0
這裏是一個小類(在myapp/getters.py
):如何模擬Django模型管理器的方法?
from django.contrib.auth.models import User
class UserGetter:
def get_user(self):
return User.objects.get(username='username')
我想調用模擬出到User.objects.get
,返回MagicMock
,並測試該方法返回我注射。在myapp/tests/tests_getters.py
:
from unittest import TestCase
from django.contrib.auth.models import User, UserManager
from mock import patch, create_autospec
from myapp.getters import UserGetter
class MockTestCase(TestCase):
@patch('myapp.getters.User', autospec=True)
def test(self, user_class):
user = create_autospec(User)
objects = create_autospec(UserManager)
objects.get.return_value = user
user_class.objects.return_value = objects
self.assertEquals(user, UserGetter().get_user())
但是當我運行這個測試(與python manage.py test myapp.tests.tests_getters
)我得到
AssertionError:
<MagicMock name='User.objects().get()' spec='User' id='4354507472'> !=
<MagicMock name='User.objects.get()' id='4360679248'>
爲什麼我不回來我注射模擬?我該如何正確編寫這個測試?
就是這樣。解決方法是將'user_class.objects.return_value = objects'更改爲'user_class.objects = objects'。如果我不修補'User'並將其分配給'User.objects',它也可以工作,但是我懷疑這會污染其他測試。 –