fix: Update linter command in CI

.gitea/workflows/test.yml

@@ -30,7 +30,7 @@ jobs:
         run: uv sync --locked --all-extras --dev
 
       - name: Run linter
-        run: uv run ruff check --exclude tests
+        run: uv run ruff check
 
   test:
     runs-on: ubuntu-latest

pyproject.toml

@@ -43,8 +43,28 @@ exclude = ["alembic"]
 select = ["ALL"]
 ignore = ["D100", "D103", "TRY301"]
 
-[tool.ruff.per-file-ignores]
-"tests/**/*.py" = ["S101", "S105"]
+[tool.ruff.lint.per-file-ignores]
+"tests/**/*.py" = [
+    "S101",    # Use of assert detected
+    "S105",    # Possible hardcoded password
+    "S106",    # Possible hardcoded password
+    "ANN001",  # Missing type annotation for function argument
+    "ANN003",  # Missing type annotation for **kwargs
+    "ANN201",  # Missing return type annotation for public function
+    "ANN202",  # Missing return type annotation for private function
+    "ANN401",  # Dynamically typed expressions (typing.Any) are disallowed
+    "ARG001",  # Unused function argument
+    "ARG002",  # Unused method argument
+    "ARG005",  # Unused lambda argument
+    "BLE001",  # Do not catch blind exception
+    "E501",    # Line too long
+    "PLR2004", # Magic value used in comparison
+    "PLC0415", # `import` should be at top-level
+    "SLF001",  # Private member accessed
+    "SIM117",  # Use a single `if` statement
+    "PT011",   # `pytest.raises()` is too broad
+    "PT012",   # `pytest.raises()` block should contain a single simple statement
+]
 
 [tool.pytest.ini_options]
 filterwarnings = [

tests/api/v1/test_api_token_endpoints.py

@@ -17,7 +17,7 @@ class TestApiTokenEndpoints:
         self,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test successful API token generation."""
         request_data = {"expires_days": 30}
 
@@ -45,7 +45,7 @@ class TestApiTokenEndpoints:
     async def test_generate_api_token_default_expiry(
         self,
         authenticated_client: AsyncClient,
-    ):
+    ) -> None:
         """Test API token generation with default expiry."""
         response = await authenticated_client.post("/api/v1/auth/api-token", json={})
 
@@ -54,9 +54,7 @@ class TestApiTokenEndpoints:
 
         expires_at_str = data["expires_at"]
         # Handle both ISO format with/without timezone info
-        if expires_at_str.endswith("Z"):
-            expires_at = datetime.fromisoformat(expires_at_str.replace("Z", "+00:00"))
-        elif "+" in expires_at_str or expires_at_str.count("-") > 2:
+        if expires_at_str.endswith("Z") or "+" in expires_at_str or expires_at_str.count("-") > 2:
             expires_at = datetime.fromisoformat(expires_at_str)
         else:
             # Naive datetime, assume UTC
@@ -71,7 +69,7 @@ class TestApiTokenEndpoints:
     async def test_generate_api_token_custom_expiry(
         self,
         authenticated_client: AsyncClient,
-    ):
+    ) -> None:
         """Test API token generation with custom expiry."""
         expires_days = 90
         request_data = {"expires_days": expires_days}
@@ -86,9 +84,7 @@ class TestApiTokenEndpoints:
 
         expires_at_str = data["expires_at"]
         # Handle both ISO format with/without timezone info
-        if expires_at_str.endswith("Z"):
-            expires_at = datetime.fromisoformat(expires_at_str.replace("Z", "+00:00"))
-        elif "+" in expires_at_str or expires_at_str.count("-") > 2:
+        if expires_at_str.endswith("Z") or "+" in expires_at_str or expires_at_str.count("-") > 2:
             expires_at = datetime.fromisoformat(expires_at_str)
         else:
             # Naive datetime, assume UTC
@@ -103,7 +99,7 @@ class TestApiTokenEndpoints:
     async def test_generate_api_token_validation_errors(
         self,
         authenticated_client: AsyncClient,
-    ):
+    ) -> None:
         """Test API token generation with validation errors."""
         # Test minimum validation
         response = await authenticated_client.post(
@@ -120,7 +116,7 @@ class TestApiTokenEndpoints:
         assert response.status_code == 422
 
     @pytest.mark.asyncio
-    async def test_generate_api_token_unauthenticated(self, client: AsyncClient):
+    async def test_generate_api_token_unauthenticated(self, client: AsyncClient) -> None:
         """Test API token generation without authentication."""
         response = await client.post(
             "/api/v1/auth/api-token",
@@ -132,7 +128,7 @@ class TestApiTokenEndpoints:
     async def test_get_api_token_status_no_token(
         self,
         authenticated_client: AsyncClient,
-    ):
+    ) -> None:
         """Test getting API token status when user has no token."""
         response = await authenticated_client.get("/api/v1/auth/api-token/status")
 
@@ -147,7 +143,7 @@ class TestApiTokenEndpoints:
     async def test_get_api_token_status_with_token(
         self,
         authenticated_client: AsyncClient,
-    ):
+    ) -> None:
         """Test getting API token status when user has a token."""
         # First generate a token
         await authenticated_client.post(
@@ -170,7 +166,7 @@ class TestApiTokenEndpoints:
         self,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test getting API token status with expired token."""
         # Mock expired token
         with patch("app.utils.auth.TokenUtils.is_token_expired", return_value=True):
@@ -190,7 +186,7 @@ class TestApiTokenEndpoints:
             assert data["is_expired"] is True
 
     @pytest.mark.asyncio
-    async def test_get_api_token_status_unauthenticated(self, client: AsyncClient):
+    async def test_get_api_token_status_unauthenticated(self, client: AsyncClient) -> None:
         """Test getting API token status without authentication."""
         response = await client.get("/api/v1/auth/api-token/status")
         assert response.status_code == 401
@@ -199,7 +195,7 @@ class TestApiTokenEndpoints:
     async def test_revoke_api_token_success(
         self,
         authenticated_client: AsyncClient,
-    ):
+    ) -> None:
         """Test successful API token revocation."""
         # First generate a token
         await authenticated_client.post(
@@ -230,7 +226,7 @@ class TestApiTokenEndpoints:
     async def test_revoke_api_token_no_token(
         self,
         authenticated_client: AsyncClient,
-    ):
+    ) -> None:
         """Test revoking API token when user has no token."""
         response = await authenticated_client.delete("/api/v1/auth/api-token")
 
@@ -239,7 +235,7 @@ class TestApiTokenEndpoints:
         assert data["message"] == "API token revoked successfully"
 
     @pytest.mark.asyncio
-    async def test_revoke_api_token_unauthenticated(self, client: AsyncClient):
+    async def test_revoke_api_token_unauthenticated(self, client: AsyncClient) -> None:
         """Test revoking API token without authentication."""
         response = await client.delete("/api/v1/auth/api-token")
         assert response.status_code == 401
@@ -249,7 +245,7 @@ class TestApiTokenEndpoints:
         self,
         client: AsyncClient,
         authenticated_client: AsyncClient,
-    ):
+    ) -> None:
         """Test successful authentication using API token."""
         # Generate API token
         token_response = await authenticated_client.post(
@@ -268,7 +264,7 @@ class TestApiTokenEndpoints:
         assert "email" in data
 
     @pytest.mark.asyncio
-    async def test_api_token_authentication_invalid_token(self, client: AsyncClient):
+    async def test_api_token_authentication_invalid_token(self, client: AsyncClient) -> None:
         """Test authentication with invalid API token."""
         headers = {"API-TOKEN": "invalid_token"}
         response = await client.get("/api/v1/auth/me", headers=headers)
@@ -282,7 +278,7 @@ class TestApiTokenEndpoints:
         self,
         client: AsyncClient,
         authenticated_client: AsyncClient,
-    ):
+    ) -> None:
         """Test authentication with expired API token."""
         # Generate API token
         token_response = await authenticated_client.post(
@@ -301,7 +297,7 @@ class TestApiTokenEndpoints:
             assert "API token has expired" in data["detail"]
 
     @pytest.mark.asyncio
-    async def test_api_token_authentication_empty_token(self, client: AsyncClient):
+    async def test_api_token_authentication_empty_token(self, client: AsyncClient) -> None:
         """Test authentication with empty API-TOKEN header."""
         # Empty token
         headers = {"API-TOKEN": ""}
@@ -325,7 +321,7 @@ class TestApiTokenEndpoints:
         client: AsyncClient,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test authentication with API token for inactive user."""
         # Generate API token
         token_response = await authenticated_client.post(
@@ -351,7 +347,7 @@ class TestApiTokenEndpoints:
         client: AsyncClient,
         authenticated_client: AsyncClient,
         auth_cookies: dict[str, str],
-    ):
+    ) -> None:
         """Test that flexible authentication prefers API token over cookie."""
         # Generate API token
         token_response = await authenticated_client.post(

tests/api/v1/test_extraction_endpoints.py

@@ -11,7 +11,7 @@ class TestExtractionEndpoints:
     @pytest.mark.asyncio
     async def test_create_extraction_success(
         self, test_client: AsyncClient, auth_cookies: dict[str, str],
-    ):
+    ) -> None:
         """Test successful extraction creation."""
         # Set cookies on client instance to avoid deprecation warning
         test_client.cookies.update(auth_cookies)
@@ -26,7 +26,7 @@ class TestExtractionEndpoints:
         assert response.status_code in [200, 400, 500]  # Allow any non-auth error
 
     @pytest.mark.asyncio
-    async def test_create_extraction_unauthenticated(self, test_client: AsyncClient):
+    async def test_create_extraction_unauthenticated(self, test_client: AsyncClient) -> None:
         """Test extraction creation without authentication."""
         response = await test_client.post(
             "/api/v1/sounds/extract",
@@ -37,7 +37,7 @@ class TestExtractionEndpoints:
         assert response.status_code == 401
 
     @pytest.mark.asyncio
-    async def test_get_extraction_unauthenticated(self, test_client: AsyncClient):
+    async def test_get_extraction_unauthenticated(self, test_client: AsyncClient) -> None:
         """Test extraction retrieval without authentication."""
         response = await test_client.get("/api/v1/sounds/extract/1")
 
@@ -47,7 +47,7 @@ class TestExtractionEndpoints:
     @pytest.mark.asyncio
     async def test_get_processor_status_admin(
         self, test_client: AsyncClient, admin_cookies: dict[str, str],
-    ):
+    ) -> None:
         """Test getting processor status as admin."""
         # Set cookies on client instance to avoid deprecation warning
         test_client.cookies.update(admin_cookies)
@@ -63,7 +63,7 @@ class TestExtractionEndpoints:
     @pytest.mark.asyncio
     async def test_get_processor_status_non_admin(
         self, test_client: AsyncClient, auth_cookies: dict[str, str],
-    ):
+    ) -> None:
         """Test getting processor status as non-admin user."""
         # Set cookies on client instance to avoid deprecation warning
         test_client.cookies.update(auth_cookies)
@@ -77,7 +77,7 @@ class TestExtractionEndpoints:
     @pytest.mark.asyncio
     async def test_get_user_extractions(
         self, test_client: AsyncClient, auth_cookies: dict[str, str],
-    ):
+    ) -> None:
         """Test getting user extractions."""
         # Set cookies on client instance to avoid deprecation warning
         test_client.cookies.update(auth_cookies)

tests/api/v1/test_player_endpoints.py

@@ -37,7 +37,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test starting playback successfully."""
         response = await authenticated_client.post("/api/v1/player/play")
 
@@ -48,7 +48,7 @@ class TestPlayerEndpoints:
         mock_player_service.play.assert_called_once_with()
 
     @pytest.mark.asyncio
-    async def test_play_unauthenticated(self, client: AsyncClient):
+    async def test_play_unauthenticated(self, client: AsyncClient) -> None:
         """Test starting playback without authentication."""
         response = await client.post("/api/v1/player/play")
         assert response.status_code == 401
@@ -59,7 +59,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test starting playback with service error."""
         mock_player_service.play.side_effect = Exception("Service error")
 
@@ -75,7 +75,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test playing sound at specific index successfully."""
         index = 2
         response = await authenticated_client.post(f"/api/v1/player/play/{index}")
@@ -92,7 +92,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test playing sound with invalid index."""
         mock_player_service.play.side_effect = ValueError("Invalid sound index")
 
@@ -108,7 +108,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test playing sound at index with service error."""
         mock_player_service.play.side_effect = Exception("Service error")
 
@@ -124,7 +124,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test pausing playback successfully."""
         response = await authenticated_client.post("/api/v1/player/pause")
 
@@ -135,7 +135,7 @@ class TestPlayerEndpoints:
         mock_player_service.pause.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_pause_unauthenticated(self, client: AsyncClient):
+    async def test_pause_unauthenticated(self, client: AsyncClient) -> None:
         """Test pausing playback without authentication."""
         response = await client.post("/api/v1/player/pause")
         assert response.status_code == 401
@@ -146,7 +146,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test pausing playback with service error."""
         mock_player_service.pause.side_effect = Exception("Service error")
 
