Improve special testcase

tests/persistence/test_persistence.py

@@ -2390,10 +2390,11 @@ def test_recalc_trade_from_orders_kucoin():
 
     trade.orders.append(order3)
     trade.update_trade(order3)
-    # assert trade.amount == o1_amount + o2_amount
     assert trade.is_open is False
+    # Trade closed correctly - but left a minimal amount.
     assert trade.amount == 8e-09
     assert trade.close_profit_abs == 3.90069871
+    assert trade.close_profit == 0.00566035
 
 
 @pytest.mark.parametrize('is_short', [True, False])