diff --git a/tests/unit/test_tts_voice_clone_points.py b/tests/unit/test_tts_voice_clone_points.py
index 8e5b65c59..560003401 100644
--- a/tests/unit/test_tts_voice_clone_points.py
+++ b/tests/unit/test_tts_voice_clone_points.py
@@ -58,15 +58,14 @@ class TestEstimateMinutes:
 
 
 class TestTtsSynthesizePointsDeduction:
-    def _setup(self, text="你好", deduct_success=True, balance=0, start_synth_raises=None, send_task_raises=None):
+    def _setup(self, text="你好", deduct_success=True, balance=0,
+               start_synth_raises=None, send_task_raises=None):
         db = MagicMock()
         cu = _make_cu()
         repo = MagicMock()
         import enum
-
         class _S(enum.Enum):
             processing = "processing"
-
         job = SimpleNamespace(id="job-1", status=_S.processing, metadata={})
         uc = MagicMock()
         uc.execute.return_value = job
@@ -83,23 +82,18 @@ class TestTtsSynthesizePointsDeduction:
         return db, cu, repo, uc, wf, vc_repo, svc, fake_settings, job
 
     def test_insufficient_raises_402(self):
-        db, cu, repo, uc, wf, vc_repo, svc, fs, _ = self._setup(text="你好" * 200, deduct_success=False, balance=0)
+        db, cu, repo, uc, wf, vc_repo, svc, fs, _ = self._setup(
+            text="你好" * 200, deduct_success=False, balance=0)
         from app.api.routes.tts import synthesize
-
-        with (
-            patch("app.api.routes.tts.CreateTTSJobUseCase", return_value=uc),
-            patch("app.api.routes.tts.TTSWorkflowService", return_value=wf),
-            patch("app.api.routes.tts.PointsService", return_value=svc),
-            patch("app.api.routes.tts.settings", fs),
-        ):
+        with patch("app.api.routes.tts.CreateTTSJobUseCase", return_value=uc), \
+             patch("app.api.routes.tts.TTSWorkflowService", return_value=wf), \
+             patch("app.api.routes.tts.PointsService", return_value=svc), \
+             patch("app.api.routes.tts.settings", fs):
             with pytest.raises(HTTPException) as ei:
                 synthesize(
                     request=_make_request(text="你好" * 200),
-                    authenticated_user=cu,
-                    db=db,
-                    repository=repo,
-                    cosyvoice_service=MagicMock(),
-                    voice_clone_repo=vc_repo,
+                    authenticated_user=cu, db=db, repository=repo,
+                    cosyvoice_service=MagicMock(), voice_clone_repo=vc_repo,
                 )
             assert ei.value.status_code == 402
             assert ei.value.detail["code"] == "INSUFFICIENT_POINTS"
@@ -107,21 +101,15 @@ class TestTtsSynthesizePointsDeduction:
     def test_success_deducts_points(self):
         db, cu, repo, uc, wf, vc_repo, svc, fs, job = self._setup()
         from app.api.routes.tts import synthesize
-
-        with (
-            patch("app.api.routes.tts.CreateTTSJobUseCase", return_value=uc),
-            patch("app.api.routes.tts.TTSWorkflowService", return_value=wf),
-            patch("app.api.routes.tts.PointsService", return_value=svc),
-            patch("app.api.routes.tts.celery_app.send_task") as _st,
-            patch("app.api.routes.tts.settings", fs),
-        ):
+        with patch("app.api.routes.tts.CreateTTSJobUseCase", return_value=uc), \
+             patch("app.api.routes.tts.TTSWorkflowService", return_value=wf), \
+             patch("app.api.routes.tts.PointsService", return_value=svc), \
+             patch("app.api.routes.tts.celery_app.send_task") as _st, \
+             patch("app.api.routes.tts.settings", fs):
             resp = synthesize(
                 request=_make_request(text="测试"),
-                authenticated_user=cu,
-                db=db,
-                repository=repo,
-                cosyvoice_service=MagicMock(),
-                voice_clone_repo=vc_repo,
+                authenticated_user=cu, db=db, repository=repo,
+                cosyvoice_service=MagicMock(), voice_clone_repo=vc_repo,
             )
             svc.deduct_points.assert_called_once()
             assert resp.job_id == job.id
@@ -129,48 +117,35 @@ class TestTtsSynthesizePointsDeduction:
     def test_synthesis_failure_refunds(self):
         db, cu, repo, uc, wf, vc_repo, svc, fs, _ = self._setup(start_synth_raises=RuntimeError("boom"))
         from app.api.routes.tts import synthesize
-
-        with (
-            patch("app.api.routes.tts.CreateTTSJobUseCase", return_value=uc),
-            patch("app.api.routes.tts.TTSWorkflowService", return_value=wf),
-            patch("app.api.routes.tts.PointsService", return_value=svc),
-            patch("app.api.routes.tts.celery_app.send_task"),
-            patch("app.api.routes.tts.settings", fs),
-        ):
+        with patch("app.api.routes.tts.CreateTTSJobUseCase", return_value=uc), \
+             patch("app.api.routes.tts.TTSWorkflowService", return_value=wf), \
+             patch("app.api.routes.tts.PointsService", return_value=svc), \
+             patch("app.api.routes.tts.celery_app.send_task"), \
+             patch("app.api.routes.tts.settings", fs):
             synthesize(
                 request=_make_request(text="测试"),
-                authenticated_user=cu,
-                db=db,
-                repository=repo,
-                cosyvoice_service=MagicMock(),
-                voice_clone_repo=vc_repo,
+                authenticated_user=cu, db=db, repository=repo,
+                cosyvoice_service=MagicMock(), voice_clone_repo=vc_repo,
             )
             assert svc.refund_points.called
 
