我在使用设置 DATABASES['default'] = {}
运行测试时遇到了一些问题。
运行./manage.py test
时出现以下错误
$ ./manage.py test --failfast
Creating test database for alias 'mydb'...
E
======================================================================
ERROR: test_admin (myapp.test.MyTest)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/test/testcases.py", line 182, in __call__
self._pre_setup()
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/test/testcases.py", line 754, in _pre_setup
self._fixture_setup()
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/test/testcases.py", line 887, in _fixture_setup
if not connections_support_transactions():
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/test/testcases.py", line 874, in connections_support_transactions
for conn in connections.all())
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/test/testcases.py", line 874, in <genexpr>
for conn in connections.all())
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/utils/functional.py", line 55, in __get__
res = instance.__dict__[self.func.__name__] = self.func(instance)
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 782, in supports_transactions
self.connection.leave_transaction_management()
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 338, in leave_transaction_management
if managed == self.get_autocommit():
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 345, in get_autocommit
self.ensure_connection()
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 133, in ensure_connection
self.connect()
File "/home/thomas/.virtualenvs/tmpapp/local/lib/python2.7/site-packages/django/db/utils.py", line 86, in __exit__
db_exc_type = getattr(self.wrapper.Database, dj_exc_type.__name__)
AttributeError: 'DatabaseWrapper' object has no attribute 'Database'
----------------------------------------------------------------------
Ran 0 tests in 0.001s
FAILED (errors=1)
Destroying test database for alias 'mydb'...
settings.py
..
DATABASES = {
'default': {},
'mydb': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
},
}
DATABASE_ROUTERS = ['myapp.router.MyRouter']
router.py
class MyRouter:
def db_for_read(self, model, **hints):
return 'mydb'
def db_for_write(self, model, **hints):
return 'mydb'
def allow_migrate(self, db, model):
if db == 'default':
return False
return True
测试.py
from django.test import TestCase
class MyTest(TestCase):
def test_admin(self):
self.assertEqual(1, 1)
我做了一些调查,发现 self.connect()
是在与 'default'
别名关联的虚拟后端上调用的。由于虚拟后端没有实现太多功能,因此调用失败。如何使用 DATABASES['default'] = {}
运行测试?
最佳答案
使用不同的 settings.py 文件进行生产/开发/测试(最好)。
或者使用 Sqlite 作为默认条目(最快)。
关于python - Django 无法在 DATABASES 'default' 为空时运行测试,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27686639/