行情区图表：成交量、十字线 OHLCV、可视高低点、日线满 500 根

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/test_hub_kline_store.py

@@ -15,7 +15,7 @@ from hub_kline_store import (
     upsert_bars,
     window_start_ms,
 )
-from hub_ohlcv_lib import TIMEFRAME_MS
+from hub_ohlcv_lib import TIMEFRAME_MS, chart_fetch_start_ms, window_start_ms
 
 
 class TestHubKlineStore(unittest.TestCase):
@@ -28,7 +28,18 @@ class TestHubKlineStore(unittest.TestCase):
 
     def test_bar_limits(self):
         self.assertEqual(bar_limit_for_timeframe("5m"), 1000)
+        self.assertEqual(bar_limit_for_timeframe("1h"), 1000)
         self.assertEqual(bar_limit_for_timeframe("1d"), 500)
+        self.assertEqual(bar_limit_for_timeframe("1w"), 500)
+
+    def test_chart_fetch_window_exceeds_retention(self):
+        import time
+
+        now = int(time.time() * 1000)
+        need = bar_limit_for_timeframe("1d")
+        fetch_start = chart_fetch_start_ms("1d", need, now)
+        db_start = window_start_ms("1d", need, retention_days(), now)
+        self.assertLess(fetch_start, db_start)
 
     def test_purge_retention(self):
         import time