Merge commit 'rails/master'

42 files changed, 653 insertions, 592 deletions

diff --git a/Gemfile b/Gemfile
index 348a1daaa7..d516abe111 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,7 +11,7 @@ group :mri do
   if RUBY_VERSION < '1.9'
     gem "system_timer"
     gem "ruby-debug", ">= 0.10.3"
-  elsif RUBY_VERSION < '1.9.2'
+  elsif RUBY_VERSION < '1.9.2' && !ENV['CI']
     gem "ruby-debug19"
   end
 end
diff --git a/actionpack/lib/action_dispatch/railtie.rb b/actionpack/lib/action_dispatch/railtie.rb
index 563df0f256..004c254e55 100644
--- a/actionpack/lib/action_dispatch/railtie.rb
+++ b/actionpack/lib/action_dispatch/railtie.rb
@@ -6,6 +6,7 @@ module ActionDispatch
     config.action_dispatch = ActiveSupport::OrderedOptions.new
     config.action_dispatch.x_sendfile_header = ""
     config.action_dispatch.ip_spoofing_check = true
+    config.action_dispatch.show_exceptions = true
 
     # Prepare dispatcher callbacks and run 'prepare' callbacks
     initializer "action_dispatch.prepare_dispatcher" do |app|
diff --git a/actionpack/lib/action_dispatch/routing/mapper.rb b/actionpack/lib/action_dispatch/routing/mapper.rb
index 74d0297898..2c7ee7dad0 100644
--- a/actionpack/lib/action_dispatch/routing/mapper.rb
+++ b/actionpack/lib/action_dispatch/routing/mapper.rb
@@ -194,6 +194,21 @@ module ActionDispatch
           self
         end
 
+        def mount(app, options = nil)
+          if options
+            path = options.delete(:at)
+          else
+            options = app
+            app, path = options.find { |k, v| k.respond_to?(:call) }
+            options.delete(app) if app
+          end
+
+          raise "A rack application must be specified" unless path
+
+          match(path, options.merge(:to => app, :anchor => false))
+          self
+        end
+
         def default_url_options=(options)
           @set.default_url_options = options
         end
@@ -380,14 +395,13 @@ module ActionDispatch
             [:index, :create, :new, :show, :update, :destroy, :edit]
           end
 
-          attr_reader :plural, :singular, :options
+          attr_reader :controller, :path, :options
 
           def initialize(entities, options = {})
-            @name = entities.to_s
-            @options = options
-
-            @plural   = @name.pluralize
-            @singular = @name.singularize
+            @name       = entities.to_s
+            @path       = options.delete(:path) || @name
+            @controller = options.delete(:controller) || @name.to_s.pluralize
+            @options    = options
           end
 
           def default_actions
@@ -417,8 +431,12 @@ module ActionDispatch
             options[:as] || @name
           end
 
-          def controller
-            options[:controller] || plural
+          def plural
+            name.to_s.pluralize
+          end
+
+          def singular
+            name.to_s.singularize
           end
 
           def member_name
@@ -509,7 +527,7 @@ module ActionDispatch
 
           resource = SingletonResource.new(resources.pop, options)
 
-          scope(:path => resource.name.to_s, :controller => resource.controller) do
+          scope(:path => resource.path, :controller => resource.controller) do
             with_scope_level(:resource, resource) do
 
               scope(:name_prefix => resource.name.to_s, :as => "") do
@@ -539,7 +557,7 @@ module ActionDispatch
 
           resource = Resource.new(resources.pop, options)
 
-          scope(:path => resource.name.to_s, :controller => resource.controller) do
+          scope(:path => resource.path, :controller => resource.controller) do
             with_scope_level(:resources, resource) do
               yield if block_given?
 
@@ -603,21 +621,6 @@ module ActionDispatch
           end
         end
 
-        def mount(app, options = nil)
-          if options
-            path = options.delete(:at)
-          else
-            options = app
-            app, path = options.find { |k, v| k.respond_to?(:call) }
-            options.delete(app) if app
-          end
-
-          raise "A rack application must be specified" unless path
-
-          match(path, options.merge(:to => app, :anchor => false))
-          self
-        end
-
         def match(*args)
           options = args.extract_options!
 
diff --git a/actionpack/lib/action_dispatch/testing/integration.rb b/actionpack/lib/action_dispatch/testing/integration.rb
index 621d63c5e2..031fa1dfb4 100644
--- a/actionpack/lib/action_dispatch/testing/integration.rb
+++ b/actionpack/lib/action_dispatch/testing/integration.rb
@@ -263,9 +263,7 @@ module ActionDispatch
             "HTTP_HOST"      => host,
             "REMOTE_ADDR"    => remote_addr,
             "CONTENT_TYPE"   => "application/x-www-form-urlencoded",
-            "HTTP_ACCEPT"    => accept,
-
-            "action_dispatch.show_exceptions" => false
+            "HTTP_ACCEPT"    => accept
           }
 
           (rack_environment || {}).each do |key, value|
diff --git a/actionpack/lib/action_view/base.rb b/actionpack/lib/action_view/base.rb
index a9b0715b2e..fde61e9df9 100644
--- a/actionpack/lib/action_view/base.rb
+++ b/actionpack/lib/action_view/base.rb
@@ -168,6 +168,8 @@ module ActionView #:nodoc:
     remove_method :helpers
     attr_reader :helpers
 
+    class_attribute :_router
+
     class << self
       delegate :erb_trim_mode=, :to => 'ActionView::Template::Handlers::ERB'
       delegate :logger, :to => 'ActionController::Base', :allow_nil => true
@@ -204,7 +206,10 @@ module ActionView #:nodoc:
       @assigns = assigns_for_first_render.each { |key, value| instance_variable_set("@#{key}", value) }
       @helpers = self.class.helpers || Module.new
 
-      @_controller   = controller
+      if @_controller = controller
+        @_request = controller.request if controller.respond_to?(:request)
+      end
+
       @_config       = ActiveSupport::InheritableOptions.new(controller.config) if controller && controller.respond_to?(:config)
       @_content_for  = Hash.new { |h,k| h[k] = ActiveSupport::SafeBuffer.new }
       @_virtual_path = nil
diff --git a/actionpack/lib/action_view/helpers.rb b/actionpack/lib/action_view/helpers.rb
index a50c180f63..ba3bdd0d18 100644
--- a/actionpack/lib/action_view/helpers.rb
+++ b/actionpack/lib/action_view/helpers.rb
@@ -29,16 +29,13 @@ module ActionView #:nodoc:
     autoload :TranslationHelper
     autoload :UrlHelper
 
-    def self.included(base)
-      base.extend(ClassMethods)
-    end
+    extend ActiveSupport::Concern
 
-    module ClassMethods
-      include SanitizeHelper::ClassMethods
+    included do
+      extend SanitizeHelper::ClassMethods
     end
 
     include ActiveSupport::Benchmarkable
-
     include ActiveModelHelper
     include AssetTagHelper
     include AtomFeedHelper
diff --git a/actionpack/lib/action_view/helpers/form_helper.rb b/actionpack/lib/action_view/helpers/form_helper.rb
index 89560d0b49..6a14f0be9c 100644
--- a/actionpack/lib/action_view/helpers/form_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_helper.rb
@@ -96,6 +96,7 @@ module ActionView
       extend ActiveSupport::Concern
 
       include FormTagHelper
+      include UrlHelper
 
       # Creates a form and a scope around a specific model object that is used
       # as a base for questioning about values for the fields.
diff --git a/actionpack/lib/action_view/helpers/url_helper.rb b/actionpack/lib/action_view/helpers/url_helper.rb
index b23d5fcb68..1415966869 100644
--- a/actionpack/lib/action_view/helpers/url_helper.rb
+++ b/actionpack/lib/action_view/helpers/url_helper.rb
@@ -13,14 +13,15 @@ module ActionView
       extend ActiveSupport::Concern
 
       include ActionDispatch::Routing::UrlFor
-      include JavaScriptHelper
+      include TagHelper
 
       # Need to map default url options to controller one.
-      def default_url_options(*args) #:nodoc:
-        controller.send(:default_url_options, *args)
-      end
-
+      # def default_url_options(*args) #:nodoc:
+      #   controller.send(:default_url_options, *args)
+      # end
+      #
       def url_options
+        return super unless controller.respond_to?(:url_options)
         controller.url_options
       end
 
@@ -97,7 +98,7 @@ module ActionView
         when Hash
           options = { :only_path => options[:host].nil? }.update(options.symbolize_keys)
           escape  = options.key?(:escape) ? options.delete(:escape) : false
-          controller.send(:url_for, options)
+          super
         when :back
           escape = false
           controller.request.env["HTTP_REFERER"] || 'javascript:history.back()'
@@ -119,13 +120,24 @@ module ActionView
       #
       # ==== Signatures
       #
-      #   link_to(name, options = {}, html_options = nil)
-      #   link_to(options = {}, html_options = nil) do
+      #   link_to(body, url, html_options = {})
+      #     # url is a String; you can use URL helpers like
+      #     # posts_path
+      #
+      #   link_to(body, url_options = {}, html_options = {})
+      #     # url_options, except :confirm or :method,
+      #     # is passed to url_for
+      #
+      #   link_to(options = {}, html_options = {}) do
+      #     # name
+      #   end
+      #
+      #   link_to(url, html_options = {}) do
       #     # name
       #   end
       #
       # ==== Options
-      # * <tt>:confirm => 'question?'</tt> - This will allow the unobtrusive JavaScript 
+      # * <tt>:confirm => 'question?'</tt> - This will allow the unobtrusive JavaScript
       #   driver to prompt with the question specified. If the user accepts, the link is
       #   processed normally, otherwise no action is taken.
       # * <tt>:method => symbol of HTTP verb</tt> - This modifier will dynamically
@@ -138,7 +150,11 @@ module ActionView
       #   disabled clicking the link will have no effect. If you are relying on the
       #   POST behavior, you should check for it in your controller's action by using
       #   the request object's methods for <tt>post?</tt>, <tt>delete?</tt> or <tt>put?</tt>.
-      # * The +html_options+ will accept a hash of html attributes for the link tag.
+      # * <tt>:remote => true</tt> - This will allow the unobtrusive JavaScript
+      #   driver to make an Ajax request to the URL in question instead of following
+      #   the link. The drivers each provide mechanisms for listening for the
+      #   completion of the Ajax request and performing JavaScript operations once
+      #   they're complete
       #
       # ==== Examples
       # Because it relies on +url_for+, +link_to+ supports both older-style controller/action/id arguments
@@ -220,8 +236,8 @@ module ActionView
           options      = args[1] || {}
           html_options = args[2]
 
