辅助测试中未定义的局部变量或方法“main_app”
我在Rails主应用程序上运行我的帮助程序测试时遇到错误（带有更多插件）
1) MenuHelper maintence menu Failure/Error: before { menu = build_menu_maintence() } NameError: undefined local variable or method `main_app' for # # ./app/helpers/menu_helper.rb:37:in `eval' # (eval):1:in `block in build_menu_items' # ./app/helpers/menu_helper.rb:37:in `eval' # ./app/helpers/menu_helper.rb:37:in `block in build_menu_items' # ./app/helpers/menu_helper.rb:23:in `each' # ./app/helpers/menu_helper.rb:23:in `build_menu_items' # ./app/helpers/menu_helper.rb:15:in `build_menu' # ./app/helpers/menu_helper.rb:48:in `build_menu_maintence' # ./spec/helpers/menu_helper_spec.rb:11:in `block (3 levels) in ' 谢谢你的进步，
我在可安装引擎中获得了以下成功：
def main_app Rails.application.class.routes.url_helpers end main_app.root_path