Allow authentication without Auth ID.

test_oauth/backend.py

@@ -23,10 +23,15 @@ class TESTOAuth2Backend(ModelBackend):
 
         self.run_verifiers(profile)
 
-        user, _ = get_user_model().objects.get_or_create(
-            pk=profile['id'],
-            username=profile['username']
-        )
+        if getattr(settings, 'TEST_OAUTH_RESPECT_ID', False):
+            user, _ = get_user_model().objects.get_or_create(
+                pk=profile['id'],
+                username=profile['username']
+            )
+        else:
+            user, _ = get_user_model().objects.get_or_create(
+                username=profile['username']
+            )
 
         data, _ = TESTOAuth2Data.objects.update_or_create(
             user=user,