请求规范中的存根认证

Question

我在寻找到的方式做这个,但要求规格.我需要登录并注销一个double或者instance_double去设计而不是实际的ActiveModel/ActiveRecord.

通过使用Wiki页面中的代码:

module RequestSpecHelpers
    def sign_in(user = double('user'))
      if user.nil?
        allow(request.env['warden']).to receive(:authenticate!).and_throw(:warden, {:scope => :user})
        allow(controller).to receive(:current_user).and_return(nil)
      else
        allow(request.env['warden']).to receive(:authenticate!).and_return(user)
        allow(controller).to receive(:current_user).and_return(user)
      end
    end
  end

我收到此错误: undefined method 'env' for nil:NilClass

我看到了这个问题和这个维基,但如果我想使用用户的双打那两个不起作用.我正在使用最后一个,与真实用户一起使用但是使用双倍它不会记录它.

测试:

RSpec.describe 'new shipment', type: :request do
  describe 'authenticated as user' do
    before do
      @user = double(:user, id: 1, email: 'user@gmail.com', password: 'password',
                      id_card: '4163649-1', first_name: 'Jane', last_name: 'Doe')

      sign_in @user
    end
  end
end

如果我包括:

RSpec.configure do |config|
  config.include Devise::TestHelpers, :type => :requests
end

我收到此错误:

Failure/Error: @request.env['action_controller.instance'] = @controller

     NoMethodError:
       undefined method `env' for nil:NilClass
     # /root/.rbenv/versions/2.4.2/lib/ruby/gems/2.4.0/gems/devise-4.3.0/lib/devise/test/controller_helpers.rb:40:in `setup_controller_for_warden'

---

弗雷德里克·张的问题回答

如果我这样做,login_as方法不会失败,但它并没有真正记录用户.因此,当我尝试访问具有before_action :authenticate_user!回调的路径时,它会失败.

这是我的代码基于他的答案:

require 'rails_helper'

RSpec.describe 'new shipment', type: :request do
  describe 'authenticated as user' do
    include Warden::Test::Helpers

    before(:each) do
      Warden.test_mode!
      #stub more methods as needed by the pages you are testing
      user = instance_double(User, to_key: 1, authenticatable_salt: 'example')
      login_as(user, scope: 'user')
    end

    it 'returns 200 Ok' do
      get new_shipment_path
      expect(response).to have_http_status(:ok)
    end
  end
end

这是运行时的响应rspec:

 1) new shipment authenticated as user returns 200 Ok
     Failure/Error: expect(response).to have_http_status(:ok)
       expected the response to have status code :ok (200) but it was :found (302)
     # ./spec/requests/shipments_requests_spec.rb:41:in `block (3 levels) in <top (required)>'

正如您所看到的,不是允许我访问它重定向的路径,这是不允许用户访问路径时的常见行为.

我改变了数据库中保存instance_double的真实User方法这种方法正常工作:

# only changed this line in the before hook
user = User.create(email: 'user@gmail.com', password: 'password',id_card: '4163649-1', first_name: 'Jane', last_name: 'Doe')

结果:

Finished in 3.23 seconds (files took 33.47 seconds to load)
1 example, 0 failures

Answer 1

听起来您正在使用 Devise 3.x（因为Devise::TestHelpers在 devise 4 中重命名），Devise::TestHelpers仅设计用于控制器规格。

如果您可以升级到 devise 4，它具有用于请求规范和控制器测试的单独帮助程序。这只是 Warden提供的一个非常薄的包装，它隐藏了 env 的所有混乱。

使用 double 时会出现一些额外的复杂情况 - 您需要删除您可能没有意识到的各种方法设计调用。

以下内容对我有用

describe 'example' do
  include Warden::Test::Helpers

  before(:each) do
    Warden.test_mode!
    #stub more methods as needed by the pages you are testing
    user = instance_double(User, to_key: 1, authenticatable_salt: 'example')
    login_as(user, scope: 'user')
  end
end