使用django manage.py test命令

如何解决使用django manage.py test命令

我有一个测试用例来测试我的注册API，在该API中，如果电子邮件已被使用，它将进行响应；如果创建成功，它将返回相同的电子邮件ID。

tests.py

class SignupTestCase(APITestCase):
    url = reverse('todos:signup')

    @classmethod
    def setUpTestData(self):
        self.random_num = random.randint(100,999)
        self.username = f'Testing{self.random_num}'
        self.email = f'Testing{self.random_num}@gmail.com'
        self.password = f'Testing{self.random_num}'

    def test_signup_pass(self):
        payload = {
            'username': self.username,'email': self.email,'password': self.password,}
        response = self.client.post(self.url,payload)      
        res_data = json.loads(response.content)
        self.assertEqual(response.status_code,200)
        self.assertEqual(res_data.get('email'),self.email)
        self.assertEqual(res_data.get('error'),None)

    def test_signup_fail(self):
        payload = {
            'username': self.username,None)
        self.assertEqual(res_data.get('error'),'Email is taken')

在这里，第二个测试test_signup_fail必须通过，因为我使用的是与test_signup_pass中使用的电子邮件相同的电子邮件，因此它应该在django注册方法中引发IntegrityError并在“接收电子邮件”时返回错误消息。 / p>

views.py

from django.http import JsonResponse
from django.contrib.auth.models import User
from rest_framework.views import APIView
from django.db import IntegrityError

# Create your views here.
class signup(APIView):
    def post(self,request):
        data = request.data
        email = data.get('email')
        password = data.get('password')
        username = data.get('username')
    
        user = User()
        user.email = email
        user.password = password
        user.username = username
    
        try:
            user.save()
        except IntegrityError:
            return JsonResponse({'error': 'Email is taken'})

        return JsonResponse({'success': 'Successfully registered','email': user.email})

输出

py manage.py test todos
Creating test database for alias 'default'...
System check identified no issues (0 silenced).
F.
======================================================================
FAIL: test_signup_fail (todos.tests.SignupTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/g33k/Programming/django-learning/wordcount-project/todos/tests.py",line 42,in test_signup_fail
    self.assertEqual(res_data.get('email'),None)
AssertionError: '[e-mail]' != None

----------------------------------------------------------------------
Ran 2 tests in 0.010s

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

我什至用pdb检查了视图，

Creating test database for alias 'default'...
System check identified no issues (0 silenced).
> views.py(19)post()
-> try:
(Pdb) user
<User: Testing502>
(Pdb) n
> /views.py(20)post()
-> user.save()
(Pdb) n
> /views.py(24)post()
-> return JsonResponse({'success': 'Successfully registered','email': user.email})
(Pdb) c
F> /views.py(19)post()
-> try:
(Pdb) user
<User: Testing502>
(Pdb) n
> /views.py(20)post()
-> user.save()
(Pdb) n
> /views.py(24)post()
-> return JsonResponse({'success': 'Successfully registered','email': user.email})
(Pdb) 

所以，我的问题是，每种测试方法都使用不同的数据库，