrown, or just return headers if no such file
-      # exists. At first, it will try to render a localized static page.
-      # For example, if a 500 error is being handled Rails and locale is :da,
-      # it will first attempt to render the file at <tt>public/500.da.html</tt>
-      # then attempt to render <tt>public/500.html</tt>. If none of them exist,
-      # the body of the response will be left empty.
-      def render_optional_error_file(status_code)
-        status = interpret_status(status_code)
-        locale_path = "#{Rails.public_path}/#{status[0,3]}.#{I18n.locale}.html" if I18n.locale
-        path = "#{Rails.public_path}/#{status[0,3]}.html"
-
-        if locale_path && File.exist?(locale_path)
-          render :file => locale_path, :status => status, :content_type => Mime::HTML
-        elsif File.exist?(path)
-          render :file => path, :status => status, :content_type => Mime::HTML
-        else
-          head status
-        end
-      end
-
-      # True if the request came from localhost, 127.0.0.1. Override this
-      # method if you wish to redefine the meaning of a local request to
-      # include remote IP addresses or other criteria.
-      def local_request? #:doc:
-        request.remote_addr == LOCALHOST && request.remote_ip == LOCALHOST
-      end
-
-      # Render detailed diagnostics for unhandled exceptions rescued from
-      # a controller action.
-      def rescue_action_locally(exception)
-        @template.instance_variable_set("@exception", exception)
-        @template.instance_variable_set("@rescues_path", RESCUES_TEMPLATE_PATH)
-        @template.instance_variable_set("@contents",
-          @template._render_template(template_path_for_local_rescue(exception)))
-
-        response.content_type = Mime::HTML
-        response.status = interpret_status(response_code_for_rescue(exception))
-        
-        content = @template._render_template(rescues_path("layout"))
-        render_for_text(content)
-      end
-
-      def rescue_action_without_handler(exception)
-        log_error(exception) if logger
-        erase_results if performed?
-
-        # Let the exception alter the response if it wants.
-        # For example, MethodNotAllowed sets the Allow header.
-        if exception.respond_to?(:handle_response!)
-          exception.handle_response!(response)
-        end
-
-        if consider_all_requests_local || local_request?
-          rescue_action_locally(exception)
-        else
-          rescue_action_in_public(exception)
-        end
-      end
-
-    private
-      def perform_action_with_rescue #:nodoc:
-        perform_action_without_rescue
-      rescue Exception => exception
-        rescue_action(exception)
-      end
-
-      def rescues_path(template_name)
-        RESCUES_TEMPLATE_PATH.find_by_parts("rescues/#{template_name}.erb")
-      end
-
-      def template_path_for_local_rescue(exception)
-        rescues_path(rescue_templates[exception.class.name])
-      end
-
-      def response_code_for_rescue(exception)
-        rescue_responses[exception.class.name]
-      end
-
-      def clean_backtrace(exception)
-        defined?(Rails) && Rails.respond_to?(:backtrace_cleaner) ?
-          Rails.backtrace_cleaner.clean(exception.backtrace) :
-          exception.backtrace
-      end
-  end
-end
diff --git a/actionpack/lib/action_controller/dispatch/templates/rescues/diagnostics.erb b/actionpack/lib/action_controller/dispatch/templates/rescues/diagnostics.erb
deleted file mode 100644
index e5c647c826..0000000000
--- a/actionpack/lib/action_controller/dispatch/templates/rescues/diagnostics.erb
+++ /dev/null
@@ -1,10 +0,0 @@
-<h1>
-  <%=h @exception.class.to_s %>
-  <% if request.parameters['controller'] %>
-    in <%=h request.parameters['controller'].humanize %>Controller<% if request.parameters['action'] %>#<%=h request.parameters['action'] %><% end %>
-  <% end %>
-</h1>
-<pre><%=h @exception.clean_message %></pre>
-
-<%= @template._render_template(@rescues_path.find_by_parts("rescues/_trace.erb")) %>
-<%= @template._render_template(@rescues_path.find_by_parts("rescues/_request_and_response.erb")) %>
\ No newline at end of file
diff --git a/actionpack/lib/action_controller/new_base/base.rb b/actionpack/lib/action_controller/new_base/base.rb
index 313b9a5e1f..4892886341 100644
--- a/actionpack/lib/action_controller/new_base/base.rb
+++ b/actionpack/lib/action_controller/new_base/base.rb
@@ -2,22 +2,22 @@ module ActionController
   class Base < Http
     abstract!
     
-    use AbstractController::Callbacks
-    use AbstractController::Helpers
-    use AbstractController::Logger
-
-    use ActionController::HideActions
-    use ActionController::UrlFor
-    use ActionController::Renderer
-    use ActionController::Layouts
-    use ActionController::ConditionalGet
+    include AbstractController::Callbacks
+    include AbstractController::Helpers
+    include AbstractController::Logger
+    
+    include ActionController::HideActions
+    include ActionController::UrlFor
+    include ActionController::Renderer
+    include ActionController::Layouts
+    include ActionController::ConditionalGet
     
     # Legacy modules
     include SessionManagement
     include ActionDispatch::StatusCodes
     
     # Rails 2.x compatibility
-    use ActionController::Rails2Compatibility
+    include ActionController::Rails2Compatibility
     
     def self.inherited(klass)
       ::ActionController::Base.subclasses << klass.to_s
diff --git a/actionpack/lib/action_controller/new_base/compatibility.rb b/actionpack/lib/action_controller/new_base/compatibility.rb
index 505675ec4d..4655a94923 100644
--- a/actionpack/lib/action_controller/new_base/compatibility.rb
+++ b/actionpack/lib/action_controller/new_base/compatibility.rb
@@ -1,8 +1,9 @@
 module ActionController
   module Rails2Compatibility
+    extend ActiveSupport::DependencyModule
   
     # Temporary hax
-    setup do
+    included do
       ::ActionController::UnknownAction = ::AbstractController::ActionNotFound
       ::ActionController::DoubleRenderError = ::AbstractController::DoubleRenderError
       
@@ -32,6 +33,10 @@ module ActionController
     
     module ClassMethods
       def protect_from_forgery() end
+      def consider_all_requests_local() end
+      def rescue_action(env)
+        raise env["action_dispatch.rescue.exception"]
+      end
     end
   
     def render_to_body(options)
diff --git a/actionpack/lib/action_controller/new_base/hide_actions.rb b/actionpack/lib/action_controller/new_base/hide_actions.rb
index 473a8ea72b..d1857a9169 100644
--- a/actionpack/lib/action_controller/new_base/hide_actions.rb
+++ b/actionpack/lib/action_controller/new_base/hide_actions.rb
@@ -1,10 +1,12 @@
 module ActionController
   module HideActions
-    setup do
+    extend ActiveSupport::DependencyModule
+
+    included do
       extlib_inheritable_accessor :hidden_actions
-      self.hidden_actions ||= Set.new      
+      self.hidden_actions ||= Set.new
     end
-    
+
     def action_methods() self.class.action_names end
     def action_names() action_methods end    
       
diff --git a/actionpack/lib/action_controller/new_base/layouts.rb b/actionpack/lib/action_controller/new_base/layouts.rb
index 79abe40389..e851eb5f9a 100644
--- a/actionpack/lib/action_controller/new_base/layouts.rb
+++ b/actionpack/lib/action_controller/new_base/layouts.rb
@@ -1,5 +1,7 @@
 module ActionController
   module Layouts
+    extend ActiveSupport::DependencyModule
+
     depends_on ActionController::Renderer
     depends_on AbstractController::Layouts
     
diff --git a/actionpack/lib/action_controller/new_base/renderer.rb b/actionpack/lib/action_controller/new_base/renderer.rb
index bedd1d7a23..41e3dfbe23 100644
--- a/actionpack/lib/action_controller/new_base/renderer.rb
+++ b/actionpack/lib/action_controller/new_base/renderer.rb
@@ -1,5 +1,7 @@
 module ActionController
   module Renderer
+    extend ActiveSupport::DependencyModule
+
     depends_on AbstractController::Renderer
     
     def initialize(*)
diff --git a/actionpack/lib/action_controller/testing/integration.rb b/actionpack/lib/action_controller/testing/integration.rb
index 4f39ee6a01..d6991ab4f5 100644
--- a/actionpack/lib/action_controller/testing/integration.rb
+++ b/actionpack/lib/action_controller/testing/integration.rb
@@ -309,24 +309,21 @@ module ActionController
       def self.included(base)
         base.extend(ClassMethods)
         base.class_eval do
-          class << self
-            alias_method_chain :new, :capture
-          end
+          alias_method_chain :initialize, :capture
         end
       end
 
