module ThoughtBot::Shoulda::Controller::XML::ClassMethods

def make_update_xml_tests(res) # :nodoc:
  context "on PUT to #{controller_name_from_class}#update as xml" do
    setup do
      request_xml
      @record = get_existing_record(res)
      parent_params = make_parent_params(res, @record)
      put :update, parent_params.merge(res.identifier => @record.to_param, res.object => res.update.params)
    end
    if res.denied.actions.include?(:update)
      should_not_assign_to res.object
      should_respond_with 401
    else
      should_assign_to res.object
      should "not have errors on @#{res.object}" do
        assert_equal [], assigns(res.object).errors.full_messages, "@#{res.object} has errors:"
      end
    end
  end
end