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我在测试 DRF 教程中内置的 API 时遇到问题：https ://www.django-rest-framework.org/tutorial/1-serialization/

我有观点：

class SnippetList(generics.ListCreateAPIView):
    permission_classes = [permissions.IsAuthenticatedOrReadOnly]
    queryset = Snippet.objects.all()
    serializer_class = SnippetSerializer
    def perform_create(self, serializer):
        serializer.save(owner=self.request.user)

以及用于测试该视图的测试类：

class SnippetsList(APITestCase):
    def setUp(self):
        self.user = User.objects.create_superuser(username='testowy', password='test')
        self.client = APIClient()
        Snippet.objects.create(code="print('hello')", owner=self.user)
        Snippet.objects.create(code="print('world')", owner=self.user)
        self.payload = {
            "code": "print(edit)"
        }

    def test_get_snippets_list(self):
        response = self.client.get(reverse('snippet_list'))
        snippets = Snippet.objects.all()
        serializer = SnippetSerializer(snippets, many=True)
        self.assertEqual(response.data, serializer.data)
        self.assertEqual(response.status_code, status.HTTP_200_OK)

    def test_post_snippets_list(self):
        self.client.force_authenticate(self.user)
        response = self.client.post(reverse('snippet_list'), json.dumps(self.payload), format='json')
        self.assertEqual(response.status_code, status.HTTP_201_CREATED)

当我使用 python manage.py test 运行我的测试时，第一个测试（对于 get 方法）正在通过，但第二个我得到这个输出：

    self.assertEqual(response.status_code, status.HTTP_201_CREATED) AssertionError: 400 != 201

在登录后的手动测试中一切正常，有谁知道我在这里缺少什么？

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