@@ -162,7 +162,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test stopping playback successfully."""
         response = await authenticated_client.post("/api/v1/player/stop")
 
@@ -173,7 +173,7 @@ class TestPlayerEndpoints:
         mock_player_service.stop_playback.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_stop_unauthenticated(self, client: AsyncClient):
+    async def test_stop_unauthenticated(self, client: AsyncClient) -> None:
         """Test stopping playback without authentication."""
         response = await client.post("/api/v1/player/stop")
         assert response.status_code == 401
@@ -184,7 +184,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test stopping playback with service error."""
         mock_player_service.stop_playback.side_effect = Exception("Service error")
 
@@ -200,7 +200,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test skipping to next track successfully."""
         response = await authenticated_client.post("/api/v1/player/next")
 
@@ -211,7 +211,7 @@ class TestPlayerEndpoints:
         mock_player_service.next.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_next_track_unauthenticated(self, client: AsyncClient):
+    async def test_next_track_unauthenticated(self, client: AsyncClient) -> None:
         """Test skipping to next track without authentication."""
         response = await client.post("/api/v1/player/next")
         assert response.status_code == 401
@@ -222,7 +222,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test skipping to next track with service error."""
         mock_player_service.next.side_effect = Exception("Service error")
 
@@ -238,7 +238,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test going to previous track successfully."""
         response = await authenticated_client.post("/api/v1/player/previous")
 
@@ -249,7 +249,7 @@ class TestPlayerEndpoints:
         mock_player_service.previous.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_previous_track_unauthenticated(self, client: AsyncClient):
+    async def test_previous_track_unauthenticated(self, client: AsyncClient) -> None:
         """Test going to previous track without authentication."""
         response = await client.post("/api/v1/player/previous")
         assert response.status_code == 401
@@ -260,7 +260,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test going to previous track with service error."""
         mock_player_service.previous.side_effect = Exception("Service error")
 
@@ -276,7 +276,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test seeking to position successfully."""
         position = 5000
         response = await authenticated_client.post(
@@ -296,7 +296,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test seeking with invalid position."""
         response = await authenticated_client.post(
             "/api/v1/player/seek",
@@ -306,7 +306,7 @@ class TestPlayerEndpoints:
         assert response.status_code == 422  # Validation error
 
     @pytest.mark.asyncio
-    async def test_seek_unauthenticated(self, client: AsyncClient):
+    async def test_seek_unauthenticated(self, client: AsyncClient) -> None:
         """Test seeking without authentication."""
         response = await client.post(
             "/api/v1/player/seek",
@@ -320,7 +320,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test seeking with service error."""
         mock_player_service.seek.side_effect = Exception("Service error")
 
@@ -339,7 +339,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test setting volume successfully."""
         volume = 75
         response = await authenticated_client.post(
@@ -359,7 +359,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test setting volume with invalid range."""
         # Test volume too high
         response = await authenticated_client.post(
@@ -376,7 +376,7 @@ class TestPlayerEndpoints:
         assert response.status_code == 422
 
     @pytest.mark.asyncio
-    async def test_set_volume_unauthenticated(self, client: AsyncClient):
+    async def test_set_volume_unauthenticated(self, client: AsyncClient) -> None:
         """Test setting volume without authentication."""
         response = await client.post(
             "/api/v1/player/volume",
@@ -390,7 +390,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test setting volume with service error."""
         mock_player_service.set_volume.side_effect = Exception("Service error")
 
@@ -409,7 +409,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test setting playback mode successfully."""
         mode = PlayerMode.LOOP
         response = await authenticated_client.post(
@@ -429,7 +429,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test setting invalid playback mode."""
         response = await authenticated_client.post(
             "/api/v1/player/mode",
@@ -439,7 +439,7 @@ class TestPlayerEndpoints:
         assert response.status_code == 422  # Validation error
 
     @pytest.mark.asyncio
-    async def test_set_mode_unauthenticated(self, client: AsyncClient):
+    async def test_set_mode_unauthenticated(self, client: AsyncClient) -> None:
         """Test setting mode without authentication."""
         response = await client.post(
             "/api/v1/player/mode",
@@ -453,7 +453,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test setting mode with service error."""
         mock_player_service.set_mode.side_effect = Exception("Service error")
 
@@ -472,7 +472,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test reloading playlist successfully."""
         response = await authenticated_client.post("/api/v1/player/reload-playlist")
 
@@ -483,7 +483,7 @@ class TestPlayerEndpoints:
         mock_player_service.reload_playlist.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_reload_playlist_unauthenticated(self, client: AsyncClient):
+    async def test_reload_playlist_unauthenticated(self, client: AsyncClient) -> None:
         """Test reloading playlist without authentication."""
         response = await client.post("/api/v1/player/reload-playlist")
         assert response.status_code == 401
@@ -494,7 +494,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test reloading playlist with service error."""
         mock_player_service.reload_playlist.side_effect = Exception("Service error")
 
@@ -510,7 +510,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test getting player state successfully."""
         mock_state = {
             "status": PlayerStatus.PLAYING.value,
@@ -548,7 +548,7 @@ class TestPlayerEndpoints:
         mock_player_service.get_state.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_get_state_unauthenticated(self, client: AsyncClient):
+    async def test_get_state_unauthenticated(self, client: AsyncClient) -> None:
         """Test getting player state without authentication."""
         response = await client.get("/api/v1/player/state")
         assert response.status_code == 401
@@ -559,7 +559,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test getting player state with service error."""
         mock_player_service.get_state.side_effect = Exception("Service error")
 
@@ -574,7 +574,7 @@ class TestPlayerEndpoints:
         self,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test seeking without request body."""
         response = await authenticated_client.post("/api/v1/player/seek")
         assert response.status_code == 422
@@ -584,7 +584,7 @@ class TestPlayerEndpoints:
         self,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test setting volume without request body."""
         response = await authenticated_client.post("/api/v1/player/volume")
         assert response.status_code == 422
@@ -594,7 +594,7 @@ class TestPlayerEndpoints:
         self,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test setting mode without request body."""
         response = await authenticated_client.post("/api/v1/player/mode")
         assert response.status_code == 422
@@ -605,7 +605,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test playing sound with negative index."""
         mock_player_service.play.side_effect = ValueError("Invalid sound index")
 
@@ -621,7 +621,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test seeking to position zero."""
         response = await authenticated_client.post(
             "/api/v1/player/seek",
@@ -640,7 +640,7 @@ class TestPlayerEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_player_service,
-    ):
+    ) -> None:
         """Test setting volume with boundary values."""
         # Test minimum volume
         response = await authenticated_client.post(

tests/api/v1/test_socket_endpoints.py

@@ -27,7 +27,7 @@ class TestSocketEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_socket_manager,
-    ):
+    ) -> None:
         """Test getting socket status for authenticated user."""
         response = await authenticated_client.get("/api/v1/socket/status")
 
@@ -42,7 +42,7 @@ class TestSocketEndpoints:
         assert isinstance(data["connected"], bool)
 
     @pytest.mark.asyncio
-    async def test_get_socket_status_unauthenticated(self, client: AsyncClient):
+    async def test_get_socket_status_unauthenticated(self, client: AsyncClient) -> None:
         """Test getting socket status without authentication."""
         response = await client.get("/api/v1/socket/status")
         assert response.status_code == 401
@@ -53,7 +53,7 @@ class TestSocketEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_socket_manager,
-    ):
+    ) -> None:
         """Test sending message to specific user successfully."""
         target_user_id = 2
         message = "Hello there!"
@@ -87,7 +87,7 @@ class TestSocketEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_socket_manager,
-    ):
+    ) -> None:
         """Test sending message to user who is not connected."""
         target_user_id = 999
         message = "Hello there!"
@@ -108,7 +108,7 @@ class TestSocketEndpoints:
         assert data["message"] == "User not connected"
 
     @pytest.mark.asyncio
-    async def test_send_message_unauthenticated(self, client: AsyncClient):
+    async def test_send_message_unauthenticated(self, client: AsyncClient) -> None:
         """Test sending message without authentication."""
         response = await client.post(
             "/api/v1/socket/send-message",
@@ -122,7 +122,7 @@ class TestSocketEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_socket_manager,
-    ):
+    ) -> None:
         """Test broadcasting message to all users successfully."""
         message = "Important announcement!"
 
@@ -148,7 +148,7 @@ class TestSocketEndpoints:
         )
 
     @pytest.mark.asyncio
-    async def test_broadcast_message_unauthenticated(self, client: AsyncClient):
+    async def test_broadcast_message_unauthenticated(self, client: AsyncClient) -> None:
         """Test broadcasting message without authentication."""
         response = await client.post(
             "/api/v1/socket/broadcast",
@@ -159,7 +159,7 @@ class TestSocketEndpoints:
     @pytest.mark.asyncio
     async def test_send_message_missing_parameters(
         self, authenticated_client: AsyncClient, authenticated_user: User,
-    ):
+    ) -> None:
         """Test sending message with missing parameters."""
         # Missing target_user_id
         response = await authenticated_client.post(
@@ -178,7 +178,7 @@ class TestSocketEndpoints:
     @pytest.mark.asyncio
     async def test_broadcast_message_missing_parameters(
         self, authenticated_client: AsyncClient, authenticated_user: User,
-    ):
+    ) -> None:
         """Test broadcasting message with missing parameters."""
         response = await authenticated_client.post("/api/v1/socket/broadcast")
         assert response.status_code == 422
@@ -186,7 +186,7 @@ class TestSocketEndpoints:
     @pytest.mark.asyncio
     async def test_send_message_invalid_user_id(
         self, authenticated_client: AsyncClient, authenticated_user: User,
-    ):
+    ) -> None:
         """Test sending message with invalid user ID."""
         response = await authenticated_client.post(
             "/api/v1/socket/send-message",
@@ -200,7 +200,7 @@ class TestSocketEndpoints:
         authenticated_client: AsyncClient,
         authenticated_user: User,
         mock_socket_manager,
-    ):
+    ) -> None:
         """Test that socket status correctly shows if user is connected."""
         # Test when user is connected
         mock_socket_manager.get_connected_users.return_value = [

tests/api/v1/test_sound_endpoints.py

@@ -1,11 +1,14 @@
 """Tests for sound API endpoints."""
 
+from typing import TYPE_CHECKING
 from unittest.mock import patch
 
 import pytest
 from httpx import ASGITransport, AsyncClient
 
 from app.models.user import User
+
+if TYPE_CHECKING:
     from app.services.sound_normalizer import NormalizationResults
     from app.services.sound_scanner import ScanResults
 
@@ -18,7 +21,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test successful sound scanning."""
         # Mock the scanner service to return successful results
         mock_results: ScanResults = {
@@ -95,7 +98,7 @@ class TestSoundEndpoints:
             assert results["files"][2]["status"] == "deleted"
 
     @pytest.mark.asyncio
-    async def test_scan_sounds_unauthenticated(self, client: AsyncClient):
+    async def test_scan_sounds_unauthenticated(self, client: AsyncClient) -> None:
         """Test scanning sounds without authentication."""
         response = await client.post("/api/v1/sounds/scan")
 
@@ -108,7 +111,7 @@ class TestSoundEndpoints:
         self,
         test_app,
         test_user: User,
-    ):
+    ) -> None:
         """Test scanning sounds with non-admin user."""
         from app.core.dependencies import get_current_active_user_flexible
 
@@ -142,7 +145,7 @@ class TestSoundEndpoints:
         self,
         test_app,
         admin_user: User,
-    ):
+    ) -> None:
         """Test scanning sounds with admin user."""
         from app.core.dependencies import get_current_active_user_flexible
 
@@ -189,7 +192,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test scanning sounds when service raises an error."""
         with patch(
             "app.services.sound_scanner.SoundScannerService.scan_soundboard_directory",
@@ -208,7 +211,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test successful custom directory scanning."""
         mock_results: ScanResults = {
             "scanned": 2,
@@ -272,7 +275,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test custom directory scanning with default sound type."""
         mock_results: ScanResults = {
             "scanned": 1,
@@ -304,7 +307,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test custom directory scanning with invalid path."""
         with patch(
             "app.services.sound_scanner.SoundScannerService.scan_directory",
@@ -322,7 +325,7 @@ class TestSoundEndpoints:
             assert "Directory does not exist" in data["detail"]
 
     @pytest.mark.asyncio
-    async def test_scan_custom_directory_unauthenticated(self, client: AsyncClient):
+    async def test_scan_custom_directory_unauthenticated(self, client: AsyncClient) -> None:
         """Test custom directory scanning without authentication."""
         response = await client.post(
             "/api/v1/sounds/scan/custom", params={"directory": "/some/path"},
@@ -337,7 +340,7 @@ class TestSoundEndpoints:
         self,
         test_app,
         test_user: User,
-    ):
+    ) -> None:
         """Test custom directory scanning with non-admin user."""
         from app.core.dependencies import get_current_active_user_flexible
 
