Added Rspec and Webrat plugins and started porting Selenium on Rails tests to Rspec Plain Text Stories driving Webrat driving Selenium.

vendor/plugins/rspec-rails/lib/spec/rails/example/assigns_hash_proxy.rb

@@ -0,0 +1,43 @@
+module Spec
+  module Rails
+    module Example
+      class AssignsHashProxy #:nodoc:
+        def initialize(object)
+          @object = object
+        end
+
+        def [](ivar)
+          if assigns.include?(ivar.to_s)
+            assigns[ivar.to_s]
+          elsif assigns.include?(ivar)
+            assigns[ivar]
+          else
+            nil
+          end
+        end
+
+        def []=(ivar, val)
+          @object.instance_variable_set "@#{ivar}", val
+          assigns[ivar.to_s] = val
+        end
+
+        def delete(name)
+          assigns.delete(name.to_s)
+        end
+
+        def each(&block)
+          assigns.each &block
+        end
+
+        def has_key?(key)
+          assigns.key?(key.to_s)
+        end
+
+        protected
+        def assigns
+          @object.assigns
+        end
+      end
+    end
+  end
+end

vendor/plugins/rspec-rails/lib/spec/rails/example/controller_example_group.rb

@@ -0,0 +1,271 @@
+module Spec
+  module Rails
+    module Example
+      # Controller Examples live in $RAILS_ROOT/spec/controllers/.
+      #
+      # Controller Examples use Spec::Rails::Example::ControllerExampleGroup, which supports running specs for
+      # Controllers in two modes, which represent the tension between the more granular
+      # testing common in TDD and the more high level testing built into
+      # rails. BDD sits somewhere in between: we want to a balance between
+      # specs that are close enough to the code to enable quick fault
+      # isolation and far enough away from the code to enable refactoring
+      # with minimal changes to the existing specs.
+      #
+      # == Isolation mode (default)
+      #
+      # No dependencies on views because none are ever rendered. The
+      # benefit of this mode is that can spec the controller completely
+      # independent of the view, allowing that responsibility to be
+      # handled later, or by somebody else. Combined w/ separate view
+      # specs, this also provides better fault isolation.
+      #
+      # == Integration mode
+      #
+      # To run in this mode, include the +integrate_views+ declaration
+      # in your controller context:
+      #
+      #   describe ThingController do
+      #     integrate_views
+      #     ...
+      #
+      # In this mode, controller specs are run in the same way that
+      # rails functional tests run - one set of tests for both the
+      # controllers and the views. The benefit of this approach is that
+      # you get wider coverage from each spec. Experienced rails
+      # developers may find this an easier approach to begin with, however
+      # we encourage you to explore using the isolation mode and revel
+      # in its benefits.
+      #
+      # == Expecting Errors
+      #
+      # Rspec on Rails will raise errors that occur in controller actions.
+      # In contrast, Rails will swallow errors that are raised in controller
+      # actions and return an error code in the header. If you wish to override
+      # Rspec and have Rail's default behaviour,tell the controller to use
+      # rails error handling ...
+      #
+      #   before(:each) do
+      #     controller.use_rails_error_handling!
+      #   end
+      #
+      # When using Rail's error handling, you can expect error codes in headers ...
+      #
+      #   it "should return an error in the header" do
+      #     response.should be_error
+      #   end
+      #
+      #   it "should return a 501" do
+      #     response.response_code.should == 501
+      #   end
+      #
+      #   it "should return a 501" do
+      #     response.code.should == "501"
+      #   end
+      class ControllerExampleGroup < FunctionalExampleGroup
+        class << self
+                    
+          # Use this to instruct RSpec to render views in your controller examples (Integration Mode).
+          #
+          #   describe ThingController do
+          #     integrate_views
+          #     ...
+          #
+          # See Spec::Rails::Example::ControllerExampleGroup for more information about
+          # Integration and Isolation modes.
+          def integrate_views(integrate_views = true)
+            @integrate_views = integrate_views
+          end
+          
+          def integrate_views? # :nodoc:
+            @integrate_views
+          end
+          
+          def inherited(klass) # :nodoc:
+            klass.controller_class_name = controller_class_name
+            klass.integrate_views(integrate_views?)
+            super
+          end
+
+          # You MUST provide a controller_name within the context of
+          # your controller specs:
+          #
+          #   describe "ThingController" do
+          #     controller_name :thing
+          #     ...
+          def controller_name(name)
+            @controller_class_name = "#{name}_controller".camelize
+          end
+          attr_accessor :controller_class_name # :nodoc:
+        end
+
+        before(:each) do
+          # Some Rails apps explicitly disable ActionMailer in environment.rb
+          if defined?(ActionMailer)
+            @deliveries = []
+            ActionMailer::Base.deliveries = @deliveries
+          end
+
+          unless @controller.class.ancestors.include?(ActionController::Base)
+            Spec::Expectations.fail_with <<-EOE
+            You have to declare the controller name in controller specs. For example:
+            describe "The ExampleController" do
