django 测试将 request.user 传递给 foreignKey 字段，“Event.creator”必须是“User”实例

Question

我正在尝试为创建事件模型对象的视图编写测试。事件模型包含一个 foreignKey 字段，该字段将 auth user 引用为模型对象的创建者。在测试中，我尝试登录用户，我认为该用户会将 request.user 设置为登录用户。正在测试的视图在创建事件时引用 request.user，当通过 ajax 正常触发但我运行时工作正常测试我不断收到以下错误。我也尝试在测试函数中创建用户，而不是引用在“class.setupTestData()”创建的用户，同样的错误。

错误

ValueError: Cannot assign "<SimpleLazyObject: <django.contrib.auth.models.AnonymousUser object at 0x108ae9cc0>>": "Event.creator" must be a "User" instance.

型号

    class Event(models.Model):
        name = models.CharField(max_length=200)
        event_type = models.CharField(max_length=200, null=True)
        creator = models.ForeignKey(User, on_delete=models.CASCADE, null=True)
        attendees = models.ManyToManyField(User, related_name='attendees')
        start_date = models.DateField(null=True)
        start_time = models.TimeField(null=True)
        end_date = models.DateField(null=True)
        end_time = models.TimeField(null=True)
        location = models.CharField(max_length=200, null=True)
        date_created = models.DateTimeField(auto_now_add=True)
        description = models.TextField()

        def __str__(self):
            return self.name

查看

    def createEvent(request):
        # dec vars
        event_title = str(request.POST['event-title']).title()
        event_type = str(request.POST['event-type'])
        event_location = str(request.POST['event-location'])
        event_description = str(request.POST['event-description'])
        event_start_date = str(request.POST['event-start-date'])
        event_start_time = str(request.POST['event-start-time'])
        event_end_date = str(request.POST['event-end-date'])
        event_end_time = str(request.POST['event-end-time'])
        creator = request.user

        # create event
        Event.objects.create(
            name=event_title,
            event_type=event_type,
            creator=creator,
            location=event_location,
            description=event_description,
            start_date=event_start_date,
            start_time=event_start_time,
            end_date=event_end_date,
            end_time=event_end_time
        )

        # #create response
        response = {
            'status': 'success',
        }

        # send reponse JSON
        return JsonResponse(response)

测试

def test_create_event(self):
    today = timezone.now()
    user = User.objects.get(pk=1)

    # login user
    self.c.login(username=user.username, password=user.password)

    # Check event create
    response = self.c.post('/event/create/', {
        'event-title': 'test create event',
        'event-type': 'combat',
        'event-location': 'ltt 9455',
        'event-description': lorem.paragraph,
        'event-start-date': today.date(),
        'event-end-date': today.date(),
        'event-end-time': today.time(),
        'event-start-time': today.time()
    })

    self.assertTrue()

Answer 1

user.password是hashed密码，所以你在调用client.login()时不能使用它

拨打login时可以使用实际密码

user = User.objects.get(pk=1)
self.client.login(username=user.username, password='actual_password')

或者您可以使用client.force_login() 代替，这不需要密码。

user = User.objects.get(pk=1)
self.client.force_login(user)

请注意，您的失败测试表明您的视图存在问题。如果匿名用户使用该视图，ValueError 将导致 500 服务器错误。最简单的解决方法是使用 login_required 装饰器。

from django.contrib.auth.decorators import login_required

@login_required
def createEvent(request):
    ...