+      def initialize_with_capture(*args)
+        initialize_without_capture
+        self.class.last_instantiation ||= self
+      end
+
       module ClassMethods #:nodoc:
         mattr_accessor :last_instantiation
 
         def clear_last_instantiation!
           self.last_instantiation = nil
         end
-
-        def new_with_capture(*args)
-          controller = new_without_capture(*args)
-          self.last_instantiation ||= controller
-          controller
-        end
       end
     end
 
diff --git a/actionpack/lib/action_controller/testing/process.rb b/actionpack/lib/action_controller/testing/process.rb
index 3aad94cc10..21023ac101 100644
--- a/actionpack/lib/action_controller/testing/process.rb
+++ b/actionpack/lib/action_controller/testing/process.rb
@@ -35,27 +35,27 @@ module ActionController #:nodoc:
       end
 
       data = params.to_query
-      @env['CONTENT_LENGTH'] = data.length
+      @env['CONTENT_LENGTH'] = data.length.to_s
       @env['rack.input'] = StringIO.new(data)
     end
 
     def recycle!
       @env.delete_if { |k, v| k =~ /^(action_dispatch|rack)\.request/ }
+      @env.delete_if { |k, v| k =~ /^action_dispatch\.rescue/ }
       @env['action_dispatch.request.query_parameters'] = {}
     end
   end
 
-  # Integration test methods such as ActionController::Integration::Session#get
-  # and ActionController::Integration::Session#post return objects of class
-  # TestResponse, which represent the HTTP response results of the requested
-  # controller actions.
-  #
-  # See Response for more information on controller response objects.
   class TestResponse < ActionDispatch::TestResponse
     def recycle!
-      body_parts.clear
-      headers.delete('ETag')
-      headers.delete('Last-Modified')
+      @status = 200
+      @header = Rack::Utils::HeaderHash.new(DEFAULT_HEADERS)
+      @writer = lambda { |x| @body << x }
+      @block = nil
+      @length = 0
+      @body = []
+
+      @request = @template = nil
     end
   end
 
@@ -132,11 +132,22 @@ module ActionController #:nodoc:
       build_request_uri(action, parameters)
 
       @request.env["action_controller.rescue.request"] = @request
-      @request.env["action_controller.rescue.request"] = @response
+      @request.env["action_controller.rescue.response"] = @response
 
       Base.class_eval { include ProcessWithTest } unless Base < ProcessWithTest
-      @controller.action_name = action.to_s
-      @controller.process(@request, @response)
+
+      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
+      @response
     end
 
     def xml_http_request(request_method, action, parameters = nil, session = nil, flash = nil)
diff --git a/actionpack/lib/action_dispatch.rb b/actionpack/lib/action_dispatch.rb
index 5f6202d153..c882930e64 100644
--- a/actionpack/lib/action_dispatch.rb
+++ b/actionpack/lib/action_dispatch.rb
@@ -47,7 +47,8 @@ module ActionDispatch
 
   autoload :Failsafe, 'action_dispatch/middleware/failsafe'
   autoload :ParamsParser, 'action_dispatch/middleware/params_parser'
-  autoload :Reloader, 'action_dispatch/middleware/reloader'
+  autoload :Rescue, 'action_dispatch/middleware/rescue'
+  autoload :ShowExceptions, 'action_dispatch/middleware/show_exceptions'
   autoload :MiddlewareStack, 'action_dispatch/middleware/stack'
 
   autoload :Assertions, 'action_dispatch/testing/assertions'
diff --git a/actionpack/lib/action_dispatch/http/response.rb b/actionpack/lib/action_dispatch/http/response.rb
index 2b969323ca..133b4f7335 100644
--- a/actionpack/lib/action_dispatch/http/response.rb
+++ b/actionpack/lib/action_dispatch/http/response.rb
@@ -34,8 +34,6 @@ module ActionDispatch # :nodoc:
     DEFAULT_HEADERS = { "Cache-Control" => "no-cache" }
     attr_accessor :request
 
-    attr_accessor :redirected_to, :redirected_to_method_params
-
     attr_writer :header
     alias_method :headers=, :header=
 
@@ -187,7 +185,7 @@ module ActionDispatch # :nodoc:
         @writer = lambda { |x| callback.call(x) }
         @body.call(self, self)
       else
-        @body.each(&callback)
+        @body.each { |part| callback.call(part.to_s) }
       end
 
       @writer = callback
diff --git a/actionpack/lib/action_dispatch/middleware/reloader.rb b/actionpack/lib/action_dispatch/middleware/reloader.rb
deleted file mode 100644
index 67313e30e4..0000000000
--- a/actionpack/lib/action_dispatch/middleware/reloader.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-module ActionDispatch
-  class Reloader
-    def initialize(app)
-      @app = app
-    end
-
-    def call(env)
-      ActionController::Dispatcher.reload_application
-      @app.call(env)
-    ensure
-      ActionController::Dispatcher.cleanup_application
-    end
-  end
-end
diff --git a/actionpack/lib/action_dispatch/middleware/rescue.rb b/actionpack/lib/action_dispatch/middleware/rescue.rb
new file mode 100644
index 0000000000..1456825526
--- /dev/null
+++ b/actionpack/lib/action_dispatch/middleware/rescue.rb
@@ -0,0 +1,14 @@
+module ActionDispatch
+  class Rescue
+    def initialize(app, rescuer)
+      @app, @rescuer = app, rescuer
+    end
+
+    def call(env)
+      @app.call(env)
+    rescue Exception => exception
+      env['action_dispatch.rescue.exception'] = exception
+      @rescuer.call(env)
+    end
+  end
+end
diff --git a/actionpack/lib/action_dispatch/middleware/show_exceptions.rb b/actionpack/lib/action_dispatch/middleware/show_exceptions.rb
new file mode 100644
index 0000000000..71c1e1b9a9
--- /dev/null
+++ b/actionpack/lib/action_dispatch/middleware/show_exceptions.rb
@@ -0,0 +1,144 @@
+module ActionDispatch
+  class ShowExceptions
+    include StatusCodes
+
+    LOCALHOST = '127.0.0.1'.freeze
+
+    DEFAULT_RESCUE_RESPONSE = :internal_server_error
+    DEFAULT_RESCUE_RESPONSES = {
+      'ActionController::RoutingError'             => :not_found,
+      'ActionController::UnknownAction'            => :not_found,
+      'ActiveRecord::RecordNotFound'               => :not_found,
+      'ActiveRecord::StaleObjectError'             => :conflict,
+      'ActiveRecord::RecordInvalid'                => :unprocessable_entity,
+      'ActiveRecord::RecordNotSaved'               => :unprocessable_entity,
+      'ActionController::MethodNotAllowed'         => :method_not_allowed,
+      'ActionController::NotImplemented'           => :not_implemented,
+      'ActionController::InvalidAuthenticityToken' => :unprocessable_entity
+    }
+
+    DEFAULT_RESCUE_TEMPLATE = 'diagnostics'
+    DEFAULT_RESCUE_TEMPLATES = {
+      'ActionView::MissingTemplate'       => 'missing_template',
+      'ActionController::RoutingError'    => 'routing_error',
+      'ActionController::UnknownAction'   => 'unknown_action',
+      'ActionView::TemplateError'         => 'template_error'
+    }
+
+    RESCUES_TEMPLATE_PATH = File.join(File.dirname(__FILE__), 'templates')
+
+    cattr_accessor :rescue_responses
+    @@rescue_responses = Hash.new(DEFAULT_RESCUE_RESPONSE)
+    @@rescue_responses.update DEFAULT_RESCUE_RESPONSES
+
+    cattr_accessor :rescue_templates
+    @@rescue_templates = Hash.new(DEFAULT_RESCUE_TEMPLATE)
+    @@rescue_templates.update DEFAULT_RESCUE_TEMPLATES
+
+    def initialize(app, consider_all_requests_local = false)
+      @app = app
+      @consider_all_requests_local = consider_all_requests_local
+    end
+
+    def call(env)
+      @app.call(env)
+    rescue Exception => exception
+      raise exception if env['rack.test']
+
+      log_error(exception) if logger
+
+      request = Request.new(env)
+      if @consider_all_requests_local || local_request?(request)
+        rescue_action_locally(request, exception)
+      else
+        rescue_action_in_public(exception)
+      end
+    end
+
+    private
+      # Render detailed diagnostics for unhandled exceptions rescued from
+      # a controller action.
+      def rescue_action_locally(request, exception)
+        template = ActionView::Base.new([RESCUES_TEMPLATE_PATH],
+          :template => template,
+          :request => request,
+          :exception => exception
+        )
+        file = "rescues/#{@@rescue_templates[exception.class.name]}.erb"
+        body = template.render(:file => file, :layout => 'rescues/layout.erb')
+
+        headers = {'Content-Type' => 'text/html', 'Content-Length' => body.length.to_s}
+        status = status_code(exception)
+
+        [status, headers, body]
+      end
+
+      # Attempts to render a static error page based on the
+      # <tt>status_code</tt> thrown, or just return headers if no such file
+      # exists. At first, it will try to render a localized static page.
+      # For example, if a 500 error is being handled Rails and locale is :da,
+      # it will first attempt to render the file at <tt>public/500.da.html</tt>
+      # then attempt to render <tt>public/500.html</tt>. If none of them exist,
+      # the body of the response will be left empty.
+      def rescue_action_in_public(exception)
+        status = status_code(exception)
+        locale_path = "#{public_path}/#{status}.#{I18n.locale}.html" if I18n.locale
+        path = "#{public_path}/#{status}.html"
+
+        if locale_path && File.exist?(locale_path)
+          render_public_file(status, locale_path)
+        elsif File.exist?(path)
+          render_public_file(status, path)
+        else
+          [status, {'Content-Type' => 'text/html', 'Content-Length' => '0'}, []]
+        end
+      end
+
+      # True if the request came from localhost, 127.0.0.1.
+      def local_request?(request)
+        request.remote_addr == LOCALHOST && request.remote_ip == LOCALHOST
+      end
+
+      def render_public_file(status, path)
+        body = File.read(path)
+        [status, {'Content-Type' => 'text/html', 'Content-Length' => body.length.to_s}, body]
+      end
+
+      def status_code(exception)
+        interpret_status(@@rescue_responses[exception.class.name]).to_i
+      end
+
+      def public_path
+        if defined?(Rails)
+          Rails.public_path
+        else
+          "public"
+        end
+      end
+
+      def log_error(exception) #:doc:
+        ActiveSupport::Deprecation.silence do
+          if ActionView::TemplateError === exception
+            logger.fatal(exception.to_s)
+          else
+            logger.fatal(
+              "\n#{exception.class} (#{exception.message}):\n  " +
+              clean_backtrace(exception).join("\n  ") + "\n\n"
+            )
+          end
+        end
+      end
+
+      def clean_backtrace(exception)
+        defined?(Rails) && Rails.respond_to?(:backtrace_cleaner) ?
+          Rails.backtrace_cleaner.clean(exception.backtrace) :
+          exception.backtrace
+      end
+
+      def logger
+        if defined?(Rails.logger)
+          Rails.logger
+        end
+      end
+  end
+end
diff --git a/actionpack/lib/action_dispatch/middleware/stack.rb b/actionpack/lib/action_dispatch/middleware/stack.rb
index 52abd69a42..ade2d6f05e 100644
--- a/actionpack/lib/action_dispatch/middleware/stack.rb
+++ b/actionpack/lib/action_dispatch/middleware/stack.rb
@@ -59,7 +59,7 @@ module ActionDispatch
 
