diff --git a/tests/unit/test_url_security.py b/tests/unit/test_url_security.py
index 04b48482d..c10eac965 100755
--- a/tests/unit/test_url_security.py
+++ b/tests/unit/test_url_security.py
@@ -598,6 +598,7 @@ class TestConstants:
     def test_max_url_length(self):
         assert MAX_URL_LENGTH == 2048
 
+
 # ── SSRF IP 检查详细覆盖 ──────────────────────────────────────────────────────