@@ -374,7 +377,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test custom directory scanning when service raises an error."""
         with patch(
             "app.services.sound_scanner.SoundScannerService.scan_directory",
@@ -395,7 +398,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test scanning with some errors in results."""
         mock_results: ScanResults = {
             "scanned": 3,
@@ -467,7 +470,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test that endpoint response has correct structure."""
         mock_results: ScanResults = {
             "scanned": 0,
@@ -519,7 +522,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test successful normalization of all sounds."""
         mock_results: NormalizationResults = {
             "processed": 3,
@@ -597,7 +600,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test normalization with force parameter."""
         mock_results: NormalizationResults = {
             "processed": 1,
@@ -626,7 +629,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test normalization with one_pass parameter."""
         mock_results: NormalizationResults = {
             "processed": 1,
@@ -651,7 +654,7 @@ class TestSoundEndpoints:
             mock_normalize.assert_called_once_with(force=False, one_pass=True)
 
     @pytest.mark.asyncio
-    async def test_normalize_all_sounds_unauthenticated(self, client: AsyncClient):
+    async def test_normalize_all_sounds_unauthenticated(self, client: AsyncClient) -> None:
         """Test normalizing sounds without authentication."""
         response = await client.post("/api/v1/sounds/normalize/all")
 
@@ -664,7 +667,7 @@ class TestSoundEndpoints:
         self,
         test_app,
         test_user: User,
-    ):
+    ) -> None:
         """Test normalizing sounds with non-admin user."""
         from app.core.dependencies import get_current_active_user_flexible
 
@@ -699,7 +702,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test normalization when service raises an error."""
         with patch(
             "app.services.sound_normalizer.SoundNormalizerService.normalize_all_sounds",
@@ -720,7 +723,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test successful normalization by sound type."""
         mock_results: NormalizationResults = {
             "processed": 2,
@@ -787,7 +790,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test normalization with invalid sound type."""
         response = await authenticated_admin_client.post(
             "/api/v1/sounds/normalize/type/INVALID",
@@ -803,7 +806,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test normalization by type with force and one_pass parameters."""
         mock_results: NormalizationResults = {
             "processed": 1,
@@ -835,7 +838,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test successful normalization of a specific sound."""
         # Mock the sound
         mock_sound = type(
@@ -894,7 +897,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test normalization of non-existent sound."""
         with patch(
             "app.repositories.sound.SoundRepository.get_by_id",
@@ -914,7 +917,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test normalization when the sound normalization fails."""
         # Mock the sound
         mock_sound = type(
@@ -966,7 +969,7 @@ class TestSoundEndpoints:
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test sound normalization with force and one_pass parameters."""
         # Mock the sound
         mock_sound = type(
@@ -1013,15 +1016,15 @@ class TestSoundEndpoints:
 
             # Verify parameters were passed to normalize_sound
             call_args = mock_normalize_sound.call_args
-            assert call_args[1]["force"] == True
-            assert call_args[1]["one_pass"] == True
+            assert call_args[1]["force"]
+            assert call_args[1]["one_pass"]
 
     @pytest.mark.asyncio
     async def test_normalize_sound_by_id_skipped(
         self,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test normalization when sound is already normalized and not forced."""
         # Mock the sound
         mock_sound = type(
@@ -1071,7 +1074,7 @@ class TestSoundEndpoints:
             assert data["reason"] == "already normalized"
 
     @pytest.mark.asyncio
-    async def test_normalize_sound_by_id_unauthenticated(self, client: AsyncClient):
+    async def test_normalize_sound_by_id_unauthenticated(self, client: AsyncClient) -> None:
         """Test normalizing a specific sound without authentication."""
         response = await client.post("/api/v1/sounds/normalize/42")
 
@@ -1084,7 +1087,7 @@ class TestSoundEndpoints:
         self,
         test_app,
         test_user: User,
-    ):
+    ) -> None:
         """Test normalizing a specific sound with non-admin user."""
         from app.core.dependencies import get_current_active_user_flexible
 

tests/api/v1/test_vlc_endpoints.py

@@ -20,7 +20,7 @@ class TestVLCEndpoints:
         test_app: FastAPI,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test successful sound playback via VLC."""
         # Set up mocks
         mock_vlc_service = AsyncMock()
@@ -73,7 +73,7 @@ class TestVLCEndpoints:
         test_app: FastAPI,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test VLC playback when sound is not found."""
         # Set up mocks
         mock_vlc_service = AsyncMock()
@@ -106,7 +106,7 @@ class TestVLCEndpoints:
         test_app: FastAPI,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test VLC playback when VLC launch fails."""
         # Set up mocks
         mock_vlc_service = AsyncMock()
@@ -153,7 +153,7 @@ class TestVLCEndpoints:
         test_app: FastAPI,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test VLC playback when service raises an exception."""
         # Set up mocks
         mock_vlc_service = AsyncMock()
@@ -184,7 +184,7 @@ class TestVLCEndpoints:
     async def test_play_sound_with_vlc_unauthenticated(
         self,
         client: AsyncClient,
-    ):
+    ) -> None:
         """Test VLC playback without authentication."""
         response = await client.post("/api/v1/sounds/vlc/play/1")
         assert response.status_code == 401
@@ -195,7 +195,7 @@ class TestVLCEndpoints:
         test_app: FastAPI,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test successful stopping of all VLC instances."""
         # Set up mock
         mock_vlc_service = AsyncMock()
@@ -234,7 +234,7 @@ class TestVLCEndpoints:
         test_app: FastAPI,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test stopping VLC instances when none are running."""
         # Set up mock
         mock_vlc_service = AsyncMock()
@@ -268,7 +268,7 @@ class TestVLCEndpoints:
         test_app: FastAPI,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test stopping VLC instances with partial success."""
         # Set up mock
         mock_vlc_service = AsyncMock()
@@ -303,7 +303,7 @@ class TestVLCEndpoints:
         test_app: FastAPI,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test stopping VLC instances when service fails."""
         # Set up mock
         mock_vlc_service = AsyncMock()
@@ -337,7 +337,7 @@ class TestVLCEndpoints:
         test_app: FastAPI,
         authenticated_client: AsyncClient,
         authenticated_user: User,
-    ):
+    ) -> None:
         """Test stopping VLC instances when service raises an exception."""
         # Set up mock to raise an exception
         mock_vlc_service = AsyncMock()
@@ -360,7 +360,7 @@ class TestVLCEndpoints:
     async def test_stop_all_vlc_instances_unauthenticated(
         self,
         client: AsyncClient,
-    ):
+    ) -> None:
         """Test stopping VLC instances without authentication."""
         response = await client.post("/api/v1/sounds/vlc/stop-all")
         assert response.status_code == 401
@@ -371,7 +371,7 @@ class TestVLCEndpoints:
         test_app: FastAPI,
         authenticated_admin_client: AsyncClient,
         admin_user: User,
-    ):
+    ) -> None:
         """Test VLC endpoints work with admin user."""
         # Set up mocks
         mock_vlc_service = AsyncMock()

tests/conftest.py

@@ -7,12 +7,15 @@ from typing import Any
 import pytest
 import pytest_asyncio
 from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
 from httpx import ASGITransport, AsyncClient
 from sqlalchemy.ext.asyncio import create_async_engine
 from sqlmodel import SQLModel, select
 from sqlmodel.ext.asyncio.session import AsyncSession
 
+from app.api import api_router
 from app.core.database import get_db
+from app.middleware.logging import LoggingMiddleware
 from app.models.plan import Plan
 from app.models.user import User
 from app.utils.auth import JWTUtils, PasswordUtils
@@ -61,14 +64,8 @@ async def test_session(test_engine: Any) -> AsyncGenerator[AsyncSession, None]:
 
 
 @pytest_asyncio.fixture
-async def test_app(test_session: AsyncSession):
+async def test_app(test_session: AsyncSession) -> FastAPI:
     """Create a test FastAPI application."""
-    from fastapi import FastAPI
-    from fastapi.middleware.cors import CORSMiddleware
-
-    from app.api import api_router
-    from app.middleware.logging import LoggingMiddleware
-
     # Create FastAPI app directly for testing (without Socket.IO)
     app = FastAPI()
 

tests/core/test_api_token_dependencies.py

@@ -1,5 +1,4 @@
 """Tests for API token authentication dependencies."""
-# ruff: noqa: S106
 
 from datetime import UTC, datetime, timedelta
 from unittest.mock import AsyncMock

tests/repositories/test_credit_transaction.py

@@ -1,5 +1,4 @@
 """Tests for credit transaction repository."""
-# ruff: noqa: ARG002, E501
 
 import json
 from collections.abc import AsyncGenerator

tests/repositories/test_extraction.py

@@ -1,5 +1,4 @@
 """Tests for extraction repository."""
-# ruff: noqa: ANN001, ANN201
 
 from unittest.mock import AsyncMock, Mock
 

tests/repositories/test_playlist.py

@@ -1,5 +1,4 @@
 """Tests for playlist repository."""
-# ruff: noqa: PLR2004, ANN401
 
 from collections.abc import AsyncGenerator
 from typing import Any

tests/repositories/test_sound.py

@@ -1,5 +1,4 @@
 """Tests for sound repository."""
-# ruff: noqa: ARG002, PLR2004
 
 from collections.abc import AsyncGenerator
 

tests/repositories/test_user.py

@@ -1,5 +1,4 @@
 """Tests for user repository."""
-# ruff: noqa: ARG002
 
 from collections.abc import AsyncGenerator
 

tests/repositories/test_user_oauth.py

@@ -1,5 +1,4 @@
 """Tests for user OAuth repository."""
-# ruff: noqa: ARG002
 
 from collections.abc import AsyncGenerator
 

tests/services/test_auth_service.py

@@ -10,6 +10,11 @@ from app.models.user import User
 from app.schemas.auth import UserLoginRequest, UserRegisterRequest
 from app.services.auth import AuthService
 
+# Constants
+HTTP_400_BAD_REQUEST = 400
+HTTP_401_UNAUTHORIZED = 401
+HTTP_404_NOT_FOUND = 404
+
 
 class TestAuthService:
     """Test authentication service operations."""
@@ -62,7 +67,7 @@ class TestAuthService:
         with pytest.raises(HTTPException) as exc_info:
             await auth_service.register(request)
 
-        assert exc_info.value.status_code == 400
+        assert exc_info.value.status_code == HTTP_400_BAD_REQUEST
         assert "Email address is already registered" in exc_info.value.detail
 
     @pytest.mark.asyncio
@@ -100,7 +105,7 @@ class TestAuthService:
         with pytest.raises(HTTPException) as exc_info:
             await auth_service.login(request)
 
-        assert exc_info.value.status_code == 401
+        assert exc_info.value.status_code == HTTP_401_UNAUTHORIZED
         assert "Invalid email or password" in exc_info.value.detail
 
     @pytest.mark.asyncio
@@ -115,7 +120,7 @@ class TestAuthService:
         with pytest.raises(HTTPException) as exc_info:
             await auth_service.login(request)
 
-        assert exc_info.value.status_code == 401
+        assert exc_info.value.status_code == HTTP_401_UNAUTHORIZED
         assert "Invalid email or password" in exc_info.value.detail
 
     @pytest.mark.asyncio
@@ -138,7 +143,7 @@ class TestAuthService:
         with pytest.raises(HTTPException) as exc_info:
             await auth_service.login(request)
 
-        assert exc_info.value.status_code == 401
+        assert exc_info.value.status_code == HTTP_401_UNAUTHORIZED
         assert "Account is deactivated" in exc_info.value.detail
 
     @pytest.mark.asyncio
@@ -161,7 +166,7 @@ class TestAuthService:
         with pytest.raises(HTTPException) as exc_info:
             await auth_service.login(request)
 
-        assert exc_info.value.status_code == 401
+        assert exc_info.value.status_code == HTTP_401_UNAUTHORIZED
         assert "Invalid email or password" in exc_info.value.detail
 
     @pytest.mark.asyncio
@@ -184,7 +189,7 @@ class TestAuthService:
         with pytest.raises(HTTPException) as exc_info:
             await auth_service.get_current_user(99999)
 
-        assert exc_info.value.status_code == 404
+        assert exc_info.value.status_code == HTTP_404_NOT_FOUND
         assert "User not found" in exc_info.value.detail
 
     @pytest.mark.asyncio
@@ -205,7 +210,7 @@ class TestAuthService:
         with pytest.raises(HTTPException) as exc_info:
             await auth_service.get_current_user(user_id)
 