+            controller_name "example" #invokes the ExampleController
+            end
+            EOE
+          end
+          (class << @controller; self; end).class_eval do
+            def controller_path #:nodoc:
+              self.class.name.underscore.gsub('_controller', '')
+            end
+            include ControllerInstanceMethods
+          end
+          @controller.integrate_views! if @integrate_views
+          @controller.session = session
+        end
+
+        attr_reader :response, :request, :controller
+
+        def initialize(defined_description, &implementation) #:nodoc:
+          super
+          controller_class_name = self.class.controller_class_name
+          if controller_class_name
+            @controller_class_name = controller_class_name.to_s
+          else
+            @controller_class_name = self.class.described_type.to_s
+          end
+          @integrate_views = self.class.integrate_views?
+        end
+
+        # Uses ActionController::Routing::Routes to generate
+        # the correct route for a given set of options.
+        # == Example
+        #   route_for(:controller => 'registrations', :action => 'edit', :id => 1)
+        #     => '/registrations/1;edit'
+        def route_for(options)
+          ensure_that_routes_are_loaded
+          ActionController::Routing::Routes.generate(options)
+        end
+
+        # Uses ActionController::Routing::Routes to parse
+        # an incoming path so the parameters it generates can be checked
+        # == Example
+        #   params_from(:get, '/registrations/1;edit')
+        #     => :controller => 'registrations', :action => 'edit', :id => 1
+        def params_from(method, path)
+          ensure_that_routes_are_loaded
+          ActionController::Routing::Routes.recognize_path(path, :method => method)
+        end
+
+        protected
+        def _assigns_hash_proxy
+          @_assigns_hash_proxy ||= AssignsHashProxy.new @controller
+        end
+
+        private
+        def ensure_that_routes_are_loaded
+          ActionController::Routing::Routes.reload if ActionController::Routing::Routes.empty?
+        end
+
+        module ControllerInstanceMethods #:nodoc:
+          include Spec::Rails::Example::RenderObserver
+
+          # === render(options = nil, deprecated_status_or_extra_options = nil, &block)
+          #
+          # This gets added to the controller's singleton meta class,
+          # allowing Controller Examples to run in two modes, freely switching
+          # from context to context.
+          def render(options=nil, deprecated_status_or_extra_options=nil, &block)
+            if ::Rails::VERSION::STRING >= '2.0.0' && deprecated_status_or_extra_options.nil?
+              deprecated_status_or_extra_options = {}
+            end
+              
+            unless block_given?
+              unless integrate_views?
+                if @template.respond_to?(:finder)
+                  (class << @template.finder; self; end).class_eval do
+                    define_method :file_exists? do
+                      true
+                    end
+                  end
+                else
+                  (class << @template; self; end).class_eval do
+                    define_method :file_exists? do
+                      true
+                    end
+                  end
+                end
+                (class << @template; self; end).class_eval do
+                  define_method :render_file do |*args|
+                    @first_render ||= args[0]
+                  end
+                end
+              end
+            end
+
+            if matching_message_expectation_exists(options)
+              expect_render_mock_proxy.render(options, &block)
+              @performed_render = true
+            else
+              unless matching_stub_exists(options)
+                super(options, deprecated_status_or_extra_options, &block)
+              end
+            end
+          end
+          
+          def raise_with_disable_message(old_method, new_method)
+            raise %Q|
+      controller.#{old_method}(:render) has been disabled because it
+      can often produce unexpected results. Instead, you should
+      use the following (before the action):
+
+      controller.#{new_method}(*args)
+
+      See the rdoc for #{new_method} for more information.
+            |
+          end
+          def should_receive(*args)
+            if args[0] == :render
+              raise_with_disable_message("should_receive", "expect_render")
+            else
+              super
+            end
+          end
+          def stub!(*args)
+            if args[0] == :render
+              raise_with_disable_message("stub!", "stub_render")
+            else
+              super
+            end
+          end
+
+          def response(&block)
+            # NOTE - we're setting @update for the assert_select_spec - kinda weird, huh?
+            @update = block
+            @_response || @response
+          end
+
+          def integrate_views!
+            @integrate_views = true
+          end
+
+          private
+
+          def integrate_views?
+            @integrate_views
+          end
+
+          def matching_message_expectation_exists(options)
+            expect_render_mock_proxy.send(:__mock_proxy).send(:find_matching_expectation, :render, options)
+          end
+        
+          def matching_stub_exists(options)
+            expect_render_mock_proxy.send(:__mock_proxy).send(:find_matching_method_stub, :render, options)
+          end
+        
+        end
+
+        Spec::Example::ExampleGroupFactory.register(:controller, self)
+      end
+    end
+  end
+end

