How do I write setUpClass() and tearDownClass() creating and logging in a user?(Django Rest FrameWork)

Question

I have this test case written for two models with local permission_classes, [IsAdminUser] and [IsAuthenticated] respectively. After running the test cases both the test are failed and according to the exception messages, it is clear that the user is not getting logged in.

class PermissionClassesTest(APITestCase):
    
    @classmethod
    def setUpClass(cls):
        super(PermissionClassesTest, cls).setUpClass()
        print('running before tests')
        cls.user = User.objects.create_user(username='admin', password='qwefghbnm', is_staff= True)
        cls.client = APIClient()
        cls.client.login(username=cls.user.username, password='qwefghbnm')

    @classmethod
    def tearDownClass(cls):
        super(PermissionClassesTest,cls).tearDownClass()
        print('running after test')
        
    def test_SalaryDetail_local_permission(self):
        response = self.client.get('/salaryDetails/')
        self.assertEqual(json.dumps(response.data), '{"detail": "You do not have permission to perform this action."}')

    def test_EmployeeDetail_local_permission(self):
        response = self.client.get('/employeeDetails/')
        self.assertTrue(status.is_success(response.status_code))```

Answer 1

Django will set self.client per default to an instance of django.test.client.Client . You should make your client available at a different name eg. cls.api_client = APIClient() . Note that if you are setting up data in in setUpClass() you are also responsible for removing it again in tearDownClass() , for example remove the user you created as Django will not handle this for you.