     def test_celery_send_failure_refunds(self):
         db, cu, repo, uc, wf, vc_repo, svc, fs, _ = self._setup(send_task_raises=RuntimeError("celery down"))
         from app.api.routes.tts import synthesize
-
-        with (
-            patch("app.api.routes.tts.CreateTTSJobUseCase", return_value=uc),
-            patch("app.api.routes.tts.TTSWorkflowService", return_value=wf),
-            patch("app.api.routes.tts.PointsService", return_value=svc),
-            patch("app.api.routes.tts.celery_app.send_task", side_effect=RuntimeError("celery down")),
-            patch("app.api.routes.tts.settings", fs),
-        ):
+        with patch("app.api.routes.tts.CreateTTSJobUseCase", return_value=uc), \
+             patch("app.api.routes.tts.TTSWorkflowService", return_value=wf), \
+             patch("app.api.routes.tts.PointsService", return_value=svc), \
+             patch("app.api.routes.tts.celery_app.send_task", side_effect=RuntimeError("celery down")), \
+             patch("app.api.routes.tts.settings", fs):
             synthesize(
                 request=_make_request(text="测试"),
-                authenticated_user=cu,
-                db=db,
-                repository=repo,
-                cosyvoice_service=MagicMock(),
-                voice_clone_repo=vc_repo,
+                authenticated_user=cu, db=db, repository=repo,
+                cosyvoice_service=MagicMock(), voice_clone_repo=vc_repo,
             )
             assert svc.refund_points.called
 
