style: auto-fix lint violations from enhanced ruff rules

1 files changed, 6 insertions, 6 deletions

diff --git a/services/strategy-engine/tests/test_vwap_strategy.py b/services/strategy-engine/tests/test_vwap_strategy.py
index 2c34b01..078d0cf 100644
--- a/services/strategy-engine/tests/test_vwap_strategy.py
+++ b/services/strategy-engine/tests/test_vwap_strategy.py
@@ -1,11 +1,11 @@
 """Tests for the VWAP strategy."""
 
-from datetime import datetime, timezone
+from datetime import UTC, datetime
 from decimal import Decimal
 
+from strategies.vwap_strategy import VwapStrategy
 
 from shared.models import Candle, OrderSide
-from strategies.vwap_strategy import VwapStrategy
 
 
 def make_candle(
@@ -20,7 +20,7 @@ def make_candle(
     if low is None:
         low = close
     if open_time is None:
-        open_time = datetime(2024, 1, 1, tzinfo=timezone.utc)
+        open_time = datetime(2024, 1, 1, tzinfo=UTC)
     return Candle(
         symbol="AAPL",
         timeframe="1m",
@@ -111,11 +111,11 @@ def test_vwap_daily_reset():
     """Candles from two different dates cause VWAP to reset."""
     strategy = _configured_strategy()
 
-    day1 = datetime(2024, 1, 1, tzinfo=timezone.utc)
-    day2 = datetime(2024, 1, 2, tzinfo=timezone.utc)
+    day1 = datetime(2024, 1, 1, tzinfo=UTC)
+    day2 = datetime(2024, 1, 2, tzinfo=UTC)
 
     # Feed 35 candles on day 1 to build VWAP state
-    for i in range(35):
+    for _i in range(35):
         strategy.on_candle(make_candle(100.0, high=101.0, low=99.0, open_time=day1))
 
     # Verify state is built up