-        assert exc_info.value.status_code == 401
+        assert exc_info.value.status_code == HTTP_401_UNAUTHORIZED
         assert "Account is deactivated" in exc_info.value.detail
 
     @pytest.mark.asyncio

tests/services/test_credit.py

@@ -39,7 +39,7 @@ class TestCreditService:
         )
 
     @pytest.mark.asyncio
-    async def test_check_credits_sufficient(self, credit_service, sample_user):
+    async def test_check_credits_sufficient(self, credit_service, sample_user) -> None:
         """Test checking credits when user has sufficient credits."""
         mock_session = credit_service.db_session_factory()
 
@@ -55,7 +55,7 @@ class TestCreditService:
             mock_session.close.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_check_credits_insufficient(self, credit_service):
+    async def test_check_credits_insufficient(self, credit_service) -> None:
         """Test checking credits when user has insufficient credits."""
         mock_session = credit_service.db_session_factory()
         poor_user = User(
@@ -78,7 +78,7 @@ class TestCreditService:
             mock_session.close.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_check_credits_user_not_found(self, credit_service):
+    async def test_check_credits_user_not_found(self, credit_service) -> None:
         """Test checking credits when user is not found."""
         mock_session = credit_service.db_session_factory()
 
@@ -93,7 +93,7 @@ class TestCreditService:
             mock_session.close.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_validate_and_reserve_credits_success(self, credit_service, sample_user):
+    async def test_validate_and_reserve_credits_success(self, credit_service, sample_user) -> None:
         """Test successful credit validation and reservation."""
         mock_session = credit_service.db_session_factory()
 
@@ -112,7 +112,7 @@ class TestCreditService:
             mock_session.close.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_validate_and_reserve_credits_insufficient(self, credit_service):
+    async def test_validate_and_reserve_credits_insufficient(self, credit_service) -> None:
         """Test credit validation with insufficient credits."""
         mock_session = credit_service.db_session_factory()
         poor_user = User(
@@ -139,7 +139,7 @@ class TestCreditService:
             mock_session.close.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_validate_and_reserve_credits_user_not_found(self, credit_service):
+    async def test_validate_and_reserve_credits_user_not_found(self, credit_service) -> None:
         """Test credit validation when user is not found."""
         mock_session = credit_service.db_session_factory()
 
@@ -156,7 +156,7 @@ class TestCreditService:
             mock_session.close.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_deduct_credits_success(self, credit_service, sample_user):
+    async def test_deduct_credits_success(self, credit_service, sample_user) -> None:
         """Test successful credit deduction."""
         mock_session = credit_service.db_session_factory()
 
@@ -167,7 +167,7 @@ class TestCreditService:
             mock_repo.get_by_id.return_value = sample_user
             mock_socket_manager.send_to_user = AsyncMock()
 
-            transaction = await credit_service.deduct_credits(
+            await credit_service.deduct_credits(
                 1, CreditActionType.VLC_PLAY_SOUND, success=True, metadata={"test": "data"},
             )
 
@@ -202,7 +202,7 @@ class TestCreditService:
             assert json.loads(added_transaction.metadata_json) == {"test": "data"}
 
     @pytest.mark.asyncio
-    async def test_deduct_credits_failed_action_requires_success(self, credit_service, sample_user):
+    async def test_deduct_credits_failed_action_requires_success(self, credit_service, sample_user) -> None:
         """Test credit deduction when action failed but requires success."""
         mock_session = credit_service.db_session_factory()
 
@@ -213,7 +213,7 @@ class TestCreditService:
             mock_repo.get_by_id.return_value = sample_user
             mock_socket_manager.send_to_user = AsyncMock()
 
-            transaction = await credit_service.deduct_credits(
+            await credit_service.deduct_credits(
                 1, CreditActionType.VLC_PLAY_SOUND, success=False,  # Action failed
             )
 
@@ -235,7 +235,7 @@ class TestCreditService:
             assert added_transaction.success is False
 
     @pytest.mark.asyncio
-    async def test_deduct_credits_insufficient(self, credit_service):
+    async def test_deduct_credits_insufficient(self, credit_service) -> None:
         """Test credit deduction with insufficient credits."""
         mock_session = credit_service.db_session_factory()
         poor_user = User(
@@ -266,7 +266,7 @@ class TestCreditService:
             mock_session.close.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_add_credits(self, credit_service, sample_user):
+    async def test_add_credits(self, credit_service, sample_user) -> None:
         """Test adding credits to user account."""
         mock_session = credit_service.db_session_factory()
 
@@ -277,7 +277,7 @@ class TestCreditService:
             mock_repo.get_by_id.return_value = sample_user
             mock_socket_manager.send_to_user = AsyncMock()
 
-            transaction = await credit_service.add_credits(
+            await credit_service.add_credits(
                 1, 5, "Bonus credits", {"reason": "signup"},
             )
 
@@ -308,7 +308,7 @@ class TestCreditService:
             assert added_transaction.description == "Bonus credits"
 
     @pytest.mark.asyncio
-    async def test_add_credits_invalid_amount(self, credit_service):
+    async def test_add_credits_invalid_amount(self, credit_service) -> None:
         """Test adding invalid amount of credits."""
         with pytest.raises(ValueError, match="Amount must be positive"):
             await credit_service.add_credits(1, 0, "Invalid")
@@ -317,7 +317,7 @@ class TestCreditService:
             await credit_service.add_credits(1, -5, "Invalid")
 
     @pytest.mark.asyncio
-    async def test_get_user_balance(self, credit_service, sample_user):
+    async def test_get_user_balance(self, credit_service, sample_user) -> None:
         """Test getting user credit balance."""
         mock_session = credit_service.db_session_factory()
 
@@ -332,7 +332,7 @@ class TestCreditService:
             mock_session.close.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_get_user_balance_user_not_found(self, credit_service):
+    async def test_get_user_balance_user_not_found(self, credit_service) -> None:
         """Test getting balance for non-existent user."""
         mock_session = credit_service.db_session_factory()
 
@@ -350,7 +350,7 @@ class TestCreditService:
 class TestInsufficientCreditsError:
     """Test InsufficientCreditsError exception."""
 
-    def test_insufficient_credits_error_creation(self):
+    def test_insufficient_credits_error_creation(self) -> None:
         """Test creating InsufficientCreditsError."""
         error = InsufficientCreditsError(5, 2)
         assert error.required == 5

tests/services/test_extraction.py

@@ -26,13 +26,13 @@ class TestExtractionService:
         with patch("app.services.extraction.Path.mkdir"):
             return ExtractionService(mock_session)
 
-    def test_init(self, extraction_service):
+    def test_init(self, extraction_service) -> None:
         """Test service initialization."""
         assert extraction_service.session is not None
         assert extraction_service.extraction_repo is not None
         assert extraction_service.sound_repo is not None
 
-    def test_sanitize_filename(self, extraction_service):
+    def test_sanitize_filename(self, extraction_service) -> None:
         """Test filename sanitization."""
         test_cases = [
             ("Hello World", "Hello World"),
@@ -54,7 +54,7 @@ class TestExtractionService:
     @pytest.mark.asyncio
     async def test_detect_service_info_youtube(
         self, mock_ydl_class, extraction_service,
-    ):
+    ) -> None:
         """Test service detection for YouTube."""
         mock_ydl = Mock()
         mock_ydl_class.return_value.__enter__.return_value = mock_ydl
@@ -79,7 +79,7 @@ class TestExtractionService:
     @pytest.mark.asyncio
     async def test_detect_service_info_failure(
         self, mock_ydl_class, extraction_service,
-    ):
+    ) -> None:
         """Test service detection failure."""
         mock_ydl = Mock()
         mock_ydl_class.return_value.__enter__.return_value = mock_ydl
@@ -90,7 +90,7 @@ class TestExtractionService:
         assert result is None
 
     @pytest.mark.asyncio
-    async def test_create_extraction_success(self, extraction_service):
+    async def test_create_extraction_success(self, extraction_service) -> None:
         """Test successful extraction creation."""
         url = "https://www.youtube.com/watch?v=test123"
         user_id = 1
@@ -118,7 +118,7 @@ class TestExtractionService:
         assert result["status"] == "pending"
 
     @pytest.mark.asyncio
-    async def test_create_extraction_basic(self, extraction_service):
+    async def test_create_extraction_basic(self, extraction_service) -> None:
         """Test basic extraction creation without validation."""
         url = "https://www.youtube.com/watch?v=test123"
         user_id = 1
@@ -144,7 +144,7 @@ class TestExtractionService:
         assert result["status"] == "pending"
 
     @pytest.mark.asyncio
-    async def test_create_extraction_any_url(self, extraction_service):
+    async def test_create_extraction_any_url(self, extraction_service) -> None:
         """Test extraction creation accepts any URL."""
         url = "https://invalid.url"
         user_id = 1
@@ -170,7 +170,7 @@ class TestExtractionService:
         assert result["status"] == "pending"
 
     @pytest.mark.asyncio
-    async def test_process_extraction_with_service_detection(self, extraction_service):
+    async def test_process_extraction_with_service_detection(self, extraction_service) -> None:
         """Test extraction processing with service detection."""
         extraction_id = 1
 
@@ -211,8 +211,8 @@ class TestExtractionService:
             patch.object(
                 extraction_service, "_create_sound_record",
             ) as mock_create_sound,
-            patch.object(extraction_service, "_normalize_sound") as mock_normalize,
-            patch.object(extraction_service, "_add_to_main_playlist") as mock_playlist,
+            patch.object(extraction_service, "_normalize_sound"),
+            patch.object(extraction_service, "_add_to_main_playlist"),
         ):
             mock_sound = Sound(id=42, type="EXT", name="Test", filename="test.mp3")
             mock_extract.return_value = (Path("/fake/audio.mp3"), None)
@@ -234,7 +234,7 @@ class TestExtractionService:
             assert result["service_id"] == "test123"
             assert result["title"] == "Test Video"
 
-    def test_ensure_unique_filename(self, extraction_service):
+    def test_ensure_unique_filename(self, extraction_service) -> None:
         """Test unique filename generation."""
         with tempfile.TemporaryDirectory() as temp_dir:
             temp_path = Path(temp_dir)
@@ -255,7 +255,7 @@ class TestExtractionService:
             assert result == expected_2
 
     @pytest.mark.asyncio
-    async def test_create_sound_record(self, extraction_service):
+    async def test_create_sound_record(self, extraction_service) -> None:
         """Test sound record creation."""
         # Create temporary audio file
         with tempfile.NamedTemporaryFile(suffix=".mp3", delete=False) as f:
@@ -317,7 +317,7 @@ class TestExtractionService:
             audio_path.unlink()
 
     @pytest.mark.asyncio
-    async def test_normalize_sound_success(self, extraction_service):
+    async def test_normalize_sound_success(self, extraction_service) -> None:
         """Test sound normalization."""
         sound = Sound(
             id=1,
@@ -349,7 +349,7 @@ class TestExtractionService:
             mock_normalizer.normalize_sound.assert_called_once_with(sound)
 
     @pytest.mark.asyncio
-    async def test_normalize_sound_failure(self, extraction_service):
+    async def test_normalize_sound_failure(self, extraction_service) -> None:
         """Test sound normalization failure."""
         sound = Sound(
             id=1,
@@ -381,7 +381,7 @@ class TestExtractionService:
             mock_normalizer.normalize_sound.assert_called_once_with(sound)
 
     @pytest.mark.asyncio
-    async def test_get_extraction_by_id(self, extraction_service):
+    async def test_get_extraction_by_id(self, extraction_service) -> None:
         """Test getting extraction by ID."""
         extraction = Extraction(
             id=1,
@@ -409,7 +409,7 @@ class TestExtractionService:
         assert result["sound_id"] == 42
 
     @pytest.mark.asyncio
-    async def test_get_extraction_by_id_not_found(self, extraction_service):
+    async def test_get_extraction_by_id_not_found(self, extraction_service) -> None:
         """Test getting extraction by ID when not found."""
         extraction_service.extraction_repo.get_by_id = AsyncMock(return_value=None)
 
@@ -418,7 +418,7 @@ class TestExtractionService:
         assert result is None
 
     @pytest.mark.asyncio
-    async def test_get_user_extractions(self, extraction_service):
+    async def test_get_user_extractions(self, extraction_service) -> None:
         """Test getting user extractions."""
         extractions = [
             Extraction(
@@ -455,7 +455,7 @@ class TestExtractionService:
         assert result[1]["title"] == "Test Video 2"
 
     @pytest.mark.asyncio
-    async def test_get_pending_extractions(self, extraction_service):
+    async def test_get_pending_extractions(self, extraction_service) -> None:
         """Test getting pending extractions."""
         pending_extractions = [
             Extraction(

tests/services/test_extraction_processor.py

@@ -16,7 +16,7 @@ class TestExtractionProcessor:
         # Use a custom processor instance to avoid affecting the global one
         return ExtractionProcessor()
 