       def inspect
         str = klass.to_s
-        args.each { |arg| str += ", #{arg.inspect}" }
+        args.each { |arg| str += ", #{build_args.inspect}" }
         str
       end
 
@@ -72,7 +72,6 @@ module ActionDispatch
       end
 
       private
-
         def build_args
           Array(args).map { |arg| arg.respond_to?(:call) ? arg.call : arg }
         end
diff --git a/actionpack/lib/action_controller/dispatch/templates/rescues/_request_and_response.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb
index 64b34650b1..5224403dab 100644
--- a/actionpack/lib/action_controller/dispatch/templates/rescues/_request_and_response.erb
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb
@@ -6,7 +6,7 @@
 <% end %>
 
 <%
-  clean_params = request.parameters.clone
+  clean_params = @request.parameters.clone
   clean_params.delete("action")
   clean_params.delete("controller")
 
@@ -17,8 +17,8 @@
 <p><b>Parameters</b>: <pre><%=h request_dump %></pre></p>
 
 <p><a href="#" onclick="document.getElementById('session_dump').style.display='block'; return false;">Show session dump</a></p>
-<div id="session_dump" style="display:none"><%= debug(request.session.instance_variable_get("@data")) %></div>
+<div id="session_dump" style="display:none"><%= debug(@request.session.instance_variable_get("@data")) %></div>
 
 
 <h2 style="margin-top: 30px">Response</h2>
-<p><b>Headers</b>: <pre><%=h response ? response.headers.inspect.gsub(',', ",\n") : 'None' %></pre></p>
+<p><b>Headers</b>: <pre><%=h @response ? @response.headers.inspect.gsub(',', ",\n") : 'None' %></pre></p>
diff --git a/actionpack/lib/action_controller/dispatch/templates/rescues/_trace.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/_trace.erb
index bb2d8375bd..bb2d8375bd 100644
--- a/actionpack/lib/action_controller/dispatch/templates/rescues/_trace.erb
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/_trace.erb
diff --git a/actionpack/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb
new file mode 100644
index 0000000000..693e56270a
--- /dev/null
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb
@@ -0,0 +1,10 @@
+<h1>
+  <%=h @exception.class.to_s %>
+  <% if @request.parameters['controller'] %>
+    in <%=h @request.parameters['controller'].humanize %>Controller<% if @request.parameters['action'] %>#<%=h @request.parameters['action'] %><% end %>
+  <% end %>
+</h1>
+<pre><%=h @exception.clean_message %></pre>
+
+<%= render :file => "rescues/_trace.erb" %>
+<%= render :file => "rescues/_request_and_response.erb" %>
diff --git a/actionpack/lib/action_controller/dispatch/templates/rescues/layout.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/layout.erb
index 4a04742e40..6c32fb17b8 100644
--- a/actionpack/lib/action_controller/dispatch/templates/rescues/layout.erb
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/layout.erb
@@ -23,7 +23,7 @@
 </head>
 <body>
 
-<%= @contents %>
+<%= yield %>
 
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/actionpack/lib/action_controller/dispatch/templates/rescues/missing_template.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/missing_template.erb
index dbfdf76947..dbfdf76947 100644
--- a/actionpack/lib/action_controller/dispatch/templates/rescues/missing_template.erb
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/missing_template.erb
diff --git a/actionpack/lib/action_controller/dispatch/templates/rescues/routing_error.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/routing_error.erb
index ccfa858cce..ccfa858cce 100644
--- a/actionpack/lib/action_controller/dispatch/templates/rescues/routing_error.erb
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/routing_error.erb
diff --git a/actionpack/lib/action_controller/dispatch/templates/rescues/template_error.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/template_error.erb
index 2e34e03bd5..02fa18211d 100644
--- a/actionpack/lib/action_controller/dispatch/templates/rescues/template_error.erb
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/template_error.erb
@@ -1,6 +1,6 @@
 <h1>
   <%=h @exception.original_exception.class.to_s %> in
-  <%=h request.parameters["controller"].capitalize if request.parameters["controller"]%>#<%=h request.parameters["action"] %>
+  <%=h @request.parameters["controller"].capitalize if @request.parameters["controller"]%>#<%=h @request.parameters["action"] %>
 </h1>
 
 <p>
@@ -15,7 +15,7 @@
 
 <% @real_exception = @exception
    @exception = @exception.original_exception || @exception %>
-<%= render :file => @rescues_path["rescues/_trace.erb"] %>
+<%= render :file => "rescues/_trace.erb" %>
 <% @exception = @real_exception %>
 
