diff --git a/keystone/tests/unit/test_v3_federation.py b/keystone/tests/unit/test_v3_federation.py
index 06ee8a701e..630ba19e80 100644
--- a/keystone/tests/unit/test_v3_federation.py
+++ b/keystone/tests/unit/test_v3_federation.py
@@ -3091,7 +3091,7 @@ class FederatedUserTests(test_v3.RestfulTestCase, FederatedSetupMixin):
                                          user_id=user_id,
                                          domain_id=domain_from_group['id'])
 
-        # get user domains and test for duplicates
+        # get user domains via /OS-FEDERATION/domains and test for duplicates
         r = self.get('/OS-FEDERATION/domains', token=unscoped_token)
         user_domains = r.result['domains']
         user_domain_ids = []
@@ -3099,6 +3099,14 @@ class FederatedUserTests(test_v3.RestfulTestCase, FederatedSetupMixin):
             self.assertNotIn(domain['id'], user_domain_ids)
             user_domain_ids.append(domain['id'])
 
+        # get user domains via /auth/domains and test for duplicates
+        r = self.get('/auth/domains', token=unscoped_token)
+        user_domains = r.result['domains']
+        user_domain_ids = []
+        for domain in user_domains:
+            self.assertNotIn(domain['id'], user_domain_ids)
+            user_domain_ids.append(domain['id'])
+
     def test_list_head_projects_for_user_duplicates(self):
         # create role
         role_ref = unit.new_role_ref()
@@ -3123,7 +3131,7 @@ class FederatedUserTests(test_v3.RestfulTestCase, FederatedSetupMixin):
         self.assignment_api.add_role_to_user_and_project(
             user_id, project_from_group['id'], role_ref['id'])
 
-        # get user projects and test for duplicates
+        # get user projects via /OS-FEDERATION/projects and test for duplicates
         r = self.get('/OS-FEDERATION/projects', token=unscoped_token)
         user_projects = r.result['projects']
         user_project_ids = []
@@ -3131,6 +3139,14 @@ class FederatedUserTests(test_v3.RestfulTestCase, FederatedSetupMixin):
             self.assertNotIn(project['id'], user_project_ids)
             user_project_ids.append(project['id'])
 
+        # get user projects via /auth/projects and test for duplicates
+        r = self.get('/auth/projects', token=unscoped_token)
+        user_projects = r.result['projects']
+        user_project_ids = []
+        for project in user_projects:
+            self.assertNotIn(project['id'], user_project_ids)
+            user_project_ids.append(project['id'])
+
     def test_delete_protocol_after_federated_authentication(self):
         # Create a protocol
         protocol = self.proto_ref(mapping_id=self.mapping['id'])