diff --git a/tests/unit/test_auth_service.py b/tests/unit/test_auth_service.py
index 2f2ec34da..40f1744c2 100755
--- a/tests/unit/test_auth_service.py
+++ b/tests/unit/test_auth_service.py
@@ -12,10 +12,14 @@ import pytest
 import jwt as pyjwt
 from jwt.exceptions import ExpiredSignatureError, InvalidTokenError
 
-from packages.application.auth.password_hasher import PasswordHasher, PasswordValidator, password_hasher, password_validator
+from packages.application.auth.password_hasher import (
+    PasswordHasher,
+    PasswordValidator,
+    password_hasher,
+    password_validator,
+)
 from packages.application.auth.jwt_service import JWTConfig, JWTService, TokenType
 
-
 # ── PasswordHasher 测试 ──────────────────────────────────────────────────────
 
 
@@ -226,8 +230,10 @@ class TestPasswordValidator:
     def test_special_chars_all_types(self):
         """验证各种特殊字符都能识别"""
         v = PasswordValidator(
-            min_length=8, require_uppercase=False,
-            require_lowercase=False, require_digit=False,
+            min_length=8,
+            require_uppercase=False,
+            require_lowercase=False,
+            require_digit=False,
             require_special=True,
         )
         for char in "!@#$%^&*()_+-=[]{}|;:,.<>?~":
@@ -289,15 +295,18 @@ class TestJWTConfig:
         with pytest.raises(ValueError):
             JWTConfig(secret_key=None)
 
-    @pytest.mark.parametrize("insecure", [
-        "your-secret-key-change-in-production",
-        "your-secret-key",
-        "secret",
-        "changeme",
-        "password",
-        "SECRET",
-        "Your-Secret-Key",
-    ])
+    @pytest.mark.parametrize(
+        "insecure",
+        [
+            "your-secret-key-change-in-production",
+            "your-secret-key",
+            "secret",
+            "changeme",
+            "password",
+            "SECRET",
+            "Your-Secret-Key",
+        ],
+    )
     def test_insecure_defaults_raises(self, insecure):
         with pytest.raises(ValueError, match="insecure"):
             JWTConfig(secret_key=insecure)