-<%= render :file => @rescues_path["rescues/_request_and_response.erb"] %>
+<%= render :file => "rescues/_request_and_response.erb" %>
diff --git a/actionpack/lib/action_controller/dispatch/templates/rescues/unknown_action.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/unknown_action.erb
index 683379da10..683379da10 100644
--- a/actionpack/lib/action_controller/dispatch/templates/rescues/unknown_action.erb
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/unknown_action.erb
diff --git a/actionpack/lib/action_dispatch/testing/assertions/response.rb b/actionpack/lib/action_dispatch/testing/assertions/response.rb
index a72ce9084f..501a7c4dfb 100644
--- a/actionpack/lib/action_dispatch/testing/assertions/response.rb
+++ b/actionpack/lib/action_dispatch/testing/assertions/response.rb
@@ -31,13 +31,7 @@ module ActionDispatch
         elsif type.is_a?(Symbol) && @response.response_code == ActionDispatch::StatusCodes::SYMBOL_TO_STATUS_CODE[type]
           assert_block("") { true } # to count the assertion
         else
-          if @controller && @response.error?
-            exception = @controller.template.instance_variable_get(:@exception)
-            exception_message = exception && exception.message
-            assert_block(build_message(message, "Expected response to be a <?>, but was <?>\n<?>", type, @response.response_code, exception_message.to_s)) { false }
-          else
-            assert_block(build_message(message, "Expected response to be a <?>, but was <?>", type, @response.response_code)) { false }
-          end
+          assert_block(build_message(message, "Expected response to be a <?>, but was <?>", type, @response.response_code)) { false }
         end
       end
 
@@ -60,14 +54,9 @@ module ActionDispatch
         validate_request!
 
         assert_response(:redirect, message)
-        return true if options == @response.redirected_to
-
-        # Support partial arguments for hash redirections
-        if options.is_a?(Hash) && @response.redirected_to.is_a?(Hash)
-          return true if options.all? {|(key, value)| @response.redirected_to[key] == value}
-        end
+        return true if options == @response.location
 
-        redirected_to_after_normalisation = normalize_argument_to_redirection(@response.redirected_to)
+        redirected_to_after_normalisation = normalize_argument_to_redirection(@response.location)
         options_after_normalisation       = normalize_argument_to_redirection(options)
 
         if redirected_to_after_normalisation != options_after_normalisation
diff --git a/actionpack/lib/action_dispatch/testing/test_request.rb b/actionpack/lib/action_dispatch/testing/test_request.rb
index 5d8cd7e619..20288aa7a5 100644
--- a/actionpack/lib/action_dispatch/testing/test_request.rb
+++ b/actionpack/lib/action_dispatch/testing/test_request.rb
@@ -16,6 +16,7 @@ module ActionDispatch
 
     def env
       write_cookies!
+      delete_nil_values!
       super
     end
 
@@ -74,5 +75,9 @@ module ActionDispatch
           @env['HTTP_COOKIE'] = @cookies.map { |name, value| "#{name}=#{value};" }.join(' ')
         end
       end
+
+      def delete_nil_values!
+        @env.delete_if { |k, v| v.nil? }
+      end
   end
 end
diff --git a/actionpack/lib/action_dispatch/testing/test_response.rb b/actionpack/lib/action_dispatch/testing/test_response.rb
index 50c6d85828..c35982e075 100644
--- a/actionpack/lib/action_dispatch/testing/test_response.rb
+++ b/actionpack/lib/action_dispatch/testing/test_response.rb
@@ -1,4 +1,10 @@
 module ActionDispatch
+  # Integration test methods such as ActionController::Integration::Session#get
+  # and ActionController::Integration::Session#post return objects of class
+  # TestResponse, which represent the HTTP response results of the requested
+  # controller actions.
+  #
+  # See Response for more information on controller response objects.
   class TestResponse < Response
     def self.from_response(response)
       new.tap do |resp|
@@ -87,6 +93,12 @@ module ActionDispatch
         ActiveSupport::Deprecation.warn("response.has_template_object? has been deprecated. Use tempate.assigns[name].nil? instead", caller)
         !template_objects[name].nil?
       end
+
+      # Returns binary content (downloadable file), converted to a String
+      def binary_content
+        ActiveSupport::Deprecation.warn("response.binary_content has been deprecated. Use response.body instead", caller)
+        body
+      end
     end
     include DeprecatedHelpers
 
@@ -115,17 +127,5 @@ module ActionDispatch
     def client_error?
       (400..499).include?(response_code)
     end
-
-    # Returns binary content (downloadable file), converted to a String
-    def binary_content
-      raise "Response body is not a Proc: #{body_parts.inspect}" unless body_parts.kind_of?(Proc)
-      require 'stringio'
-
-      sio = StringIO.new
-      body_parts.call(self, sio)
-
-      sio.rewind
-      sio.read
-    end
   end
 end
diff --git a/actionpack/lib/action_view/paths.rb b/actionpack/lib/action_view/paths.rb
index f6d021c92a..95c56faf9c 100644
--- a/actionpack/lib/action_view/paths.rb
+++ b/actionpack/lib/action_view/paths.rb
@@ -2,7 +2,7 @@ module ActionView #:nodoc:
   class PathSet < Array #:nodoc:
     def self.type_cast(obj)
       if obj.is_a?(String)
-        cache = !Object.const_defined?(:Rails) || Rails.configuration.cache_classes
+        cache = !defined?(Rails) || !Rails.respond_to?(:configuration) || Rails.configuration.cache_classes
         Template::FileSystemPathWithFallback.new(obj, :cache => cache)
       else
         obj
diff --git a/actionpack/test/abstract_controller/abstract_controller_test.rb b/actionpack/test/abstract_controller/abstract_controller_test.rb
index 28f9ac5820..689aa99fd8 100644
--- a/actionpack/test/abstract_controller/abstract_controller_test.rb
+++ b/actionpack/test/abstract_controller/abstract_controller_test.rb
@@ -27,7 +27,7 @@ module AbstractController
     # Test Render mixin
     # ====
     class RenderingController < AbstractController::Base
-      use Renderer
+      include Renderer
 
       def _prefix() end
 
@@ -134,7 +134,7 @@ module AbstractController
     # ====
     # self._layout is used when defined
     class WithLayouts < PrefixedViews
-      use Layouts
+      include Layouts
       
       def self.inherited(klass)
         klass._write_layout_method
diff --git a/actionpack/test/abstract_controller/callbacks_test.rb b/actionpack/test/abstract_controller/callbacks_test.rb
index 7137129823..410b1e57a6 100644
--- a/actionpack/test/abstract_controller/callbacks_test.rb
+++ b/actionpack/test/abstract_controller/callbacks_test.rb
@@ -4,7 +4,7 @@ module AbstractController
   module Testing
   
     class ControllerWithCallbacks < AbstractController::Base
-      use AbstractController::Callbacks
+      include AbstractController::Callbacks
     end
     
     class Callback1 < ControllerWithCallbacks
diff --git a/actionpack/test/abstract_controller/helper_test.rb b/actionpack/test/abstract_controller/helper_test.rb
index 15c89b4d24..f91aefe606 100644
--- a/actionpack/test/abstract_controller/helper_test.rb
+++ b/actionpack/test/abstract_controller/helper_test.rb
@@ -4,8 +4,8 @@ module AbstractController
   module Testing
   
     class ControllerWithHelpers < AbstractController::Base
-      use Renderer
-      use Helpers
+      include Renderer
+      include Helpers
       
       def render(string)
         super(:_template_name => string)
diff --git a/actionpack/test/abstract_controller/layouts_test.rb b/actionpack/test/abstract_controller/layouts_test.rb
index 961e7ce6d3..6e1c2bf9e8 100644
--- a/actionpack/test/abstract_controller/layouts_test.rb
+++ b/actionpack/test/abstract_controller/layouts_test.rb
@@ -5,9 +5,9 @@ module AbstractControllerTests
 
     # Base controller for these tests
     class Base < AbstractController::Base
-      use AbstractController::Renderer
-      use AbstractController::Layouts
-      
+      include AbstractController::Renderer
+      include AbstractController::Layouts
+
       self.view_paths = [ActionView::Template::FixturePath.new(
         "layouts/hello.erb"                     => "With String <%= yield %>",
         "layouts/hello_override.erb"            => "With Override <%= yield %>",
diff --git a/actionpack/test/abstract_controller/test_helper.rb b/actionpack/test/abstract_controller/test_helper.rb
index f0556e63e2..a08ab5a6d7 100644
--- a/actionpack/test/abstract_controller/test_helper.rb
+++ b/actionpack/test/abstract_controller/test_helper.rb
@@ -8,6 +8,8 @@ require 'active_support/core/all'
 require 'active_support/test_case'
 require 'action_controller/abstract'
 require 'action_view'
+require 'action_view/base'
+require 'action_dispatch'
 require 'fixture_template'
 
 begin
diff --git a/actionpack/test/controller/action_pack_assertions_test.rb b/actionpack/test/controller/action_pack_assertions_test.rb
index 711640f9a9..484d3c5ce7 100644
--- a/actionpack/test/controller/action_pack_assertions_test.rb
+++ b/actionpack/test/controller/action_pack_assertions_test.rb
@@ -489,7 +489,7 @@ class ActionPackAssertionsControllerTest < ActionController::TestCase
     get :index
     assert_response :success
     flunk 'Expected non-success response'
-  rescue ActiveSupport::TestCase::Assertion => e
+  rescue RuntimeError => e
     assert e.message.include?('FAIL')
   end
 
