fix: Add missing commas in function calls and improve code formatting

tests/services/test_credit.py

@@ -409,7 +409,7 @@ class TestCreditService:
 
     @pytest.mark.asyncio
     async def test_recharge_user_credits_success(
-        self, credit_service, sample_user
+        self, credit_service, sample_user,
     ) -> None:
         """Test successful credit recharge for a user."""
         mock_session = credit_service.db_session_factory()

tests/services/test_dashboard.py

@@ -1,6 +1,6 @@
 """Tests for dashboard service."""
 
-from datetime import UTC, datetime, timedelta
+from datetime import UTC, datetime
 from unittest.mock import AsyncMock, Mock, patch
 
 import pytest
@@ -63,7 +63,7 @@ class TestDashboardService:
     ):
         """Test getting soundboard statistics with exception."""
         mock_sound_repository.get_soundboard_statistics = AsyncMock(
-            side_effect=Exception("Database error")
+            side_effect=Exception("Database error"),
         )
 
         with pytest.raises(Exception, match="Database error"):
@@ -105,7 +105,7 @@ class TestDashboardService:
     ):
         """Test getting track statistics with exception."""
         mock_sound_repository.get_track_statistics = AsyncMock(
-            side_effect=Exception("Database error")
+            side_effect=Exception("Database error"),
         )
 
         with pytest.raises(Exception, match="Database error"):
@@ -198,7 +198,7 @@ class TestDashboardService:
     ):
         """Test getting top sounds with exception."""
         mock_sound_repository.get_top_sounds = AsyncMock(
-            side_effect=Exception("Database error")
+            side_effect=Exception("Database error"),
         )
 
         with pytest.raises(Exception, match="Database error"):
@@ -274,4 +274,4 @@ class TestDashboardService:
     def test_get_date_filter_unknown_period(self, dashboard_service):
         """Test date filter for unknown period."""
         result = dashboard_service._get_date_filter("unknown_period")
-        assert result is None
+        assert result is None

tests/services/test_scheduler.py

@@ -25,9 +25,9 @@ class TestSchedulerService:
     @pytest.mark.asyncio
     async def test_start_scheduler(self, scheduler_service) -> None:
         """Test starting the scheduler service."""
-        with patch.object(scheduler_service.scheduler, 'add_job') as mock_add_job, \
-             patch.object(scheduler_service.scheduler, 'start') as mock_start:
-            
+        with patch.object(scheduler_service.scheduler, "add_job") as mock_add_job, \
+             patch.object(scheduler_service.scheduler, "start") as mock_start:
+
             await scheduler_service.start()
 
             # Verify job was added
@@ -47,7 +47,7 @@ class TestSchedulerService:
     @pytest.mark.asyncio
     async def test_stop_scheduler(self, scheduler_service) -> None:
         """Test stopping the scheduler service."""
-        with patch.object(scheduler_service.scheduler, 'shutdown') as mock_shutdown:
+        with patch.object(scheduler_service.scheduler, "shutdown") as mock_shutdown:
             await scheduler_service.stop()
             mock_shutdown.assert_called_once()
 
@@ -61,7 +61,7 @@ class TestSchedulerService:
             "total_credits_added": 500,
         }
 
-        with patch.object(scheduler_service.credit_service, 'recharge_all_users_credits') as mock_recharge:
+        with patch.object(scheduler_service.credit_service, "recharge_all_users_credits") as mock_recharge:
             mock_recharge.return_value = mock_stats
 
             await scheduler_service._daily_credit_recharge()
@@ -71,10 +71,10 @@ class TestSchedulerService:
     @pytest.mark.asyncio
     async def test_daily_credit_recharge_failure(self, scheduler_service) -> None:
         """Test daily credit recharge task with failure."""
-        with patch.object(scheduler_service.credit_service, 'recharge_all_users_credits') as mock_recharge:
+        with patch.object(scheduler_service.credit_service, "recharge_all_users_credits") as mock_recharge:
             mock_recharge.side_effect = Exception("Database error")
 
             # Should not raise exception, just log it
             await scheduler_service._daily_credit_recharge()
 
-            mock_recharge.assert_called_once()
+            mock_recharge.assert_called_once()