vendor/plugins/rspec-rails/lib/spec/rails/example/functional_example_group.rb

@@ -0,0 +1,59 @@
+module Spec
+  module Rails
+    module Example
+      class FunctionalExampleGroup < RailsExampleGroup
+        include ActionController::TestProcess
+        include ActionController::Assertions
+
+        attr_reader :request, :response
+        before(:each) do
+          @controller_class = Object.path2class @controller_class_name
+          raise "Can't determine controller class for #{@controller_class_name}" if @controller_class.nil?
+
+          @controller = @controller_class.new
+          @request = ActionController::TestRequest.new
+          @response = ActionController::TestResponse.new
+          @response.session = @request.session
+        end
+
+        def params
+          request.parameters
+        end
+
+        def flash
+          response.flash
+        end
+
+        def session
+          response.session
+        end
+
+        # :call-seq:
+        #   assigns()
+        #
+        # Hash of instance variables to values that are made available to
+        # views. == Examples
+        #
+        #   #in thing_controller.rb
+        #   def new
+        #     @thing = Thing.new
+        #   end
+        #
+        #   #in thing_controller_spec
+        #   get 'new'
+        #   assigns[:registration].should == Thing.new
+        #--
+        # NOTE - Even though docs only use assigns[:key] format, this supports
+        # assigns(:key) in order to avoid breaking old specs.
+        #++
+        def assigns(key = nil)
+          if key.nil?
+            _assigns_hash_proxy
+          else
+            _assigns_hash_proxy[key]
+          end
+        end
+      end
+    end
+  end
+end