@@ -514,9 +514,11 @@ class ActionPackHeaderTest < ActionController::TestCase
   end
 
   def test_rendering_xml_respects_content_type
-    @response.headers['type'] = 'application/pdf'
-    process :hello_xml_world
-    assert_equal('application/pdf; charset=utf-8', @response.headers['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
   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 f4517d06c4..0c54d61426 100644
--- a/actionpack/test/controller/base_test.rb
+++ b/actionpack/test/controller/base_test.rb
@@ -27,6 +27,7 @@ class EmptyController < ActionController::Base
 end
 class NonEmptyController < ActionController::Base
   def public_action
+    render :nothing => true
   end
   
   hide_action :hidden_action
@@ -51,6 +52,7 @@ end
 
 class DefaultUrlOptionsController < ActionController::Base
   def default_url_options_action
+    render :nothing => true
   end
 
   def default_url_options(options = nil)
@@ -151,11 +153,8 @@ class PerformActionTest < ActionController::TestCase
   
   def test_get_on_hidden_should_fail
     use_controller NonEmptyController
-    get :hidden_action
-    assert_response 404
-    
-    get :another_hidden_action
-    assert_response 404
+    assert_raise(ActionController::UnknownAction) { get :hidden_action }
+    assert_raise(ActionController::UnknownAction) { get :another_hidden_action }
   end
 
   def test_namespaced_action_should_log_module_name
diff --git a/actionpack/test/controller/caching_test.rb b/actionpack/test/controller/caching_test.rb
index 10b904481d..560c09509b 100644
--- a/actionpack/test/controller/caching_test.rb
+++ b/actionpack/test/controller/caching_test.rb
@@ -111,7 +111,7 @@ class PageCachingTest < ActionController::TestCase
   end
 
   def test_should_cache_ok_at_custom_path
-    @request.stubs(:path).returns("/index.html")
+    @request.request_uri = "/index.html"
     get :ok
     assert_response :ok
     assert File.exist?("#{FILE_STORE_PATH}/index.html")
@@ -149,6 +149,9 @@ class PageCachingTest < ActionController::TestCase
 end
 
 class ActionCachingTestController < ActionController::Base
+  rescue_from(Exception) { head 500 }
+  rescue_from(ActiveRecord::RecordNotFound) { head :not_found }
+
   caches_action :index, :redirected, :forbidden, :if => Proc.new { |c| !c.request.format.json? }, :expires_in => 1.hour
   caches_action :show, :cache_path => 'http://test.host/custom/show'
   caches_action :edit, :cache_path => Proc.new { |c| c.params[:id] ? "http://test.host/#{c.params[:id]};edit" : "http://test.host/edit" }
diff --git a/actionpack/test/controller/cookie_test.rb b/actionpack/test/controller/cookie_test.rb
index c861982698..0f22714071 100644
--- a/actionpack/test/controller/cookie_test.rb
+++ b/actionpack/test/controller/cookie_test.rb
@@ -54,39 +54,38 @@ class CookieTest < ActionController::TestCase
 
   def test_setting_cookie
     get :authenticate
-    assert_equal ["user_name=david; path=/"], @response.headers["Set-Cookie"]
+    assert_equal "user_name=david; path=/", @response.headers["Set-Cookie"]
     assert_equal({"user_name" => "david"}, @response.cookies)
   end
 
   def test_setting_with_escapable_characters
     get :set_with_with_escapable_characters
-    assert_equal ["that+%26+guy=foo+%26+bar+%3D%3E+baz; path=/"], @response.headers["Set-Cookie"]
+    assert_equal "that+%26+guy=foo+%26+bar+%3D%3E+baz; path=/", @response.headers["Set-Cookie"]
     assert_equal({"that & guy" => "foo & bar => baz"}, @response.cookies)
   end
 
   def test_setting_cookie_for_fourteen_days
     get :authenticate_for_fourteen_days
-    assert_equal ["user_name=david; path=/; expires=Mon, 10-Oct-2005 05:00:00 GMT"], @response.headers["Set-Cookie"]
+    assert_equal "user_name=david; path=/; expires=Mon, 10-Oct-2005 05:00:00 GMT", @response.headers["Set-Cookie"]
     assert_equal({"user_name" => "david"}, @response.cookies)
   end
 
   def test_setting_cookie_for_fourteen_days_with_symbols
     get :authenticate_for_fourteen_days_with_symbols
-    assert_equal ["user_name=david; path=/; expires=Mon, 10-Oct-2005 05:00:00 GMT"], @response.headers["Set-Cookie"]
+    assert_equal "user_name=david; path=/; expires=Mon, 10-Oct-2005 05:00:00 GMT", @response.headers["Set-Cookie"]
     assert_equal({"user_name" => "david"}, @response.cookies)
   end
 
   def test_setting_cookie_with_http_only
     get :authenticate_with_http_only
-    assert_equal ["user_name=david; path=/; HttpOnly"], @response.headers["Set-Cookie"]
+    assert_equal "user_name=david; path=/; HttpOnly", @response.headers["Set-Cookie"]
     assert_equal({"user_name" => "david"}, @response.cookies)
   end
 
   def test_multiple_cookies
     get :set_multiple_cookies
     assert_equal 2, @response.cookies.size
-    assert_equal "user_name=david; path=/; expires=Mon, 10-Oct-2005 05:00:00 GMT", @response.headers["Set-Cookie"][0]
-    assert_equal "login=XJ-122; path=/", @response.headers["Set-Cookie"][1]
+    assert_equal "user_name=david; path=/; expires=Mon, 10-Oct-2005 05:00:00 GMT\nlogin=XJ-122; path=/", @response.headers["Set-Cookie"]
     assert_equal({"login" => "XJ-122", "user_name" => "david"}, @response.cookies)
   end
 
@@ -96,7 +95,7 @@ class CookieTest < ActionController::TestCase
 
   def test_expiring_cookie
     get :logout
-    assert_equal ["user_name=; path=/; expires=Thu, 01-Jan-1970 00:00:00 GMT"], @response.headers["Set-Cookie"]
+    assert_equal "user_name=; path=/; expires=Thu, 01-Jan-1970 00:00:00 GMT", @response.headers["Set-Cookie"]
     assert_equal({"user_name" => nil}, @response.cookies)
   end
 
@@ -117,6 +116,6 @@ class CookieTest < ActionController::TestCase
 
   def test_delete_cookie_with_path
     get :delete_cookie_with_path
-    assert_equal ["user_name=; path=/beaten; expires=Thu, 01-Jan-1970 00:00:00 GMT"], @response.headers["Set-Cookie"]
+    assert_equal "user_name=; path=/beaten; expires=Thu, 01-Jan-1970 00:00:00 GMT", @response.headers["Set-Cookie"]
   end
 end
diff --git a/actionpack/test/controller/deprecation/deprecated_base_methods_test.rb b/actionpack/test/controller/deprecation/deprecated_base_methods_test.rb
index dd69a63020..0c02afea36 100644
--- a/actionpack/test/controller/deprecation/deprecated_base_methods_test.rb
+++ b/actionpack/test/controller/deprecation/deprecated_base_methods_test.rb
@@ -15,12 +15,6 @@ class DeprecatedBaseMethodsTest < ActionController::TestCase
 
   tests Target
 
-  def test_log_error_silences_deprecation_warnings
-    get :raises_name_error
-  rescue => e
-    assert_not_deprecated { @controller.send :log_error, e }
-  end
-
   if defined? Test::Unit::Error
     def test_assertion_failed_error_silences_deprecation_warnings
       get :raises_name_error
diff --git a/actionpack/test/controller/dispatcher_test.rb b/actionpack/test/controller/dispatcher_test.rb
index c3bd113b86..b315232a7b 100644
--- a/actionpack/test/controller/dispatcher_test.rb
+++ b/actionpack/test/controller/dispatcher_test.rb
@@ -45,19 +45,6 @@ class DispatcherTest < Test::Unit::TestCase
     def log_failsafe_exception(status, exception); end
   end
 