-    def test_init(self, processor):
+    def test_init(self, processor) -> None:
         """Test processor initialization."""
         assert processor.max_concurrent > 0
         assert len(processor.running_extractions) == 0
@@ -25,12 +25,12 @@ class TestExtractionProcessor:
         assert processor.processor_task is None
 
     @pytest.mark.asyncio
-    async def test_start_and_stop(self, processor):
+    async def test_start_and_stop(self, processor) -> None:
         """Test starting and stopping the processor."""
         # Mock the _process_queue method to avoid actual processing
         with patch.object(
             processor, "_process_queue", new_callable=AsyncMock,
-        ) as mock_process:
+        ):
             # Start the processor
             await processor.start()
             assert processor.processor_task is not None
@@ -41,7 +41,7 @@ class TestExtractionProcessor:
             assert processor.processor_task.done()
 
     @pytest.mark.asyncio
-    async def test_start_already_running(self, processor):
+    async def test_start_already_running(self, processor) -> None:
         """Test starting processor when already running."""
         with patch.object(processor, "_process_queue", new_callable=AsyncMock):
             # Start first time
@@ -56,7 +56,7 @@ class TestExtractionProcessor:
             await processor.stop()
 
     @pytest.mark.asyncio
-    async def test_queue_extraction(self, processor):
+    async def test_queue_extraction(self, processor) -> None:
         """Test queuing an extraction."""
         extraction_id = 123
 
@@ -66,7 +66,7 @@ class TestExtractionProcessor:
         assert extraction_id not in processor.running_extractions
 
     @pytest.mark.asyncio
-    async def test_queue_extraction_already_running(self, processor):
+    async def test_queue_extraction_already_running(self, processor) -> None:
         """Test queuing an extraction that's already running."""
         extraction_id = 123
         processor.running_extractions.add(extraction_id)
@@ -75,7 +75,7 @@ class TestExtractionProcessor:
         # Should still be in running extractions
         assert extraction_id in processor.running_extractions
 
-    def test_get_status(self, processor):
+    def test_get_status(self, processor) -> None:
         """Test getting processor status."""
         status = processor.get_status()
 
@@ -89,7 +89,7 @@ class TestExtractionProcessor:
         assert status["currently_processing"] == 0
         assert status["available_slots"] == processor.max_concurrent
 
-    def test_get_status_with_running_extractions(self, processor):
+    def test_get_status_with_running_extractions(self, processor) -> None:
         """Test getting processor status with running extractions."""
         processor.running_extractions.add(123)
         processor.running_extractions.add(456)
@@ -101,7 +101,7 @@ class TestExtractionProcessor:
         assert 123 in status["processing_ids"]
         assert 456 in status["processing_ids"]
 
-    def test_on_extraction_completed(self, processor):
+    def test_on_extraction_completed(self, processor) -> None:
         """Test extraction completion callback."""
         extraction_id = 123
         processor.running_extractions.add(extraction_id)
@@ -115,7 +115,7 @@ class TestExtractionProcessor:
         # Should be removed from running extractions
         assert extraction_id not in processor.running_extractions
 
-    def test_on_extraction_completed_with_exception(self, processor):
+    def test_on_extraction_completed_with_exception(self, processor) -> None:
         """Test extraction completion callback with exception."""
         extraction_id = 123
         processor.running_extractions.add(extraction_id)
@@ -130,7 +130,7 @@ class TestExtractionProcessor:
         assert extraction_id not in processor.running_extractions
 
     @pytest.mark.asyncio
-    async def test_process_single_extraction_success(self, processor):
+    async def test_process_single_extraction_success(self, processor) -> None:
         """Test processing a single extraction successfully."""
         extraction_id = 123
 
@@ -157,7 +157,7 @@ class TestExtractionProcessor:
             mock_service.process_extraction.assert_called_once_with(extraction_id)
 
     @pytest.mark.asyncio
-    async def test_process_single_extraction_failure(self, processor):
+    async def test_process_single_extraction_failure(self, processor) -> None:
         """Test processing a single extraction with failure."""
         extraction_id = 123
 
@@ -183,7 +183,7 @@ class TestExtractionProcessor:
             mock_service.process_extraction.assert_called_once_with(extraction_id)
 
     @pytest.mark.asyncio
-    async def test_process_pending_extractions_no_slots(self, processor):
+    async def test_process_pending_extractions_no_slots(self, processor) -> None:
         """Test processing when no slots are available."""
         # Fill all slots
         for i in range(processor.max_concurrent):
@@ -213,7 +213,7 @@ class TestExtractionProcessor:
             assert 100 not in processor.running_extractions
 
     @pytest.mark.asyncio
-    async def test_process_pending_extractions_with_slots(self, processor):
+    async def test_process_pending_extractions_with_slots(self, processor) -> None:
         """Test processing when slots are available."""
         # Mock extraction service
         mock_service = Mock()
@@ -230,7 +230,7 @@ class TestExtractionProcessor:
             ) as mock_session_class,
             patch.object(
                 processor, "_process_single_extraction", new_callable=AsyncMock,
-            ) as mock_process,
+            ),
             patch(
                 "app.services.extraction_processor.ExtractionService",
                 return_value=mock_service,
@@ -254,7 +254,7 @@ class TestExtractionProcessor:
             assert mock_create_task.call_count == 2
 
     @pytest.mark.asyncio
-    async def test_process_pending_extractions_respect_limit(self, processor):
+    async def test_process_pending_extractions_respect_limit(self, processor) -> None:
         """Test that processing respects concurrency limit."""
         # Set max concurrent to 1 for this test
         processor.max_concurrent = 1
@@ -275,7 +275,7 @@ class TestExtractionProcessor:
             ) as mock_session_class,
             patch.object(
                 processor, "_process_single_extraction", new_callable=AsyncMock,
-            ) as mock_process,
+            ),
             patch(
                 "app.services.extraction_processor.ExtractionService",
                 return_value=mock_service,

tests/services/test_player.py

@@ -24,7 +24,7 @@ from app.services.player import (
 class TestPlayerState:
     """Test player state data structure."""
 
-    def test_init_creates_default_state(self):
+    def test_init_creates_default_state(self) -> None:
         """Test that player state initializes with default values."""
         state = PlayerState()
 
@@ -42,7 +42,7 @@ class TestPlayerState:
         assert state.playlist_duration == 0
         assert state.playlist_sounds == []
 
-    def test_to_dict_serializes_correctly(self):
+    def test_to_dict_serializes_correctly(self) -> None:
         """Test that player state serializes to dict correctly."""
         state = PlayerState()
         state.status = PlayerStatus.PLAYING
@@ -70,7 +70,7 @@ class TestPlayerState:
         assert result["playlist"]["length"] == 5
         assert result["playlist"]["duration"] == 150000
 
-    def test_serialize_sound_with_sound_object(self):
+    def test_serialize_sound_with_sound_object(self) -> None:
         """Test serializing a sound object."""
         state = PlayerState()
         sound = Sound(
@@ -95,7 +95,7 @@ class TestPlayerState:
         assert result["thumbnail"] == "test.jpg"
         assert result["play_count"] == 5
 
-    def test_serialize_sound_with_none(self):
+    def test_serialize_sound_with_none(self) -> None:
         """Test serializing None sound."""
         state = PlayerState()
         result = state._serialize_sound(None)
@@ -133,10 +133,9 @@ class TestPlayerService:
     @pytest.fixture
     def player_service(self, mock_db_session_factory, mock_vlc_instance, mock_socket_manager):
         """Create a player service instance for testing."""
-        service = PlayerService(mock_db_session_factory)
-        return service
+        return PlayerService(mock_db_session_factory)
 
-    def test_init_creates_player_service(self, mock_db_session_factory, mock_vlc_instance):
+    def test_init_creates_player_service(self, mock_db_session_factory, mock_vlc_instance) -> None:
         """Test that player service initializes correctly."""
         with patch("app.services.player.socket_manager"):
             service = PlayerService(mock_db_session_factory)
@@ -153,7 +152,7 @@ class TestPlayerService:
             assert service._loop is None
 
     @pytest.mark.asyncio
-    async def test_start_initializes_service(self, player_service, mock_vlc_instance):
+    async def test_start_initializes_service(self, player_service, mock_vlc_instance) -> None:
         """Test that start method initializes the service."""
         with patch.object(player_service, "reload_playlist", new_callable=AsyncMock):
             await player_service.start()
@@ -165,7 +164,7 @@ class TestPlayerService:
             player_service._player.audio_set_volume.assert_called_once_with(50)
 
     @pytest.mark.asyncio
-    async def test_stop_cleans_up_service(self, player_service):
+    async def test_stop_cleans_up_service(self, player_service) -> None:
         """Test that stop method cleans up the service."""
         # Setup initial state
         player_service._is_running = True
@@ -180,7 +179,7 @@ class TestPlayerService:
             player_service._player.release.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_play_new_track(self, player_service, mock_vlc_instance):
+    async def test_play_new_track(self, player_service, mock_vlc_instance) -> None:
         """Test playing a new track."""
         # Setup test sound
         sound = Sound(
@@ -212,7 +211,7 @@ class TestPlayerService:
                 assert 1 in player_service._play_time_tracking
 
     @pytest.mark.asyncio
-    async def test_play_resume_from_pause(self, player_service):
+    async def test_play_resume_from_pause(self, player_service) -> None:
         """Test resuming playback from pause."""
         # Setup paused state
         sound = Sound(id=1, name="Test Song", filename="test.mp3", duration=30000)
@@ -230,7 +229,7 @@ class TestPlayerService:
             player_service._player.play.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_play_invalid_index(self, player_service):
+    async def test_play_invalid_index(self, player_service) -> None:
         """Test playing with invalid index raises ValueError."""
         player_service.state.playlist_sounds = []
 
@@ -238,7 +237,7 @@ class TestPlayerService:
             await player_service.play(0)
 
     @pytest.mark.asyncio
-    async def test_pause_when_playing(self, player_service):
+    async def test_pause_when_playing(self, player_service) -> None:
         """Test pausing when currently playing."""
         player_service.state.status = PlayerStatus.PLAYING
 
@@ -249,7 +248,7 @@ class TestPlayerService:
             player_service._player.pause.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_pause_when_not_playing(self, player_service):
+    async def test_pause_when_not_playing(self, player_service) -> None:
         """Test pausing when not playing does nothing."""
         player_service.state.status = PlayerStatus.STOPPED
 
@@ -260,7 +259,7 @@ class TestPlayerService:
             mock_broadcast.assert_not_called()
 
     @pytest.mark.asyncio
-    async def test_stop_playback(self, player_service):
+    async def test_stop_playback(self, player_service) -> None:
         """Test stopping playback."""
         player_service.state.status = PlayerStatus.PLAYING
         player_service.state.current_sound_position = 5000
@@ -274,7 +273,7 @@ class TestPlayerService:
                 player_service._player.stop.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_next_track(self, player_service):
+    async def test_next_track(self, player_service) -> None:
         """Test skipping to next track."""
         sound1 = Sound(id=1, name="Song 1", filename="song1.mp3")
         sound2 = Sound(id=2, name="Song 2", filename="song2.mp3")
@@ -286,7 +285,7 @@ class TestPlayerService:
             mock_play.assert_called_once_with(1)
 
     @pytest.mark.asyncio
-    async def test_previous_track(self, player_service):
+    async def test_previous_track(self, player_service) -> None:
         """Test going to previous track."""
         sound1 = Sound(id=1, name="Song 1", filename="song1.mp3")
         sound2 = Sound(id=2, name="Song 2", filename="song2.mp3")
@@ -298,7 +297,7 @@ class TestPlayerService:
             mock_play.assert_called_once_with(0)
 
     @pytest.mark.asyncio
-    async def test_seek_position(self, player_service):
+    async def test_seek_position(self, player_service) -> None:
         """Test seeking to specific position."""
         player_service.state.status = PlayerStatus.PLAYING
         player_service.state.current_sound_duration = 30000
@@ -311,7 +310,7 @@ class TestPlayerService:
             assert player_service.state.current_sound_position == 15000
 
     @pytest.mark.asyncio
-    async def test_seek_when_stopped(self, player_service):
+    async def test_seek_when_stopped(self, player_service) -> None:
         """Test seeking when stopped does nothing."""
         player_service.state.status = PlayerStatus.STOPPED
 
@@ -322,7 +321,7 @@ class TestPlayerService:
             mock_broadcast.assert_not_called()
 
     @pytest.mark.asyncio
-    async def test_set_volume(self, player_service):
+    async def test_set_volume(self, player_service) -> None:
         """Test setting volume."""
         with patch.object(player_service, "_broadcast_state", new_callable=AsyncMock):
             await player_service.set_volume(75)
@@ -331,7 +330,7 @@ class TestPlayerService:
             player_service._player.audio_set_volume.assert_called_once_with(75)
 
