Added configuration to allow for custom application engine.

lib/rspec/rails.rb

@@ -9,6 +9,7 @@
 require 'rspec/rails/view_rendering'
 require 'rspec/rails/adapters'
 require 'rspec/rails/matchers'
+require 'rspec/rails/engine_support'
 require 'rspec/rails/fixture_support'
 require 'rspec/rails/mocks'
 require 'rspec/rails/module_inclusion'

lib/rspec/rails/engine_support.rb

@@ -0,0 +1,9 @@
+module RSpec
+  module Rails
+    module EngineSupport
+      RSpec::configure do |config|
+        config.add_setting :application, :default => ::Rails.application
+      end
+    end
+  end
+end

lib/rspec/rails/example/controller_example_group.rb

@@ -120,7 +120,7 @@ def method_missing(method, *args, &block)
       metadata[:type] = :controller
 
       before do
-        @routes = ::Rails.application.routes
+        @routes = RSpec.configuration.application.routes
         ActionController::Base.allow_forgery_protection = false
       end
     end

lib/rspec/rails/example/mailer_example_group.rb

@@ -7,7 +7,7 @@ module MailerExampleGroup
 
       included do
         metadata[:type] = :mailer
-        include ::Rails.application.routes.url_helpers
+        include RSpec.configuration.application.routes.url_helpers
         options = ::Rails.configuration.action_mailer.default_url_options
         options.each { |key, value| default_url_options[key] = value } if options
       end

lib/rspec/rails/example/request_example_group.rb

@@ -9,14 +9,14 @@ module RequestExampleGroup
     include ActionController::TemplateAssertions
 
     def app
-      ::Rails.application
+      RSpec.configuration.application
     end
 
     included do
       metadata[:type] = :request
 
       before do
-        @routes = ::Rails.application.routes
+        @routes = RSpec.configuration.application.routes
       end
     end
   end

lib/rspec/rails/example/routing_example_group.rb

@@ -12,7 +12,7 @@ module RoutingExampleGroup
       metadata[:type] = :routing
 
       before do
-        @routes = ::Rails.application.routes
+        @routes = RSpec.configuration.application.routes
       end
     end
 

spec/rspec/rails/configuration_spec.rb

@@ -3,10 +3,12 @@
 describe "configuration" do
   before do
     @orig_render_views = RSpec.configuration.render_views?
+    @orig_application = RSpec.configuration.application
   end
 
   after do
     RSpec.configuration.render_views = @orig_render_views
+    RSpec.configuration.application = @orig_application
   end
 
   describe "#render_views?" do
@@ -23,4 +25,15 @@
       RSpec.configuration.render_views?.should be_true
     end
   end
+
+  describe "#application" do
+    it "is Rails.application by default" do
+      RSpec.configuration.application.should eq(::Rails.application)
+    end
+
+    it "allows for custom application" do
+      RSpec.configuration.application = RSpec::EngineExample
+      RSpec.configuration.application.should eq(RSpec::EngineExample)
+    end
+  end
 end

spec/rspec/rails/example/controller_example_group_spec.rb

@@ -96,5 +96,28 @@ module RSpec::Rails
         controller_class.superclass.should eq(ApplicationController)
       end
     end
+
+    describe "#application" do
+      before do
+        @orig_application = RSpec.configuration.application
+        RSpec.configuration.application = RSpec::EngineExample
+      end
+
+      after do
+        RSpec.configuration.application = @orig_application
+      end
+
+      it "still delegates name routes to underlying controller" do
+        controller = double('controller')
+        controller.stub(:bars_path).and_return('/foos')
+
+        example = group.new
+        example.stub(:controller => controller)
+
+        example.instance_variable_set(:@orig_routes, RSpec.configuration.application.routes)
+
+        example.bars_path.should eq('/foos')
+      end
+    end
   end
 end

spec/rspec/rails/example/mailer_example_group_spec.rb

@@ -17,5 +17,25 @@ module ::Rails; end
       end
       group.metadata[:type].should eq(:mailer)
     end
+
+    describe "custom application" do
+      before do
+        @orig_application = RSpec.configuration.application
+        RSpec.configuration.application = RSpec::EngineExample
+      end
+
+      after do
+        RSpec.configuration.application = @orig_application
+      end
+
+      it "should include custom application's url helpers" do
+        group = RSpec::Core::ExampleGroup.describe do
+          include MailerExampleGroup
+        end
+
+        example = group.new
+        example.bars_path.should == '/bars'
+      end
+    end
   end
 end

spec/rspec/rails/example/request_example_group_spec.rb

@@ -13,5 +13,26 @@ module RSpec::Rails
       end
       group.metadata[:type].should eq(:request)
     end
+
+    describe "#app" do
+      before do
+        @orig_application = RSpec.configuration.application
+        RSpec.configuration.application = RSpec::EngineExample
+      end
+
+      after do
+        RSpec.configuration.application = @orig_application
+      end
+
+      it "sets app as custom application" do
+        group = RSpec::Core::ExampleGroup.describe do
+          include RequestExampleGroup
+        end
+
+        example = group.new
+
+        example.app.should eq(RSpec::EngineExample)
+      end
+    end
   end
 end

spec/rspec/rails/example/routing_example_group_spec.rb

@@ -28,5 +28,30 @@ module RSpec::Rails
         example.foo_path.should == "foo"
       end
     end
+
+    describe "custom application routes" do
+      before do
+        @orig_application = RSpec.configuration.application
+        RSpec.configuration.application = RSpec::EngineExample
+      end
+
+      after do
+        RSpec.configuration.application = @orig_application
+      end
+
+      it "provides routes of custom application" do
+        group = RSpec::Core::ExampleGroup.describe do
+          include RoutingExampleGroup
+        end
+
+        example = group.new
+
+        # Because this relies on before hooks, I have to stub this in.
+        example.stub(:routes => RSpec.configuration.application.routes)
+
+        example.bars_path.should == "/bars"
+      end
+
+    end
   end
 end

spec/support/engine_example.rb

@@ -0,0 +1,12 @@
+module RSpec
+  class EngineExample < ::Rails::Engine
+    def self.activate
+    end
+  end
+end
+
+
+RSpec::EngineExample.routes.draw do
+  root :to => "foo#index"
+  resources :bars
+end