fix method redefined warnings in tests

actionpack/test/abstract_unit.rb

@@ -351,3 +351,8 @@ module ActionDispatch
   end
 end
 
+module RoutingTestHelpers
+  def url_for(set, options, recall = nil)
+    set.send(:url_for, options.merge(:only_path => true, :_path_segments => recall))
+  end
+end

actionpack/test/controller/routing_test.rb

@@ -11,12 +11,6 @@ end
 
 ROUTING = ActionDispatch::Routing
 
-module RoutingTestHelpers
-  def url_for(set, options, recall = nil)
-    set.send(:url_for, options.merge(:only_path => true, :_path_segments => recall))
-  end
-end
-
 # See RFC 3986, section 3.3 for allowed path characters.
 class UriReservedCharactersRoutingTest < Test::Unit::TestCase
   include RoutingTestHelpers

actionpack/test/controller/url_for_integration_test.rb

@@ -3,12 +3,6 @@ require 'abstract_unit'
 require 'controller/fake_controllers'
 require 'active_support/core_ext/object/with_options'
 
-module RoutingTestHelpers
-  def url_for(set, options, recall = nil)
-    set.send(:url_for, options.merge(:only_path => true, :_path_segments => recall))
-  end
-end
-
 module ActionPack
   class URLForIntegrationTest < ActiveSupport::TestCase
     include RoutingTestHelpers