     @pytest.mark.asyncio
-    async def test_set_volume_clamping(self, player_service):
+    async def test_set_volume_clamping(self, player_service) -> None:
         """Test volume clamping to valid range."""
         with patch.object(player_service, "_broadcast_state", new_callable=AsyncMock):
             # Test upper bound
@@ -343,7 +342,7 @@ class TestPlayerService:
             assert player_service.state.volume == 0
 
     @pytest.mark.asyncio
-    async def test_set_mode(self, player_service):
+    async def test_set_mode(self, player_service) -> None:
         """Test setting playback mode."""
         with patch.object(player_service, "_broadcast_state", new_callable=AsyncMock):
             await player_service.set_mode(PlayerMode.LOOP)
@@ -351,7 +350,7 @@ class TestPlayerService:
             assert player_service.state.mode == PlayerMode.LOOP
 
     @pytest.mark.asyncio
-    async def test_reload_playlist(self, player_service):
+    async def test_reload_playlist(self, player_service) -> None:
         """Test reloading playlist from database."""
         mock_session = AsyncMock()
         player_service.db_session_factory = lambda: mock_session
@@ -383,7 +382,7 @@ class TestPlayerService:
                 assert player_service.state.playlist_duration == 75000
 
     @pytest.mark.asyncio
-    async def test_handle_playlist_id_changed(self, player_service):
+    async def test_handle_playlist_id_changed(self, player_service) -> None:
         """Test handling when playlist ID changes."""
         # Setup initial state
         player_service.state.status = PlayerStatus.PLAYING
@@ -405,7 +404,7 @@ class TestPlayerService:
             assert player_service.state.current_sound_id == 1
 
     @pytest.mark.asyncio
-    async def test_handle_playlist_id_changed_empty_playlist(self, player_service):
+    async def test_handle_playlist_id_changed_empty_playlist(self, player_service) -> None:
         """Test handling playlist ID change with empty playlist."""
         player_service.state.status = PlayerStatus.PLAYING
 
@@ -418,7 +417,7 @@ class TestPlayerService:
             assert player_service.state.current_sound_id is None
 
     @pytest.mark.asyncio
-    async def test_handle_same_playlist_track_exists_same_index(self, player_service):
+    async def test_handle_same_playlist_track_exists_same_index(self, player_service) -> None:
         """Test handling same playlist when track exists at same index."""
         sound1 = Sound(id=1, name="Song 1", filename="song1.mp3", duration=30000)
         sound2 = Sound(id=2, name="Song 2", filename="song2.mp3", duration=45000)
@@ -431,7 +430,7 @@ class TestPlayerService:
         assert player_service.state.current_sound == sound1
 
     @pytest.mark.asyncio
-    async def test_handle_same_playlist_track_exists_different_index(self, player_service):
+    async def test_handle_same_playlist_track_exists_different_index(self, player_service) -> None:
         """Test handling same playlist when track exists at different index."""
         sound1 = Sound(id=2, name="Song 2", filename="song2.mp3", duration=45000)
         sound2 = Sound(id=1, name="Song 1", filename="song1.mp3", duration=30000)
@@ -444,7 +443,7 @@ class TestPlayerService:
         assert player_service.state.current_sound == sound2
 
     @pytest.mark.asyncio
-    async def test_handle_same_playlist_track_not_found(self, player_service):
+    async def test_handle_same_playlist_track_not_found(self, player_service) -> None:
         """Test handling same playlist when current track no longer exists."""
         player_service.state.status = PlayerStatus.PLAYING
         sound1 = Sound(id=2, name="Song 2", filename="song2.mp3", duration=45000)
@@ -456,7 +455,7 @@ class TestPlayerService:
             mock_removed.assert_called_once_with(1, sounds)
 
     @pytest.mark.asyncio
-    async def test_handle_track_removed_with_sounds(self, player_service):
+    async def test_handle_track_removed_with_sounds(self, player_service) -> None:
         """Test handling when current track is removed with sounds available."""
         player_service.state.status = PlayerStatus.PLAYING
         sound1 = Sound(id=2, name="Song 2", filename="song2.mp3", duration=45000)
@@ -471,7 +470,7 @@ class TestPlayerService:
             assert player_service.state.current_sound_id == 2
 
     @pytest.mark.asyncio
-    async def test_handle_track_removed_empty_playlist(self, player_service):
+    async def test_handle_track_removed_empty_playlist(self, player_service) -> None:
         """Test handling when current track is removed with empty playlist."""
         player_service.state.status = PlayerStatus.PLAYING
 
@@ -483,7 +482,7 @@ class TestPlayerService:
             assert player_service.state.current_sound is None
             assert player_service.state.current_sound_id is None
 
-    def test_update_playlist_state(self, player_service):
+    def test_update_playlist_state(self, player_service) -> None:
         """Test updating playlist state information."""
         mock_playlist = Mock()
         mock_playlist.id = 5
@@ -501,7 +500,7 @@ class TestPlayerService:
         assert player_service.state.playlist_length == 2
         assert player_service.state.playlist_duration == 75000
 
-    def test_find_sound_index_found(self, player_service):
+    def test_find_sound_index_found(self, player_service) -> None:
         """Test finding sound index when sound exists."""
         sound1 = Sound(id=1, name="Song 1", filename="song1.mp3", duration=30000)
         sound2 = Sound(id=2, name="Song 2", filename="song2.mp3", duration=45000)
@@ -510,7 +509,7 @@ class TestPlayerService:
         index = player_service._find_sound_index(2, sounds)
         assert index == 1
 
-    def test_find_sound_index_not_found(self, player_service):
+    def test_find_sound_index_not_found(self, player_service) -> None:
         """Test finding sound index when sound doesn't exist."""
         sound1 = Sound(id=1, name="Song 1", filename="song1.mp3", duration=30000)
         sounds = [sound1]
@@ -518,7 +517,7 @@ class TestPlayerService:
         index = player_service._find_sound_index(999, sounds)
         assert index is None
 
-    def test_set_first_track_as_current(self, player_service):
+    def test_set_first_track_as_current(self, player_service) -> None:
         """Test setting first track as current."""
         sound1 = Sound(id=1, name="Song 1", filename="song1.mp3", duration=30000)
         sound2 = Sound(id=2, name="Song 2", filename="song2.mp3", duration=45000)
@@ -530,7 +529,7 @@ class TestPlayerService:
         assert player_service.state.current_sound == sound1
         assert player_service.state.current_sound_id == 1
 
-    def test_clear_current_track(self, player_service):
+    def test_clear_current_track(self, player_service) -> None:
         """Test clearing current track state."""
         # Set some initial state
         player_service.state.current_sound_index = 2
@@ -544,7 +543,7 @@ class TestPlayerService:
         assert player_service.state.current_sound_id is None
 
     @pytest.mark.asyncio
-    async def test_reload_playlist_different_id_scenario(self, player_service):
+    async def test_reload_playlist_different_id_scenario(self, player_service) -> None:
         """Test complete reload scenario when playlist ID changes."""
         # Setup current state
         player_service.state.playlist_id = 1
@@ -580,7 +579,7 @@ class TestPlayerService:
                     assert player_service.state.current_sound_id == 1
 
     @pytest.mark.asyncio
-    async def test_reload_playlist_same_id_track_moved(self, player_service):
+    async def test_reload_playlist_same_id_track_moved(self, player_service) -> None:
         """Test reload when playlist ID same but track moved to different index."""
         # Setup current state
         player_service.state.playlist_id = 1
@@ -616,7 +615,7 @@ class TestPlayerService:
                 assert player_service.state.current_sound == sound1
 
 
-    def test_get_next_index_continuous_mode(self, player_service):
+    def test_get_next_index_continuous_mode(self, player_service) -> None:
         """Test getting next index in continuous mode."""
         player_service.state.mode = PlayerMode.CONTINUOUS
         player_service.state.playlist_sounds = [Mock(), Mock(), Mock()]
@@ -628,7 +627,7 @@ class TestPlayerService:
         # Test end of playlist
         assert player_service._get_next_index(2) is None
 
-    def test_get_next_index_loop_mode(self, player_service):
+    def test_get_next_index_loop_mode(self, player_service) -> None:
         """Test getting next index in loop mode."""
         player_service.state.mode = PlayerMode.LOOP
         player_service.state.playlist_sounds = [Mock(), Mock(), Mock()]
@@ -640,7 +639,7 @@ class TestPlayerService:
         # Test wrapping to beginning
         assert player_service._get_next_index(2) == 0
 
-    def test_get_next_index_loop_one_mode(self, player_service):
+    def test_get_next_index_loop_one_mode(self, player_service) -> None:
         """Test getting next index in loop one mode."""
         player_service.state.mode = PlayerMode.LOOP_ONE
         player_service.state.playlist_sounds = [Mock(), Mock(), Mock()]
@@ -650,7 +649,7 @@ class TestPlayerService:
         assert player_service._get_next_index(1) == 1
         assert player_service._get_next_index(2) == 2
 
-    def test_get_next_index_single_mode(self, player_service):
+    def test_get_next_index_single_mode(self, player_service) -> None:
         """Test getting next index in single mode."""
         player_service.state.mode = PlayerMode.SINGLE
         player_service.state.playlist_sounds = [Mock(), Mock(), Mock()]
@@ -660,7 +659,7 @@ class TestPlayerService:
         assert player_service._get_next_index(1) is None
         assert player_service._get_next_index(2) is None
 
-    def test_get_next_index_random_mode(self, player_service):
+    def test_get_next_index_random_mode(self, player_service) -> None:
         """Test getting next index in random mode."""
         player_service.state.mode = PlayerMode.RANDOM
         player_service.state.playlist_sounds = [Mock(), Mock(), Mock()]
@@ -674,7 +673,7 @@ class TestPlayerService:
             # Should exclude current index
             mock_choice.assert_called_once_with([1, 2])
 
-    def test_get_previous_index(self, player_service):
+    def test_get_previous_index(self, player_service) -> None:
         """Test getting previous index."""
         player_service.state.playlist_sounds = [Mock(), Mock(), Mock()]
 
@@ -690,7 +689,7 @@ class TestPlayerService:
         player_service.state.mode = PlayerMode.LOOP
         assert player_service._get_previous_index(0) == 2
 
-    def test_update_play_time(self, player_service):
+    def test_update_play_time(self, player_service) -> None:
         """Test updating play time tracking."""
         # Setup state
         player_service.state.status = PlayerStatus.PLAYING
@@ -716,7 +715,7 @@ class TestPlayerService:
             assert tracking["last_update"] == current_time
 
     @pytest.mark.asyncio
-    async def test_record_play_count(self, player_service):
+    async def test_record_play_count(self, player_service) -> None:
         """Test recording play count for a sound."""
         mock_session = AsyncMock()
         player_service.db_session_factory = lambda: mock_session
@@ -742,7 +741,7 @@ class TestPlayerService:
             mock_session.add.assert_called_once()
             mock_session.commit.assert_called_once()
 
-    def test_get_state(self, player_service):
+    def test_get_state(self, player_service) -> None:
         """Test getting current player state."""
         result = player_service.get_state()
         assert isinstance(result, dict)
@@ -750,7 +749,7 @@ class TestPlayerService:
         assert "mode" in result
         assert "volume" in result
 
-    def test_uses_shared_sound_path_utility(self, player_service):
+    def test_uses_shared_sound_path_utility(self, player_service) -> None:
         """Test that player service uses the shared sound path utility."""
         sound = Sound(
             id=1,
@@ -767,7 +766,7 @@ class TestPlayerService:
             mock_path.return_value = mock_file_path
 
             # This should fail because file doesn't exist
-            result = asyncio.run(player_service.play(0))
+            asyncio.run(player_service.play(0))
             # Verify the utility was called
             mock_path.assert_called_once_with(sound)
 
@@ -776,7 +775,7 @@ class TestPlayerServiceGlobalFunctions:
     """Test global player service functions."""
 
