test_bar_data.py 文件源码

def test_day_before_assets_trading(self):
        # use the day before self.bcolz_daily_bar_days[0]
        minute = self.get_last_minute_of_session(
            self.trading_calendar.previous_session_label(
                self.equity_daily_bar_days[0]
            )
        )

        bar_data = self.create_bardata(
            simulation_dt_func=lambda: minute,
        )
        self.check_internal_consistency(bar_data)

        self.assertFalse(bar_data.can_trade(self.ASSET1))
        self.assertFalse(bar_data.can_trade(self.ASSET2))

        self.assertFalse(bar_data.is_stale(self.ASSET1))
        self.assertFalse(bar_data.is_stale(self.ASSET2))

        for field in ALL_FIELDS:
            for asset in self.ASSETS:
                asset_value = bar_data.current(asset, field)

                if field in OHLCP:
                    self.assertTrue(np.isnan(asset_value))
                elif field == "volume":
                    self.assertEqual(0, asset_value)
                elif field == "last_traded":
                    self.assertTrue(asset_value is pd.NaT)