尝试使用Devise设置RSpec时出现#RSpec :: Core :: ExampleGroup :: Nested_1 :: Nested_1:0x1057fd428>的未定义方法`sign_in'错误

Question

我有一个spec/controllers/add_to_carts_spec.rb:

require 'spec_helper'

describe CartItemsController do

  before (:each) do
    @user = Factory(:user)
    sign_in @user
  end

  describe "add stuff to the cart" do
    it "should add a product to the cart" do
      product = FactoryGirl.create(:product)
      visit products_path(product)
      save_and_open_page
      click_on('cart_item_submit')
    end
  end

end

并且/spec/support/spec_helper.rb:

# This file is copied to spec/ when you run 'rails generate rspec:install'
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
require 'capybara/rspec'

# Requires supporting ruby files with custom matchers and macros, etc,
# in spec/support/ and its subdirectories.
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}

RSpec.configure do |config|
  config.mock_with :rspec
  config.use_transactional_fixtures = true
end

...还加载/spec/support/devise.rb:

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

Guard正在后台运行并继续抛出:

Failures:

  1) CartItemsController add stuff to the cart should add a product to the cart
     Failure/Error: sign_in @user
     NoMethodError:
       undefined method `sign_in' for #<RSpec::Core::ExampleGroup::Nested_1::Nested_1:0x1057fd428>
     # ./spec/controllers/add_to_carts_spec.rb:7

我花了最近几个小时尝试各种配置调整和不同的语法,但似乎没有任何改变.有任何想法吗？

(编辑以反映更新的错误)

Answer 1

理想的解决方案是在spec/support/devise.rb上创建一个文件,并通过以下代码在Rspec配置中包含设计测试助手:

Rspec.configure do |config|
  config.include Devise::TestHelpers, :type => :controller
end

type参数仅包含控制器规范中的帮助程序,这是为了避免在测试模型或视图时调用时可能出现的未来问题.这是可选的.

我们决定添加一个离散文件来包含帮助器的原因,而不是像上面那样将它们包含在规范中,因为如果重新生成规范,规范将被覆盖.

Answer 2

出于某种原因,这也不适合我,所以我只是在我的规范中手动包含这个帮助器,如下所示:

describe CartItemsController do
  include Devise::TestHelpers

  # ...
end

Answer 3

这些测试助手不适用于集成/请求规范.在这些情况下测试Devise的推荐方法是访问登录页面,填写表单并提交,然后运行测试.

请参阅David Chelimsky关于此主题的先前SO问题的答案,以获得更完整的解释.