我正在尝试模拟VKAuth类中的“self.api.friends.get”方法:
import vk
class VKAuth(object):
def __init__(self, access_token, user):
self.session = vk.Session(access_token = access_token)
self.api = vk.API(self.session)
def follow(self):
vk_friends = self.api.friends.get()
来自测试模块test_views.py的:
from mock import patch
from ..auth_backends.vk_backend import VKAuth
class AddUsersToList(TestCase):
def test_auth_vk(self, mock_get):
... etc ...
auth_token = 'ceeecdfe0eb4bf68ceeecdfe0eb4bf68ceeecdfe0eb4bf68652530774ced6cbc8cba0'
token = user.auth_token.key
self.client.defaults['HTTP_AUTHORIZATION'] = 'Token {}'.format(token)
with patch.object(accounts.auth_backends.vk_backend.VKAuth, 'api'): #point where we're mocking
response = self.client.post(reverse('auth-social', kwargs=dict(backend='vk')), dict(access_token=auth_token), follow=True)
在上面基于SNView类的视图中调用'auth-social'时创建了VKAuth类的实例:
class SNView(generics.GenericAPIView):
serializer_class = serializers.AuthSocialSerializer
permission_classes = (rest_permissions.IsAuthenticated)
def post(self, request, backend, *args, **kwargs):
s = self.get_serializer(data=request.DATA)
if s.is_valid():
auth_backends = {
'vk': VKAuth,
'facebook': FBAuth
}
if backend in auth_backends:
auth_backend = auth_backends[backend](access_token=s.data['access_token'], user=self.request.user)
我收到错误:
AttributeError: <class 'accounts.auth_backends.vk_backend.VKAuth' doens't have the attribute 'api'
我应该写什么,而不是当前的patch.object到达api.friends.get并嘲笑它?
UPD:
更确切地说,我想要一些相当于:
auth_token = 'ceeecdfe0eb4bf68ceeecdfe0eb4bf68ceeecdfe0eb4bf68652530774ced6cbc8cba0'
user = User.objects.get(id = 2)
vk_auth = VKAuth(auth_token, user)
vk_ids=[111111,2222222,3333333,44444444]
vk_auth.authenticate()
vk_auth.api.friends = MagicMock(name='get', return_value=None)
vk_auth.api.friends.get = MagicMock(name='get', return_value=vk_ids)
data = vk_auth.follow()
但是在我们通过self.client.post()向django-rest-framework api发出请求之前,我就嘲笑它。
谢谢!
答案 0 :(得分:4)
你正在修补错误的东西。在VKAuth
:
self.api = vk.API(self.session)
将api
属性添加到VKAuth
self
对象。当你打电话
patch.object(accounts.auth_backends.vk_backend.VKAuth, 'api')
您正在修补api
类的VKAuth
静态属性,而不是对象属性。
您应该修改vk.API
。
with patch('vk.API', autospec=True) as mock_api:
response = self.client.post(reverse('auth-social', kwargs=dict(backend='vk')), dict(access_token=auth_token), follow=True)
注意:
patch
时才使用patch.object
。autospec=True
不是强制性的,而是I strongly encourage to use it。patch
上下文中self.api
将等于mock_api.return_value
,因为来电vk.API(self.session)
就像来电mock_api()
;换句话说,mock_api
是用于替换vk.API
引用的模拟对象。现在,如果您希望通过某种行为填充mock_api.return_value
,可以在with
上下文中对其进行配置:
with patch('vk.API', autospec=True) as mock_api:
m_api = mock_api.return_value
m_api.friends.return_value = None
m_api.friends.get.return_value = vk_ids
.... Your test