test_tz.py 文件源码

def testGapNegativeUTCOffset(self):
        # Test that we don't have a problem around gaps.
        tzname = 'Eastern Standard Time'
        args = self.get_args(tzname)

        # Calling fromutc() alters the tzfile object
        with self.context(tzname):
            TOR = self.tzclass(*args)
            TOR0 = self.tzclass(*args)
            TOR1 = self.tzclass(*args)

            t_n, t0_u, t1_u = self.get_utc_transitions(TOR, 2011, True)

            # Using fresh tzfiles
            t0 = t0_u.astimezone(TOR0)
            t1 = t1_u.astimezone(TOR1)

            self.assertEqual(t0.replace(tzinfo=None),
                             t_n)

            self.assertEqual(t1.replace(tzinfo=None),
                             t_n + timedelta(hours=2))

            self.assertNotEqual(t0, t1)
            self.assertEqual(t0.utcoffset(), timedelta(hours=-5.0))
            self.assertEqual(t1.utcoffset(), timedelta(hours=-4.0))