style: auto-fix lint violations from enhanced ruff rules

1 files changed, 11 insertions, 10 deletions

diff --git a/shared/tests/test_db.py b/shared/tests/test_db.py
index 439a66e..b44a713 100644
--- a/shared/tests/test_db.py
+++ b/shared/tests/test_db.py
@@ -1,10 +1,11 @@
 """Tests for the SQLAlchemy async database layer."""
 
-import pytest
+from datetime import UTC, datetime
 from decimal import Decimal
-from datetime import datetime, timezone
 from unittest.mock import AsyncMock, MagicMock, patch
 
+import pytest
+
 
 def make_candle():
     from shared.models import Candle
@@ -12,7 +13,7 @@ def make_candle():
     return Candle(
         symbol="AAPL",
         timeframe="1m",
-        open_time=datetime(2024, 1, 1, tzinfo=timezone.utc),
+        open_time=datetime(2024, 1, 1, tzinfo=UTC),
         open=Decimal("50000"),
         high=Decimal("51000"),
         low=Decimal("49500"),
@@ -22,7 +23,7 @@ def make_candle():
 
 
 def make_signal():
-    from shared.models import Signal, OrderSide
+    from shared.models import OrderSide, Signal
 
     return Signal(
         id="sig-1",
@@ -32,12 +33,12 @@ def make_signal():
         price=Decimal("50000"),
         quantity=Decimal("0.1"),
         reason="Golden cross",
-        created_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
+        created_at=datetime(2024, 1, 1, tzinfo=UTC),
     )
 
 
 def make_order():
-    from shared.models import Order, OrderSide, OrderType, OrderStatus
+    from shared.models import Order, OrderSide, OrderStatus, OrderType
 
     return Order(
         id="ord-1",
@@ -48,7 +49,7 @@ def make_order():
         price=Decimal("50000"),
         quantity=Decimal("0.1"),
         status=OrderStatus.PENDING,
-        created_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
+        created_at=datetime(2024, 1, 1, tzinfo=UTC),
     )
 
 
@@ -259,7 +260,7 @@ class TestUpdateOrderStatus:
 
         db._session_factory = MagicMock(return_value=mock_session)
 
-        filled = datetime(2024, 1, 2, tzinfo=timezone.utc)
+        filled = datetime(2024, 1, 2, tzinfo=UTC)
         await db.update_order_status("ord-1", OrderStatus.FILLED, filled)
 
         mock_session.execute.assert_awaited_once()
@@ -278,7 +279,7 @@ class TestGetCandles:
         mock_row._mapping = {
             "symbol": "AAPL",
             "timeframe": "1m",
-            "open_time": datetime(2024, 1, 1, tzinfo=timezone.utc),
+            "open_time": datetime(2024, 1, 1, tzinfo=UTC),
             "open": Decimal("50000"),
             "high": Decimal("51000"),
             "low": Decimal("49500"),
@@ -444,7 +445,7 @@ class TestGetPortfolioSnapshots:
         mock_row.total_value = Decimal("10000")
         mock_row.realized_pnl = Decimal("0")
         mock_row.unrealized_pnl = Decimal("500")
-        mock_row.snapshot_at = datetime(2024, 1, 1, tzinfo=timezone.utc)
+        mock_row.snapshot_at = datetime(2024, 1, 1, tzinfo=UTC)
 
         mock_result = MagicMock()
         mock_result.scalars.return_value.all.return_value = [mock_row]