集成测试中的访问会话 [英] Accessing session in integration test

问题描述

我是通过Michael Hartl的Rails教程工作的Rails初学者，并且收到一个错误，我不知道如何解决.作为参考，这是为了实现清单9.24( https://www.railstutorial.org/book /advanced_login ).

I'm a Rails beginner working through Michael Hartl's Rails Tutorial and am receiving an error I have no idea how to fix. For reference, this is for implementing the changes in listing 9.24 (https://www.railstutorial.org/book/advanced_login).

我跳过了第9章(因为它可能是可选的)，但在第10章中要求包括清单9.24中所做的更改，所以我这样做了，但我的测试仍然失败.

I skipped chapter 9 (since it is supposedly optional) but in Chapter 10 it asks to include the changes made in listing 9.24 so I did and my tests are still failing.

这是我在运行rails test时收到的错误

This is the error I am receiving when I run rails test

Error:
UsersEditTest#test_unsuccessful_edit:
NoMethodError: undefined method `session' for nil:NilClass
    test/test_helper.rb:18:in `log_in_as'
    test/integration/users_edit_test.rb:14:in `block in <class:UsersEditTest>'


bin/rails test test/integration/users_edit_test.rb:12

E

Error:
UsersEditTest#test_successful_edit:
NoMethodError: undefined method `session' for nil:NilClass
    test/test_helper.rb:18:in `log_in_as'
    test/integration/users_edit_test.rb:28:in `block in <class:UsersEditTest>'

失败的测试(在test/integration/users_edit_test.rb中)是:

The tests (in test/integration/users_edit_test.rb) that are failing are:

test "successful edit" do
    log_in_as(@user)
    get edit_user_path(@user)
... end
test "unsuccessful edit" do
     log_in_as(@user)
    get edit_user_path(@user)
... end

这是被调用的integration/test_helper方法

and here is the integration/test_helper method that is being called

# Log in as a particular user.
  def log_in_as(user)
    session[:user_id] = user.id
  end

尤其令人困惑的是，测试帮助器中还有另一种方法也使用会话，并且在user_login_test中被调用可以很好地工作.

What is especially confusing is that there is another method in the test helper that also uses sessions, and is called in user_login_test which works fine.

任何帮助将不胜感激！

推荐答案

为了将来遇到这个问题的任何人的利益，对于集成测试，您需要定义一个test_helper方法，该方法发布到会话控制器create方法中，而不是专门修改会话，例如

For the benefit of anyone coming across this question in the future, for integration tests you'll need to define a test_helper method that posts to the session controllers create method, not modify the session specifically e.g.

class ActionDispatch::IntegrationTest
    def log_in_as(user, password: 'password')
        post login_path, params: { session: { email: user.email, password: password} }
    end
end

您的其他会话方法起作用的原因是，它没有为会话哈希分配任何内容，仅检查值是否存在.对于集成测试，您不能直接永久地修改会话哈希.

The reason your other session method works is because it's not assigning anything to the session hash, just checking if a value exists or not. For integration tests, you can't modify the session hash directly with permanence.

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