2 files changed, 14 insertions, 3 deletions
diff --git a/railties/test/railties/engine_test.rb b/railties/test/railties/engine_test.rb
index 20797a2b0c..f7423cd566 100644
--- a/railties/test/railties/engine_test.rb
+++ b/railties/test/railties/engine_test.rb
@@ -1,8 +1,7 @@
 require "isolation/abstract_unit"
 require "railties/shared_tests"
-require 'stringio'
-require 'rack/test'
-require 'rack/file'
+require "stringio"
+require "rack/test"
 
 module RailtiesTest
   class EngineTest < Test::Unit::TestCase
diff --git a/railties/test/railties/shared_tests.rb b/railties/test/railties/shared_tests.rb
index 3eb79d57c8..5cd1818f4b 100644
--- a/railties/test/railties/shared_tests.rb
+++ b/railties/test/railties/shared_tests.rb
@@ -48,6 +48,18 @@ module RailtiesTest
       end
     end
 
+    def test_serving_sprockets_assets
+      @plugin.write "app/assets/javascripts/engine.js.coffee", "square = (x) -> x * x"
+
+      boot_rails
+      require 'rack/test'
+      require 'coffee_script'
+      extend Rack::Test::Methods
+
+      get "/assets/engine.js"
+      assert_match "square = function(x) {", last_response.body
+    end
+
     def test_copying_migrations
       @plugin.write "db/migrate/1_create_users.rb", <<-RUBY
         class CreateUsers < ActiveRecord::Migration