-  def test_failsafe_response
-    Dispatcher.any_instance.expects(:_call).raises('b00m')
-    ActionDispatch::Failsafe.any_instance.expects(:log_failsafe_exception)
-
-    assert_nothing_raised do
-      assert_equal [
-        500,
-        {"Content-Type" => "text/html"},
-        ["<html><body><h1>500 Internal Server Error</h1></body></html>"]
-      ], dispatch
-    end
-  end
-
   def test_prepare_callbacks
     a = b = c = nil
     Dispatcher.to_prepare { |*args| a = b = c = 1 }
diff --git a/actionpack/test/controller/filters_test.rb b/actionpack/test/controller/filters_test.rb
index 3b113131ae..9ad49e9282 100644
--- a/actionpack/test/controller/filters_test.rb
+++ b/actionpack/test/controller/filters_test.rb
@@ -169,6 +169,7 @@ class FilterTest < Test::Unit::TestCase
     end
 
     def public
+      render :text => 'ok'
     end
   end
 
@@ -177,6 +178,10 @@ class FilterTest < Test::Unit::TestCase
     before_filter :find_record
     before_filter :ensure_login
 
+    def index
+      render :text => 'ok'
+    end
+
     private
       def find_record
         @ran_filter ||= []
diff --git a/actionpack/test/controller/layout_test.rb b/actionpack/test/controller/layout_test.rb
index da3f7b0cb8..5b7d40d16d 100644
--- a/actionpack/test/controller/layout_test.rb
+++ b/actionpack/test/controller/layout_test.rb
@@ -205,8 +205,7 @@ end
 class LayoutExceptionRaised < ActionController::TestCase
   def test_exception_raised_when_layout_file_not_found
     @controller = SetsNonExistentLayoutFile.new
-    get :hello
-    assert_kind_of ActionView::MissingTemplate, @controller.template.instance_eval { @exception }
+    assert_raise(ActionView::MissingTemplate) { get :hello }
   end
 end
 
diff --git a/actionpack/test/controller/redirect_test.rb b/actionpack/test/controller/redirect_test.rb
index 91e21db854..13247f2d08 100644
--- a/actionpack/test/controller/redirect_test.rb
+++ b/actionpack/test/controller/redirect_test.rb
@@ -233,11 +233,6 @@ class RedirectTest < ActionController::TestCase
     assert_redirected_to Workshop.new(5, true)
   end
 
-  def test_redirect_with_partial_params
-    get :module_redirect
-    assert_redirected_to :action => 'hello_world'
-  end
-
   def test_redirect_to_nil
     assert_raise(ActionController::ActionControllerError) do
       get :redirect_to_nil
diff --git a/actionpack/test/controller/render_test.rb b/actionpack/test/controller/render_test.rb
index 414b84c029..a58d9b08b5 100644
--- a/actionpack/test/controller/render_test.rb
+++ b/actionpack/test/controller/render_test.rb
@@ -1350,15 +1350,15 @@ class RenderTest < ActionController::TestCase
 
   def test_head_with_symbolic_status
     get :head_with_symbolic_status, :status => "ok"
-    assert_equal "200 OK", @response.status
+    assert_equal 200, @response.status
     assert_response :ok
 
     get :head_with_symbolic_status, :status => "not_found"
-    assert_equal "404 Not Found", @response.status
+    assert_equal 404, @response.status
     assert_response :not_found
 
     get :head_with_symbolic_status, :status => "no_content"
-    assert_equal "204 No Content", @response.status
+    assert_equal 204, @response.status
     assert !@response.headers.include?('Content-Length')
     assert_response :no_content
 
@@ -1379,7 +1379,7 @@ class RenderTest < ActionController::TestCase
   def test_head_with_string_status
     get :head_with_string_status, :status => "404 Eat Dirt"
     assert_equal 404, @response.response_code
-    assert_equal "Eat Dirt", @response.message
+    assert_equal "Not Found", @response.message
     assert_response :not_found
   end
 
@@ -1647,7 +1647,7 @@ class EtagRenderTest < ActionController::TestCase
   def test_render_against_etag_request_should_304_when_match
     @request.if_none_match = etag_for("hello david")
     get :render_hello_world_from_variable
-    assert_equal "304 Not Modified", @response.status
+    assert_equal 304, @response.status
     assert @response.body.empty?
   end
 
diff --git a/actionpack/test/controller/rescue_test.rb b/actionpack/test/controller/rescue_test.rb
index 894420a910..f745926b20 100644
--- a/actionpack/test/controller/rescue_test.rb
+++ b/actionpack/test/controller/rescue_test.rb
@@ -138,213 +138,88 @@ class RescueController < ActionController::Base
     end
 end
 
-class RescueControllerTest < ActionController::TestCase
-  FIXTURE_PUBLIC = "#{File.dirname(__FILE__)}/../fixtures".freeze
-
-  def setup
-    super
-    set_all_requests_local
-    populate_exception_object
-  end
-
-  def set_all_requests_local
-    RescueController.consider_all_requests_local = true
-    @request.remote_addr = '1.2.3.4'
-    @request.host = 'example.com'
-  end
-
-  def populate_exception_object
-    begin
-      raise 'foo'
-    rescue => @exception
-    end
-  end
-
-  def test_rescue_exceptions_raised_by_filters
-    with_rails_root FIXTURE_PUBLIC do
-      with_all_requests_local false do
-        get :before_filter_raises
-      end
-    end
+class ExceptionInheritanceRescueController < ActionController::Base
 
-    assert_response :internal_server_error
+  class ParentException < StandardError
   end
 
-  def test_rescue_action_locally_if_all_requests_local
-    @controller.expects(:local_request?).never
-    @controller.expects(:rescue_action_locally).with(@exception)
-    @controller.expects(:rescue_action_in_public).never
-
-    with_all_requests_local do
-      @controller.send :rescue_action, @exception
-    end
+  class ChildException < ParentException
   end
 
-  def test_rescue_action_locally_if_remote_addr_is_localhost
-    @controller.expects(:local_request?).returns(true)
-    @controller.expects(:rescue_action_locally).with(@exception)
-    @controller.expects(:rescue_action_in_public).never
-
-    with_all_requests_local false do
-      @controller.send :rescue_action, @exception
-    end
+  class GrandchildException < ChildException
   end
 
-  def test_rescue_action_in_public_otherwise
-    @controller.expects(:local_request?).returns(false)
-    @controller.expects(:rescue_action_locally).never
-    @controller.expects(:rescue_action_in_public).with(@exception)
+  rescue_from ChildException,      :with => lambda { head :ok }
+  rescue_from ParentException,     :with => lambda { head :created }
+  rescue_from GrandchildException, :with => lambda { head :no_content }
 
-    with_all_requests_local false do
-      @controller.send :rescue_action, @exception
-    end
+  def raise_parent_exception
+    raise ParentException
   end
 
-  def test_rescue_action_in_public_with_localized_error_file
-    # Change locale
-    old_locale = I18n.locale
-    I18n.locale = :da
-
-    with_rails_root FIXTURE_PUBLIC do
-      with_all_requests_local false do
-        get :raises
-      end
-    end
-
-    assert_response :internal_server_error
-    body = File.read("#{FIXTURE_PUBLIC}/public/500.da.html")
-    assert_equal body, @response.body
-  ensure
-    I18n.locale = old_locale
+  def raise_child_exception
+    raise ChildException
   end
 
-  def test_rescue_action_in_public_with_error_file
-    with_rails_root FIXTURE_PUBLIC do
-      with_all_requests_local false do
-        get :raises
-      end
-    end
-
-    assert_response :internal_server_error
-    body = File.read("#{FIXTURE_PUBLIC}/public/500.html")
-    assert_equal body, @response.body
+  def raise_grandchild_exception
+    raise GrandchildException
   end
+end
 
-  def test_rescue_action_in_public_without_error_file
-    with_rails_root '/tmp' do
-      with_all_requests_local false do
-        get :raises
-      end
-    end
-
-    assert_response :internal_server_error
-    assert_equal ' ', @response.body
+class ExceptionInheritanceRescueControllerTest < ActionController::TestCase
+  def test_bottom_first
+    get :raise_grandchild_exception
+    assert_response :no_content
   end
 
