ruby-on-rails - 覆盖设备注册 Controller 时如何编写 Controller 测试？

Question

我希望重写Devise::RegistrationsController来实现一些自定义功能。为此，我创建了一个新的RegistrationsController，如下所示:

# /app/controllers/registrations_controller.rb
class RegistrationsController < Devise::RegistrationsController
  def new
    super
  end
end

并像这样设置我的路线:

devise_for :users, :controllers => { :registrations => "registrations" }

并尝试像这样测试它:

describe RegistrationsController do
  describe "GET 'new'" do
    it "should be successful" do
      get :new
      response.should be_success
    end
  end
end

但这给了我一个错误:

 1) RegistrationsController GET 'new' should be successful
 Failure/Error: get :new
 AbstractController::ActionNotFound:
   Could not find devise mapping for path "/users/sign_up".
   Maybe you forgot to wrap your route inside the scope block? For example:

       devise_scope :user do
         match "/some/route" => "some_devise_controller"
       end
 # ./spec/controllers/registrations_controller_spec.rb:13:in `block (3 levels) in <top (required)>'

那我在做什么错？

Answer 1

问题在于Devise无法将路由从测试映射回原始 Controller 。这意味着，如果您在浏览器中打开应用程序实际上可以正常运行，则 Controller 测试仍将失败。

解决方案是在每次测试之前将devise映射添加到请求，如下所示:

before :each do
  request.env['devise.mapping'] = Devise.mappings[:user]
end