vendor/plugins/rspec-rails/lib/spec/rails/example/helper_example_group.rb

@@ -0,0 +1,164 @@
+module Spec
+  module Rails
+    module Example
+      # Helper Specs live in $RAILS_ROOT/spec/helpers/.
+      #
+      # Helper Specs use Spec::Rails::Example::HelperExampleGroup, which allows you to
+      # include your Helper directly in the context and write specs directly
+      # against its methods.
+      #
+      # HelperExampleGroup also includes the standard lot of ActionView::Helpers in case your
+      # helpers rely on any of those.
+      #
+      # == Example
+      #
+      #   class ThingHelper
+      #     def number_of_things
+      #       Thing.count
+      #     end
+      #   end
+      #
+      #   describe "ThingHelper example_group" do
+      #     include ThingHelper
+      #     it "should tell you the number of things" do
+      #       Thing.should_receive(:count).and_return(37)
+      #       number_of_things.should == 37
+      #     end
+      #   end
+      class HelperExampleGroup < FunctionalExampleGroup
+        class HelperObject < ActionView::Base
+          def protect_against_forgery?
+            false
+          end
+          
+          def session=(session)
+            @session = session
+          end
+          
+          def request=(request)
+            @request = request
+          end
+          
+          def flash=(flash)
+            @flash = flash
+          end
+          
+          def params=(params)
+            @params = params
+          end
+          
+          def controller=(controller)
+            @controller = controller
+          end
+          
+          private
+            attr_reader :session, :request, :flash, :params, :controller
+        end
+        
+        class << self
+          # The helper name....
+          def helper_name(name=nil)
+            @helper_being_described = "#{name}_helper".camelize.constantize
+            send :include, @helper_being_described
+          end
+          
+          def helper
+            @helper_object ||= returning HelperObject.new do |helper_object|
+              if @helper_being_described.nil?
+                if described_type.class == Module
+                  helper_object.extend described_type
+                end
+              else
+                helper_object.extend @helper_being_described
+              end
+            end
+          end
+        end
+        
+        # Returns an instance of ActionView::Base with the helper being spec'd
+        # included.
+        #
+        # == Example
+        #
+        #   describe PersonHelper do
+        #     it "should write a link to person with the name" do
+        #       assigns[:person] = mock_model(Person, :full_name => "Full Name", :id => 37, :new_record? => false)
+        #       helper.link_to_person.should == %{<a href="/people/37">Full Name</a>}
+        #     end
+        #   end
+        #
+        #   module PersonHelper
+        #     def link_to_person
+        #       link_to person.full_name, url_for(person)
+        #     end
+        #   end
+        #
+        def helper
+          self.class.helper
+        end
+
+        # Reverse the load order so that custom helpers which are defined last
+        # are also loaded last.
+        ActionView::Base.included_modules.reverse.each do |mod|
+          include mod if mod.parents.include?(ActionView::Helpers)
+        end
+
+        before(:all) do
+          @controller_class_name = 'Spec::Rails::Example::HelperExampleGroupController'
+        end
+
+        before(:each) do
+          @controller.request = @request
+          @controller.url = ActionController::UrlRewriter.new @request, {} # url_for
+
+          @flash = ActionController::Flash::FlashHash.new
+          session['flash'] = @flash
+
+          ActionView::Helpers::AssetTagHelper::reset_javascript_include_default
+          
+          helper.session = session
+          helper.request = @request
+          helper.flash = flash
+          helper.params = params
+          helper.controller = @controller
+        end
+
+        def flash
+          @flash
+        end
+
+        def eval_erb(text)
+          erb_args = [text]
+          if helper.respond_to?(:output_buffer)
+            erb_args += [nil, nil, '@output_buffer']
+          end
+          
+          helper.instance_eval do
+            ERB.new(*erb_args).result(binding)
+          end
+        end
+
+        # TODO: BT - Helper Examples should proxy method_missing to a Rails View instance.
+        # When that is done, remove this method
+        def protect_against_forgery?
+          false
+        end
+
+        Spec::Example::ExampleGroupFactory.register(:helper, self)
+
+        protected
+        def _assigns_hash_proxy
+          @_assigns_hash_proxy ||= AssignsHashProxy.new helper
+        end
+
+      end
+
+      class HelperExampleGroupController < ApplicationController #:nodoc:
+        attr_accessor :request, :url
+
+        # Re-raise errors
+        def rescue_action(e); raise e; end
+      end
+    end
+  end
+end

vendor/plugins/rspec-rails/lib/spec/rails/example/model_example_group.rb

@@ -0,0 +1,14 @@
+module Spec
+  module Rails
+    module Example
+      # Model examples live in $RAILS_ROOT/spec/models/.
+      #
+      # Model examples use Spec::Rails::Example::ModelExampleGroup, which
+      # provides support for fixtures and some custom expectations via extensions
+      # to ActiveRecord::Base.
+      class ModelExampleGroup < RailsExampleGroup
+        Spec::Example::ExampleGroupFactory.register(:model, self)
+      end
+    end
+  end
+end

vendor/plugins/rspec-rails/lib/spec/rails/example/rails_example_group.rb

@@ -0,0 +1,29 @@
+require 'spec/interop/test'
+
+if ActionView::Base.respond_to?(:cache_template_extension)
+  ActionView::Base.cache_template_extensions = false
+end
+
+module Spec
+  module Rails
+
+    module Example
+      class RailsExampleGroup < Test::Unit::TestCase
+        
+        # Rails >= r8570 uses setup/teardown_fixtures explicitly
+        before(:each) do
+          setup_fixtures if self.respond_to?(:setup_fixtures)
+        end
+        after(:each) do
+          teardown_fixtures if self.respond_to?(:teardown_fixtures)
+        end
+        
+        include Spec::Rails::Matchers
+        include Spec::Rails::Mocks
+        
+        Spec::Example::ExampleGroupFactory.default(self)
+        
+      end
+    end
+  end
+end

