在测试spec/controller文件时，后台的private方法，我使用跟以action提交方式的方法去测试，我本机不报错，但是同事的报错，错误如下：
ActionController::UnknownAction in 'ConfigurationsController GET 'set_departments''
No action responded to set_departments. Actions: check_permission, check_special_permission, condition, img_size, index, local_request?, log_exception, m, must_login, params_condition, per_page, rescue_action_in_public, save_levels, save_main, search_condition, selected_district, selected_district_name, set_configuration_departments, set_menu, set_online_user, top, and workitem_attributes_from
/home/liweihui/.gem/ruby/1.8/gems/haml-2.0.10/lib/sass/plugin/rails.rb:19:in `process'
./spec/controllers/configurations_controller_spec.rb:30:
这是为什么？
