Stub out Dispatcher#log_failsafe_exception method to please the test gods.

actionpack/test/controller/dispatcher_test.rb

@@ -37,11 +37,14 @@ def test_leaves_dependencies_after_dispatch_if_not_in_loading_mode
     dispatch
   end
 
+  # Stub out dispatch error logger
+  class << Dispatcher
+    def log_failsafe_exception(status, exception); end
+  end
+
   def test_failsafe_response
     CGI.expects(:new).raises('some multipart parsing failure')
-
-    ActionController::Routing::Routes.stubs(:reload)
-    Dispatcher.any_instance.stubs(:log_failsafe_exception)
+    Dispatcher.expects(:log_failsafe_exception)
 
     assert_nothing_raised { dispatch }