Improve backtest performance

tests/conftest.py

@@ -191,7 +191,7 @@ def create_mock_trades(fee, use_db: bool = True):
         if use_db:
             Trade.session.add(trade)
         else:
-            LocalTrade.trades.append(trade)
+            LocalTrade.add_bt_trade(trade)
 
     # Simulate dry_run entries
     trade = mock_trade_1(fee)

tests/test_persistence.py

@@ -1196,6 +1196,6 @@ def test_Trade_object_idem():
     # Fails if only a column is added without corresponding parent field
     for item in localtrade:
         if (not item.startswith('__')
-                and item not in ('trades', )
+                and item not in ('trades', 'trades_open', 'total_profit')
                 and type(getattr(LocalTrade, item)) not in (property, FunctionType)):
             assert item in trade