vendor/plugins/rspec-rails/lib/spec/rails/example/render_observer.rb

@@ -0,0 +1,90 @@
+require 'spec/mocks/framework'
+
+module Spec
+  module Rails
+    module Example
+      # Provides specialized mock-like behaviour for controller and view examples,
+      # allowing you to mock or stub calls to render with specific arguments while
+      # ignoring all other calls.
+      module RenderObserver
+
+        # Similar to mocking +render+ with the exception that calls to +render+ with
+        # any other options are passed on to the receiver (i.e. controller in
+        # controller examples, template in view examples).
+        #
+        # This is necessary because Rails uses the +render+ method on both
+        # controllers and templates as a dispatcher to render different kinds of
+        # things, sometimes resulting in many calls to the render method within one
+        # request. This approach makes it impossible to use a normal mock object, which
+        # is designed to observe all incoming messages with a given name.
+        #
+        # +expect_render+ is auto-verifying, so failures will be reported without
+        # requiring you to explicitly request verification.
+        #
+        # Also, +expect_render+ uses parts of RSpec's mock expectation framework. Because
+        # it wraps only a subset of the framework, using this will create no conflict with
+        # other mock frameworks if you choose to use them. Additionally, the object returned
+        # by expect_render is an RSpec mock object, which means that you can call any of the
+        # chained methods available in RSpec's mocks.
+        #
+        # == Controller Examples
+        #
+        #   controller.expect_render(:partial => 'thing', :object => thing)
+        #   controller.expect_render(:partial => 'thing', :collection => things).once
+        #
+        #   controller.stub_render(:partial => 'thing', :object => thing)
+        #   controller.stub_render(:partial => 'thing', :collection => things).twice
+        #
+        # == View Examples
+        #
+        #   template.expect_render(:partial => 'thing', :object => thing)
+        #   template.expect_render(:partial => 'thing', :collection => things)
+        #
+        #   template.stub_render(:partial => 'thing', :object => thing)
+        #   template.stub_render(:partial => 'thing', :collection => things)
+        #
+        def expect_render(opts={})
+          register_verify_after_each
+          expect_render_mock_proxy.should_receive(:render, :expected_from => caller(1)[0]).with(opts)
+        end
+
+        # This is exactly like expect_render, with the exception that the call to render will not
+        # be verified. Use this if you are trying to isolate your example from a complicated render
+        # operation but don't care whether it is called or not.
+        def stub_render(opts={})
+          register_verify_after_each
+          expect_render_mock_proxy.stub!(:render, :expected_from => caller(1)[0]).with(opts)
+        end
+  
+        def verify_rendered # :nodoc:
+          expect_render_mock_proxy.rspec_verify
+        end
+  
+        def unregister_verify_after_each #:nodoc:
+          proc = verify_rendered_proc
+          Spec::Example::ExampleGroup.remove_after(:each, &proc)
+        end
+
+        protected
+
+        def verify_rendered_proc #:nodoc:
+          template = self
+          @verify_rendered_proc ||= Proc.new do
+            template.verify_rendered
+            template.unregister_verify_after_each
+          end
+        end
+
+        def register_verify_after_each #:nodoc:
+          proc = verify_rendered_proc
+          Spec::Example::ExampleGroup.after(:each, &proc)
+        end
+  
+        def expect_render_mock_proxy #:nodoc:
+          @expect_render_mock_proxy ||= Spec::Mocks::Mock.new("expect_render_mock_proxy")
+        end
+  
+      end
+    end
+  end
+end