-          url = url_for(options)
           html_options = convert_options_to_data_attributes(options, html_options)
+          url = url_for(options)
 
           if html_options
             html_options = html_options.stringify_keys
@@ -259,10 +275,10 @@ module ActionView
       # There are a few special +html_options+:
       # * <tt>:method</tt> - Specifies the anchor name to be appended to the path.
       # * <tt>:disabled</tt> - Specifies the anchor name to be appended to the path.
-      # * <tt>:confirm</tt> - This will use the unobtrusive JavaScript driver to 
+      # * <tt>:confirm</tt> - This will use the unobtrusive JavaScript driver to
       #   prompt with the question specified. If the user accepts, the link is
       #   processed normally, otherwise no action is taken.
-      # * <tt>:remote</tt> -  If set to true, will allow the Unobtrusive JavaScript drivers to control the 
+      # * <tt>:remote</tt> -  If set to true, will allow the Unobtrusive JavaScript drivers to control the
       #   submit behaviour. By default this behaviour is an ajax submit.
       #
       # ==== Examples
@@ -282,7 +298,7 @@ module ActionView
       #   #    </form>"
       #
       #
-      #   <%= button_to('Destroy', 'http://www.example.com', :confirm => 'Are you sure?', 
+      #   <%= button_to('Destroy', 'http://www.example.com', :confirm => 'Are you sure?',
       #             :method => "delete", :remote => true, :disable_with => 'loading...') %>
       #   # => "<form class='button-to' method='post' action='http://www.example.com' data-remote='true'>
       #   #       <div>
@@ -546,8 +562,14 @@ module ActionView
       #   current_page?(:controller => 'library', :action => 'checkout')
       #   # => false
       def current_page?(options)
+        unless request
+          raise "You cannot use helpers that need to determine the current " \
+                "page unless your view context provides a Request object " \
+                "in a #request method"
+        end
+
         url_string = CGI.unescapeHTML(url_for(options))
-        request = controller.request
+
         # We ignore any extra parameters in the request_uri if the
         # submitted url doesn't have any either.  This lets the function
         # work with things like ?order=asc
diff --git a/actionpack/lib/action_view/render/partials.rb b/actionpack/lib/action_view/render/partials.rb
index f04a89c1ac..4d23d55687 100644
--- a/actionpack/lib/action_view/render/partials.rb
+++ b/actionpack/lib/action_view/render/partials.rb
@@ -179,7 +179,7 @@ module ActionView
 
       def initialize(view_context, options, block)
         @view           = view_context
-        @partial_names  = PARTIAL_NAMES[@view.controller.class]
+        @partial_names  = PARTIAL_NAMES[@view.controller.class.name]
 
         setup(options, block)
       end
@@ -300,7 +300,7 @@ module ActionView
       end
 
       def partial_path(object = @object)
-        @partial_names[object.class] ||= begin
+        @partial_names[object.class.name] ||= begin
           object = object.to_model if object.respond_to?(:to_model)
 
           object.class.model_name.partial_path.dup.tap do |partial|
diff --git a/actionpack/lib/action_view/template.rb b/actionpack/lib/action_view/template.rb
index 8abc1633ff..3df2bd8eed 100644
--- a/actionpack/lib/action_view/template.rb
+++ b/actionpack/lib/action_view/template.rb
@@ -18,6 +18,14 @@ module ActionView
 
     attr_reader :source, :identifier, :handler, :virtual_path, :formats
 
+    def self.finalizer_for(method_name)
+      proc do
+        ActionView::CompiledTemplates.module_eval do
+          remove_possible_method method_name
+        end
+      end
+    end
+
     def initialize(source, identifier, handler, details)
       @source     = source
       @identifier = identifier
@@ -98,6 +106,7 @@ module ActionView
 
         begin
           ActionView::CompiledTemplates.module_eval(source, identifier, line)
+          ObjectSpace.define_finalizer(self, self.class.finalizer_for(method_name))
           method_name
         rescue Exception => e # errors from template code
           if logger = (view && view.logger)
diff --git a/actionpack/lib/action_view/test_case.rb b/actionpack/lib/action_view/test_case.rb
index 23b0c6e121..ddea9cfd92 100644
--- a/actionpack/lib/action_view/test_case.rb
+++ b/actionpack/lib/action_view/test_case.rb
@@ -142,8 +142,13 @@ module ActionView
         end
       end
 
+      def _router
+        @controller._router if @controller.respond_to?(:_router)
+      end
+
       def method_missing(selector, *args)
-        if @controller._router.named_routes.helpers.include?(selector)
+        if @controller.respond_to?(:_router) &&
+        @controller._router.named_routes.helpers.include?(selector)
           @controller.__send__(selector, *args)
         else
           super
diff --git a/actionpack/test/abstract_unit.rb b/actionpack/test/abstract_unit.rb
index 143491a640..fe78b8ec1f 100644
--- a/actionpack/test/abstract_unit.rb
+++ b/actionpack/test/abstract_unit.rb
@@ -57,6 +57,18 @@ module RackTestUtils
   extend self
 end
 
+module RenderERBUtils
+  def render_erb(string)
+    template = ActionView::Template.new(
+      string.strip,
+      "test template",
+      ActionView::Template::Handlers::ERB,
+      {})
+
+    template.render(self, {}).strip
+  end
+end
+
 module SetupOnce
   extend ActiveSupport::Concern
 
@@ -225,6 +237,14 @@ class Rack::TestCase < ActionController::IntegrationTest
   end
 end
 
+class ActionController::Base
+  def self.test_routes(&block)
+    router = ActionDispatch::Routing::RouteSet.new
+    router.draw(&block)
+    include router.url_helpers
+  end
+end
+
 class ::ApplicationController < ActionController::Base
 end
 
diff --git a/actionpack/test/dispatch/routing_test.rb b/actionpack/test/dispatch/routing_test.rb
index e58653cb8c..19538cb88b 100644
--- a/actionpack/test/dispatch/routing_test.rb
+++ b/actionpack/test/dispatch/routing_test.rb
@@ -58,8 +58,9 @@ class TestRoutingMapper < ActionDispatch::IntegrationTest
         get 'admin/accounts' => "queenbee#accounts"
       end
 
-      scope 'es' do
-        resources :projects, :path_names => { :edit => 'cambiar' }, :as => 'projeto'
+      scope 'pt', :name_prefix => 'pt' do
+        resources :projects, :path_names => { :edit => 'editar' }, :path => 'projetos'
+        resource  :admin,    :path_names => { :new => 'novo' },    :path => 'administrador'
       end
 
       resources :projects, :controller => :project do
@@ -74,10 +75,14 @@ class TestRoutingMapper < ActionDispatch::IntegrationTest
           resource  :avatar, :controller => :avatar
         end
 
-        resources :images do
+        resources :images, :as => :funny_images do
           post :revise, :on => :member
         end
 
+        resource :manager, :as => :super_manager do
+          post :fire
+        end
+
         resources :people do
           nested do
             scope "/:access_token" do
@@ -144,7 +149,7 @@ class TestRoutingMapper < ActionDispatch::IntegrationTest
       end
 
       namespace :forum do
-        resources :products, :as => '' do
+        resources :products, :path => '' do
           resources :questions
         end
       end
@@ -430,15 +435,35 @@ class TestRoutingMapper < ActionDispatch::IntegrationTest
     end
   end
 
+  def test_project_manager
+    with_test_routes do
+      get '/projects/1/manager'
+      assert_equal 'managers#show', @response.body
+      assert_equal '/projects/1/manager', project_super_manager_path(:project_id => '1')
+
+      get '/projects/1/manager/new'
+      assert_equal 'managers#new', @response.body
+      assert_equal '/projects/1/manager/new', new_project_super_manager_path(:project_id => '1')
+
+      post '/projects/1/manager/fire'
+      assert_equal 'managers#fire', @response.body
+      assert_equal '/projects/1/manager/fire', fire_project_super_manager_path(:project_id => '1')
+    end
+  end
+
   def test_project_images
     with_test_routes do
       get '/projects/1/images'
       assert_equal 'images#index', @response.body
-      assert_equal '/projects/1/images', project_images_path(:project_id => '1')
+      assert_equal '/projects/1/images', project_funny_images_path(:project_id => '1')
+
+      get '/projects/1/images/new'
+      assert_equal 'images#new', @response.body
+      assert_equal '/projects/1/images/new', new_project_funny_image_path(:project_id => '1')
 
       post '/projects/1/images/1/revise'
       assert_equal 'images#revise', @response.body
-      assert_equal '/projects/1/images/1/revise', revise_project_image_path(:project_id => '1', :id => '1')
+      assert_equal '/projects/1/images/1/revise', revise_project_funny_image_path(:project_id => '1', :id => '1')
     end
   end
 
@@ -552,11 +577,21 @@ class TestRoutingMapper < ActionDispatch::IntegrationTest
 
   def test_path_names
     with_test_routes do
-      get '/es/projeto'
+      get '/pt/projetos'
       assert_equal 'projects#index', @response.body
+      assert_equal '/pt/projetos', pt_projects_path
 
-      get '/es/projeto/1/cambiar'
+      get '/pt/projetos/1/editar'
       assert_equal 'projects#edit', @response.body
+      assert_equal '/pt/projetos/1/editar', edit_pt_project_path(1)
+
+      get '/pt/administrador'
+      assert_equal 'admins#show', @response.body
+      assert_equal '/pt/administrador', pt_admin_path
+
+      get '/pt/administrador/novo'
+      assert_equal 'admins#new', @response.body
+      assert_equal '/pt/administrador/novo', new_pt_admin_path
     end
   end
 
diff --git a/actionpack/test/template/active_model_helper_test.rb b/actionpack/test/template/active_model_helper_test.rb
index 1a5316a689..47eb620f7a 100644
--- a/actionpack/test/template/active_model_helper_test.rb
+++ b/actionpack/test/template/active_model_helper_test.rb
@@ -118,13 +118,12 @@ class ActiveModelHelperTest < ActionView::TestCase
     setup_user
 
     @response = ActionController::TestResponse.new
+  end
 
-    @controller = Object.new
-    def @controller.url_for(options)
-      options = options.symbolize_keys
+  def url_for(options)
+    options = options.symbolize_keys
 
-      [options[:action], options[:id].to_param].compact.join('/')
-    end
+    [options[:action], options[:id].to_param].compact.join('/')
   end
 
   def test_generic_input_tag
diff --git a/actionpack/test/template/asset_tag_helper_test.rb b/actionpack/test/template/asset_tag_helper_test.rb
index fbd504ae7d..223a430f92 100644
--- a/actionpack/test/template/asset_tag_helper_test.rb
+++ b/actionpack/test/template/asset_tag_helper_test.rb
@@ -34,9 +34,7 @@ class AssetTagHelperTest < ActionView::TestCase
       )
     end
 
-    @controller = Class.new(BasicController) do
-      def url_for(*args) "http://www.example.com" end
-    end.new
+    @controller = BasicController.new
 
     @request = Class.new do
       def protocol() 'http://' end
@@ -49,6 +47,10 @@ class AssetTagHelperTest < ActionView::TestCase
     ActionView::Helpers::AssetTagHelper::reset_javascript_include_default
   end
 
+  def url_for(*args)
+    "http://www.example.com"
+  end
+
   def teardown
     config.perform_caching = false
     ENV.delete('RAILS_ASSET_ID')
@@ -893,25 +895,19 @@ class AssetTagHelperNonVhostTest < ActionView::TestCase
 
   def setup
     super
-    @controller = Class.new(BasicController) do
-      def url_for(options)
-        "http://www.example.com/collaboration/hieraki"
-      end
-    end.new
-
+    @controller = BasicController.new
     @controller.config.relative_url_root = "/collaboration/hieraki"
 
-    @request = Class.new do
-      def protocol
-        'gopher://'
-      end
-    end.new
-
+    @request = Struct.new(:protocol).new("gopher://")
     @controller.request = @request
 
     ActionView::Helpers::AssetTagHelper::reset_javascript_include_default
   end
 
+  def url_for(options)
+    "http://www.example.com/collaboration/hieraki"
+  end
+
   def test_should_compute_proper_path
     assert_dom_equal(%(<link href="http://www.example.com/collaboration/hieraki" rel="alternate" title="RSS" type="application/rss+xml" />), auto_discovery_link_tag)
     assert_dom_equal(%(/collaboration/hieraki/javascripts/xmlhr.js), javascript_path("xmlhr"))
diff --git a/actionpack/test/template/erb/helper.rb b/actionpack/test/template/erb/helper.rb
index 7147178849..799f9e4036 100644
--- a/actionpack/test/template/erb/helper.rb
+++ b/actionpack/test/template/erb/helper.rb
@@ -1,20 +1,13 @@
 module ERBTest
   class ViewContext
-    mock_controller = Class.new do
-      include SharedTestRoutes.url_helpers
-    end
-
+    include SharedTestRoutes.url_helpers
     include ActionView::Helpers::TagHelper
     include ActionView::Helpers::JavaScriptHelper
     include ActionView::Helpers::FormHelper
 
-    attr_accessor :output_buffer
+    attr_accessor :output_buffer, :controller
 
     def protect_against_forgery?() false end
-
-    define_method(:controller) do
-      mock_controller.new
-    end
   end
 
   class BlockTestCase < ActiveSupport::TestCase
diff --git a/actionpack/test/template/form_helper_test.rb b/actionpack/test/template/form_helper_test.rb
index 7c5ccfd6ed..4af38e52dd 100644
--- a/actionpack/test/template/form_helper_test.rb
+++ b/actionpack/test/template/form_helper_test.rb
@@ -63,15 +63,15 @@ class FormHelperTest < ActionView::TestCase
     @post.body        = "Back to the hill and over it again!"
     @post.secret      = 1
     @post.written_on  = Date.new(2004, 6, 15)
+  end
 
-    @controller = Class.new do
-      attr_reader :url_for_options
-      def url_for(options)
-        @url_for_options = options
-        "http://www.example.com"
-      end
+  def url_for(object)
+    @url_for_options = object
+    if object.is_a?(Hash)
+      "http://www.example.com"
+    else
+      super
     end
-    @controller = @controller.new
   end
 
   def test_label
@@ -1348,8 +1348,8 @@ class FormHelperTest < ActionView::TestCase
   def test_form_for_with_hash_url_option
     form_for(:post, @post, :url => {:controller => 'controller', :action => 'action'}) do |f| end
 
