Routing specs can access named routes

- Closes #147.

Author: dchelimsky

features/routing_specs/access_to_named_routes.feature

@@ -0,0 +1,15 @@
+Feature: access to named routes in routing specs
+
+  Scenario: access existing named route
+    Given a file named "spec/routing/widget_routes_spec.rb" with:
+      """
+      require "spec_helper"
+
+      describe "routes to the widgets controller" do
+        it "routes a named route" do
+          {:get => new_widget_path}.should route_to(:controller => "widgets", :action => "new")
+        end
+      end
+      """
+    When I run "rspec spec"
+    Then the output should contain "1 example, 0 failures"

lib/rspec/rails/example/routing_example_group.rb

@@ -12,6 +12,10 @@ module RoutingExampleGroup
 
     module InstanceMethods
       attr_reader :routes
+
+      def method_missing(m, *args, &block)
+        routes.url_helpers.respond_to?(m) ? routes.url_helpers.send(m, *args) : super
+      end
     end
 
     included do

spec/rspec/rails/example/routing_example_group_spec.rb

@@ -11,5 +11,22 @@ module RSpec::Rails
       end
       group.metadata[:type].should eq(:routing)
     end
+
+    describe "named routes" do
+      it "delegates them to the route_set" do
+        group = RSpec::Core::ExampleGroup.describe do
+          include RoutingExampleGroup
+        end
+
+        example = group.new
+
+        # Yes, this is quite invasive
+        url_helpers = double('url_helpers', :foo_path => "foo")
+        routes = double('routes', :url_helpers => url_helpers)
+        example.stub(:routes => routes)
+
+        example.foo_path.should == "foo"
+      end
+    end
   end
 end