Upgraded to Python Social Auth 0.2.21 to resolve migration issue

common/djangoapps/third_party_auth/tests/utils.py

@@ -2,11 +2,10 @@
 import json
 
 import httpretty
-
 from provider.constants import PUBLIC
 from provider.oauth2.models import Client
 from social.apps.django_app.default.models import UserSocialAuth
-
+from social.backends.facebook import FacebookOAuth2
 from student.tests.factories import UserFactory
 
 from .testutil import ThirdPartyAuthTestMixin
@@ -81,7 +80,7 @@ class ThirdPartyOAuthTestMixin(ThirdPartyAuthTestMixin):
 class ThirdPartyOAuthTestMixinFacebook(object):
     """Tests oauth with the Facebook backend"""
     BACKEND = "facebook"
-    USER_URL = "https://graph.facebook.com/v2.3/me"
+    USER_URL = FacebookOAuth2.USER_DATA_URL
     # In facebook responses, the "id" field is used as the user's identifier
     UID_FIELD = "id"