-    assert_equal 'controller', @controller.url_for_options[:controller]
-    assert_equal 'action', @controller.url_for_options[:action]
+    assert_equal 'controller', @url_for_options[:controller]
+    assert_equal 'action', @url_for_options[:action]
   end
 
   def test_form_for_with_record_url_option
diff --git a/actionpack/test/template/form_tag_helper_test.rb b/actionpack/test/template/form_tag_helper_test.rb
index 1f26840289..3b8760351e 100644
--- a/actionpack/test/template/form_tag_helper_test.rb
+++ b/actionpack/test/template/form_tag_helper_test.rb
@@ -8,11 +8,15 @@ class FormTagHelperTest < ActionView::TestCase
 
   def setup
     super
-    @controller = Class.new(BasicController) do
-      def url_for(options)
-        "http://www.example.com"
-      end
-    end.new
+    @controller = BasicController.new
+  end
+
+  def url_for(options)
+    if options.is_a?(Hash)
+      "http://www.example.com"
+    else
+      super
+    end
   end
 
   VALID_HTML_ID = /^[A-Za-z][-_:.A-Za-z0-9]*$/ # see http://www.w3.org/TR/html4/types.html#type-name
diff --git a/actionpack/test/template/prototype_helper_test.rb b/actionpack/test/template/prototype_helper_test.rb
index 619293dc43..0ff37f44c2 100644
--- a/actionpack/test/template/prototype_helper_test.rb
+++ b/actionpack/test/template/prototype_helper_test.rb
@@ -47,19 +47,18 @@ class PrototypeHelperBaseTest < ActionView::TestCase
   def setup
     super
     @template = self
-    @controller = Class.new do
-      def url_for(options)
-        if options.is_a?(String)
-          options
-        else
-          url =  "http://www.example.com/"
-          url << options[:action].to_s if options and options[:action]
-          url << "?a=#{options[:a]}" if options && options[:a]
-          url << "&b=#{options[:b]}" if options && options[:a] && options[:b]
-          url
-        end
-      end
-    end.new
+  end
+
+  def url_for(options)
+    if options.is_a?(String)
+      options
+    else
+      url =  "http://www.example.com/"
+      url << options[:action].to_s if options and options[:action]
+      url << "?a=#{options[:a]}" if options && options[:a]
+      url << "&b=#{options[:b]}" if options && options[:a] && options[:b]
+      url
+    end
   end
 
   protected
diff --git a/actionpack/test/template/render_test.rb b/actionpack/test/template/render_test.rb
index e54ebfbf8d..5f33c933db 100644
--- a/actionpack/test/template/render_test.rb
+++ b/actionpack/test/template/render_test.rb
@@ -281,6 +281,10 @@ class CachedViewRenderTest < ActiveSupport::TestCase
     assert_equal ActionView::FileSystemResolver, view_paths.first.class
     setup_view(view_paths)
   end
+
+  def teardown
+    GC.start
+  end
 end
 
 class LazyViewRenderTest < ActiveSupport::TestCase
@@ -294,4 +298,8 @@ class LazyViewRenderTest < ActiveSupport::TestCase
     assert_equal ActionView::FileSystemResolver.new(FIXTURE_LOAD_PATH), view_paths.first
     setup_view(view_paths)
   end
+
+  def teardown
+    GC.start
+  end
 end
diff --git a/actionpack/test/template/scriptaculous_helper_test.rb b/actionpack/test/template/scriptaculous_helper_test.rb
index bebc3cb9f4..233012bfdd 100644
--- a/actionpack/test/template/scriptaculous_helper_test.rb
+++ b/actionpack/test/template/scriptaculous_helper_test.rb
@@ -3,21 +3,16 @@ require 'abstract_unit'
 class ScriptaculousHelperTest < ActionView::TestCase
   tests ActionView::Helpers::ScriptaculousHelper
 
-  def setup
-    super
-    @controller = Class.new do
-      def url_for(options)
-        url =  "http://www.example.com/"
-        url << options[:action].to_s if options and options[:action]
-        url
-      end
-    end.new
+  def url_for(options)
+    url =  "http://www.example.com/"
+    url << options[:action].to_s if options and options[:action]
+    url
   end
-  
+
   def test_effect
     assert_equal "new Effect.Highlight(\"posts\",{});", visual_effect(:highlight, "posts")
     assert_equal "new Effect.Highlight(\"posts\",{});", visual_effect("highlight", :posts)
-    assert_equal "new Effect.Highlight(\"posts\",{});", visual_effect(:highlight, :posts)    
+    assert_equal "new Effect.Highlight(\"posts\",{});", visual_effect(:highlight, :posts)
     assert_equal "new Effect.Fade(\"fademe\",{duration:4.0});", visual_effect(:fade, "fademe", :duration => 4.0)
     assert_equal "new Effect.Shake(element,{});", visual_effect(:shake)
     assert_equal "new Effect.DropOut(\"dropme\",{queue:'end'});", visual_effect(:drop_out, 'dropme', :queue => :end)
@@ -43,7 +38,7 @@ class ScriptaculousHelperTest < ActionView::TestCase
     assert ve[2].include?("scope:'test'")
     assert ve[2].include?("position:'end'")
   end
-  
+
   def test_toggle_effects
     assert_equal "Effect.toggle(\"posts\",'appear',{});", visual_effect(:toggle_appear,  "posts")
     assert_equal "Effect.toggle(\"posts\",'slide',{});",  visual_effect(:toggle_slide,   "posts")
@@ -52,26 +47,26 @@ class ScriptaculousHelperTest < ActionView::TestCase
     assert_equal "Effect.toggle(\"posts\",'slide',{});",  visual_effect("toggle_slide",  "posts")
     assert_equal "Effect.toggle(\"posts\",'blind',{});",  visual_effect("toggle_blind",  "posts")
   end
-  
+
 
   def test_sortable_element
-    assert_dom_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nSortable.create(\"mylist\", {onUpdate:function(){new Ajax.Request('http://www.example.com/order', {asynchronous:true, evalScripts:true, parameters:Sortable.serialize(\"mylist\")})}})\n//]]>\n</script>), 
+    assert_dom_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nSortable.create(\"mylist\", {onUpdate:function(){new Ajax.Request('http://www.example.com/order', {asynchronous:true, evalScripts:true, parameters:Sortable.serialize(\"mylist\")})}})\n//]]>\n</script>),
       sortable_element("mylist", :url => { :action => "order" })
-    assert_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nSortable.create(\"mylist\", {constraint:'horizontal', onUpdate:function(){new Ajax.Request('http://www.example.com/order', {asynchronous:true, evalScripts:true, parameters:Sortable.serialize(\"mylist\")})}, tag:'div'})\n//]]>\n</script>), 
+    assert_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nSortable.create(\"mylist\", {constraint:'horizontal', onUpdate:function(){new Ajax.Request('http://www.example.com/order', {asynchronous:true, evalScripts:true, parameters:Sortable.serialize(\"mylist\")})}, tag:'div'})\n//]]>\n</script>),
       sortable_element("mylist", :tag => "div", :constraint => "horizontal", :url => { :action => "order" })
-    assert_dom_equal %|<script type=\"text/javascript\">\n//<![CDATA[\nSortable.create(\"mylist\", {constraint:'horizontal', containment:['list1','list2'], onUpdate:function(){new Ajax.Request('http://www.example.com/order', {asynchronous:true, evalScripts:true, parameters:Sortable.serialize(\"mylist\")})}})\n//]]>\n</script>|, 
+    assert_dom_equal %|<script type=\"text/javascript\">\n//<![CDATA[\nSortable.create(\"mylist\", {constraint:'horizontal', containment:['list1','list2'], onUpdate:function(){new Ajax.Request('http://www.example.com/order', {asynchronous:true, evalScripts:true, parameters:Sortable.serialize(\"mylist\")})}})\n//]]>\n</script>|,
       sortable_element("mylist", :containment => ['list1','list2'], :constraint => "horizontal", :url => { :action => "order" })
-    assert_dom_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nSortable.create(\"mylist\", {constraint:'horizontal', containment:'list1', onUpdate:function(){new Ajax.Request('http://www.example.com/order', {asynchronous:true, evalScripts:true, parameters:Sortable.serialize(\"mylist\")})}})\n//]]>\n</script>), 
+    assert_dom_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nSortable.create(\"mylist\", {constraint:'horizontal', containment:'list1', onUpdate:function(){new Ajax.Request('http://www.example.com/order', {asynchronous:true, evalScripts:true, parameters:Sortable.serialize(\"mylist\")})}})\n//]]>\n</script>),
       sortable_element("mylist", :containment => 'list1', :constraint => "horizontal", :url => { :action => "order" })
   end
-  
+
   def test_draggable_element
     assert_dom_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nnew Draggable(\"product_13\", {})\n//]]>\n</script>),
       draggable_element("product_13")
     assert_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nnew Draggable(\"product_13\", {revert:true})\n//]]>\n</script>),
       draggable_element("product_13", :revert => true)
   end
-  
+
   def test_drop_receiving_element
     assert_dom_equal %(<script type=\"text/javascript\">\n//<![CDATA[\nDroppables.add(\"droptarget1\", {onDrop:function(element){new Ajax.Request('http://www.example.com/', {asynchronous:true, evalScripts:true, parameters:'id=' + encodeURIComponent(element.id)})}})\n//]]>\n</script>),
       drop_receiving_element("droptarget1")
diff --git a/actionpack/test/template/url_helper_test.rb b/actionpack/test/template/url_helper_test.rb
index 87b2e59255..35e73fbf1e 100644
--- a/actionpack/test/template/url_helper_test.rb
+++ b/actionpack/test/template/url_helper_test.rb
@@ -3,58 +3,73 @@ require 'abstract_unit'
 require 'active_support/ordered_options'
 require 'controller/fake_controllers'
 
-class UrlHelperTest < ActionView::TestCase
-
-  def setup
-    super
-    @controller = Class.new(BasicController) do
-      attr_accessor :url
-      def url_for(options)
-        url
-      end
-    end
+class UrlHelperTest < ActiveSupport::TestCase
+
+  # In a few cases, the helper proxies to 'controller'
+  # or request.
+  #
+  # In those cases, we'll set up a simple mock
+  attr_accessor :controller, :request
+
+  routes = ActionDispatch::Routing::RouteSet.new
+  routes.draw do
+    match "/" => "foo#bar"
+    match "/other" => "foo#other"
+  end
+
+  include routes.url_helpers
+
+  include ActionView::Helpers::UrlHelper
+  include ActionDispatch::Assertions::DomAssertions
+  include ActionView::Context
+  include RenderERBUtils
+
+  # self.default_url_options = {:host => "www.example.com"}
+
+  # TODO: This shouldn't be needed (see template.rb:53)
+  def assigns
+    {}
+  end
 
-    @controller = @controller.new
-    @request = @controller.request = ActionDispatch::TestRequest.new
-    @controller.url = "http://www.example.com"
+  def abcd(hash = {})
+    hash_for(:a => :b, :c => :d).merge(hash)
   end
 
