这一切始于我下载了coverage.py并开始测试我的django项目。一切都很好,但是在我设置在Models.py中的自定义用户管理器上,我缺乏覆盖率。
以下是完整代码。
models.py
以下是完整代码。
models.py
from django.contrib.auth.models import AbstractUser, BaseUserManager
from django.db import models
from django.utils.translation import ugettext_lazy as _
class UserManager(BaseUserManager):
"""Define a model manager for User model with no username field."""
use_in_migrations = True
def _create_user(self, email, password, **extra_fields):
"""Create and save a User with the given email and password."""
if not email:
raise ValueError('The given email must be set')
email = self.normalize_email(email)
user = self.model(email=email, **extra_fields)
user.set_password(password)
user.save(using=self._db)
return user
def create_user(self, email, password=None, **extra_fields):
"""Create and save a regular User with the given email and password."""
extra_fields.setdefault('is_staff', False)
extra_fields.setdefault('is_superuser', False)
return self._create_user(email, password, **extra_fields)
def create_superuser(self, email, password, **extra_fields):
"""Create and save a SuperUser with the given email and password."""
extra_fields.setdefault('is_staff', True)
extra_fields.setdefault('is_superuser', True)
if extra_fields.get('is_staff') is not True:
raise ValueError('Superuser must have is_staff=True.')
if extra_fields.get('is_superuser') is not True:
raise ValueError('Superuser must have is_superuser=True.')
return self._create_user(email, password, **extra_fields)
class CustomUser(AbstractUser):
first_name = models.CharField(max_length=200)
last_name = models.CharField(max_length=200)
# profile_image = models.ImageField(upload_to="users/profile_pic", blank=True)
is_pastor = models.BooleanField(default=True)
home_church = models.ForeignKey(
'church.Church',
on_delete="CASCADE",
blank=True,
null=True)
username = None
email = models.EmailField(_('email address'), unique=True)
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = []
objects = UserManager() ## This is the new line in the User model. ##
我正在尝试测试UserManager中的“_create_user”函数,以下是我的代码:
test.py
class UserManagerTestCase(TestCase):
def test_main_create_user(self):
manager = UserManager()
user = manager._create_user('jdoe@gmail.com', 'password123')
self.assertTrue(isinstance(user, User))
很遗憾,当我调用“_create_user”函数时,出现了类型错误:“NoneType”对象不可调用。
这很奇怪,因为模型管理器在创建用户时按预期工作,并且通过打印语句确认电子邮件和**extra_fields参数均不为None。
一些在线研究表明,可能是因为Manager不是直接调用的设计。那是不是这种情况呢?如果是,如何处理单元测试?