1 files changed, 19 insertions, 1 deletions
diff --git a/railties/test/application/rake_test.rb b/railties/test/application/rake_test.rb
index a8275a2e76..09f2ad1209 100644
--- a/railties/test/application/rake_test.rb
+++ b/railties/test/application/rake_test.rb
@@ -1,5 +1,6 @@
 # coding:utf-8
 require "isolation/abstract_unit"
+require "active_support/core_ext/string/strip"
 
 module ApplicationTests
   class RakeTest < ActiveSupport::TestCase
@@ -140,7 +141,24 @@ module ApplicationTests
           get '/cart', to: 'cart#show'
         end
       RUBY
-      assert_equal "cart GET /cart(.:format) cart#show\n", Dir.chdir(app_path){ `rake routes` }
+
+      output = Dir.chdir(app_path){ `rake routes` }
+      assert_equal "Prefix Verb URI Pattern     Controller#Action\ncart GET /cart(.:format) cart#show\n", output
+    end
+
+    def test_rake_routes_displays_message_when_no_routes_are_defined
+      app_file "config/routes.rb", <<-RUBY
+        AppTemplate::Application.routes.draw do
+        end
+      RUBY
+
+      assert_equal <<-MESSAGE.strip_heredoc, Dir.chdir(app_path){ `rake routes` }
+        You don't have any routes defined!
+
+        Please add some routes in config/routes.rb.
+
+        For more information about routes, see the Rails guide: http://guides.rubyonrails.org/routing.html.
+      MESSAGE
     end
 
     def test_logger_is_flushed_when_exiting_production_rake_tasks