+  def hash_for(opts = {})
+    {:controller => "foo", :action => "bar"}.merge(opts)
+  end
+  alias url_hash hash_for
+
   def test_url_for_escapes_urls
-    @controller.url = "http://www.example.com?a=b&c=d"
-    assert_equal "http://www.example.com?a=b&c=d", url_for(:a => 'b', :c => 'd')
-    assert_equal "http://www.example.com?a=b&amp;c=d", url_for(:a => 'b', :c => 'd', :escape => true)
-    assert_equal "http://www.example.com?a=b&c=d", url_for(:a => 'b', :c => 'd', :escape => false)
+    assert_equal "/?a=b&c=d", url_for(abcd)
+    assert_equal "/?a=b&amp;c=d", url_for(abcd(:escape => true))
+    assert_equal "/?a=b&c=d", url_for(abcd(:escape => false))
   end
 
   def test_url_for_escaping_is_safety_aware
-    assert url_for(:a => 'b', :c => 'd', :escape => true).html_safe?, "escaped urls should be html_safe?"
-    assert !url_for(:a => 'b', :c => 'd', :escape => false).html_safe?, "non-escaped urls shouldn't be safe"
+    assert url_for(abcd(:escape => true)).html_safe?, "escaped urls should be html_safe?"
+    assert !url_for(abcd(:escape => false)).html_safe?, "non-escaped urls should not be html_safe?"
   end
 
   def test_url_for_escapes_url_once
-    @controller.url = "http://www.example.com?a=b&amp;c=d"
-    assert_equal "http://www.example.com?a=b&amp;c=d", url_for("http://www.example.com?a=b&amp;c=d")
+    assert_equal "/?a=b&amp;c=d", url_for("/?a=b&amp;c=d")
   end
 
   def test_url_for_with_back
-    @request.env['HTTP_REFERER'] = 'http://www.example.com/referer'
+    referer = 'http://www.example.com/referer'
+    @controller = Struct.new(:request).new(Struct.new(:env).new({"HTTP_REFERER" => referer}))
+
     assert_equal 'http://www.example.com/referer', url_for(:back)
   end
 
   def test_url_for_with_back_and_no_referer
-    @request.env['HOST_NAME'] = 'www.example.com'
-    @request.env['PATH_INFO'] = '/weblog/show'
+    @controller = Struct.new(:request).new(Struct.new(:env).new({}))
     assert_equal 'javascript:history.back()', url_for(:back)
   end
 
   def test_url_for_from_hash_doesnt_escape_ampersand
-    @controller = TestController.new
-    @view = ActionView::Base.new
-    @view.controller = @controller
-
-    path = @view.url_for(:controller => :cheeses, :foo => :bar, :baz => :quux)
-
-    assert_equal '/cheeses?baz=quux&foo=bar', sort_query_string_params(path)
+    path = url_for(hash_for(:foo => :bar, :baz => :quux))
+    assert_equal '/?baz=quux&foo=bar', sort_query_string_params(path)
   end
 
   # todo: missing test cases
@@ -118,65 +133,54 @@ class UrlHelperTest < ActionView::TestCase
   end
 
   def test_link_tag_without_host_option
-    ActionController::Base.class_eval { attr_accessor :url }
-    url = {:controller => 'weblog', :action => 'show'}
-    @controller = ActionController::Base.new
-    @controller.request = ActionController::TestRequest.new
-    assert_dom_equal(%q{<a href="/weblog/show">Test Link</a>}, link_to('Test Link', url))
+    assert_dom_equal(%q{<a href="/">Test Link</a>}, link_to('Test Link', url_hash))
   end
 
   def test_link_tag_with_host_option
-    ActionController::Base.class_eval { attr_accessor :url }
-    url = {:controller => 'weblog', :action => 'show', :host => 'www.example.com'}
-    @controller = ActionController::Base.new
-    @controller.request = ActionController::TestRequest.new
-    assert_dom_equal(%q{<a href="http://www.example.com/weblog/show">Test Link</a>}, link_to('Test Link', url))
+    hash = hash_for(:host => "www.example.com")
+    expected = %q{<a href="http://www.example.com/">Test Link</a>}
+    assert_dom_equal(expected, link_to('Test Link', hash))
   end
 
   def test_link_tag_with_query
-    assert_dom_equal "<a href=\"http://www.example.com?q1=v1&amp;q2=v2\">Hello</a>", link_to("Hello", "http://www.example.com?q1=v1&amp;q2=v2")
+    expected = %{<a href="http://www.example.com?q1=v1&amp;q2=v2">Hello</a>}
+    assert_dom_equal expected, link_to("Hello", "http://www.example.com?q1=v1&amp;q2=v2")
   end
 
   def test_link_tag_with_query_and_no_name
-    assert_dom_equal "<a href=\"http://www.example.com?q1=v1&amp;q2=v2\">http://www.example.com?q1=v1&amp;q2=v2</a>", link_to(nil, "http://www.example.com?q1=v1&amp;q2=v2")
+    link = link_to(nil, "http://www.example.com?q1=v1&amp;q2=v2")
+    expected = %{<a href="http://www.example.com?q1=v1&amp;q2=v2">http://www.example.com?q1=v1&amp;q2=v2</a>}
+    assert_dom_equal expected, link
   end
 
   def test_link_tag_with_back
-    @request.env['HOST_NAME'] = 'www.example.com'
-    @request.env['PATH_INFO'] = '/weblog/show'
-    @request.env['HTTP_REFERER'] = 'http://www.example.com/referer'
-    assert_dom_equal "<a href=\"http://www.example.com/referer\">go back</a>", link_to('go back', :back)
+    env = {"HTTP_REFERER" => "http://www.example.com/referer"}
+    @controller = Struct.new(:request).new(Struct.new(:env).new(env))
+    expected = %{<a href="#{env["HTTP_REFERER"]}">go back</a>}
+    assert_dom_equal expected, link_to('go back', :back)
   end
 
   def test_link_tag_with_back_and_no_referer
-    @request.env['HOST_NAME'] = 'www.example.com'
-    @request.env['PATH_INFO'] = '/weblog/show'
-    assert_dom_equal "<a href=\"javascript:history.back()\">go back</a>", link_to('go back', :back)
-  end
-
-  def test_link_tag_with_back
-    @request.env['HOST_NAME'] = 'www.example.com'
-    @request.env['PATH_INFO'] = '/weblog/show'
-    @request.env['HTTP_REFERER'] = 'http://www.example.com/referer'
-    assert_dom_equal "<a href=\"http://www.example.com/referer\">go back</a>", link_to('go back', :back)
-  end
-
-  def test_link_tag_with_back_and_no_referer
-    @request.env['HOST_NAME'] = 'www.example.com'
-    @request.env['PATH_INFO'] = '/weblog/show'
-    assert_dom_equal "<a href=\"javascript:history.back()\">go back</a>", link_to('go back', :back)
+    @controller = Struct.new(:request).new(Struct.new(:env).new({}))
+    link = link_to('go back', :back)
+    assert_dom_equal %{<a href="javascript:history.back()">go back</a>}, link
   end
 
   def test_link_tag_with_img
-    assert_dom_equal "<a href=\"http://www.example.com\"><img src='/favicon.jpg' alt=\"Favicon\"  /></a>", link_to(image_tag("/favicon.jpg"), "http://www.example.com")
+    link = link_to("<img src='/favicon.jpg' />".html_safe, "/")
+    expected = %{<a href="/"><img src='/favicon.jpg' /></a>}
+    assert_dom_equal expected, link
   end
 
   def test_link_with_nil_html_options
-    assert_dom_equal "<a href=\"http://www.example.com\">Hello</a>", link_to("Hello", {:action => 'myaction'}, nil)
+    link = link_to("Hello", url_hash, nil)
+    assert_dom_equal %{<a href="/">Hello</a>}, link
   end
 
   def test_link_tag_with_custom_onclick
-    assert_dom_equal "<a href=\"http://www.example.com\" onclick=\"alert('yay!')\">Hello</a>", link_to("Hello", "http://www.example.com", :onclick => "alert('yay!')")
+    link = link_to("Hello", "http://www.example.com", :onclick => "alert('yay!')")
+    expected = %{<a href="http://www.example.com" onclick="alert('yay!')">Hello</a>}
+    assert_dom_equal expected, link
   end
 
   def test_link_tag_with_javascript_confirm
@@ -238,91 +242,106 @@ class UrlHelperTest < ActionView::TestCase
   end
 
   def test_link_tag_using_block_in_erb
-    output_buffer = link_to("http://example.com") { concat("Example site") }
-    assert_equal '<a href="http://example.com">Example site</a>', output_buffer
+    out = render_erb %{<%= link_to('/') do %>Example site<% end %>}
+    assert_equal '<a href="/">Example site</a>', out
   end
 
   def test_link_to_unless
-    assert_equal "Showing", link_to_unless(true, "Showing", :action => "show", :controller => "weblog")
-    assert_dom_equal "<a href=\"http://www.example.com\">Listing</a>", link_to_unless(false, "Listing", :action => "list", :controller => "weblog")
-    assert_equal "Showing", link_to_unless(true, "Showing", :action => "show", :controller => "weblog", :id => 1)
-    assert_equal "<strong>Showing</strong>", link_to_unless(true, "Showing", :action => "show", :controller => "weblog", :id => 1) { |name, options, html_options|
-      "<strong>#{name}</strong>"
-    }
-    assert_equal "<strong>Showing</strong>", link_to_unless(true, "Showing", :action => "show", :controller => "weblog", :id => 1) { |name|
-      "<strong>#{name}</strong>"
-    }
-    assert_equal "test", link_to_unless(true, "Showing", :action => "show", :controller => "weblog", :id => 1) {
-      "test"
-    }
+    assert_equal "Showing", link_to_unless(true, "Showing", url_hash)
+
+    assert_dom_equal %{<a href="/">Listing</a>},
+      link_to_unless(false, "Listing", url_hash)
+
+    assert_equal "Showing", link_to_unless(true, "Showing", url_hash)
+
+    assert_equal "<strong>Showing</strong>",
+      link_to_unless(true, "Showing", url_hash) { |name|
+        "<strong>#{name}</strong>"
+      }
+
+    assert_equal "<strong>Showing</strong>",
+      link_to_unless(true, "Showing", url_hash) { |name|
+        "<strong>#{name}</strong>"
+      }
+
+    assert_equal "test",
+      link_to_unless(true, "Showing", url_hash) {
+        "test"
+      }
   end
 
   def test_link_to_if
-    assert_equal "Showing", link_to_if(false, "Showing", :action => "show", :controller => "weblog")
-    assert_dom_equal "<a href=\"http://www.example.com\">Listing</a>", link_to_if(true, "Listing", :action => "list", :controller => "weblog")
-    assert_equal "Showing", link_to_if(false, "Showing", :action => "show", :controller => "weblog", :id => 1)
+    assert_equal "Showing", link_to_if(false, "Showing", url_hash)
+    assert_dom_equal %{<a href="/">Listing</a>}, link_to_if(true, "Listing", url_hash)
+    assert_equal "Showing", link_to_if(false, "Showing", url_hash)
+  end
+
+  def request_for_url(url)
+    env = Rack::MockRequest.env_for("http://www.example.com#{url}")
+    ActionDispatch::Request.new(env)
   end
 
   def test_current_page_with_simple_url
-    @request.env['HTTP_HOST'] = 'www.example.com'
-    @request.env['PATH_INFO'] = '/weblog/show'
-    @controller.url = "http://www.example.com/weblog/show"
-    assert current_page?({ :action => "show", :controller => "weblog" })
-    assert current_page?("http://www.example.com/weblog/show")
+    @request = request_for_url("/")
+    assert current_page?(url_hash)
+    assert current_page?("http://www.example.com/")
   end
 
   def test_current_page_ignoring_params
-    @request.env['HTTP_HOST'] = 'www.example.com'
-    @request.env['PATH_INFO'] = '/weblog/show'
-    @request.env['QUERY_STRING'] = 'order=desc&page=1'
-    @controller.url = "http://www.example.com/weblog/show?order=desc&page=1"
-    assert current_page?({ :action => "show", :controller => "weblog" })
-    assert current_page?("http://www.example.com/weblog/show")
+    @request = request_for_url("/?order=desc&page=1")
+
+    assert current_page?(url_hash)
+    assert current_page?("http://www.example.com/")
   end
 
   def test_current_page_with_params_that_match
-    @request.env['HTTP_HOST'] = 'www.example.com'
-    @request.env['PATH_INFO'] = '/weblog/show'
-    @request.env['QUERY_STRING'] = 'order=desc&page=1'
-    @controller.url = "http://www.example.com/weblog/show?order=desc&page=1"
-    assert current_page?({ :action => "show", :controller => "weblog", :order => "desc", :page => "1" })
-    assert current_page?("http://www.example.com/weblog/show?order=desc&amp;page=1")
+    @request = request_for_url("/?order=desc&page=1")
+
+    assert current_page?(hash_for(:order => "desc", :page => "1"))
+    assert current_page?("http://www.example.com/?order=desc&amp;page=1")
   end
 
