diff --git a/actionpack/test/controller/routing_test.rb b/actionpack/test/controller/routing_test.rb
index 4eaf309c4194a4cf9d762ef6ac731a30b348adcb..a2fdbfbbbe4f326aa74918f029741cfa8fb17345 100644
--- a/actionpack/test/controller/routing_test.rb
+++ b/actionpack/test/controller/routing_test.rb
@@ -1762,13 +1762,6 @@ def test_bang_forces_reload
     2.times { routes.reload! }
   end
 
-  def test_adding_inflections_forces_reload
-    ActiveSupport::Inflector::Inflections.instance.expects(:uncountable).with('equipment')
-    routes.expects(:reload!)
-
-    ActiveSupport::Inflector.inflections { |inflect| inflect.uncountable('equipment') }
-  end
-
   def test_load_with_configuration
     routes.configuration_files.clear
     routes.add_configuration_file("foobarbaz")