diff --git a/tests/unit/test_video_compose_service.py b/tests/unit/test_video_compose_service.py
index fc231ce05..7bb2a24db 100755
--- a/tests/unit/test_video_compose_service.py
+++ b/tests/unit/test_video_compose_service.py
@@ -636,12 +636,8 @@ class TestBuildXfadeFilter(TestCase):
         from app.services.video_compose_service import ClipFilterChain
 
         chains = [
-            ClipFilterChain(
-                clip_id="c1", input_index=0, video_label="v0", audio_label="a0", filters=[], duration=5.0
-            ),
-            ClipFilterChain(
-                clip_id="c2", input_index=1, video_label="v1", audio_label="a1", filters=[], duration=8.0
-            ),
+            ClipFilterChain(clip_id="c1", input_index=0, video_label="v0", audio_label="a0", filters=[], duration=5.0),
+            ClipFilterChain(clip_id="c2", input_index=1, video_label="v1", audio_label="a1", filters=[], duration=8.0),
         ]
         filter_str, _ = _build_xfade_filter(chains, transition_duration=0.5, transitions=["fade"])
         # 两个音频流都必须经过 aformat 归一化（48000Hz + stereo + fltp）
@@ -655,12 +651,8 @@ class TestBuildXfadeFilter(TestCase):
         from app.services.video_compose_service import ClipFilterChain
 
         chains = [
-            ClipFilterChain(
-                clip_id="c1", input_index=0, video_label="v0", audio_label="a0", filters=[], duration=5.0
-            ),
-            ClipFilterChain(
-                clip_id="c2", input_index=1, video_label="v1", audio_label=None, filters=[], duration=8.0
-            ),
+            ClipFilterChain(clip_id="c1", input_index=0, video_label="v0", audio_label="a0", filters=[], duration=5.0),
+            ClipFilterChain(clip_id="c2", input_index=1, video_label="v1", audio_label=None, filters=[], duration=8.0),
         ]
         filter_str, _ = _build_xfade_filter(chains, transition_duration=0.5, transitions=["fade"])
         self.assertIn("[a0]acopy[outa]", filter_str)