Ensure Set-Cookie is not set on assets.

Gemfile

@@ -10,7 +10,8 @@ end
 
 gem "coffee-script"
 gem "sass"
-gem "uglifier", :git => 'git://github.com/lautis/uglifier.git'
+gem "uglifier", :git => "git://github.com/lautis/uglifier.git"
+gem "rack", :git => "git://github.com/rack/rack.git"
 
 gem "rake",  ">= 0.8.7"
 gem "mocha", ">= 0.9.8"

railties/test/application/assets_test.rb

@@ -24,35 +24,36 @@ module ApplicationTests
         end
       RUBY
 
+      require "#{app_path}/config/environment"
+
       get "/assets/demo.js"
       assert_match "alert()", last_response.body
     end
 
     test "does not stream session cookies back" do
-      puts "PENDING SPROCKETS AND RACK RELEASE"
-      # app_file "app/assets/javascripts/demo.js.erb", "<%= :alert %>();"
-      #
-      # app_file "config/routes.rb", <<-RUBY
-      #   AppTemplate::Application.routes.draw do
-      #     match '/omg', :to => "omg#index"
-      #   end
-      # RUBY
-      #
-      # require "#{app_path}/config/environment"
-      #
-      # class ::OmgController < ActionController::Base
-      #   def index
-      #     flash[:cool_story] = true
-      #     render :text => "ok"
-      #   end
-      # end
-      #
-      # get "/omg"
-      # assert_equal 'ok', last_response.body
-      #
-      # get "/assets/demo.js"
-      # assert_match "alert()", last_response.body
-      # assert_equal nil, last_response.headers["Set-Cookie"]
+      app_file "app/assets/javascripts/demo.js.erb", "<%= :alert %>();"
+
+      app_file "config/routes.rb", <<-RUBY
+        AppTemplate::Application.routes.draw do
+          match '/omg', :to => "omg#index"
+        end
+      RUBY
+
+      require "#{app_path}/config/environment"
+
+      class ::OmgController < ActionController::Base
+        def index
+          flash[:cool_story] = true
+          render :text => "ok"
+        end
+      end
+
+      get "/omg"
+      assert_equal 'ok', last_response.body
+
+      get "/assets/demo.js"
+      assert_match "alert()", last_response.body
+      assert_equal nil, last_response.headers["Set-Cookie"]
     end
   end
 end