   def test_link_unless_current
-    @request.env['HTTP_HOST'] = 'www.example.com'
-    @request.env['PATH_INFO'] = '/weblog/show'
-    @controller.url = "http://www.example.com/weblog/show"
-    assert_equal "Showing", link_to_unless_current("Showing", { :action => "show", :controller => "weblog" })
-    assert_equal "Showing", link_to_unless_current("Showing", "http://www.example.com/weblog/show")
-
-    @request.env['QUERY_STRING'] = 'order=desc'
-    @controller.url = "http://www.example.com/weblog/show"
-    assert_equal "Showing", link_to_unless_current("Showing", { :action => "show", :controller => "weblog" })
-    assert_equal "Showing", link_to_unless_current("Showing", "http://www.example.com/weblog/show")
-
-    @request.env['QUERY_STRING'] = 'order=desc&page=1'
-    @controller.url = "http://www.example.com/weblog/show?order=desc&page=1"
-    assert_equal "Showing", link_to_unless_current("Showing", { :action => "show", :controller => "weblog", :order=>'desc', :page=>'1' })
-    assert_equal "Showing", link_to_unless_current("Showing", "http://www.example.com/weblog/show?order=desc&page=1")
-    assert_equal "Showing", link_to_unless_current("Showing", "http://www.example.com/weblog/show?order=desc&page=1")
-
-    @request.env['QUERY_STRING'] = 'order=desc'
-    @controller.url = "http://www.example.com/weblog/show?order=asc"
-    assert_equal "<a href=\"http://www.example.com/weblog/show?order=asc\">Showing</a>", link_to_unless_current("Showing", { :action => "show", :controller => "weblog" })
-    assert_equal "<a href=\"http://www.example.com/weblog/show?order=asc\">Showing</a>", link_to_unless_current("Showing", "http://www.example.com/weblog/show?order=asc")
-
-    @request.env['QUERY_STRING'] = 'order=desc&page=1'
-    @controller.url = "http://www.example.com/weblog/show?order=desc&page=2"
-    assert_equal "<a href=\"http://www.example.com/weblog/show?order=desc&page=2\">Showing</a>", link_to_unless_current("Showing", { :action => "show", :controller => "weblog" })
-    assert_equal "<a href=\"http://www.example.com/weblog/show?order=desc&amp;page=2\">Showing</a>", link_to_unless_current("Showing", "http://www.example.com/weblog/show?order=desc&page=2")
-
-    @request.env['QUERY_STRING'] = ''
-    @controller.url = "http://www.example.com/weblog/list"
-    assert_equal "<a href=\"http://www.example.com/weblog/list\">Listing</a>",
-      link_to_unless_current("Listing", :action => "list", :controller => "weblog")
-    assert_equal "<a href=\"http://www.example.com/weblog/list\">Listing</a>",
-      link_to_unless_current("Listing", "http://www.example.com/weblog/list")
+    @request = request_for_url("/")
+
+    assert_equal "Showing",
+      link_to_unless_current("Showing", url_hash)
+    assert_equal "Showing",
+      link_to_unless_current("Showing", "http://www.example.com/")
+
+    @request = request_for_url("/?order=desc")
+
+    assert_equal "Showing",
+      link_to_unless_current("Showing", url_hash)
+    assert_equal "Showing",
+      link_to_unless_current("Showing", "http://www.example.com/")
+
+    @request = request_for_url("/?order=desc&page=1")
+
+    assert_equal "Showing",
+      link_to_unless_current("Showing", hash_for(:order=>'desc', :page=>'1'))
+    assert_equal "Showing",
+      link_to_unless_current("Showing", "http://www.example.com/?order=desc&page=1")
+
+    @request = request_for_url("/?order=desc")
+
+    assert_equal %{<a href="/?order=asc">Showing</a>},
+      link_to_unless_current("Showing", hash_for(:order => :asc))
+    assert_equal %{<a href="http://www.example.com/?order=asc">Showing</a>},
+      link_to_unless_current("Showing", "http://www.example.com/?order=asc")
+
+    @request = request_for_url("/?order=desc")
+    assert_equal %{<a href="/?order=desc&page=2\">Showing</a>},
+      link_to_unless_current("Showing", hash_for(:order => "desc", :page => 2))
+    assert_equal %{<a href="http://www.example.com/?order=desc&amp;page=2">Showing</a>},
+      link_to_unless_current("Showing", "http://www.example.com/?order=desc&page=2")
+
+    @request = request_for_url("/show")
+
+    assert_equal %{<a href="/">Listing</a>},
+      link_to_unless_current("Listing", url_hash)
+    assert_equal %{<a href="http://www.example.com/">Listing</a>},
+      link_to_unless_current("Listing", "http://www.example.com/")
   end
 
   def test_mail_to
@@ -352,7 +371,8 @@ class UrlHelperTest < ActionView::TestCase
   end
 
   def test_mail_to_with_img
-    assert_dom_equal %(<a href="mailto:feedback@example.com"><img src="/feedback.png" /></a>), mail_to('feedback@example.com', '<img src="/feedback.png" />'.html_safe)
+    assert_dom_equal %(<a href="mailto:feedback@example.com"><img src="/feedback.png" /></a>),
+      mail_to('feedback@example.com', '<img src="/feedback.png" />'.html_safe)
   end
 
   def test_mail_to_with_hex
@@ -369,6 +389,7 @@ class UrlHelperTest < ActionView::TestCase
     assert_dom_equal "<script type=\"text/javascript\">eval(decodeURIComponent('%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%27%3c%61%20%68%72%65%66%3d%22%6d%61%69%6c%74%6f%3a%6d%65%40%64%6f%6d%61%69%6e%2e%63%6f%6d%22%3e%6d%65%28%61%74%29%64%6f%6d%61%69%6e%28%64%6f%74%29%63%6f%6d%3c%2f%61%3e%27%29%3b'))</script>", mail_to("me@domain.com", nil, :encode => "javascript", :replace_at => "(at)", :replace_dot => "(dot)")
   end
 
+  # TODO: button_to looks at this ... why?
   def protect_against_forgery?
     false
   end
@@ -383,6 +404,15 @@ end
 
 class UrlHelperControllerTest < ActionController::TestCase
   class UrlHelperController < ActionController::Base
+    test_routes do |map|
+      match 'url_helper_controller_test/url_helper/show_named_route',
+        :to => 'url_helper_controller_test/url_helper#show_named_route',
+        :as => :show_named_route
+
+      map.connect ":controller/:action/:id"
+      # match "/:controller(/:action(/:id))"
+    end
+
     def show_url_for
       render :inline => "<%= url_for :controller => 'url_helper_controller_test/url_helper', :action => 'show_url_for' %>"
     end
@@ -406,17 +436,14 @@ class UrlHelperControllerTest < ActionController::TestCase
   end
 
   def test_named_route_url_shows_host_and_path
-    with_url_helper_routing do
-      get :show_named_route, :kind => 'url'
-      assert_equal 'http://test.host/url_helper_controller_test/url_helper/show_named_route', @response.body
-    end
+    get :show_named_route, :kind => 'url'
+    assert_equal 'http://test.host/url_helper_controller_test/url_helper/show_named_route',
+      @response.body
   end
 
   def test_named_route_path_shows_only_path
-    with_url_helper_routing do
-      get :show_named_route, :kind => 'path'
-      assert_equal '/url_helper_controller_test/url_helper/show_named_route', @response.body
-    end
+    get :show_named_route, :kind => 'path'
+    assert_equal '/url_helper_controller_test/url_helper/show_named_route', @response.body
   end
 
   def test_url_for_nil_returns_current_path
@@ -431,24 +458,16 @@ class UrlHelperControllerTest < ActionController::TestCase
       end
     end
 
-    with_url_helper_routing do
-      get :show_named_route, :kind => 'url'
-      assert_equal 'http://testtwo.host/url_helper_controller_test/url_helper/show_named_route', @response.body
-    end
+    get :show_named_route, :kind => 'url'
+    assert_equal 'http://testtwo.host/url_helper_controller_test/url_helper/show_named_route', @response.body
   end
-
-  protected
-    def with_url_helper_routing
-      with_routing do |set|
-        set.draw do |map|
-          match 'url_helper_controller_test/url_helper/show_named_route', :to => 'url_helper_controller_test/url_helper#show_named_route', :as => :show_named_route
-        end
-        yield
-      end
-    end
 end
 
 class TasksController < ActionController::Base
+  test_routes do
+    resources :tasks
+  end
+
   def index
     render_default
   end
@@ -468,36 +487,19 @@ class TasksController < ActionController::Base
 end
 
 class LinkToUnlessCurrentWithControllerTest < ActionController::TestCase
-  def setup
-    super
-    @controller = TasksController.new
-  end
+  tests TasksController
 
   def test_link_to_unless_current_to_current
-    with_restful_routing do
-      get :index
-      assert_equal "tasks\ntasks", @response.body
-    end
+    get :index
+    assert_equal "tasks\ntasks", @response.body
   end
 
   def test_link_to_unless_current_shows_link
-    with_restful_routing do
-      get :show, :id => 1
-      assert_equal "<a href=\"/tasks\">tasks</a>\n" +
-        "<a href=\"#{@request.protocol}#{@request.host_with_port}/tasks\">tasks</a>",
-        @response.body
-    end
+    get :show, :id => 1
+    assert_equal "<a href=\"/tasks\">tasks</a>\n" +
+      "<a href=\"#{@request.protocol}#{@request.host_with_port}/tasks\">tasks</a>",
+      @response.body
   end
-
-  protected
-    def with_restful_routing
-      with_routing do |set|
-        set.draw do |map|
-          resources :tasks
-        end
-        yield
-      end
-    end
 end
 
 class Workshop
@@ -537,6 +539,12 @@ class Session
 end
 
 class WorkshopsController < ActionController::Base
+  test_routes do
+    resources :workshops do
+      resources :sessions
+    end
+  end
+
   def index
     @workshop = Workshop.new(nil)
     render :inline => "<%= url_for(@workshop) %>\n<%= link_to('Workshop', @workshop) %>"
@@ -551,6 +559,12 @@ class WorkshopsController < ActionController::Base
 end
 
 class SessionsController < ActionController::Base
+  test_routes do
+    resources :workshops do
+      resources :sessions
+    end
+  end
+
   def index
     @workshop = Workshop.new(params[:workshop_id])
     @session = Session.new(nil)
@@ -567,56 +581,31 @@ class SessionsController < ActionController::Base
 end
 
 class PolymorphicControllerTest < ActionController::TestCase
-  def setup
-    super
-    @response = ActionController::TestResponse.new
-  end
-
   def test_new_resource
     @controller = WorkshopsController.new
 
-    with_restful_routing do
-      get :index
-      assert_equal "/workshops\n<a href=\"/workshops\">Workshop</a>", @response.body
-    end
+    get :index
+    assert_equal "/workshops\n<a href=\"/workshops\">Workshop</a>", @response.body
   end
 
   def test_existing_resource
     @controller = WorkshopsController.new
 
-    with_restful_routing do
-      get :show, :id => 1
-      assert_equal "/workshops/1\n<a href=\"/workshops/1\">Workshop</a>", @response.body
-    end
+    get :show, :id => 1
+    assert_equal "/workshops/1\n<a href=\"/workshops/1\">Workshop</a>", @response.body
   end
 
   def test_new_nested_resource
     @controller = SessionsController.new
 
-    with_restful_routing do
-      get :index, :workshop_id => 1
-      assert_equal "/workshops/1/sessions\n<a href=\"/workshops/1/sessions\">Session</a>", @response.body
-    end
+    get :index, :workshop_id => 1
+    assert_equal "/workshops/1/sessions\n<a href=\"/workshops/1/sessions\">Session</a>", @response.body
   end
-
+  
   def test_existing_nested_resource
     @controller = SessionsController.new
-
-    with_restful_routing do
-      get :show, :workshop_id => 1, :id => 1
-      assert_equal "/workshops/1/sessions/1\n<a href=\"/workshops/1/sessions/1\">Session</a>", @response.body
-    end
+  
+    get :show, :workshop_id => 1, :id => 1
+    assert_equal "/workshops/1/sessions/1\n<a href=\"/workshops/1/sessions/1\">Session</a>", @response.body
   end
-
-  protected
-    def with_restful_routing
-      with_routing do |set|
-        set.draw do |map|
-          resources :workshops do
-            resources :sessions
-          end
-        end
-        yield
-      end
-    end
 end
diff --git a/activemodel/lib/active_model/errors.rb b/activemodel/lib/active_model/errors.rb
index 8d28040c32..64b28f6def 100644
--- a/activemodel/lib/active_model/errors.rb
+++ b/activemodel/lib/active_model/errors.rb
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 require 'active_support/core_ext/array/wrap'
 require 'active_support/core_ext/string/inflections'
 require 'active_support/core_ext/object/blank'
diff --git a/activemodel/test/cases/validations/i18n_validation_test.rb b/activemodel/test/cases/validations/i18n_validation_test.rb
index 38844bb1fa..7dd82e711d 100644
--- a/activemodel/test/cases/validations/i18n_validation_test.rb
+++ b/activemodel/test/cases/validations/i18n_validation_test.rb
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 require "cases/helper"
 require 'cases/tests_database'
 require 'models/person'
@@ -41,6 +43,14 @@ class I18nValidationTest < ActiveModel::TestCase
     @person.errors.add_on_blank :title, 'custom'
   end
 
