fix: tighten isolation test assertions to expect 410

Author: asheshv

web/pgadmin/browser/server_groups/servers/tests/test_server_data_isolation.py

@@ -64,8 +64,8 @@ def runTest(self):
             utils.SERVER_GROUP, self.server_id)
         response = self.tester.get(url, follow_redirects=True)
         # Expect 410 Gone (server not accessible to this user)
-        self.assertIn(
-            response.status_code, [404, 410],
+        self.assertEqual(
+            response.status_code, 410,
             'Non-admin user should not access another user\'s '
             'private server. Got status {0}'.format(
                 response.status_code)

web/pgadmin/browser/server_groups/tests/test_sg_data_isolation.py

@@ -61,8 +61,8 @@ def runTest(self):
 
         url = '/browser/server_group/obj/{0}'.format(self.sg_id)
         response = self.tester.get(url, content_type='html/json')
-        self.assertIn(
-            response.status_code, [404, 410],
+        self.assertEqual(
+            response.status_code, 410,
             'Non-admin user should not access another user\'s '
             'server group. Got status {0}'.format(
                 response.status_code)