self.assertEqual(response.status_code, status.HTTP_200_OK) AssertionError: 404 != 200

Question

这是错误来自

def test_single_status_retrieve(self):
            serializer_data = ProfileStatusSerializer(instance=self.status).data
            response = self.client.get(reverse("status-detail", kwargs={"pk": 1}))
            self.assertEqual(response.status_code, status.HTTP_200_OK)
            response_data = json.loads(response.content)
            self.assertEqual(serializer_data, response_data)

似乎错误来自其他地方。

这是我的设置

def setUp(self):
        self.user = User.objects.create_user(username="test2",
                                            password="change123",
                                            )
        self.status = ProfileStatus.objects.create(user_profile=self.user.profile, 
                                                    status_content="status test")                             
        self.token = Token.objects.create(user=self.user)
        self.api_authentication()

这里是urls.py文件

from django.db import router
from django.urls import include, path
from rest_framework.routers import DefaultRouter
from profiles.api.views import (AvatarUpdateView,
                                ProfileViewSet, 
                                ProfileStatusViewSet,
                                )

router = DefaultRouter()
router.register(r"profiles", ProfileViewSet)
router.register(r"status", ProfileStatusViewSet, basename="status")

urlpatterns = [
    path("", include(router.urls)),
    path("avatar/", AvatarUpdateView.as_view(), name="avatar-update"),
]

这是我运行测试时得到的

(ProjectName) bash-3.2$ python3 manage.py test Creating test database for alias 'default'... System check identified no issues (0 silenced). F......... ================================================================= FAIL: test_single_status_retrieve (profiles.tests.ProfileStatusViewSetTestCase) ---------------------------------------------------------------------- Traceback (most recent call last): File "path.../ProjectName/src/profiles/tests.py", line 101, in test_single_status_retrieve self.assertEqual(response.status_code, status.HTTP_200_OK) AssertionError: 404 != 200

---------------------------------------------------------------------- Ran 10 tests in 1.362s

FAILED (failures=1) Destroying test database for alias 'default'...

Answer 1

不要忘记 change/create/delete 请求的 drf 中的 headers。 .

此外，您需要在 url.py 中添加 app_name: your_app_name 并将其放在 reverse() url.

中

像这样。

获取请求的 Ulr：reverse('your_app_name:your_router_basename-list')
Url 对于 delte/change 请求：reverse('your_app_name:your_router_basename-detail')

不要忘记在 response 中您需要放置：1- url、2- 数据和 3- JSON 格式。在 create/delete/change 个请求的情况下使用 headers。

试试这个方法：

def test_single_status_retrieve(self):

    serializer_data = ProfileStatusSerializer(instance=self.status).data
    
    # HERE
    response = self.client.get(reverse("your_app_name:profile-detail", kwargs={"pk": 1}), serializer_data, headers={'content-type': 'application/json'})

    self.assertEqual(response.status_code, status.HTTP_200_OK)
    response_data = json.loads(response.content)
    self.assertEqual(serializer_data, response_data)

Answer 2

问题出在这个文件中

Views.py 在文件夹 profiles/api

from rest_framework import generics, mixins, viewsets
from rest_framework.filters import SearchFilter
from rest_framework.permissions import IsAuthenticated
from rest_framework.viewsets import ModelViewSet

from profiles.api.permissions import IsOwnProfileOrReadOnly, IsOwnerOrReadOnly
from profiles.api.serializers import (ProfileAvatarSerializer,
                                      ProfileSerializer,
                                      ProfileStatusSerializer,
                                     )
from profiles.models import Profile, ProfileStatus


class AvatarUpdateView(generics.UpdateAPIView):
    serializer_class = ProfileAvatarSerializer
    permission_classes = [IsAuthenticated]

    def get_object(self):
        profile_object = self.request.user.profile
        return profile_object


class ProfileViewSet(mixins.UpdateModelMixin,
                     mixins.ListModelMixin,
                     mixins.RetrieveModelMixin,
                     viewsets.GenericViewSet):
    queryset = Profile.objects.all()
    serializer_class = ProfileSerializer
    permission_classes = [IsAuthenticated, IsOwnProfileOrReadOnly]
    filter_backends = [SearchFilter]
    search_fields = ["city"]


class ProfileStatusViewSet(ModelViewSet):
    serializer_class = ProfileStatusSerializer
    permission_classes = [IsAuthenticated, IsOwnerOrReadOnly]

    def get_queryset(self):
        queryset = ProfileStatus.objects.all()
        username = self.request.query_params.get("username", None)
        if username is not None:
            queryset = queryset.filter(user_profile__user__username=username)
            return queryset

    def perform_create(self, serializer):
        user_profile = self.request.user.profile
        serializer.save(user_profile=user_profile)

改为

from rest_framework import generics, mixins, viewsets
from rest_framework.filters import SearchFilter
from rest_framework.permissions import IsAuthenticated
from rest_framework.viewsets import ModelViewSet

from profiles.api.permissions import IsOwnProfileOrReadOnly, IsOwnerOrReadOnly
from profiles.api.serializers import (ProfileAvatarSerializer,
                                      ProfileSerializer,
                                      ProfileStatusSerializer,
                                     )
from profiles.models import Profile, ProfileStatus


class AvatarUpdateView(generics.UpdateAPIView):
    serializer_class = ProfileAvatarSerializer
    permission_classes = [IsAuthenticated]

    def get_object(self):
        profile_object = self.request.user.profile
        return profile_object


class ProfileViewSet(mixins.UpdateModelMixin,
                     mixins.ListModelMixin,
                     mixins.RetrieveModelMixin,
                     viewsets.GenericViewSet):
    queryset = Profile.objects.all()
    serializer_class = ProfileSerializer
    permission_classes = [IsAuthenticated, IsOwnProfileOrReadOnly]
    filter_backends = [SearchFilter]
    search_fields = ["city"]


class ProfileStatusViewSet(ModelViewSet):
    serializer_class = ProfileStatusSerializer
    permission_classes = [IsAuthenticated, IsOwnerOrReadOnly]

    def get_queryset(self):
        queryset = ProfileStatus.objects.all()
        username = self.request.query_params.get("username", None)
        if username is not None:
            queryset = queryset.filter(user_profile__user__username=username)
        return queryset

    def perform_create(self, serializer):
        user_profile = self.request.user.profile
        serializer.save(user_profile=user_profile)

很难发现，提示看一下 def get_queryset(self):

中的 return queryset

self.assertEqual(response.status_code, status.HTTP_200_OK) AssertionError: 404 != 200

self.assertEqual(response.status_code, status.HTTP_200_OK) AssertionError: 404 != 200

django

automated-tests

django-rest-framework

python-3.9