diff --git a/tests/unit/test_douyin_url_extract.py b/tests/unit/test_douyin_url_extract.py
index 84ed2e687..1ee9311b0 100644
--- a/tests/unit/test_douyin_url_extract.py
+++ b/tests/unit/test_douyin_url_extract.py
@@ -3,13 +3,13 @@
 from __future__ import annotations
 
 import pytest
-from fastapi import HTTPException, status
 
 # 直接 import 模块，用 _extract_url_from_text / _extract_and_validate_douyin_url 测试
 from app.api.routes.scripts_ai import (
     _extract_and_validate_douyin_url,
     _extract_url_from_text,
 )
+from fastapi import HTTPException, status
 
 
 class TestExtractUrlFromText:
diff --git a/tests/unit/test_extract_from_douyin_errors.py b/tests/unit/test_extract_from_douyin_errors.py
index 10a0ab267..f806f1e00 100644
--- a/tests/unit/test_extract_from_douyin_errors.py
+++ b/tests/unit/test_extract_from_douyin_errors.py
@@ -337,7 +337,9 @@ def test_ydl_opts_includes_cookiefile_when_file_exists(fake_user):
     ):
         scripts_ai.extract_from_douyin(request=body, current_user=fake_user, db=mock.MagicMock())
 
-    assert captured_opts_download.get("cookiefile") == "/tmp/fake_cookies.txt", f"cookiefile 应被设置，opts={captured_opts_download}"
+    assert (
+        captured_opts_download.get("cookiefile") == "/tmp/fake_cookies.txt"
+    ), f"cookiefile 应被设置，opts={captured_opts_download}"
 
 
 def test_ydl_opts_no_cookiefile_when_file_missing(fake_user):
@@ -369,7 +371,9 @@ def test_ydl_opts_no_cookiefile_when_file_missing(fake_user):
     ):
         scripts_ai.extract_from_douyin(request=body, current_user=fake_user, db=mock.MagicMock())
 
-    assert "cookiefile" not in captured_opts_download, f"cookies 文件缺失时不应设置 cookiefile，opts={captured_opts_download}"
+    assert (
+        "cookiefile" not in captured_opts_download
+    ), f"cookies 文件缺失时不应设置 cookiefile，opts={captured_opts_download}"
 
 
 def test_generic_download_error_hides_raw_message(fake_user):