ruby-on-rails - 当测试自定义设计 Controller 时，得到一个@controller is nil Runtime :Error

Question

我已经使用控制台命令 rails generate devise:controllers users 为用户设计生成 Controller ，当我尝试为 registrations_controller.rb 运行一个简单测试时，我的控制台输出错误:

RuntimeError: @controller is nil: make sure you set it in your test's setup method.

我是设计新手，但一切似乎都非常简单，所以我真的不明白为什么这不起作用。

这是 app/controllers/users/registrations_controller.rb :

class RegistrationsController < Devise::RegistrationsController

  # GET /resource/sign_up
  def new
    super
    @user = User.new
  end
end

这是 config/routes.rb :

Rails.application.routes.draw do
  devise_for :users, controllers: { registrations: 'users/registrations'}
  devise_scope :users do
    root                'users/registrations#new'
    get "sign_up", to: "users/registrations#new"
  end
end

这是测试/ Controller /registrations_controller_test.rb

require 'test_helper'


class RegistrationsControllerTest < ActionController::TestCase
include Devise::TestHelpers


    def setup 
            @user = users(:user1)
    end

    test "should get new" do
        get :new
        assert_response :success
    end
end

非常感谢您提供的任何帮助!

Answer 1

根据 Devise 文档:“如果您正在测试 Devise 内部 Controller 或从 Devise 继承的 Controller ，您需要在请求之前告诉 Devise 应该使用哪个映射。” https://github.com/plataformatec/devise#test-helpers

class RegistrationsControllerTest < ActionController::TestCase
  include Devise::TestHelpers

  def setup
    request.env['devise.mapping'] = Devise.mappings[:user]

    @user = users(:user1)
  end

  test "should get new" do
    get :new
    assert_response :success
  end
end

您可能还需要像这样为您的测试类添加前缀:

class Users::RegistrationsControllerTest < ActionController::TestCase
    ...
end