test_dates.py 文件源码

def check_datetime_tz(self, str_offset, offset):
        from datetime import datetime, timedelta
        base = datetime(2007, 1, 1, 13, 30, 29)
        base_str = '2007-01-01 13:30:29'

        value = self.DATETIME(base_str + str_offset, self.curs)

        # Value has time zone info and correct UTC offset.
        self.assertNotEqual(value.tzinfo, None),
        self.assertEqual(value.utcoffset(), timedelta(seconds=offset))

        # Datetime is correct.
        self.assertEqual(value.replace(tzinfo=None), base)

        # Conversion to UTC produces the expected offset.
        UTC = FixedOffsetTimezone(0, "UTC")
        value_utc = value.astimezone(UTC).replace(tzinfo=None)
        self.assertEqual(base - value_utc, timedelta(seconds=offset))