Question

我正在使用设计进行用户身份验证。当我尝试编写跟踪项目的测试（功能正常）时，我收到以下错误

    ERROR["test_should_be_valid", FollowRelationshipTest, 0.245433]
 test_should_be_valid#FollowRelationshipTest (0.25s)
NoMethodError:         NoMethodError: undefined method `env' for nil:NilClass

但是，如果我从test / test_helper.rb中删除include Devise::TestHelpers，则不会出现此类错误。

然而，这会引入新的错误，例如

 ERROR["test_should_create_project", ProjectsControllerTest, 0.331449]
 test_should_create_project#ProjectsControllerTest (0.33s)
NoMethodError:         NoMethodError: undefined method `authenticate' for nil:NilClass
            app/controllers/projects_controller.rb:28:in `create'
            test/controllers/projects_controller_test.rb:21:in `block (2 levels) in <class:ProjectsControllerTest>'
            test/controllers/projects_controller_test.rb:20:in `block in <class:ProjectsControllerTest>'


        app/controllers/projects_controller.rb:28:in `create'
        test/controllers/projects_controller_test.rb:21:in `block (2 levels) in <class:ProjectsControllerTest>'
        test/controllers/projects_controller_test.rb:20:in `block in <class:ProjectsControllerTest>

这些新错误似乎源于在视图中调用current_user等方法（例如<%= current_user.email if current_user %>会产生错误）

我想知道的是如何能够摆脱错误NoMethodError：nil的未定义方法`env'：NilClas，同时仍然能够访问由Devise :: TestHelpers引入的方法

FollowRelationshipTest如下

require 'test_helper'
class FollowRelationshipTest < ActiveSupport::TestCase
  # test "the truth" do
  #   assert true
  # end
  def setup
    @follow_relationship = FollowRelationship.new(follower_id: 1, project_id: 1)
  end

  test "should be valid" do
    assert @follow_relationship.valid?
  end
end

和ProjectsControllerTest与使用scaffolding命令生成的内容相同

Answer 1

很抱歉迟到的回复，但万一其他人偶然发现：

Devise::TestHelpers只应包含在控制器测试中，因此您需要将其添加到ActionController::TestCase，方法是将其添加到测试助手中：

class ActionController::TestCase
  include Devise::TestHelpers
end

设计和测试NoMethodError：未定义的方法`env＆＃39;为零：NilClass

1 个答案: