diff --git a/actionpack/test/abstract_unit.rb b/actionpack/test/abstract_unit.rb
index b914bbce4d..e5054a9eb8 100644
--- a/actionpack/test/abstract_unit.rb
+++ b/actionpack/test/abstract_unit.rb
@@ -349,3 +349,32 @@ def url_for(set, options, recall = nil)
     set.send(:url_for, options.merge(:only_path => true, :_recall => recall))
   end
 end
+
+class ResourcesController < ActionController::Base
+  def index() render :nothing => true end
+  alias_method :show, :index
+end
+
+class ThreadsController  < ResourcesController; end
+class MessagesController < ResourcesController; end
+class CommentsController < ResourcesController; end
+class AuthorsController < ResourcesController; end
+class LogosController < ResourcesController; end
+
+class AccountsController <  ResourcesController; end
+class AdminController   <  ResourcesController; end
+class ProductsController < ResourcesController; end
+class ImagesController < ResourcesController; end
+class PreferencesController < ResourcesController; end
+
+module Backoffice
+  class ProductsController < ResourcesController; end
+  class TagsController < ResourcesController; end
+  class ManufacturersController < ResourcesController; end
+  class ImagesController < ResourcesController; end
+
+  module Admin
+    class ProductsController < ResourcesController; end
+    class ImagesController < ResourcesController; end
+  end
+end
diff --git a/actionpack/test/controller/resources_test.rb b/actionpack/test/controller/resources_test.rb
index 236e16c68e..305659b219 100644
--- a/actionpack/test/controller/resources_test.rb
+++ b/actionpack/test/controller/resources_test.rb
@@ -2,35 +2,6 @@
 require 'active_support/core_ext/object/try'
 require 'active_support/core_ext/object/with_options'
 
-class ResourcesController < ActionController::Base
-  def index() render :nothing => true end
-  alias_method :show, :index
-end
-
-class ThreadsController  < ResourcesController; end
-class MessagesController < ResourcesController; end
-class CommentsController < ResourcesController; end
-class AuthorsController < ResourcesController; end
-class LogosController < ResourcesController; end
-
-class AccountsController <  ResourcesController; end
-class AdminController   <  ResourcesController; end
-class ProductsController < ResourcesController; end
-class ImagesController < ResourcesController; end
-class PreferencesController < ResourcesController; end
-
-module Backoffice
-  class ProductsController < ResourcesController; end
-  class TagsController < ResourcesController; end
-  class ManufacturersController < ResourcesController; end
-  class ImagesController < ResourcesController; end
-
-  module Admin
-    class ProductsController < ResourcesController; end
-    class ImagesController < ResourcesController; end
-  end
-end
-
 class ResourcesTest < ActionController::TestCase
   def test_default_restful_routes
     with_restful_routing :messages do
diff --git a/actionpack/test/dispatch/routing/concerns_test.rb b/actionpack/test/dispatch/routing/concerns_test.rb
index ab4ad6b72e..21da3bd77a 100644
--- a/actionpack/test/dispatch/routing/concerns_test.rb
+++ b/actionpack/test/dispatch/routing/concerns_test.rb
@@ -1,17 +1,5 @@
 require 'abstract_unit'
 
-class CommentsController < ActionController::Base
-  def index
-    head :ok
-  end
-end
-
-class ImageAttachmentsController < ActionController::Base
-  def index
-    head :ok
-  end
-end
-
 class RoutingConcernsTest < ActionDispatch::IntegrationTest
   Routes = ActionDispatch::Routing::RouteSet.new.tap do |app|
     app.draw do
@@ -20,7 +8,7 @@ class RoutingConcernsTest < ActionDispatch::IntegrationTest
       end
 
       concern :image_attachable do
-        resources :image_attachments, only: :index
+        resources :images, only: :index
       end
 
       resources :posts, concerns: [:commentable, :image_attachable] do
@@ -65,13 +53,13 @@ def test_accessing_concern_from_nested_resources
   end
 
   def test_accessing_concern_from_resources_with_more_than_one_concern
-    get "/posts/1/image_attachments"
+    get "/posts/1/images"
     assert_equal "200", @response.code
-    assert_equal "/posts/1/image_attachments", post_image_attachments_path(post_id: 1)
+    assert_equal "/posts/1/images", post_images_path(post_id: 1)
   end
 
   def test_accessing_concern_from_resources_using_only_option
-    get "/posts/1/image_attachment/1"
+    get "/posts/1/image/1"
     assert_equal "404", @response.code
   end