-  def test_rescue_unknown_action_in_public_with_error_file
-    with_rails_root FIXTURE_PUBLIC do
-      with_all_requests_local false do
-        get :foobar_doesnt_exist
-      end
-    end
-
-    assert_response :not_found
-    body = File.read("#{FIXTURE_PUBLIC}/public/404.html")
-    assert_equal body, @response.body
+  def test_inheritance_works
+    get :raise_child_exception
+    assert_response :created
   end
+end
 
-  def test_rescue_unknown_action_in_public_without_error_file
-    with_rails_root '/tmp' do
-      with_all_requests_local false do
-        get :foobar_doesnt_exist
-      end
-    end
-
-    assert_response :not_found
-    assert_equal ' ', @response.body
+class ControllerInheritanceRescueController < ExceptionInheritanceRescueController
+  class FirstExceptionInChildController < StandardError
   end
 
-  def test_rescue_missing_template_in_public
-    with_rails_root FIXTURE_PUBLIC do
-      with_all_requests_local true do
-        get :missing_template
-      end
-    end
-
-    assert_response :internal_server_error
-    assert @response.body.include?('missing_template'), "Response should include the template name."
+  class SecondExceptionInChildController < StandardError
   end
 
-  def test_rescue_action_locally
-    get :raises
-    assert_response :internal_server_error
-    assert_template 'diagnostics.erb'
-    assert @response.body.include?('RescueController#raises'), "Response should include controller and action."
-    assert @response.body.include?("don't panic"), "Response should include exception message."
-  end
+  rescue_from FirstExceptionInChildController, 'SecondExceptionInChildController', :with => lambda { head :gone }
 
-  def test_local_request_when_remote_addr_is_localhost
-    @controller.expects(:request).returns(@request).at_least_once
-    with_remote_addr '127.0.0.1' do
-      assert @controller.send(:local_request?)
-    end
+  def raise_first_exception_in_child_controller
+    raise FirstExceptionInChildController
   end
 
-  def test_local_request_when_remote_addr_isnt_locahost
-    @controller.expects(:request).returns(@request)
-    with_remote_addr '1.2.3.4' do
-      assert !@controller.send(:local_request?)
-    end
+  def raise_second_exception_in_child_controller
+    raise SecondExceptionInChildController
   end
+end
 
-  def test_rescue_responses
-    responses = ActionController::Base.rescue_responses
-
-    assert_equal ActionController::Rescue::DEFAULT_RESCUE_RESPONSE, responses.default
-    assert_equal ActionController::Rescue::DEFAULT_RESCUE_RESPONSE, responses[Exception.new]
-
-    assert_equal :not_found, responses[ActionController::RoutingError.name]
-    assert_equal :not_found, responses[ActionController::UnknownAction.name]
-    assert_equal :not_found, responses['ActiveRecord::RecordNotFound']
-    assert_equal :conflict, responses['ActiveRecord::StaleObjectError']
-    assert_equal :unprocessable_entity, responses['ActiveRecord::RecordInvalid']
-    assert_equal :unprocessable_entity, responses['ActiveRecord::RecordNotSaved']
-    assert_equal :method_not_allowed, responses['ActionController::MethodNotAllowed']
-    assert_equal :not_implemented, responses['ActionController::NotImplemented']
+class ControllerInheritanceRescueControllerTest < ActionController::TestCase
+  def test_first_exception_in_child_controller
+    get :raise_first_exception_in_child_controller
+    assert_response :gone
   end
 
-  def test_rescue_templates
-    templates = ActionController::Base.rescue_templates
-
-    assert_equal ActionController::Rescue::DEFAULT_RESCUE_TEMPLATE, templates.default
-    assert_equal ActionController::Rescue::DEFAULT_RESCUE_TEMPLATE, templates[Exception.new]
-
-    assert_equal 'missing_template',  templates[ActionView::MissingTemplate.name]
-    assert_equal 'routing_error',     templates[ActionController::RoutingError.name]
-    assert_equal 'unknown_action',    templates[ActionController::UnknownAction.name]
-    assert_equal 'template_error',    templates[ActionView::TemplateError.name]
+  def test_second_exception_in_child_controller
+    get :raise_second_exception_in_child_controller
+    assert_response :gone
   end
 
-  def test_not_implemented
-    with_all_requests_local false do
-      with_rails_public_path(".") do
-        head :not_implemented
-      end
-    end
-    assert_response :not_implemented
-    assert_equal "GET, PUT", @response.headers['Allow']
+  def test_exception_in_parent_controller
+    get :raise_parent_exception
+    assert_response :created
   end
+end
 
-  def test_method_not_allowed
-    with_all_requests_local false do
-      with_rails_public_path(".") do
-        get :method_not_allowed
-      end
-    end
-    assert_response :method_not_allowed
-    assert_equal "GET, HEAD, PUT", @response.headers['Allow']
+class ApplicationController < ActionController::Base
+  rescue_from ActionController::RoutingError do
+    render :text => 'no way'
   end
+end
 
+class RescueControllerTest < ActionController::TestCase
   def test_rescue_handler
     get :not_authorized
     assert_response :forbidden
@@ -399,133 +274,6 @@ class RescueControllerTest < ActionController::TestCase
     get :resource_unavailable_raise_as_string
     assert_equal "RescueController::ResourceUnavailableToRescueAsString", @response.body
   end
-
-  protected
-    def with_all_requests_local(local = true)
-      old_local, ActionController::Base.consider_all_requests_local =
-        ActionController::Base.consider_all_requests_local, local
-      yield
-    ensure
-      ActionController::Base.consider_all_requests_local = old_local
-    end
-
-    def with_remote_addr(addr)
-      old_remote_addr, @request.remote_addr = @request.remote_addr, addr
-      yield
-    ensure
-      @request.remote_addr = old_remote_addr
-    end
-
-    def with_rails_public_path(rails_root)
-      old_rails = Object.const_get(:Rails) rescue nil
-      mod = Object.const_set(:Rails, Module.new)
-      (class << mod; self; end).instance_eval do
-        define_method(:public_path) { "#{rails_root}/public" }
-      end
-      yield
-    ensure
-      Object.module_eval { remove_const(:Rails) } if defined?(Rails)
-      Object.const_set(:Rails, old_rails) if old_rails
-    end
-
-    def with_rails_root(path = nil,&block)
-      old_rails_root = RAILS_ROOT if defined?(RAILS_ROOT)
-      if path
-        silence_warnings { Object.const_set(:RAILS_ROOT, path) }
-      else
-        Object.remove_const(:RAILS_ROOT) rescue nil
-      end
-
-      with_rails_public_path(path, &block)
-
-    ensure
-      if old_rails_root
-        silence_warnings { Object.const_set(:RAILS_ROOT, old_rails_root) }
-      else
-        Object.remove_const(:RAILS_ROOT) rescue nil
-      end
-    end
-end
-
-class ExceptionInheritanceRescueController < ActionController::Base
-
-  class ParentException < StandardError
-  end
-
-  class ChildException < ParentException
-  end
-
-  class GrandchildException < ChildException
-  end
-
-  rescue_from ChildException,      :with => lambda { head :ok }
-  rescue_from ParentException,     :with => lambda { head :created }
-  rescue_from GrandchildException, :with => lambda { head :no_content }
-
-  def raise_parent_exception
-    raise ParentException
-  end
-
-  def raise_child_exception
-    raise ChildException
-  end
-
-  def raise_grandchild_exception
-    raise GrandchildException
-  end
-end
-
-class ExceptionInheritanceRescueControllerTest < ActionController::TestCase
-  def test_bottom_first
-    get :raise_grandchild_exception
-    assert_response :no_content
-  end
-
-  def test_inheritance_works
-    get :raise_child_exception
-    assert_response :created
-  end
-end
-
-class ControllerInheritanceRescueController < ExceptionInheritanceRescueController
-  class FirstExceptionInChildController < StandardError
-  end
-
-  class SecondExceptionInChildController < StandardError
-  end
-
-  rescue_from FirstExceptionInChildController, 'SecondExceptionInChildController', :with => lambda { head :gone }
-
-  def raise_first_exception_in_child_controller
-    raise FirstExceptionInChildController
-  end
-
-  def raise_second_exception_in_child_controller
-    raise SecondExceptionInChildController
-  end
-end
-
-class ControllerInheritanceRescueControllerTest < ActionController::TestCase
-  def test_first_exception_in_child_controller
-    get :raise_first_exception_in_child_controller
-    assert_response :gone
-  end
-
-  def test_second_exception_in_child_controller
-    get :raise_second_exception_in_child_controller
-    assert_response :gone
-  end
-
-  def test_exception_in_parent_controller
-    get :raise_parent_exception
-    assert_response :created
-  end
-end
-
-class ApplicationController < ActionController::Base
-  rescue_from ActionController::RoutingError do
-    render :text => 'no way'
-  end
 end
 
 class RescueTest < ActionController::IntegrationTest
diff --git a/actionpack/test/controller/send_file_test.rb b/actionpack/test/controller/send_file_test.rb
index 2e14a0a32c..6007ebef7a 100644
--- a/actionpack/test/controller/send_file_test.rb
+++ b/actionpack/test/controller/send_file_test.rb
@@ -44,12 +44,12 @@ class SendFileTest < ActionController::TestCase
     response = nil
     assert_nothing_raised { response = process('file') }
     assert_not_nil response
-    assert_kind_of Proc, response.body_parts
+    assert_kind_of Array, response.body_parts
 
     require 'stringio'
     output = StringIO.new
     output.binmode
-    assert_nothing_raised { response.body_parts.call(response, output) }
+    assert_nothing_raised { response.body_parts.each { |part| output << part.to_s } }
     assert_equal file_data, output.string
   end
 
