feat: stabilize multi-region runtime sync and worker orchestration

domainCheck/tests/test_redis_client.py

@@ -0,0 +1,39 @@
+import unittest
+from unittest.mock import patch
+
+from app.utils.redis_client import get_redis_client, reset_redis_clients_for_tests
+
+
+class DomainCheckRedisClientTests(unittest.TestCase):
+    def tearDown(self) -> None:
+        reset_redis_clients_for_tests()
+
+    @patch("app.utils.redis_client.redis.Redis")
+    @patch("app.utils.redis_client.redis.BlockingConnectionPool")
+    def test_standard_client_is_cached_per_process(self, mock_pool, mock_redis) -> None:
+        client = object()
+        mock_redis.return_value = client
+
+        first = get_redis_client()
+        second = get_redis_client()
+
+        self.assertIs(first, client)
+        self.assertIs(second, client)
+        mock_pool.assert_called_once()
+        mock_redis.assert_called_once()
+
+    @patch("app.utils.redis_client.redis.Redis")
+    @patch("app.utils.redis_client.redis.BlockingConnectionPool")
+    def test_pubsub_role_uses_separate_cached_client(self, mock_pool, mock_redis) -> None:
+        mock_redis.side_effect = [object(), object()]
+
+        standard_client = get_redis_client()
+        pubsub_client = get_redis_client(role="pubsub")
+
+        self.assertIsNot(standard_client, pubsub_client)
+        self.assertEqual(2, mock_pool.call_count)
+        self.assertEqual(2, mock_redis.call_count)
+
+
+if __name__ == "__main__":
+    unittest.main()