我在测试 Flask 应用程序时遇到了一些小问题。我的观点是这样的:
def prelogin():
email = request.args.get('email')
if not email:
return '', 204
user = User.query.filter({'email': email}).first()
if not user:
return '', 204
address = current_app.config['UPLOADED_PHOTOS_URL']
try:
mongo_photo = pymongo.db.photos.find_one(user.photo)
photo = address + mongo_photo['file']
except (KeyError, AttributeError):
photo = None
return jsonify({
'email': email,
'fullname': user.fullname,
'photo': photo
})
我的测试函数是这样的:
@patch('arounded.userv2.views.User')
@patch('arounded.userv2.views.pymongo')
def test_valid_prelogin(self, mock_user, mock_pymongo):
user_config = {
'filter.return_value.first.return_value.fullname': 'Someone'
}
mock_user.query.configure_mock(**user_config)
mock_pymongo.db.photos.find_one.return_value = {'file': 'no-photo.png'}
response = self.client.get(
'/api/v2/users/prelogin?email=someone@example.com')
self.assert_status(response, 200)
如果我尝试在测试函数中打印模拟对象，它们会返回正确的值。然而，在我看来，我仍然得到:
arounded/userv2/views.py line 40 in prelogin
'photo': photo
/home/sputnikus/.virtualenvs/arounded_site2/lib/python2.7/site-packages/flask_jsonpify.py line 60 in jsonpify
indent=None if request.is_xhr else 2)),
/usr/lib64/python2.7/json/__init__.py line 250 in dumps
sort_keys=sort_keys, **kw).encode(obj)
/usr/lib64/python2.7/json/encoder.py line 209 in encode
chunks = list(chunks)
/usr/lib64/python2.7/json/encoder.py line 434 in _iterencode
for chunk in _iterencode_dict(o, _current_indent_level):
/usr/lib64/python2.7/json/encoder.py line 408 in _iterencode_dict
for chunk in chunks:
/usr/lib64/python2.7/json/encoder.py line 442 in _iterencode
o = _default(o)
/usr/lib64/python2.7/json/encoder.py line 184 in default
raise TypeError(repr(o) + " is not JSON serializable")
TypeError: <MagicMock name='pymongo.db.photos.find_one().__getitem__().__radd__()' id='67038032'> is not JSON serializable
mongo_photo变量返回为 <MagicMock name='pymongo.db.photos.find_one()' id='59485392'> .
我是否使用了错误的方式，在错误的地方打补丁？
最佳答案
您的 mock_user 和 mock_pymongo 参数顺序错误；最外层的@patch(第一个/最远的方法)是最后一个方法参数。应该是
@patch('arounded.userv2.views.User')
@patch('arounded.userv2.views.pymongo')
def test_valid_prelogin(self, mock_pymongo, mock_user):
关于python - 在 Flask 中模拟 pymongo，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/16884220/