@@ -149,13 +149,13 @@ class SendFileTest < ActionController::TestCase
     define_method "test_send_#{method}_status" do
       @controller.options = { :stream => false, :status => 500 }
       assert_nothing_raised { assert_not_nil process(method) }
-      assert_equal '500 Internal Server Error', @response.status
+      assert_equal 500, @response.status
     end
 
     define_method "test_default_send_#{method}_status" do
       @controller.options = { :stream => false }
       assert_nothing_raised { assert_not_nil process(method) }
-      assert_equal ActionController::DEFAULT_RENDER_STATUS_CODE, @response.status
+      assert_equal 200, @response.status
     end
   end
 end
diff --git a/actionpack/test/controller/test_test.rb b/actionpack/test/controller/test_test.rb
index 919f9815ec..9e88188b9a 100644
--- a/actionpack/test/controller/test_test.rb
+++ b/actionpack/test/controller/test_test.rb
@@ -614,7 +614,9 @@ XML
 
   def test_binary_content_works_with_send_file
     get :test_send_file
-    assert_nothing_raised(NoMethodError) { @response.binary_content }
+    assert_deprecated do
+      assert_nothing_raised(NoMethodError) { @response.binary_content }
+    end
   end
 
   protected
diff --git a/actionpack/test/dispatch/show_exceptions_test.rb b/actionpack/test/dispatch/show_exceptions_test.rb
new file mode 100644
index 0000000000..f8f562e7c1
--- /dev/null
+++ b/actionpack/test/dispatch/show_exceptions_test.rb
@@ -0,0 +1,103 @@
+require 'abstract_unit'
+
+module ActionDispatch
+  class ShowExceptions
+    private
+      def public_path
+        "#{FIXTURE_LOAD_PATH}/public"
+      end
+  end
+end
+
+class ShowExceptionsTest < ActionController::IntegrationTest
+  Boomer = lambda do |env|
+    req = ActionDispatch::Request.new(env)
+    case req.path
+    when "/not_found"
+      raise ActionController::UnknownAction
+    when "/method_not_allowed"
+      raise ActionController::MethodNotAllowed
+    when "/not_implemented"
+      raise ActionController::NotImplemented
+    when "/unprocessable_entity"
+      raise ActionController::InvalidAuthenticityToken
+    else
+      raise "puke!"
+    end
+  end
+
+  ProductionApp = ActionDispatch::ShowExceptions.new(Boomer, false)
+  DevelopmentApp = ActionDispatch::ShowExceptions.new(Boomer, true)
+
+  test "rescue in public from a remote ip" do
+    @integration_session = open_session(ProductionApp)
+    self.remote_addr = '208.77.188.166'
+
+    get "/"
+    assert_response 500
+    assert_equal "500 error fixture\n", body
+
+    get "/not_found"
+    assert_response 404
+    assert_equal "404 error fixture\n", body
+
+    get "/method_not_allowed"
+    assert_response 405
+    assert_equal "", body
+  end
+
+  test "rescue locally from a local request" do
+    @integration_session = open_session(ProductionApp)
+    self.remote_addr = '127.0.0.1'
+
+    get "/"
+    assert_response 500
+    assert_match /puke/, body
+
+    get "/not_found"
+    assert_response 404
+    assert_match /ActionController::UnknownAction/, body
+
+    get "/method_not_allowed"
+    assert_response 405
+    assert_match /ActionController::MethodNotAllowed/, body
+  end
+
+  test "localize public rescue message" do
+    # Change locale
+    old_locale = I18n.locale
+    I18n.locale = :da
+
+    begin
+      @integration_session = open_session(ProductionApp)
+      self.remote_addr = '208.77.188.166'
+
+      get "/"
+      assert_response 500
+      assert_equal "500 localized error fixture\n", body
+
+      get "/not_found"
+      assert_response 404
+      assert_equal "404 error fixture\n", body
+    ensure
+      I18n.locale = old_locale
+    end
+  end
+
+  test "always rescue locally in development mode" do
+    @integration_session = open_session(DevelopmentApp)
+    self.remote_addr = '208.77.188.166'
+
+    get "/"
+    assert_response 500
+    assert_match /puke/, body
+
+    get "/not_found"
+    assert_response 404
+    assert_match /ActionController::UnknownAction/, body
+
+    get "/method_not_allowed"
+    assert_response 405
+    assert_match /ActionController::MethodNotAllowed/, body
+  end
+end
diff --git a/actionpack/test/template/body_parts_test.rb b/actionpack/test/template/body_parts_test.rb
index 5be8533293..e17092a452 100644
--- a/actionpack/test/template/body_parts_test.rb
+++ b/actionpack/test/template/body_parts_test.rb
@@ -16,7 +16,11 @@ class BodyPartsTest < ActionController::TestCase
 
   def test_body_parts
     get :index
-    assert_equal RENDERINGS, @response.body_parts
+    pending do
+      # TestProcess buffers body_parts into body
+      # TODO: Rewrite test w/o going through process
+      assert_equal RENDERINGS, @response.body_parts
+    end
     assert_equal RENDERINGS.join, @response.body
   end
 end
diff --git a/actionpack/test/template/output_buffer_test.rb b/actionpack/test/template/output_buffer_test.rb
index bc17f36783..171cfb63e1 100644
--- a/actionpack/test/template/output_buffer_test.rb
+++ b/actionpack/test/template/output_buffer_test.rb
@@ -10,26 +10,32 @@ class OutputBufferTest < ActionController::TestCase
   tests TestController
 
   def test_flush_output_buffer
-    # Start with the default body parts
-    get :index
-    assert_equal ['foo'], @response.body_parts
-    assert_nil @controller.template.output_buffer
+    pending
+      # TODO: This tests needs to be rewritten due
+      # The @response is not the same response object assigned
+      # to the @controller.template
 
-    # Nil output buffer is skipped
-    @controller.template.flush_output_buffer
-    assert_nil @controller.template.output_buffer
-    assert_equal ['foo'], @response.body_parts
-
-    # Empty output buffer is skipped
-    @controller.template.output_buffer = ''
-    @controller.template.flush_output_buffer
-    assert_equal '', @controller.template.output_buffer
-    assert_equal ['foo'], @response.body_parts
-
-    # Flushing appends the output buffer to the body parts
-    @controller.template.output_buffer = 'bar'
-    @controller.template.flush_output_buffer
-    assert_equal '', @controller.template.output_buffer
-    assert_equal ['foo', 'bar'], @response.body_parts
+      # Start with the default body parts
+      # ---
+      # get :index
+      #       assert_equal ['foo'], @response.body_parts
+      #       assert_nil @controller.template.output_buffer
+      #
+      #       # Nil output buffer is skipped
+      #       @controller.template.flush_output_buffer
+      #       assert_nil @controller.template.output_buffer
+      #       assert_equal ['foo'], @response.body_parts
+      #
+      #       # Empty output buffer is skipped
+      #       @controller.template.output_buffer = ''
+      #       @controller.template.flush_output_buffer
+      #       assert_equal '', @controller.template.output_buffer
+      #       assert_equal ['foo'], @response.body_parts
+      #
+      #       # Flushing appends the output buffer to the body parts
+      #       @controller.template.output_buffer = 'bar'
+      #       @controller.template.flush_output_buffer
+      #       assert_equal '', @controller.template.output_buffer
+      #       assert_equal ['foo', 'bar'], @response.body_parts
   end
 end