     @pytest.mark.asyncio
-    async def test_initialize_player_service(self):
+    async def test_initialize_player_service(self) -> None:
         """Test initializing global player service."""
         mock_factory = Mock()
 
@@ -790,7 +789,7 @@ class TestPlayerServiceGlobalFunctions:
             mock_service.start.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_shutdown_player_service(self):
+    async def test_shutdown_player_service(self) -> None:
         """Test shutting down global player service."""
         # Mock global player service exists
         with patch("app.services.player.player_service") as mock_global:
@@ -802,7 +801,7 @@ class TestPlayerServiceGlobalFunctions:
                 await shutdown_player_service()
                 mock_service.stop.assert_called_once()
 
-    def test_get_player_service_success(self):
+    def test_get_player_service_success(self) -> None:
         """Test getting player service when initialized."""
         mock_service = Mock()
 
@@ -810,7 +809,7 @@ class TestPlayerServiceGlobalFunctions:
             result = get_player_service()
             assert result is mock_service
 
-    def test_get_player_service_not_initialized(self):
+    def test_get_player_service_not_initialized(self) -> None:
         """Test getting player service when not initialized."""
         with patch("app.services.player.player_service", None):
             with pytest.raises(RuntimeError, match="Player service not initialized"):

tests/services/test_socket_service.py

@@ -22,7 +22,7 @@ class TestSocketManager:
         socket_manager.sio = AsyncMock(spec=socketio.AsyncServer)
         return socket_manager.sio
 
-    def test_init_creates_socket_server(self):
+    def test_init_creates_socket_server(self) -> None:
         """Test that socket manager initializes with proper configuration."""
         manager = SocketManager()
 
@@ -33,7 +33,7 @@ class TestSocketManager:
         assert len(manager.socket_users) == 0
 
     @pytest.mark.asyncio
-    async def test_send_to_user_success(self, socket_manager, mock_sio):
+    async def test_send_to_user_success(self, socket_manager, mock_sio) -> None:
         """Test sending message to connected user."""
         user_id = "123"
         room_id = "user_123"
@@ -48,7 +48,7 @@ class TestSocketManager:
         mock_sio.emit.assert_called_once_with(event, data, room=room_id)
 
     @pytest.mark.asyncio
-    async def test_send_to_user_not_connected(self, socket_manager, mock_sio):
+    async def test_send_to_user_not_connected(self, socket_manager, mock_sio) -> None:
         """Test sending message to user who is not connected."""
         user_id = "999"
         event = "test_event"
@@ -60,7 +60,7 @@ class TestSocketManager:
         mock_sio.emit.assert_not_called()
 
     @pytest.mark.asyncio
-    async def test_broadcast_to_all(self, socket_manager, mock_sio):
+    async def test_broadcast_to_all(self, socket_manager, mock_sio) -> None:
         """Test broadcasting message to all users."""
         event = "broadcast_event"
         data = {"message": "announcement"}
@@ -69,7 +69,7 @@ class TestSocketManager:
 
         mock_sio.emit.assert_called_once_with(event, data)
 
-    def test_get_connected_users(self, socket_manager):
+    def test_get_connected_users(self, socket_manager) -> None:
         """Test getting list of connected users."""
         # Add some users
         socket_manager.user_rooms["1"] = "user_1"
@@ -83,7 +83,7 @@ class TestSocketManager:
         assert "2" in connected_users
         assert "3" in connected_users
 
-    def test_get_room_info(self, socket_manager):
+    def test_get_room_info(self, socket_manager) -> None:
         """Test getting room information."""
         # Add some users
         socket_manager.user_rooms["1"] = "user_1"
@@ -99,7 +99,7 @@ class TestSocketManager:
     @patch("app.services.socket.JWTUtils.decode_access_token")
     async def test_connect_handler_success(
         self, mock_decode, mock_extract_token, socket_manager, mock_sio,
-    ):
+    ) -> None:
         """Test successful connection with valid token."""
         # Setup mocks
         mock_extract_token.return_value = "valid_token"
@@ -110,7 +110,6 @@ class TestSocketManager:
 
         # Access the connect handler directly
         handlers = {}
-        original_event = socket_manager.sio.event
 
         def mock_event(func):
             handlers[func.__name__] = func
@@ -134,7 +133,7 @@ class TestSocketManager:
     @patch("app.services.socket.extract_access_token_from_cookies")
     async def test_connect_handler_no_token(
         self, mock_extract_token, socket_manager, mock_sio,
-    ):
+    ) -> None:
         """Test connection with no access token."""
         # Setup mocks
         mock_extract_token.return_value = None
@@ -144,7 +143,6 @@ class TestSocketManager:
 
         # Access the connect handler directly
         handlers = {}
-        original_event = socket_manager.sio.event
 
         def mock_event(func):
             handlers[func.__name__] = func
@@ -168,7 +166,7 @@ class TestSocketManager:
     @patch("app.services.socket.JWTUtils.decode_access_token")
     async def test_connect_handler_invalid_token(
         self, mock_decode, mock_extract_token, socket_manager, mock_sio,
-    ):
+    ) -> None:
         """Test connection with invalid token."""
         # Setup mocks
         mock_extract_token.return_value = "invalid_token"
@@ -179,7 +177,6 @@ class TestSocketManager:
 
         # Access the connect handler directly
         handlers = {}
-        original_event = socket_manager.sio.event
 
         def mock_event(func):
             handlers[func.__name__] = func
@@ -203,7 +200,7 @@ class TestSocketManager:
     @patch("app.services.socket.JWTUtils.decode_access_token")
     async def test_connect_handler_missing_user_id(
         self, mock_decode, mock_extract_token, socket_manager, mock_sio,
-    ):
+    ) -> None:
         """Test connection with token missing user ID."""
         # Setup mocks
         mock_extract_token.return_value = "token_without_user_id"
@@ -214,7 +211,6 @@ class TestSocketManager:
 
         # Access the connect handler directly
         handlers = {}
-        original_event = socket_manager.sio.event
 
         def mock_event(func):
             handlers[func.__name__] = func
@@ -234,7 +230,7 @@ class TestSocketManager:
         assert len(socket_manager.user_rooms) == 0
 
     @pytest.mark.asyncio
-    async def test_disconnect_handler(self, socket_manager, mock_sio):
+    async def test_disconnect_handler(self, socket_manager, mock_sio) -> None:
         """Test disconnect handler."""
         # Setup initial state
         socket_manager.socket_users["test_sid"] = "123"
@@ -242,7 +238,6 @@ class TestSocketManager:
 
         # Access the disconnect handler directly
         handlers = {}
-        original_event = socket_manager.sio.event
 
         def mock_event(func):
             handlers[func.__name__] = func
@@ -259,11 +254,10 @@ class TestSocketManager:
         assert "123" not in socket_manager.user_rooms
 
     @pytest.mark.asyncio
-    async def test_disconnect_handler_unknown_socket(self, socket_manager, mock_sio):
+    async def test_disconnect_handler_unknown_socket(self, socket_manager, mock_sio) -> None:
         """Test disconnect handler with unknown socket."""
         # Access the disconnect handler directly
         handlers = {}
-        original_event = socket_manager.sio.event
 
         def mock_event(func):
             handlers[func.__name__] = func

tests/services/test_sound_normalizer.py

@@ -28,7 +28,7 @@ class TestSoundNormalizerService:
             mock_settings.NORMALIZED_AUDIO_PASSES = 2
             return SoundNormalizerService(mock_session)
 
-    def test_init(self, normalizer_service):
+    def test_init(self, normalizer_service) -> None:
         """Test normalizer service initialization."""
         assert normalizer_service.session is not None
         assert normalizer_service.sound_repo is not None
@@ -40,7 +40,7 @@ class TestSoundNormalizerService:
         assert "TTS" in normalizer_service.type_directories
         assert "EXT" in normalizer_service.type_directories
 
-    def test_get_normalized_path(self, normalizer_service):
+    def test_get_normalized_path(self, normalizer_service) -> None:
         """Test normalized path generation."""
         sound = Sound(
             id=1,
@@ -57,7 +57,7 @@ class TestSoundNormalizerService:
         assert "sounds/normalized/soundboard" in str(normalized_path)
         assert normalized_path.name == "test_audio.mp3"
 
-    def test_get_original_path(self, normalizer_service):
+    def test_get_original_path(self, normalizer_service) -> None:
         """Test original path generation."""
         sound = Sound(
             id=1,
@@ -74,7 +74,7 @@ class TestSoundNormalizerService:
         assert "sounds/originals/soundboard" in str(original_path)
         assert original_path.name == "test_audio.wav"
 
-    def test_get_file_hash(self, normalizer_service):
+    def test_get_file_hash(self, normalizer_service) -> None:
         """Test file hash calculation."""
         # Create a temporary file
         with tempfile.NamedTemporaryFile(mode="w", delete=False) as f:
@@ -90,7 +90,7 @@ class TestSoundNormalizerService:
         finally:
             temp_path.unlink()
 
-    def test_get_file_size(self, normalizer_service):
+    def test_get_file_size(self, normalizer_service) -> None:
         """Test file size calculation."""
         # Create a temporary file
         with tempfile.NamedTemporaryFile(mode="w", delete=False) as f:
@@ -107,7 +107,7 @@ class TestSoundNormalizerService:
             temp_path.unlink()
 
     @patch("app.utils.audio.ffmpeg.probe")
-    def test_get_audio_duration_success(self, mock_probe, normalizer_service):
+    def test_get_audio_duration_success(self, mock_probe, normalizer_service) -> None:
         """Test successful audio duration extraction."""
         mock_probe.return_value = {"format": {"duration": "123.456"}}
 
@@ -120,7 +120,7 @@ class TestSoundNormalizerService:
         mock_probe.assert_called_once_with(str(temp_path))
 
     @patch("app.utils.audio.ffmpeg.probe")
-    def test_get_audio_duration_failure(self, mock_probe, normalizer_service):
+    def test_get_audio_duration_failure(self, mock_probe, normalizer_service) -> None:
         """Test audio duration extraction failure."""
         mock_probe.side_effect = Exception("FFmpeg error")
 
@@ -133,7 +133,7 @@ class TestSoundNormalizerService:
         mock_probe.assert_called_once_with(str(temp_path))
 
     @pytest.mark.asyncio
-    async def test_normalize_sound_already_normalized(self, normalizer_service):
+    async def test_normalize_sound_already_normalized(self, normalizer_service) -> None:
         """Test normalizing a sound that's already normalized."""
         sound = Sound(
             id=1,
@@ -154,7 +154,7 @@ class TestSoundNormalizerService:
         assert result["id"] == 1
 
     @pytest.mark.asyncio
-    async def test_normalize_sound_force_already_normalized(self, normalizer_service):
+    async def test_normalize_sound_force_already_normalized(self, normalizer_service) -> None:
         """Test force normalizing a sound that's already normalized."""
         sound = Sound(
             id=1,
@@ -173,7 +173,7 @@ class TestSoundNormalizerService:
             patch.object(normalizer_service, "_get_normalized_path") as mock_norm_path,
             patch.object(
                 normalizer_service, "_normalize_audio_two_pass",
-            ) as mock_normalize,
+            ),
             patch(
                 "app.services.sound_normalizer.get_audio_duration", return_value=6000,
             ),
@@ -203,7 +203,7 @@ class TestSoundNormalizerService:
                 normalizer_service.sound_repo.update.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_normalize_sound_file_not_found(self, normalizer_service):
+    async def test_normalize_sound_file_not_found(self, normalizer_service) -> None:
         """Test normalizing a sound where original file doesn't exist."""
         sound = Sound(
             id=1,
@@ -228,7 +228,7 @@ class TestSoundNormalizerService:
                 assert result["filename"] == "missing.mp3"
 
     @pytest.mark.asyncio
-    async def test_normalize_sound_one_pass(self, normalizer_service):
+    async def test_normalize_sound_one_pass(self, normalizer_service) -> None:
         """Test normalizing a sound using one-pass method."""
         sound = Sound(
             id=1,
@@ -275,7 +275,7 @@ class TestSoundNormalizerService:
                 mock_normalize.assert_called_once()
 
     @pytest.mark.asyncio
-    async def test_normalize_sound_normalization_error(self, normalizer_service):
+    async def test_normalize_sound_normalization_error(self, normalizer_service) -> None:
         """Test handling normalization errors."""
         sound = Sound(
             id=1,
@@ -312,7 +312,7 @@ class TestSoundNormalizerService:
                 assert result["filename"] == "test.mp3"
 
     @pytest.mark.asyncio
-    async def test_normalize_all_sounds(self, normalizer_service):
+    async def test_normalize_all_sounds(self, normalizer_service) -> None:
         """Test normalizing all unnormalized sounds."""
         sounds = [
             Sound(
@@ -382,7 +382,7 @@ class TestSoundNormalizerService:
             assert len(results["files"]) == 2
 
     @pytest.mark.asyncio
-    async def test_normalize_sounds_by_type(self, normalizer_service):
+    async def test_normalize_sounds_by_type(self, normalizer_service) -> None:
         """Test normalizing sounds by type."""
         sdb_sounds = [
             Sound(
@@ -432,7 +432,7 @@ class TestSoundNormalizerService:
             )
 
     @pytest.mark.asyncio
-    async def test_normalize_sounds_with_errors(self, normalizer_service):
+    async def test_normalize_sounds_with_errors(self, normalizer_service) -> None:
         """Test normalizing sounds with some errors."""
         sounds = [
             Sound(
@@ -512,7 +512,7 @@ class TestSoundNormalizerService:
         self,
         mock_ffmpeg,
         normalizer_service,
-    ):
+    ) -> None:
         """Test one-pass audio normalization for MP3."""
         input_path = Path("/fake/input.wav")
         output_path = Path("/fake/output.mp3")
@@ -547,7 +547,7 @@ class TestSoundNormalizerService:
         self,
         mock_ffmpeg,
         normalizer_service,
-    ):
+    ) -> None:
         """Test two-pass audio normalization analysis phase."""
         input_path = Path("/fake/input.wav")
         output_path = Path("/fake/output.mp3")

tests/services/test_sound_scanner.py

@@ -24,7 +24,7 @@ class TestSoundScannerService:
         """Create a scanner service with mock session."""
         return SoundScannerService(mock_session)
 
