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Test that new_timezone can return the UTC singleton (gh-5318)

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Paul Ganssle 2018-02-22 15:15:32 -05:00 • committed by Alexander Belopolsky
parent 48e8c82fc6
commit a049f5790e
2 changed files with 46 additions and 0 deletions
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22
Lib/test/datetimetester.py
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@ -5489,6 +5489,28 @@ class CapiTest(unittest.TestCase):
self.assertEqual(dt1.astimezone(timezone.utc), dt_utc)
def test_timezones_offset_zero(self):
utc0, utc1, non_utc = _testcapi.get_timezones_offset_zero()
with self.subTest(testname="utc0"):
self.assertIs(utc0, timezone.utc)
with self.subTest(testname="utc1"):
self.assertIs(utc1, timezone.utc)
with self.subTest(testname="non_utc"):
self.assertIsNot(non_utc, timezone.utc)
non_utc_exp = timezone(timedelta(hours=0), "")
self.assertEqual(non_utc, non_utc_exp)
dt1 = datetime(2000, 2, 4, tzinfo=non_utc)
dt2 = datetime(2000, 2, 4, tzinfo=non_utc_exp)
self.assertEqual(dt1, dt2)
self.assertEqual(dt1.tzname(), dt2.tzname())
def test_check_date(self):
class DateSubclass(date):
pass