def test_policies() -> None:
getzone = lambda dt: getattr(dt.tzinfo, 'zone')
naive = D('20170730 10:00:00')
# actual timezone at the time
assert getzone(TZ.localize(naive)) == 'Europe/Rome'
z = pytz.timezone('America/New_York')
aware = z.localize(naive)
assert getzone(TZ.localize(aware)) == 'America/New_York'
assert getzone(TZ.localize(aware, policy='convert')) == 'Europe/Rome'
with pytest.raises(RuntimeError):
assert TZ.localize(aware, policy='throw')
def test_past() -> None:
# should fallback to the home location provider
dt = D('20000101 12:34:45')
dt = TZ.localize(dt)
tz = dt.tzinfo
assert tz is not None
assert getattr(tz, 'zone') == 'America/New_York'
def test_future() -> None:
fut = datetime.now() + timedelta(days=100)
# shouldn't crash at least
assert TZ.localize(fut) is not None