【问题标题】:How can I use pytest-django to create a user object only once per session?如何使用 pytest-django 在每个会话中只创建一次用户对象?
【发布时间】:2020-10-24 14:27:43
【问题描述】:

首先,我厌倦了这个:

@pytest.mark.django_db
@pytest.fixture(scope='session')
def created_user(django_db_blocker):
    with django_db_blocker.unblock():
        return CustomUser.objects.create_user("User", "UserPassword")

def test_api_create(created_user):
    user = created_user()
    assert user is not None

但我收到了 UndefinedTable 错误。所以用@pytest.mark.django_db标记我的fixture并没有真正注册我的Django DB。所以接下来我尝试将 db 对象直接传递给夹具:

@pytest.fixture(scope='session')
def created_user(db, django_db_blocker):
    with django_db_blocker.unblock():
        return CustomUser.objects.create_user("User", "UserPassword")

def test_api_create(created_user):
    user = created_user()
    assert user is not None

然后我得到一个错误

ScopeMismatch: You tried to access the 'function' scoped fixture 'db' with a 'session' scoped request object, involved factories

所以最后,为了确认一切正常,我尝试了:

@pytest.fixture
def created_user(db, django_db_blocker):
    with django_db_blocker.unblock():
        return CustomUser.objects.create_user("User", "UserPassword")

def test_api_create(created_user):
    user = created_user()
    assert user is not None

这工作得很好,但现在我的 create_user 函数在每次设置或拆除我的函数时都会被调用。这里有什么解决办法?

【问题讨论】:

  • 使用django_db_setup 代替db 夹具?
  • 完美,成功了,我把答案贴在下面

标签: python pytest fixtures pytest-django django-fixtures


【解决方案1】:

@hoefling 有答案,我需要通过 django_db_setup 代替。

@pytest.fixture(scope='session')
def created_user(django_db_setup, django_db_blocker):
    with django_db_blocker.unblock():
        return CustomUser.objects.create_user("User", "UserPassword")

【讨论】:

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