我是 Python 和 Django 中单元测试和模拟的新手。
这是我的模型(简化版):
from django.db import models
from django.contrib.auth.models import User
class KangaUserManager(models.Manager):
def create(self, username, email, password, last_name, first_name, request, registered=True, send_confirmation=True):
kanga_user = KangaUser()
kanga_user.user = User.objects.create_user(
username=username,
email=email,
password=password,
first_name=first_name,
last_name=last_name
)
return kanga_user
class KangaUser(models.Model):
objects = KangaUserManager()
user = models.OneToOneField(User)
我想断言调用了 User.objects.create_user,但实际上并没有调用它。我认为模拟库是可以使用的库,但我什么也没做。
我试过这样的事情:
def test_create(self):
with mock.patch('django.contrib.auth.models.UserManager') as usermanager_mock:
kangauser_manager = KangaUserManager()
kangauser_manager.create(self.username, self.email, self.password, self.last_name, self.first_name, self.request, self.registered, self.send_confirmation)
self.assertTrue(usermanager_mock.create_user.called)
还有那个(还有很多我不记得的事情 :D)
def test_create(self):
with mock.patch('django.contrib.auth.models.User') as user_mock:
user_mock.objects = mock.MagicMock()
user_mock.objects.create_user = mock.MagicMock()
kangauser_manager = KangaUserManager()
kangauser_manager.create(self.username, self.email, self.password, self.last_name, self.first_name, self.request, self.registered, self.send_confirmation)
self.assertTrue(user_mock.objects.create_user.called)
但我总是看到方法没有被调用
我做错了什么?
(编辑 1:添加了一些导入)
编辑 2:
在进行 Alex martelli 建议的改编时,我遇到了另一个错误,
ValueError: Cannot assign "<MagicMock name='User.objects.create_user()' id='55229392'>": "KangaUser.user" must be a "User" instance.
修改后的代码:
from django.db import models
from django.contrib.auth import models as auth_model
class KangaUserManager(models.Manager):
def create(self, username, email, password, last_name, first_name, request, registered=True, send_confirmation=True):
kanga_user = KangaUser()
kanga_user.user = auth_model.User.objects.create_user(
username=username,
email=email,
password=password,
first_name=first_name,
last_name=last_name
)
return kanga_user
class KangaUser(models.Model):
objects = KangaUserManager()
user = models.OneToOneField(auth_model.User)
最佳答案
使用MagicMock需要返回一个值。
from unittest.mock import MagicMock
thing = KangaUserManager()
thing.create_user = MagicMock(return_value=True)
self.assertTrue(thing.create_user(**user_kwargs))
关于python - Django 单元测试 - 如何断言自定义管理器调用 UserManager.create_user 方法?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27608153/