-    def test_init(self, scanner_service):
+    def test_init(self, scanner_service) -> None:
         """Test scanner service initialization."""
         assert scanner_service.session is not None
         assert scanner_service.sound_repo is not None
@@ -32,7 +32,7 @@ class TestSoundScannerService:
         assert ".mp3" in scanner_service.supported_extensions
         assert ".wav" in scanner_service.supported_extensions
 
-    def test_get_file_hash(self, scanner_service):
+    def test_get_file_hash(self, scanner_service) -> None:
         """Test file hash calculation."""
         # Create a temporary file
         with tempfile.NamedTemporaryFile(mode="w", delete=False) as f:
@@ -48,7 +48,7 @@ class TestSoundScannerService:
         finally:
             temp_path.unlink()
 
-    def test_get_file_size(self, scanner_service):
+    def test_get_file_size(self, scanner_service) -> None:
         """Test file size calculation."""
         # Create a temporary file
         with tempfile.NamedTemporaryFile(mode="w", delete=False) as f:
@@ -64,7 +64,7 @@ class TestSoundScannerService:
         finally:
             temp_path.unlink()
 
-    def test_extract_name_from_filename(self, scanner_service):
+    def test_extract_name_from_filename(self, scanner_service) -> None:
         """Test name extraction from filename."""
         test_cases = [
             ("hello_world.mp3", "Hello World"),
@@ -79,7 +79,7 @@ class TestSoundScannerService:
             assert result == expected_name
 
     @patch("app.utils.audio.ffmpeg.probe")
-    def test_get_audio_duration_success(self, mock_probe, scanner_service):
+    def test_get_audio_duration_success(self, mock_probe, scanner_service) -> None:
         """Test successful audio duration extraction."""
         mock_probe.return_value = {"format": {"duration": "123.456"}}
 
@@ -92,7 +92,7 @@ class TestSoundScannerService:
         mock_probe.assert_called_once_with(str(temp_path))
 
     @patch("app.utils.audio.ffmpeg.probe")
-    def test_get_audio_duration_failure(self, mock_probe, scanner_service):
+    def test_get_audio_duration_failure(self, mock_probe, scanner_service) -> None:
         """Test audio duration extraction failure."""
         mock_probe.side_effect = Exception("FFmpeg error")
 
@@ -105,13 +105,13 @@ class TestSoundScannerService:
         mock_probe.assert_called_once_with(str(temp_path))
 
     @pytest.mark.asyncio
-    async def test_scan_directory_nonexistent(self, scanner_service):
+    async def test_scan_directory_nonexistent(self, scanner_service) -> None:
         """Test scanning a non-existent directory."""
         with pytest.raises(ValueError, match="Directory does not exist"):
             await scanner_service.scan_directory("/non/existent/path")
 
     @pytest.mark.asyncio
-    async def test_scan_directory_not_directory(self, scanner_service):
+    async def test_scan_directory_not_directory(self, scanner_service) -> None:
         """Test scanning a path that is not a directory."""
         # Create a temporary file
         with tempfile.NamedTemporaryFile() as f:
@@ -119,7 +119,7 @@ class TestSoundScannerService:
                 await scanner_service.scan_directory(f.name)
 
     @pytest.mark.asyncio
-    async def test_sync_audio_file_unchanged(self, scanner_service):
+    async def test_sync_audio_file_unchanged(self, scanner_service) -> None:
         """Test syncing file that is unchanged."""
         # Existing sound with same hash as file
         existing_sound = Sound(
@@ -166,7 +166,7 @@ class TestSoundScannerService:
                 temp_path.unlink()
 
     @pytest.mark.asyncio
-    async def test_sync_audio_file_new(self, scanner_service):
+    async def test_sync_audio_file_new(self, scanner_service) -> None:
         """Test syncing a new audio file."""
         created_sound = Sound(
             id=1,
@@ -221,7 +221,7 @@ class TestSoundScannerService:
                 temp_path.unlink()
 
     @pytest.mark.asyncio
-    async def test_sync_audio_file_updated(self, scanner_service):
+    async def test_sync_audio_file_updated(self, scanner_service) -> None:
         """Test syncing a file that was modified (different hash)."""
         # Existing sound with different hash than file
         existing_sound = Sound(
@@ -280,7 +280,7 @@ class TestSoundScannerService:
                 temp_path.unlink()
 
     @pytest.mark.asyncio
-    async def test_sync_audio_file_custom_type(self, scanner_service):
+    async def test_sync_audio_file_custom_type(self, scanner_service) -> None:
         """Test syncing file with custom type."""
         created_sound = Sound(
             id=1,

tests/services/test_vlc_player.py

@@ -6,7 +6,6 @@ from unittest.mock import AsyncMock, Mock, patch
 
 import pytest
 
-from app.models.credit_transaction import CreditTransaction
 from app.models.sound import Sound
 from app.models.user import User
 from app.services.vlc_player import VLCPlayerService, get_vlc_player_service
@@ -62,20 +61,20 @@ class TestVLCPlayerService:
             normalized_filename="normalized.mp3",
         )
 
-    def test_init(self, vlc_service):
+    def test_init(self, vlc_service) -> None:
         """Test VLC service initialization."""
         assert vlc_service.vlc_executable is not None
         assert isinstance(vlc_service.vlc_executable, str)
 
     @patch("app.services.vlc_player.subprocess.run")
-    def test_find_vlc_executable_found_in_path(self, mock_run):
+    def test_find_vlc_executable_found_in_path(self, mock_run) -> None:
         """Test VLC executable detection when found in PATH."""
         mock_run.return_value.returncode = 0
         service = VLCPlayerService()
         assert service.vlc_executable == "vlc"
 
     @patch("app.services.vlc_player.subprocess.run")
-    def test_find_vlc_executable_found_by_path(self, mock_run):
+    def test_find_vlc_executable_found_by_path(self, mock_run) -> None:
         """Test VLC executable detection when found by absolute path."""
         mock_run.return_value.returncode = 1  # which command fails
 
@@ -93,7 +92,7 @@ class TestVLCPlayerService:
 
     @patch("app.services.vlc_player.subprocess.run")
     @patch("app.services.vlc_player.Path")
-    def test_find_vlc_executable_fallback(self, mock_path, mock_run):
+    def test_find_vlc_executable_fallback(self, mock_path, mock_run) -> None:
         """Test VLC executable detection fallback to default."""
         # Mock all paths as non-existent
         mock_path_instance = Mock()
@@ -111,7 +110,7 @@ class TestVLCPlayerService:
     @patch("app.services.vlc_player.asyncio.create_subprocess_exec")
     async def test_play_sound_success(
         self, mock_subprocess, vlc_service, sample_sound,
-    ):
+    ) -> None:
         """Test successful sound playback."""
         # Mock subprocess
         mock_process = Mock()
@@ -144,7 +143,7 @@ class TestVLCPlayerService:
     @pytest.mark.asyncio
     async def test_play_sound_file_not_found(
         self, vlc_service, sample_sound,
-    ):
+    ) -> None:
         """Test sound playback when file doesn't exist."""
         # Mock the file path utility to return a non-existent path
         with patch("app.services.vlc_player.get_sound_file_path") as mock_get_path:
@@ -160,7 +159,7 @@ class TestVLCPlayerService:
     @patch("app.services.vlc_player.asyncio.create_subprocess_exec")
     async def test_play_sound_subprocess_error(
         self, mock_subprocess, vlc_service, sample_sound,
-    ):
+    ) -> None:
         """Test sound playback when subprocess fails."""
         # Mock the file path utility to return an existing path
         with patch("app.services.vlc_player.get_sound_file_path") as mock_get_path:
@@ -177,7 +176,7 @@ class TestVLCPlayerService:
 
     @pytest.mark.asyncio
     @patch("app.services.vlc_player.asyncio.create_subprocess_exec")
-    async def test_stop_all_vlc_instances_success(self, mock_subprocess, vlc_service):
+    async def test_stop_all_vlc_instances_success(self, mock_subprocess, vlc_service) -> None:
         """Test successful stopping of all VLC instances."""
         # Mock pgrep process (find VLC processes)
         mock_find_process = Mock()
@@ -214,7 +213,7 @@ class TestVLCPlayerService:
     @patch("app.services.vlc_player.asyncio.create_subprocess_exec")
     async def test_stop_all_vlc_instances_no_processes(
         self, mock_subprocess, vlc_service,
-    ):
+    ) -> None:
         """Test stopping VLC instances when none are running."""
         # Mock pgrep process (no VLC processes found)
         mock_find_process = Mock()
@@ -234,7 +233,7 @@ class TestVLCPlayerService:
     @patch("app.services.vlc_player.asyncio.create_subprocess_exec")
     async def test_stop_all_vlc_instances_partial_kill(
         self, mock_subprocess, vlc_service,
-    ):
+    ) -> None:
         """Test stopping VLC instances when some processes remain."""
         # Mock pgrep process (find VLC processes)
         mock_find_process = Mock()
@@ -267,7 +266,7 @@ class TestVLCPlayerService:
 
     @pytest.mark.asyncio
     @patch("app.services.vlc_player.asyncio.create_subprocess_exec")
-    async def test_stop_all_vlc_instances_error(self, mock_subprocess, vlc_service):
+    async def test_stop_all_vlc_instances_error(self, mock_subprocess, vlc_service) -> None:
         """Test stopping VLC instances when an error occurs."""
         # Mock subprocess exception
         mock_subprocess.side_effect = Exception("Command failed")
@@ -280,7 +279,7 @@ class TestVLCPlayerService:
         assert "error" in result
         assert result["message"] == "Failed to stop VLC processes"
 
-    def test_get_vlc_player_service_singleton(self):
+    def test_get_vlc_player_service_singleton(self) -> None:
         """Test that get_vlc_player_service returns the same instance."""
         with patch("app.services.vlc_player.VLCPlayerService") as mock_service_class:
             mock_instance = Mock()
@@ -306,7 +305,7 @@ class TestVLCPlayerService:
     @patch("app.services.vlc_player.asyncio.create_subprocess_exec")
     async def test_play_sound_with_play_count_tracking(
         self, mock_subprocess, vlc_service_with_db, sample_sound,
-    ):
+    ) -> None:
         """Test sound playback with play count tracking."""
         # Mock subprocess
         mock_process = Mock()
@@ -371,7 +370,7 @@ class TestVLCPlayerService:
                         # mocking or using a real async test framework setup
 
     @pytest.mark.asyncio
-    async def test_record_play_count_success(self, vlc_service_with_db):
+    async def test_record_play_count_success(self, vlc_service_with_db) -> None:
         """Test successful play count recording."""
         # Mock session and repositories
         mock_session = AsyncMock()
@@ -436,14 +435,14 @@ class TestVLCPlayerService:
                     )
 
     @pytest.mark.asyncio
-    async def test_record_play_count_no_session_factory(self, vlc_service):
+    async def test_record_play_count_no_session_factory(self, vlc_service) -> None:
         """Test play count recording when no session factory is available."""
         # This should not raise an error and should log a warning
         await vlc_service._record_play_count(1, "Test Sound")
         # The method should return early without doing anything
 
     @pytest.mark.asyncio
-    async def test_record_play_count_always_creates_record(self, vlc_service_with_db):
+    async def test_record_play_count_always_creates_record(self, vlc_service_with_db) -> None:
         """Test play count recording always creates a new SoundPlayed record."""
         # Mock session and repositories
         mock_session = AsyncMock()
@@ -493,7 +492,7 @@ class TestVLCPlayerService:
                         # Verify commit happened
                         mock_session.commit.assert_called_once()
 
-    def test_uses_shared_sound_path_utility(self, vlc_service, sample_sound):
+    def test_uses_shared_sound_path_utility(self, vlc_service, sample_sound) -> None:
         """Test that VLC service uses the shared sound path utility."""
         with patch("app.services.vlc_player.get_sound_file_path") as mock_path:
             mock_file_path = Mock(spec=Path)

tests/utils/test_cookies.py

@@ -1,5 +1,4 @@
 """Tests for cookie utilities."""
-# ruff: noqa: ANN201, E501
 
 from app.utils.cookies import extract_access_token_from_cookies, parse_cookies
 

tests/utils/test_credit_decorators.py

@@ -1,5 +1,4 @@
 """Tests for credit decorators."""
-# ruff: noqa: ARG001, ANN001, E501, PT012
 
 from collections.abc import Callable
 from typing import Never