diff --git a/tests/unit/domain/test_audio_track_config.py b/tests/unit/domain/test_audio_track_config.py
index 831ca3908..2d356ae40 100755
--- a/tests/unit/domain/test_audio_track_config.py
+++ b/tests/unit/domain/test_audio_track_config.py
@@ -1,7 +1,6 @@
 """audio_track_config 多轨道音频配置单测."""
 
 import pytest
-
 from domain.audio_track_config import (
     ALLOWED_AUDIO_EXTENSIONS,
     DEFAULT_VOLUMES,