+  def test_full_message_encoding
+    I18n.backend.store_translations('en', :errors => {
+      :messages => { :too_short => '猫舌' }})
+    Person.validates_length_of :title, :within => 3..5
+    @person.valid?
+    assert_equal ['Title 猫舌'], @person.errors.full_messages
+  end
+
   def test_errors_full_messages_translates_human_attribute_name_for_model_attributes
     @person.errors.add(:name, 'not found')
     Person.expects(:human_attribute_name).with(:name, :default => 'Name').returns("Person's name")
diff --git a/activerecord/CHANGELOG b/activerecord/CHANGELOG
index e379f4f967..e0625c3dbb 100644
--- a/activerecord/CHANGELOG
+++ b/activerecord/CHANGELOG
@@ -1,5 +1,15 @@
 *Rails 3.0.0 [Beta 2] (pending)*
 
+* Add Relation extensions. [Pratik Naik]
+
+  users = User.where(:admin => true).extending(User::AdminPowers)
+
+  latest_users = User.order('created_at DESC') do
+    def posts_count
+      Post.count(:user_id => to_a.map(&:id))
+    end
+  end
+
 * To prefix the table names of all models in a module, define self.table_name_prefix on the module.  #4032 [Andrew White]
 
 * Silenced "SHOW FIELDS" and "SET SQL_AUTO_IS_NULL=0" statements from the MySQL driver to improve log signal to noise ration in development [DHH]
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb
index 7406daf837..20a8754b7c 100755
--- a/activerecord/lib/active_record/associations.rb
+++ b/activerecord/lib/active_record/associations.rb
@@ -1495,14 +1495,6 @@ module ActiveRecord
         # finder conditions.
         def configure_dependency_for_has_many(reflection, extra_conditions = nil)
           if reflection.options.include?(:dependent)
-            # Add polymorphic type if the :as option is present
-            dependent_conditions = []
-            dependent_conditions << "#{reflection.primary_key_name} = \#{record.#{reflection.name}.send(:owner_quoted_id)}"
-            dependent_conditions << "#{reflection.options[:as]}_type = '#{base_class.name}'" if reflection.options[:as]
-            dependent_conditions << sanitize_sql(reflection.options[:conditions], reflection.table_name) if reflection.options[:conditions]
-            dependent_conditions << extra_conditions if extra_conditions
-            dependent_conditions = dependent_conditions.collect {|where| "(#{where})" }.join(" AND ")
-            dependent_conditions = dependent_conditions.gsub('@', '\@')
             case reflection.options[:dependent]
               when :destroy
                 method_name = "has_many_dependent_destroy_for_#{reflection.name}".to_sym
@@ -1511,51 +1503,30 @@ module ActiveRecord
                 end
                 before_destroy method_name
               when :delete_all
-                # before_destroy do |record|
-                #   self.class.send(:delete_all_has_many_dependencies,
-                #     record,
-                #     "posts",
-                #     Post,
-                #     %@...@) # this is a string literal like %(...)
-                #   end
-                # end
-                module_eval <<-CALLBACK
-                  before_destroy do |record|
-                    self.class.send(:delete_all_has_many_dependencies,
-                      record,
-                      "#{reflection.name}",
-                      #{reflection.class_name},
-                      %@#{dependent_conditions}@)
-                  end
-                CALLBACK
+                before_destroy do |record|
+                  self.class.send(:delete_all_has_many_dependencies,
+                  record,
+                  reflection.name,
+                  reflection.klass,
+                  reflection.dependent_conditions(record, self.class, extra_conditions))
+                end
               when :nullify
-                # before_destroy do |record|
-                #   self.class.send(:nullify_has_many_dependencies,
-                #     record,
-                #     "posts",
-                #     Post,
-                #     "user_id",
-                #     %@...@) # this is a string literal like %(...)
-                #   end
-                # end
-                module_eval <<-CALLBACK
-                  before_destroy do |record|
-                    self.class.send(:nullify_has_many_dependencies,
-                      record,
-                      "#{reflection.name}",
-                      #{reflection.class_name},
-                      "#{reflection.primary_key_name}",
-                      %@#{dependent_conditions}@)
-                  end
-                CALLBACK
-                when :restrict
-                  method_name = "has_many_dependent_restrict_for_#{reflection.name}".to_sym
-                  define_method(method_name) do
-                    unless send(reflection.name).empty?
-                      raise DeleteRestrictionError.new(reflection)
-                    end
+                before_destroy do |record|
+                  self.class.send(:nullify_has_many_dependencies,
+                  record,
+                  reflection.name,
+                  reflection.klass,
+                  reflection.primary_key_name,
+                  reflection.dependent_conditions(record, self.class, extra_conditions))
+                end
+              when :restrict
+                method_name = "has_many_dependent_restrict_for_#{reflection.name}".to_sym
+                define_method(method_name) do
+                  unless send(reflection.name).empty?
+                    raise DeleteRestrictionError.new(reflection)
                   end
-                  before_destroy method_name
+                end
+                before_destroy method_name
               else
                 raise ArgumentError, "The :dependent option expects either :destroy, :delete_all, :nullify or :restrict (#{reflection.options[:dependent].inspect})"
             end
diff --git a/activerecord/lib/active_record/associations/through_association_scope.rb b/activerecord/lib/active_record/associations/through_association_scope.rb
index 6f0f698f1e..1d2f323112 100644
--- a/activerecord/lib/active_record/associations/through_association_scope.rb
+++ b/activerecord/lib/active_record/associations/through_association_scope.rb
@@ -135,7 +135,7 @@ module ActiveRecord
       def build_through_conditions
         conditions = @reflection.through_reflection.options[:conditions]
         if conditions.is_a?(Hash)
-          interpolate_sql(sanitize_sql(conditions)).gsub(
+          interpolate_sql(@reflection.through_reflection.klass.send(:sanitize_sql, conditions)).gsub(
             @reflection.quoted_table_name,
             @reflection.through_reflection.quoted_table_name)
         elsif conditions
diff --git a/activerecord/lib/active_record/named_scope.rb b/activerecord/lib/active_record/named_scope.rb
index 9abf979cd0..632322b517 100644
--- a/activerecord/lib/active_record/named_scope.rb
+++ b/activerecord/lib/active_record/named_scope.rb
@@ -8,16 +8,15 @@ module ActiveRecord
     extend ActiveSupport::Concern
 
     module ClassMethods
-      # Returns a relation if invoked without any arguments.
+      # Returns an anonymous scope.
       #
       #   posts = Post.scoped
       #   posts.size # Fires "select count(*) from  posts" and returns the count
       #   posts.each {|p| puts p.name } # Fires "select * from posts" and loads post objects
       #
-      # Returns an anonymous named scope if any options are supplied.
-      #
-      #   shirts = Shirt.scoped(:conditions => {:color => 'red'})
-      #   shirts = shirts.scoped(:include => :washing_instructions)
+      #   fruits = Fruit.scoped
+      #   fruits = fruits.where(:colour => 'red') if options[:red_only]
+      #   fruits = fruits.limit(10) if limited?
       #
       # Anonymous \scopes tend to be useful when procedurally generating complex queries, where passing
       # intermediate values (scopes) around as first-class objects is convenient.
@@ -25,7 +24,8 @@ module ActiveRecord
       # You can define a scope that applies to all finders using ActiveRecord::Base.default_scope.
       def scoped(options = {}, &block)
         if options.present?
-          Scope.init(self, options, &block)
+          relation = scoped.apply_finder_options(options)
+          block_given? ? relation.extending(Module.new(&block)) : relation
         else
           current_scoped_methods ? unscoped.merge(current_scoped_methods) : unscoped.clone
         end
@@ -36,21 +36,21 @@ module ActiveRecord
       end
 
       # Adds a class method for retrieving and querying objects. A scope represents a narrowing of a database query,
-      # such as <tt>:conditions => {:color => :red}, :select => 'shirts.*', :include => :washing_instructions</tt>.
+      # such as <tt>where(:color => :red).select('shirts.*').includes(:washing_instructions)</tt>.
       #
       #   class Shirt < ActiveRecord::Base
-      #     scope :red, :conditions => {:color => 'red'}
-      #     scope :dry_clean_only, :joins => :washing_instructions, :conditions => ['washing_instructions.dry_clean_only = ?', true]
+      #     scope :red, where(:color => 'red')
+      #     scope :dry_clean_only, joins(:washing_instructions).where('washing_instructions.dry_clean_only = ?', true)
       #   end
       #
       # The above calls to <tt>scope</tt> define class methods Shirt.red and Shirt.dry_clean_only. Shirt.red,
-      # in effect, represents the query <tt>Shirt.find(:all, :conditions => {:color => 'red'})</tt>.
+      # in effect, represents the query <tt>Shirt.where(:color => 'red')</tt>.
       #
       # Unlike <tt>Shirt.find(...)</tt>, however, the object returned by Shirt.red is not an Array; it resembles the association object
-      # constructed by a <tt>has_many</tt> declaration. For instance, you can invoke <tt>Shirt.red.find(:first)</tt>, <tt>Shirt.red.count</tt>,
-      # <tt>Shirt.red.find(:all, :conditions => {:size => 'small'})</tt>. Also, just
-      # as with the association objects, named \scopes act like an Array, implementing Enumerable; <tt>Shirt.red.each(&block)</tt>,
-      # <tt>Shirt.red.first</tt>, and <tt>Shirt.red.inject(memo, &block)</tt> all behave as if Shirt.red really was an Array.
+      # constructed by a <tt>has_many</tt> declaration. For instance, you can invoke <tt>Shirt.red.first</tt>, <tt>Shirt.red.count</tt>,
+      # <tt>Shirt.red.where(:size => 'small')</tt>. Also, just as with the association objects, named \scopes act like an Array,
+      # implementing Enumerable; <tt>Shirt.red.each(&block)</tt>, <tt>Shirt.red.first</tt>, and <tt>Shirt.red.inject(memo, &block)</tt>
+      # all behave as if Shirt.red really was an Array.
       #
       # These named \scopes are composable. For instance, <tt>Shirt.red.dry_clean_only</tt> will produce all shirts that are both red and dry clean only.
       # Nested finds and calculations also work with these compositions: <tt>Shirt.red.dry_clean_only.count</tt> returns the number of garments
@@ -69,9 +69,7 @@ module ActiveRecord
       # Named \scopes can also be procedural:
       #
       #   class Shirt < ActiveRecord::Base
-      #     scope :colored, lambda { |color|
-      #       { :conditions => { :color => color } }
-      #     }
+      #     scope :colored, lambda {|color| where(:color => color) }
       #   end
       #
       # In this example, <tt>Shirt.colored('puce')</tt> finds all puce shirts.
@@ -79,26 +77,13 @@ module ActiveRecord
       # Named \scopes can also have extensions, just as with <tt>has_many</tt> declarations:
       #
       #   class Shirt < ActiveRecord::Base
-      #     scope :red, :conditions => {:color => 'red'} do
+      #     scope :red, where(:color => 'red') do
       #       def dom_id
       #         'red_shirts'
       #       end
       #     end
       #   end
-      #
-      #
-      # For testing complex named \scopes, you can examine the scoping options using the
-      # <tt>proxy_options</tt> method on the proxy itself.
-      #
-      #   class Shirt < ActiveRecord::Base
-      #     scope :colored, lambda { |color|
-      #       { :conditions => { :color => color } }
-      #     }
-      #   end
-      #
-      #   expected_options = { :conditions => { :colored => 'red' } }
-      #   assert_equal expected_options, Shirt.colored('red').proxy_options
-      def scope(name, options = {}, &block)
+      def scope(name, scope_options = {}, &block)
         name = name.to_sym
 
         if !scopes[name] && respond_to?(name, true)
@@ -106,17 +91,17 @@ module ActiveRecord
                       "Overwriting existing method #{self.name}.#{name}."
         end
 
