Ruby on rails rails rspec与Desive gem共享的示例

我有这些共享的示例，用于测试控制器身份验证的方法

支持/控制器/身份验证\u helpers.rb

module ControllerHelpers
  include Devise::TestHelpers

  shared_examples_for 'authenticate user' do |user, method, action, url_params={}|
    before(:each) do 
      setup_controller_for_warden
      request.env["devise.mapping"] = Devise.mappings[:user]
    end
    it "should redirect visitors to login page" do
      sign_out user
      if method == :get
        get action, url_params
      elsif method == :post
        post action, url_params
      elsif method == :put
        put action, url_params
      elsif method == :delete
        delete action, url_params
      end
      response.should redirect_to new_user_session_path
    end
    it "should allow user" do
      sign_in user
      if method == :get
        get action, url_params
      elsif method == :post
        post action, url_params
      elsif method == :put
        put action, url_params
      elsif method == :delete
        delete action, url_params
      end
      response.should be_success
    end
  end

end

require 'spec_helper'

describe BriefController do
  render_views

  before(:all) do
    @customer=Factory(:customer)
    @project=Factory(:project_started, :owner => @customer)
  end

  context 'get :new' do
    it_behaves_like 'authenticate user', @customer, :get, :new, {:project_id => @project.to_param} 
  end
end

context 'get :new' do
    it_behaves_like 'authenticate user', :get, :new do 
      let(:user) { @customer }
      let(:url_params) { { :project_id => @project.to_param } }
    end
  end

我想把它和我的控制器规范文件一起使用

简要说明控制器规范rb

module ControllerHelpers
  include Devise::TestHelpers

  shared_examples_for 'authenticate user' do |user, method, action, url_params={}|
    before(:each) do 
      setup_controller_for_warden
      request.env["devise.mapping"] = Devise.mappings[:user]
    end
    it "should redirect visitors to login page" do
      sign_out user
      if method == :get
        get action, url_params
      elsif method == :post
        post action, url_params
      elsif method == :put
        put action, url_params
      elsif method == :delete
        delete action, url_params
      end
      response.should redirect_to new_user_session_path
    end
    it "should allow user" do
      sign_in user
      if method == :get
        get action, url_params
      elsif method == :post
        post action, url_params
      elsif method == :put
        put action, url_params
      elsif method == :delete
        delete action, url_params
      end
      response.should be_success
    end
  end

end

require 'spec_helper'

describe BriefController do
  render_views

  before(:all) do
    @customer=Factory(:customer)
    @project=Factory(:project_started, :owner => @customer)
  end

  context 'get :new' do
    it_behaves_like 'authenticate user', @customer, :get, :new, {:project_id => @project.to_param} 
  end
end

context 'get :new' do
    it_behaves_like 'authenticate user', :get, :new do 
      let(:user) { @customer }
      let(:url_params) { { :project_id => @project.to_param } }
    end
  end

当我运行这些规范文件时，我遇到了错误

Failure/Error: sign_in user
     RuntimeError:
       Could not find a valid mapping for

---

你知道我如何处理这个错误吗？

我在这里可能是错的，但我认为：

@customer=Factory(:customer)
@project=Factory(:project_started, :owner => @customer)

应该是：

@customer=FactoryGirl(:customer)
@project=FactoryGirl(:project_started, :owner => @customer)

---

简单的错误，我自己也犯过几次。尝试一下，看看它是否能解决问题，希望能有所帮助

我认为问题在于

的参数的行为类似于
在执行
代码之前的
，因此第一个参数（
@user
）的计算结果为
nil
，导致了进一步的问题。我花了很多时间用自己的代码来解决这个问题

关于一个相关的问题，我最近读到一条建议，避免在这些类型的测试中使用实例变量，因为您希望在未定义它们时引用它们失败。这对我来说很有意义，我现在就是这么做的。
我用let block作为实例变量来解决我的问题

shared_examples_for 'authenticate user' do |method, action|
    before(:each) do 
      setup_controller_for_warden
      request.env["devise.mapping"] = Devise.mappings[:user]
    end
    it "should redirect visitors to login page" do
      if method == :get
        get action, url_params
      elsif method == :post
        post action, url_params
      elsif method == :put
        put action, url_params
      elsif method == :delete
        delete action, url_params
      end
      response.should redirect_to new_user_session_path
    end

控制器规范rb

module ControllerHelpers
  include Devise::TestHelpers

  shared_examples_for 'authenticate user' do |user, method, action, url_params={}|
    before(:each) do 
      setup_controller_for_warden
      request.env["devise.mapping"] = Devise.mappings[:user]
    end
    it "should redirect visitors to login page" do
      sign_out user
      if method == :get
        get action, url_params
      elsif method == :post
        post action, url_params
      elsif method == :put
        put action, url_params
      elsif method == :delete
        delete action, url_params
      end
      response.should redirect_to new_user_session_path
    end
    it "should allow user" do
      sign_in user
      if method == :get
        get action, url_params
      elsif method == :post
        post action, url_params
      elsif method == :put
        put action, url_params
      elsif method == :delete
        delete action, url_params
      end
      response.should be_success
    end
  end

end

require 'spec_helper'

describe BriefController do
  render_views

  before(:all) do
    @customer=Factory(:customer)
    @project=Factory(:project_started, :owner => @customer)
  end

  context 'get :new' do
    it_behaves_like 'authenticate user', @customer, :get, :new, {:project_id => @project.to_param} 
  end
end

context 'get :new' do
    it_behaves_like 'authenticate user', :get, :new do 
      let(:user) { @customer }
      let(:url_params) { { :project_id => @project.to_param } }
    end
  end

感谢您的关注，但我在所有型号规格中都使用了这些线条，它工作正常。