     def test_member_cheaper(self):
         from packages.domain.points_rules import calculate_points_cost
-
         cf = calculate_points_cost("ai_voice", is_member=False, duration_minutes=2)
         cm = calculate_points_cost("ai_voice", is_member=True, member_type="monthly", duration_minutes=2)
         assert cm < cf
@@ -197,48 +172,29 @@ class TestVoiceClonePreviewPoints:
     def test_insufficient_raises_402(self):
         db, cu, repo, uc, cosy, svc, fs = self._setup(deduct_success=False, balance=0)
         from app.api.routes.voice_clones import get_voice_clone_preview
-
-        with (
-            patch("app.api.routes.voice_clones.GetVoiceCloneUseCase", return_value=uc),
-            patch("app.api.routes.voice_clones.PointsService", return_value=svc),
-            patch("app.api.routes.voice_clones.settings", fs),
-            patch("app.api.routes.voice_clones._clone_preview_cache", {}),
-        ):
+        with patch("app.api.routes.voice_clones.GetVoiceCloneUseCase", return_value=uc), \
+             patch("app.api.routes.voice_clones.PointsService", return_value=svc), \
+             patch("app.api.routes.voice_clones.settings", fs), \
+             patch("app.api.routes.voice_clones._clone_preview_cache", {}):
             with pytest.raises(HTTPException) as ei:
                 get_voice_clone_preview(
-                    clone_id="c1",
-                    text="你好",
-                    speed=1.0,
-                    emotion="",
-                    authenticated_user=cu,
-                    db=db,
-                    repository=repo,
-                    cosyvoice=cosy,
+                    clone_id="c1", text="你好", speed=1.0, emotion="",
+                    authenticated_user=cu, db=db, repository=repo, cosyvoice=cosy,
                 )
             assert ei.value.status_code == 402
 
     def test_synth_cosyvoice_error_refunds_and_raises_502(self):
         from packages.application.cosyvoice_service import CosyVoiceError
-
         db, cu, repo, uc, cosy, svc, fs = self._setup(synth_raises=CosyVoiceError("fail"))
         from app.api.routes.voice_clones import get_voice_clone_preview
-
-        with (
-            patch("app.api.routes.voice_clones.GetVoiceCloneUseCase", return_value=uc),
-            patch("app.api.routes.voice_clones.PointsService", return_value=svc),
-            patch("app.api.routes.voice_clones.settings", fs),
-            patch("app.api.routes.voice_clones._clone_preview_cache", {}),
-        ):
+        with patch("app.api.routes.voice_clones.GetVoiceCloneUseCase", return_value=uc), \
+             patch("app.api.routes.voice_clones.PointsService", return_value=svc), \
+             patch("app.api.routes.voice_clones.settings", fs), \
+             patch("app.api.routes.voice_clones._clone_preview_cache", {}):
             with pytest.raises(HTTPException) as ei:
                 get_voice_clone_preview(
-                    clone_id="c1",
-                    text="你好",
-                    speed=1.0,
-                    emotion="",
-                    authenticated_user=cu,
-                    db=db,
-                    repository=repo,
-                    cosyvoice=cosy,
+                    clone_id="c1", text="你好", speed=1.0, emotion="",
+                    authenticated_user=cu, db=db, repository=repo, cosyvoice=cosy,
                 )
             assert ei.value.status_code == 502
             assert svc.refund_points.called
@@ -246,22 +202,13 @@ class TestVoiceClonePreviewPoints:
     def test_success_returns_audio(self):
         db, cu, repo, uc, cosy, svc, fs = self._setup()
         from app.api.routes.voice_clones import get_voice_clone_preview
-
-        with (
-            patch("app.api.routes.voice_clones.GetVoiceCloneUseCase", return_value=uc),
-            patch("app.api.routes.voice_clones.PointsService", return_value=svc),
-            patch("app.api.routes.voice_clones.settings", fs),
-            patch("app.api.routes.voice_clones._clone_preview_cache", {}),
-        ):
+        with patch("app.api.routes.voice_clones.GetVoiceCloneUseCase", return_value=uc), \
+             patch("app.api.routes.voice_clones.PointsService", return_value=svc), \
+             patch("app.api.routes.voice_clones.settings", fs), \
+             patch("app.api.routes.voice_clones._clone_preview_cache", {}):
             resp = get_voice_clone_preview(
-                clone_id="c1",
-                text="你好",
-                speed=1.0,
-                emotion="",
-                authenticated_user=cu,
-                db=db,
-                repository=repo,
-                cosyvoice=cosy,
+                clone_id="c1", text="你好", speed=1.0, emotion="",
+                authenticated_user=cu, db=db, repository=repo, cosyvoice=cosy,
             )
             svc.deduct_points.assert_called_once()
             assert resp.audio_url.startswith("http")