-        scopes[name] = lambda do |parent_scope, *args|
-          Scope.init(parent_scope, case options
-            when Hash, Relation
-              options
-            when Proc
-              options.call(*args)
-          end, &block)
+        scopes[name] = lambda do |*args|
+          options = scope_options.is_a?(Proc) ? scope_options.call(*args) : scope_options
+
+          relation = scoped
+          relation = options.is_a?(Hash) ? relation.apply_finder_options(options) : scoped.merge(options) if options
+          block_given? ? relation.extending(Module.new(&block)) : relation
         end
+
         singleton_class.instance_eval do
           define_method name do |*args|
-            scopes[name].call(self, *args)
+            scopes[name].call(*args)
           end
         end
       end
@@ -127,73 +112,5 @@ module ActiveRecord
       end
     end
 
-    class Scope < Relation
-      attr_accessor :current_scoped_methods_when_defined
-
-      delegate :scopes, :with_scope, :with_exclusive_scope, :scoped_methods, :scoped, :to => :klass
-
-      def self.init(klass, options, &block)
-        relation = new(klass, klass.arel_table)
-
-        scope = if options.is_a?(Hash)
-          klass.scoped.apply_finder_options(options.except(:extend))
-        else
-          options ? klass.scoped.merge(options) : klass.scoped
-        end
-
-        relation = relation.merge(scope)
-
-        Array.wrap(options[:extend]).each {|extension| relation.send(:extend, extension) } if options.is_a?(Hash)
-        relation.send(:extend, Module.new(&block)) if block_given?
-
-        relation.current_scoped_methods_when_defined = klass.send(:current_scoped_methods)
-        relation
-      end
-
-      def first(*args)
-        if args.first.kind_of?(Integer) || (loaded? && !args.first.kind_of?(Hash))
-          to_a.first(*args)
-        else
-          args.first.present? ? apply_finder_options(args.first).first : super
-        end
-      end
-
-      def last(*args)
-        if args.first.kind_of?(Integer) || (loaded? && !args.first.kind_of?(Hash))
-          to_a.last(*args)
-        else
-          args.first.present? ? apply_finder_options(args.first).last : super
-        end
-      end
-
-      def ==(other)
-        case other
-        when Scope
-          to_sql == other.to_sql
-        when Relation
-          other == self
-        when Array
-          to_a == other.to_a
-        end
-      end
-
-      private
-
-      def method_missing(method, *args, &block)
-        if klass.respond_to?(method)
-          with_scope(self) do
-            if current_scoped_methods_when_defined && !scoped_methods.include?(current_scoped_methods_when_defined) && !scopes.include?(method)
-              with_scope(current_scoped_methods_when_defined) { klass.send(method, *args, &block) }
-            else
-              klass.send(method, *args, &block)
-            end
-          end
-        else
-          super
-        end
-      end
-
-    end
-
   end
 end
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb
index 5e8fc104cb..0e48e229b3 100644
--- a/activerecord/lib/active_record/reflection.rb
+++ b/activerecord/lib/active_record/reflection.rb
@@ -277,6 +277,17 @@ module ActiveRecord
         !options[:validate].nil? ? options[:validate] : (options[:autosave] == true || macro == :has_many)
       end
 
+      def dependent_conditions(record, base_class, extra_conditions)
+        dependent_conditions = []
+        dependent_conditions << "#{primary_key_name} = #{record.send(name).send(:owner_quoted_id)}"
+        dependent_conditions << "#{options[:as]}_type = '#{base_class.name}'" if options[:as]
+        dependent_conditions << klass.send(:sanitize_sql, options[:conditions]) if options[:conditions]
+        dependent_conditions << extra_conditions if extra_conditions
+        dependent_conditions = dependent_conditions.collect {|where| "(#{where})" }.join(" AND ")
+        dependent_conditions = dependent_conditions.gsub('@', '\@')
+        dependent_conditions
+      end
+
       private
         def derive_class_name
           class_name = name.to_s.camelize
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb
index 8577ec58f7..4e62187449 100644
--- a/activerecord/lib/active_record/relation.rb
+++ b/activerecord/lib/active_record/relation.rb
@@ -13,8 +13,9 @@ module ActiveRecord
     delegate :insert, :to => :arel
 
     attr_reader :table, :klass
+    attr_accessor :extensions
 
-    def initialize(klass, table)
+    def initialize(klass, table, &block)
       @klass, @table = klass, table
 
       @implicit_readonly = nil
@@ -22,6 +23,9 @@ module ActiveRecord
 
       SINGLE_VALUE_METHODS.each {|v| instance_variable_set(:"@#{v}_value", nil)}
       (ASSOCIATION_METHODS + MULTI_VALUE_METHODS).each {|v| instance_variable_set(:"@#{v}_values", [])}
+      @extensions = []
+
+      apply_modules(Module.new(&block)) if block_given?
     end
 
     def new(*args, &block)
@@ -307,11 +311,26 @@ module ActiveRecord
       @should_eager_load ||= (@eager_load_values.any? || (@includes_values.any? && references_eager_loaded_tables?))
     end
 
+    def ==(other)
+      case other
+      when Relation
+        other.to_sql == to_sql
+      when Array
+        to_a == other.to_a
+      end
+    end
+
+    def inspect
+      to_a.inspect
+    end
+
     protected
 
     def method_missing(method, *args, &block)
       if Array.method_defined?(method)
         to_a.send(method, *args, &block)
+      elsif @klass.scopes[method]
+        merge(@klass.send(method, *args, &block))
       elsif @klass.respond_to?(method)
         @klass.send(:with_scope, self) { @klass.send(method, *args, &block) }
       elsif arel.respond_to?(method)
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb
index 37aaac0894..a26f1c0ac8 100644
--- a/activerecord/lib/active_record/relation/finder_methods.rb
+++ b/activerecord/lib/active_record/relation/finder_methods.rb
@@ -106,13 +106,29 @@ module ActiveRecord
     # A convenience wrapper for <tt>find(:first, *args)</tt>. You can pass in all the
     # same arguments to this method as you can to <tt>find(:first)</tt>.
     def first(*args)
-      args.any? ? apply_finder_options(args.first).first : find_first
+      if args.any?
+        if args.first.kind_of?(Integer) || (loaded? && !args.first.kind_of?(Hash))
+          to_a.first(*args)
+        else
+          apply_finder_options(args.first).first
+        end
+      else
+        find_first
+      end
     end
 
     # A convenience wrapper for <tt>find(:last, *args)</tt>. You can pass in all the
     # same arguments to this method as you can to <tt>find(:last)</tt>.
     def last(*args)
-      args.any? ? apply_finder_options(args.first).last : find_last
+      if args.any?
+        if args.first.kind_of?(Integer) || (loaded? && !args.first.kind_of?(Hash))
+          to_a.last(*args)
+        else
+          apply_finder_options(args.first).last
+        end
+      else
+        find_last
+      end
     end
 
     # A convenience wrapper for <tt>find(:all, *args)</tt>. You can pass in all the
diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb
index 711df16bf1..d0efa2189d 100644
--- a/activerecord/lib/active_record/relation/predicate_builder.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder.rb
@@ -20,10 +20,12 @@ module ActiveRecord
             table = Arel::Table.new(table_name, :engine => @engine)
           end
 
-          attribute = table[column]
+          unless attribute = table[column]
+            raise StatementInvalid, "No attribute named `#{column}` exists for table `#{table.name}`"
+          end
 
           case value
-          when Array, ActiveRecord::Associations::AssociationCollection, ActiveRecord::NamedScope::Scope
+          when Array, ActiveRecord::Associations::AssociationCollection, ActiveRecord::Relation
             values = value.to_a
             attribute.in(values)
           when Range
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb
index e224781016..b5e8b7570a 100644
--- a/activerecord/lib/active_record/relation/query_methods.rb
+++ b/activerecord/lib/active_record/relation/query_methods.rb
@@ -10,8 +10,9 @@ module ActiveRecord
 
         next if [:where, :having].include?(query_method)
         class_eval <<-CEVAL
-          def #{query_method}(*args)
+          def #{query_method}(*args, &block)
             new_relation = clone
+            new_relation.send(:apply_modules, Module.new(&block)) if block_given?
             value = Array.wrap(args.flatten).reject {|x| x.blank? }
             new_relation.#{query_method}_values += value if value.present?
             new_relation
@@ -21,8 +22,9 @@ module ActiveRecord
 
       [:where, :having].each do |query_method|
         class_eval <<-CEVAL
-          def #{query_method}(*args)
+          def #{query_method}(*args, &block)
             new_relation = clone
+            new_relation.send(:apply_modules, Module.new(&block)) if block_given?
             value = build_where(*args)
             new_relation.#{query_method}_values += [*value] if value.present?
             new_relation
@@ -34,8 +36,9 @@ module ActiveRecord
         attr_accessor :"#{query_method}_value"
 
         class_eval <<-CEVAL
-          def #{query_method}(value = true)
+          def #{query_method}(value = true, &block)
             new_relation = clone
+            new_relation.send(:apply_modules, Module.new(&block)) if block_given?
             new_relation.#{query_method}_value = value
             new_relation
           end
@@ -43,8 +46,16 @@ module ActiveRecord
       end
     end
 
-    def lock(locks = true)
+    def extending(*modules)
+      new_relation = clone
+      new_relation.send :apply_modules, *modules
+      new_relation
+    end
+
+    def lock(locks = true, &block)
       relation = clone
+      relation.send(:apply_modules, Module.new(&block)) if block_given?
+
       case locks
       when String, TrueClass, NilClass
         clone.tap {|new_relation| new_relation.lock_value = locks || true }
@@ -191,6 +202,12 @@ module ActiveRecord
 
     private
 
+    def apply_modules(modules)
+      values = Array.wrap(modules)
+      @extensions += values if values.present?
+      values.each {|extension| extend(extension) }
+    end
+
     def reverse_sql_order(order_query)
       order_query.to_s.split(/,/).each { |s|
         if s.match(/\s(asc|ASC)$/)
diff --git a/activerecord/lib/active_record/relation/spawn_methods.rb b/activerecord/lib/active_record/relation/spawn_methods.rb
index a17de1bdbb..8fdd64afcc 100644
--- a/activerecord/lib/active_record/relation/spawn_methods.rb
+++ b/activerecord/lib/active_record/relation/spawn_methods.rb
@@ -6,10 +6,9 @@ module ActiveRecord
       merged_relation = clone
       return merged_relation unless r
 
-      (ActiveRecord::Relation::ASSOCIATION_METHODS + ActiveRecord::Relation::MULTI_VALUE_METHODS).reject {|m| [:joins, :where].include?(m)}.each do |method|
-        unless (value = r.send(:"#{method}_values")).blank?
-          merged_relation.send(:"#{method}_values=", value)
-        end
+      (Relation::ASSOCIATION_METHODS + Relation::MULTI_VALUE_METHODS).reject {|m| [:joins, :where].include?(m)}.each do |method|
+        value = r.send(:"#{method}_values")
+        merged_relation.send(:"#{method}_values=", value) if value.present?
       end
 
       merged_relation = merged_relation.joins(r.joins_values)
@@ -26,7 +25,7 @@ module ActiveRecord
 
       merged_relation.where_values = merged_wheres
 
-      ActiveRecord::Relation::SINGLE_VALUE_METHODS.reject {|m| m == :lock}.each do |method|
+      Relation::SINGLE_VALUE_METHODS.reject {|m| m == :lock}.each do |method|
         unless (value = r.send(:"#{method}_value")).nil?
           merged_relation.send(:"#{method}_value=", value)
         end
@@ -34,6 +33,9 @@ module ActiveRecord
 
       merged_relation.lock_value = r.lock_value unless merged_relation.lock_value
 
+      # Apply scope extension modules
+      merged_relation.send :apply_modules, r.extensions
+
       merged_relation
     end
 
@@ -69,7 +71,7 @@ module ActiveRecord
       result
     end
 
-    VALID_FIND_OPTIONS = [ :conditions, :include, :joins, :limit, :offset,
+    VALID_FIND_OPTIONS = [ :conditions, :include, :joins, :limit, :offset, :extend,
                            :order, :select, :readonly, :group, :having, :from, :lock ]
 
     def apply_finder_options(options)
@@ -84,6 +86,7 @@ module ActiveRecord
 
       relation = relation.where(options[:conditions]) if options.has_key?(:conditions)
       relation = relation.includes(options[:include]) if options.has_key?(:include)
+      relation = relation.extending(options[:extend]) if options.has_key?(:extend)
 
       relation
     end
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index 1e345399f5..7b9e680c02 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -572,4 +572,20 @@ class RelationTest < ActiveRecord::TestCase
     assert_equal Post.all, all_posts.all
   end
 