vendor/plugins/rspec-rails/lib/spec/rails/example/view_example_group.rb

@@ -0,0 +1,178 @@
+module Spec
+  module Rails
+    module Example
+      # View Examples live in $RAILS_ROOT/spec/views/.
+      #
+      # View Specs use Spec::Rails::Example::ViewExampleGroup,
+      # which provides access to views without invoking any of your controllers.
+      # See Spec::Rails::Expectations::Matchers for information about specific
+      # expectations that you can set on views.
+      #
+      # == Example
+      #
+      #   describe "login/login" do
+      #     before do
+      #       render 'login/login'
+      #     end
+      # 
+      #     it "should display login form" do
+      #       response.should have_tag("form[action=/login]") do
+      #         with_tag("input[type=text][name=email]")
+      #         with_tag("input[type=password][name=password]")
+      #         with_tag("input[type=submit][value=Login]")
+      #       end
+      #     end
+      #   end
+      class ViewExampleGroup < FunctionalExampleGroup
+        before(:each) do
+          ensure_that_flash_and_session_work_properly
+        end
+
+        after(:each) do
+          ensure_that_base_view_path_is_not_set_across_example_groups
+        end
+
+        def initialize(defined_description, &implementation) #:nodoc:
+          super
+          @controller_class_name = "Spec::Rails::Example::ViewExampleGroupController"
+        end
+
+        def ensure_that_flash_and_session_work_properly #:nodoc:
+          @controller.send :initialize_template_class, @response
+          @controller.send :assign_shortcuts, @request, @response
+          @session = @controller.session
+          @controller.class.send :public, :flash
+        end
+
+        def ensure_that_base_view_path_is_not_set_across_example_groups #:nodoc:
+          ActionView::Base.base_view_path = nil
+        end
+
+        def set_base_view_path(options) #:nodoc:
+          ActionView::Base.base_view_path = base_view_path(options)
+        end
+
+        def base_view_path(options) #:nodoc:
+          "/#{derived_controller_name(options)}/"
+        end
+
+        def derived_controller_name(options) #:nodoc:
+          parts = subject_of_render(options).split('/').reject { |part| part.empty? }
+          "#{parts[0..-2].join('/')}"
+        end
+
+        def derived_action_name(options) #:nodoc:
+          parts = subject_of_render(options).split('/').reject { |part| part.empty? }
+          "#{parts.last}"
+        end
+
+        def subject_of_render(options) #:nodoc:
+          [:template, :partial, :file].each do |render_type|
+            if options.has_key?(render_type)
+              return options[render_type]
+            end
+          end
+          return ""
+        end
+
+        def add_helpers(options) #:nodoc:
+          @controller.add_helper("application")
+          @controller.add_helper(derived_controller_name(options))
+          @controller.add_helper(options[:helper]) if options[:helper]
+          options[:helpers].each { |helper| @controller.add_helper(helper) } if options[:helpers]
+        end
+
+        # Renders a template for a View Spec, which then provides access to the result
+        # through the +response+. Also supports render with :inline, which you can
+        # use to spec custom form builders, helpers, etc, in the context of a view.
+        #
+        # == Examples
+        #
+        #   render('/people/list')
+        #   render('/people/list', :helper => MyHelper)
+        #   render('/people/list', :helpers => [MyHelper, MyOtherHelper])
+        #   render(:partial => '/people/_address')
+        #   render(:inline => "<% custom_helper 'argument', 'another argument' %>")
+        #
+        # See Spec::Rails::Example::ViewExampleGroup for more information.
+        def render(*args)
+          options = Hash === args.last ? args.pop : {}
+          options[:template] = args.first.to_s unless args.empty?
+
+          set_base_view_path(options)
+          add_helpers(options)
+
+          assigns[:action_name] = @action_name
+
+          @request.path_parameters = {
+          :controller => derived_controller_name(options),
+          :action => derived_action_name(options)
+          }
+
+          defaults = { :layout => false }
+          options = defaults.merge options
+
+          @controller.send(:params).reverse_merge! @request.parameters
+
+          @controller.send :initialize_current_url
+
+          @controller.class.instance_eval %{
+            def controller_path
+              "#{derived_controller_name(options)}"
+            end
+
+            def controller_name
+              "#{derived_controller_name(options).split('/').last}"
+            end
+          }
+
+          @controller.send :forget_variables_added_to_assigns
+          @controller.send :render, options
+          @controller.send :process_cleanup
+        end
+
+        # This provides the template. Use this to set mock
+        # expectations for dealing with partials
+        #
+        # == Example
+        #
+        #   describe "/person/new" do
+        #     it "should use the form partial" do
+        #       template.should_receive(:render).with(:partial => 'form')
+        #       render "/person/new"
+        #     end
+        #   end
+        def template
+          @controller.template
+        end
+
+        Spec::Example::ExampleGroupFactory.register(:view, self)
+
+        protected
+        def _assigns_hash_proxy
+          @_assigns_hash_proxy ||= AssignsHashProxy.new @controller
+        end
+      end
+
+      class ViewExampleGroupController < ApplicationController #:nodoc:
+        include Spec::Rails::Example::RenderObserver
+        attr_reader :template
+
+        def add_helper_for(template_path)
+          add_helper(template_path.split('/')[0])
+        end
+
+        def add_helper(name)
+          begin
+            helper_module = "#{name}_helper".camelize.constantize
+          rescue
+            return
+          end
+          (class << template; self; end).class_eval do
+            include helper_module
+          end
+        end
+      end
+    end
+  end
+end