使用Rspec测试Devise时,"setup_controller_for_warden"错误中的"未定义方法`env'为nil:NilClass"

Question

我正在尝试通过使用factorygirl创建用户创建一个注销流程规范,然后使用Devise的sign_in方法对用户进行身份验证,然后使用capybara单击"注销"链接.

当我运行规范时,我得到(在我看来是什么)一个奇怪的错误:

Failures:

  1) Sign out flow successfully redirects to the welcome index (root)
     Failure/Error: Unable to find matching line from backtrace
     NoMethodError:
       undefined method `env' for nil:NilClass
     # /home/vagrant/.rvm/gems/ruby-2.0.0-p576/gems/devise-3.4.1/lib/devise/test_helpers.rb:24:in `setup_controller_for_warden'

Finished in 0.00226 seconds (files took 3.32 seconds to load)
1 example, 1 failure

这是规格:

require 'rails_helper'

describe "Sign out flow" do

  include Devise::TestHelpers

  describe "successfully" do
    it "redirects to the welcome index (root)" do
      user = create(:user)
      sign_in user


      within '.user-info' do
        click_link 'Sign Out'
      end

      expect(current_path).to eq root_path
    end
  end
end

而我的user.rb工厂:

FactoryGirl.define do
  factory :user do
    name "Fake User"
    sequence(:email, 100) { |n| "person#{n}@example.com" }
    password "helloworld"
    password_confirmation "helloworld"
    confirmed_at Time.now
  end
end

该错误似乎只是从该行触发include Devise::TestHelpers,因为我已经尝试评论规范的整个内容并仍然得到相同的错误.

我认为Devise测试助手可以开箱即用; 我错过了一些配置吗？谢谢.

Answer 1

在Rails 5,你必须包括Devise::Test::IntegrationHelpers代替Devise::Test::ControllerHelpers:

# rails_helper.rb
config.include Devise::Test::IntegrationHelpers, type: :feature

看更多:

• https://github.com/plataformatec/devise/issues/3913#issuecomment
• https://github.com/plataformatec/devise/pull/4071

Answer 2

显然存在问题Devise::TestHelpers和集成测试,所以也许这就是问题所在.

https://github.com/plataformatec/devise(在自述文件,问题等中提到;也参见相关的SO问题):

这些助手不适用于由Capybara或Webrat驱动的集成测试.它们仅用于功能测试.相反,填写表单或在会话中明确设置用户;

Answer 3

FWIW似乎已经修复了问题,但是在没有充分阅读文档之后我遇到了问题.

这是我们的代码:

RSpec.configure do |config|
  ...  
  config.include Devise::TestHelpers
  ...
end

这意味着每个测试都将包括测试助手,包括模型.这对我们来说是个问题.我们是否应该仔细阅读文档,我们会注意到Devise建议将其限制为只有控制器:

RSpec.configure do |config|
  ...  
  config.include Devise::TestHelpers, type: :controller
  ...
end

这解决了我们的问题.所有测试通过:)

Answer 4

这是我的解决方案:

class ActiveSupport::TestCase
  # all the normal stuff
end

class ActionController::TestCase
  include Devise::TestHelpers    
end

Answer 5

我在rails 5上遇到了同样的错误.这是我的解决方案

投机/ rails_helper.rb

RSpec.configure do |config|
  config.include Devise::TestHelpers, type: :controller
  config.include Devise::TestHelpers, type: :view
  config.include Warden::Test::Helpers
end

规格/控制器/ your_controller_spec.rb

RSpec.describe YourController, type: :controller do
  before(:all) do
  user = FactoryGirl.create(:user)
  login_as user, scope: :user
end

it "#index" do
  get "index"
  expect(response).to render_template(:index)
  expect(response).to have_http_status(200)
end

$ rspec --tag focus

Run options: include {:focus=>true}
DashboardController
#index
Finished in 3.9 seconds (files took 3.5 seconds to load)
1 example, 0 failures

Answer 6

像其他人已经说过的那样,你就包括了Devise::TestHelpers.那是测试控制器.如果您仍想在集成测试中自动登录测试用户,请查看与Capybara一起使用的官方设计说明.

与Capybara一起使用Devise

基本上,您需要做的是首先启用Warden的测试模式:

include Warden::Test::Helpers
Warden.test_mode!

然后,(创建并)登录您的用户:

user = FactoryGirl.create(:user)
login_as(user, scope: :user)

例:

# spec/features/survey_spec.rb
require 'rails_helper'

feature 'survey app' do
    include Warden::Test::Helpers

    let(:user)   { create(:user) }
    let(:survey) { create(:survey_with_questions) }

    before do
        # Sign the User in
        Warden.test_mode!
        login_as(user, scope: user)
    end

    it 'renders the survey' do
        visit survey_show_path(survey)
        expect(page).to have_content(survey.title)
    end
end