+  def test_anonymous_extension
+    relation = Post.where(:author_id => 1).order('id ASC') do
+      def author
+        'lifo'
+      end
+    end
+
+    assert_equal "lifo", relation.author
+    assert_equal "lifo", relation.limit(1).author
+  end
+
+  def test_named_extension
+    relation = Post.where(:author_id => 1).order('id ASC').extending(Post::NamedExtension)
+    assert_equal "lifo", relation.author
+    assert_equal "lifo", relation.limit(1).author
+  end
 end
diff --git a/activerecord/test/models/post.rb b/activerecord/test/models/post.rb
index 704313649a..d092c4bf09 100644
--- a/activerecord/test/models/post.rb
+++ b/activerecord/test/models/post.rb
@@ -1,4 +1,10 @@
 class Post < ActiveRecord::Base
+  module NamedExtension
+    def author
+      'lifo'
+    end
+  end
+
   scope :containing_the_letter_a, where("body LIKE '%a%'")
   scope :ranked_by_comments, order("comments_count DESC")
   scope :limit_by, lambda {|l| limit(l) }
diff --git a/activesupport/lib/active_support/values/time_zone.rb b/activesupport/lib/active_support/values/time_zone.rb
index 945cdd5278..03b324764b 100644
--- a/activesupport/lib/active_support/values/time_zone.rb
+++ b/activesupport/lib/active_support/values/time_zone.rb
@@ -194,7 +194,7 @@ module ActiveSupport
     # offset is the number of seconds that this time zone is offset from UTC
     # (GMT). Seconds were chosen as the offset unit because that is the unit that
     # Ruby uses to represent time zone offsets (see Time#utc_offset).
-    def initialize(name, utc_offset, tzinfo = nil)
+    def initialize(name, utc_offset = nil, tzinfo = nil)
       @name = name
       @utc_offset = utc_offset
       @tzinfo = tzinfo
@@ -202,8 +202,12 @@ module ActiveSupport
     end
 
     def utc_offset
-      @current_period ||= tzinfo.current_period
-      @current_period.utc_offset
+      if @utc_offset
+        @utc_offset
+      else
+        @current_period ||= tzinfo.current_period
+        @current_period.utc_offset
+      end
     end
 
     # Returns the offset of this time zone as a formatted string, of the
@@ -305,75 +309,29 @@ module ActiveSupport
       tzinfo.period_for_local(time, dst)
     end
 
-    # TODO: Preload instead of lazy load for thread safety
     def tzinfo
+      @tzinfo ||= TimeZone.find_tzinfo(name)
+    end
+
+    # TODO: Preload instead of lazy load for thread safety
+    def self.find_tzinfo(name)
       require 'tzinfo' unless defined?(::TZInfo)
-      @tzinfo ||= ::TZInfo::Timezone.get(MAPPING[name])
+      ::TZInfo::Timezone.get(MAPPING[name] || name)
+    rescue TZInfo::InvalidTimezoneIdentifier
+      nil
     end
 
     unless const_defined?(:ZONES)
       ZONES = []
       ZONES_MAP = {}
-      [[-39_600, "International Date Line West", "Midway Island", "Samoa" ],
-       [-36_000, "Hawaii" ],
-       [-32_400, "Alaska" ],
-       [-28_800, "Pacific Time (US & Canada)", "Tijuana" ],
-       [-25_200, "Mountain Time (US & Canada)", "Chihuahua", "Mazatlan",
-                 "Arizona" ],
-       [-21_600, "Central Time (US & Canada)", "Saskatchewan", "Guadalajara",
-                 "Mexico City", "Monterrey", "Central America" ],
-       [-18_000, "Eastern Time (US & Canada)", "Indiana (East)", "Bogota",
-                 "Lima", "Quito" ],
-       [-16_200, "Caracas" ],
-       [-14_400, "Atlantic Time (Canada)", "Georgetown", "La Paz", "Santiago" ],
-       [-12_600, "Newfoundland" ],
-       [-10_800, "Brasilia", "Buenos Aires", "Greenland" ],
-       [ -7_200, "Mid-Atlantic" ],
-       [ -3_600, "Azores", "Cape Verde Is." ],
-       [      0, "Dublin", "Edinburgh", "Lisbon", "London", "Casablanca",
-                 "Monrovia", "UTC" ],
-       [  3_600, "Belgrade", "Bratislava", "Budapest", "Ljubljana", "Prague",
-                 "Sarajevo", "Skopje", "Warsaw", "Zagreb", "Brussels",
-                 "Copenhagen", "Madrid", "Paris", "Amsterdam", "Berlin",
-                 "Bern", "Rome", "Stockholm", "Vienna",
-                 "West Central Africa" ],
-       [  7_200, "Bucharest", "Cairo", "Helsinki", "Kyiv", "Riga", "Sofia",
-                 "Tallinn", "Vilnius", "Athens", "Istanbul", "Minsk",
-                 "Jerusalem", "Harare", "Pretoria" ],
-       [ 10_800, "Moscow", "St. Petersburg", "Volgograd", "Kuwait", "Riyadh",
-                 "Nairobi", "Baghdad" ],
-       [ 12_600, "Tehran" ],
-       [ 14_400, "Abu Dhabi", "Muscat", "Baku", "Tbilisi", "Yerevan" ],
-       [ 16_200, "Kabul" ],
-       [ 18_000, "Ekaterinburg", "Islamabad", "Karachi", "Tashkent" ],
-       [ 19_800, "Chennai", "Kolkata", "Mumbai", "New Delhi", "Sri Jayawardenepura" ],
-       [ 20_700, "Kathmandu" ],
-       [ 21_600, "Astana", "Dhaka", "Almaty",
-                 "Novosibirsk" ],
-       [ 23_400, "Rangoon" ],
-       [ 25_200, "Bangkok", "Hanoi", "Jakarta", "Krasnoyarsk" ],
-       [ 28_800, "Beijing", "Chongqing", "Hong Kong", "Urumqi",
-                 "Kuala Lumpur", "Singapore", "Taipei", "Perth", "Irkutsk",
-                 "Ulaan Bataar" ],
-       [ 32_400, "Seoul", "Osaka", "Sapporo", "Tokyo", "Yakutsk" ],
-       [ 34_200, "Darwin", "Adelaide" ],
-       [ 36_000, "Canberra", "Melbourne", "Sydney", "Brisbane", "Hobart",
-                 "Vladivostok", "Guam", "Port Moresby" ],
-       [ 39_600, "Magadan", "Solomon Is.", "New Caledonia" ],
-       [ 43_200, "Fiji", "Kamchatka", "Marshall Is.", "Auckland",
-                 "Wellington" ],
-       [ 46_800, "Nuku'alofa" ]].
-      each do |offset, *places|
-        places.each do |place|
-          place.freeze
-          zone = new(place, offset)
-          ZONES << zone
-          ZONES_MAP[place] = zone
-        end
+      MAPPING.each_key do |place|
+        place.freeze
+        zone = new(place)
+        ZONES << zone
+        ZONES_MAP[place] = zone
       end
       ZONES.sort!
       ZONES.freeze
-      ZONES_MAP.freeze
 
       US_ZONES = ZONES.find_all { |z| z.name =~ /US|Arizona|Indiana|Hawaii|Alaska/ }
       US_ZONES.freeze
@@ -404,7 +362,7 @@ module ActiveSupport
       def [](arg)
         case arg
           when String
-            ZONES_MAP[arg]
+            ZONES_MAP[arg] ||= lookup(arg)
           when Numeric, ActiveSupport::Duration
             arg *= 3600 if arg.abs <= 13
             all.find { |z| z.utc_offset == arg.to_i }
@@ -418,6 +376,12 @@ module ActiveSupport
       def us_zones
         US_ZONES
       end
+
+      private
+
+        def lookup(name)
+          (tzinfo = find_tzinfo(name)) && create(tzinfo.name.freeze)
+        end
     end
   end
 end
diff --git a/activesupport/test/time_zone_test.rb b/activesupport/test/time_zone_test.rb
index ce43c6507d..68027f7c94 100644
--- a/activesupport/test/time_zone_test.rb
+++ b/activesupport/test/time_zone_test.rb
@@ -75,6 +75,14 @@ class TimeZoneTest < Test::Unit::TestCase
     end
   end
 
+  def test_unknown_timezones_delegation_to_tzinfo
+    zone = ActiveSupport::TimeZone['America/Montevideo']
+    assert_equal ActiveSupport::TimeZone, zone.class
+    assert_equal zone.object_id, ActiveSupport::TimeZone['America/Montevideo'].object_id
+    assert_equal Time.utc(2010, 1, 31, 22), zone.utc_to_local(Time.utc(2010, 2)) # daylight saving offset -0200
+    assert_equal Time.utc(2010, 3, 31, 21), zone.utc_to_local(Time.utc(2010, 4)) # standard offset -0300
+  end
+
   def test_today
     Time.stubs(:now).returns(Time.utc(2000, 1, 1, 4, 59, 59)) # 1 sec before midnight Jan 1 EST
     assert_equal Date.new(1999, 12, 31), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].today
diff --git a/railties/lib/rails/application/configuration.rb b/railties/lib/rails/application/configuration.rb
index 44635ff4f6..5c7de616be 100644
--- a/railties/lib/rails/application/configuration.rb
+++ b/railties/lib/rails/application/configuration.rb
@@ -132,7 +132,7 @@ module Rails
           middleware.use('::Rack::Lock', :if => lambda { !allow_concurrency })
           middleware.use('::Rack::Runtime')
           middleware.use('::Rails::Rack::Logger')
-          middleware.use('::ActionDispatch::ShowExceptions', lambda { consider_all_requests_local })
+          middleware.use('::ActionDispatch::ShowExceptions', lambda { consider_all_requests_local }, :if => lambda { action_dispatch.show_exceptions })
           middleware.use("::ActionDispatch::RemoteIp", lambda { action_dispatch.ip_spoofing_check }, lambda { action_dispatch.trusted_proxies })
           middleware.use('::Rack::Sendfile', lambda { action_dispatch.x_sendfile_header })
           middleware.use('::ActionDispatch::Callbacks', lambda { !cache_classes })
diff --git a/railties/lib/rails/generators/rails/app/templates/config/environments/test.rb.tt b/railties/lib/rails/generators/rails/app/templates/config/environments/test.rb.tt
index 0b87b241ec..beb28e2229 100644
--- a/railties/lib/rails/generators/rails/app/templates/config/environments/test.rb.tt
+++ b/railties/lib/rails/generators/rails/app/templates/config/environments/test.rb.tt
@@ -14,6 +14,9 @@
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
 
+  # Raise exceptions instead of rendering exception templates
+  config.action_dispatch.show_exceptions = false
+
   # Disable request forgery protection in test environment
   config.action_controller.allow_forgery_protection    = false
 
diff --git a/railties/lib/rails/generators/rails/app/templates/public/index.html b/railties/lib/rails/generators/rails/app/templates/public/index.html
index 836da1b689..9fb304a66b 100644
--- a/railties/lib/rails/generators/rails/app/templates/public/index.html
+++ b/railties/lib/rails/generators/rails/app/templates/public/index.html
@@ -82,7 +82,8 @@
       #about-content {
         background-color: #ffd;
         border: 1px solid #fc0;
-        margin-left: -11px;
+        margin-left: -55px;
+        margin-right: -10px;
       }
       #about-content table {
         margin-top: 10px;
diff --git a/railties/test/application/middleware_test.rb b/railties/test/application/middleware_test.rb
index 9a359d20b1..7f72881d55 100644
--- a/railties/test/application/middleware_test.rb
+++ b/railties/test/application/middleware_test.rb
@@ -52,6 +52,12 @@ module ApplicationTests
       assert !middleware.include?("ActionDispatch::Static")
     end
 
+    test "removes show exceptions if action_dispatch.show_exceptions is disabled" do
+      add_to_config "config.action_dispatch.show_exceptions = false"
+      boot!
+      assert !middleware.include?("ActionDispatch::ShowExceptions")
+    end
+
     test "use middleware" do
       use_frameworks []
       add_to_config "config.middleware.use Rack::Config"