Fix session api (used groups instead of group_ids)

redash/handlers/authentication.py

@@ -179,7 +179,7 @@ def session(org_slug=None):
             'id': current_user.id,
             'name': current_user.name,
             'email': current_user.email,
-            'groups': current_user.groups,
+            'groups': current_user.group_ids,
             'permissions': current_user.permissions
         }
     else:

tests/handlers/test_authentication.py

@@ -65,3 +65,9 @@ class TestLogin(BaseTestCase):
 
         response = self.get_request('/login', org=self.factory.org)
         self.assertEqual(response.status_code, 429)
+
+
+class TestSession(BaseTestCase):
+    # really simple test just to trigger this route
+    def test_get(self):
+        self.make_request('get', '/api/session', user=self.factory.user)