def test_constructor(self) -> None:
dtz = gettz('America/Los_Angeles')
ddt = datetime(2000, 1, 2, 3, 4, 5, tzinfo=dtz)
atz = agettz('America/Los_Angeles')
adt = datetime(2000, 1, 2, 3, 4, 5, tzinfo=atz)
self.assertEqual(ddt.year, adt.year)
self.assertEqual(ddt.month, adt.month)
self.assertEqual(ddt.day, adt.day)
self.assertEqual(ddt.hour, adt.hour)
self.assertEqual(ddt.minute, adt.minute)
self.assertEqual(ddt.second, adt.second)
self.assertEqual(ddt.year, adt.year)
self.assertEqual(ddt.timestamp(), adt.timestamp())
ddt_utcoffset = ddt.utcoffset()
assert (ddt_utcoffset is not None)
adt_utcoffset = adt.utcoffset()
assert (adt_utcoffset is not None)
self.assertEqual(
ddt_utcoffset.total_seconds(),
adt_utcoffset.total_seconds(),
)
assert (ddt.tzinfo is not None)
assert (adt.tzinfo is not None)
self.assertEqual(ddt.tzinfo.tzname(ddt), adt.tzinfo.tzname(adt))
def test_before_spring_forward(self) -> None:
tz = agettz('America/Los_Angeles')
# zs = tz.zone_specifier()
# One second before DST shift, 01:59:59 UTC-8
epoch_seconds = 7984799
unix_seconds = epoch_seconds + SECONDS_SINCE_UNIX_EPOCH
dtu = datetime.fromtimestamp(unix_seconds, tz=timezone.utc)
# Date from epoch seconds.
dtt = dtu.astimezone(tz)
self.assertEqual(unix_seconds, dtt.timestamp())
self.assertEqual(2000, dtt.year)
self.assertEqual(4, dtt.month)
self.assertEqual(2, dtt.day)
self.assertEqual(1, dtt.hour)
self.assertEqual(59, dtt.minute)
self.assertEqual(59, dtt.second)
# Date from component
dtc = datetime(2000, 4, 2, 1, 59, 59, tzinfo=tz)
self.assertEqual(unix_seconds, dtc.timestamp())
self.assertEqual(2000, dtc.year)
self.assertEqual(4, dtc.month)
self.assertEqual(2, dtc.day)
self.assertEqual(1, dtc.hour)
self.assertEqual(59, dtc.minute)
self.assertEqual(59, dtc.second)
self.assertEqual(timedelta(hours=-8), tz.utcoffset(dtc))
self.assertEqual(timedelta(hours=0), tz.dst(dtc))
self.assertEqual(dtc, dtt)
def test_after_spring_forward(self) -> None:
tz = agettz('America/Los_Angeles')
# zs = tz.zone_specifier()
# Right after DST forward shift, 03:00:00 UTC-7
epoch_seconds = 7984800
unix_seconds = epoch_seconds + SECONDS_SINCE_UNIX_EPOCH
dtu = datetime.fromtimestamp(unix_seconds, tz=timezone.utc)
# Date from epoch seconds
dtt = dtu.astimezone(tz)
self.assertEqual(unix_seconds, dtt.timestamp())
self.assertEqual(2000, dtt.year)
self.assertEqual(4, dtt.month)
self.assertEqual(2, dtt.day)
self.assertEqual(3, dtt.hour)
self.assertEqual(0, dtt.minute)
self.assertEqual(0, dtt.second)
# Date from component
dtc = datetime(2000, 4, 2, 3, 0, 0, tzinfo=tz)
self.assertEqual(unix_seconds, int(dtc.timestamp()))
self.assertEqual(2000, dtc.year)
self.assertEqual(4, dtc.month)
self.assertEqual(2, dtc.day)
self.assertEqual(3, dtc.hour)
self.assertEqual(0, dtc.minute)
self.assertEqual(0, dtc.second)
self.assertEqual(timedelta(hours=-7), tz.utcoffset(dtc))
self.assertEqual(timedelta(hours=1), tz.dst(dtc))
self.assertEqual(dtc, dtt)
def test_way_after_fall_back(self) -> None:
tz = agettz('America/Los_Angeles')
# zs = tz.zone_specifier()
# Just after DST fall back 02:00:00 UTC-8
epoch_seconds = 26125200 + 3600
unix_seconds = epoch_seconds + SECONDS_SINCE_UNIX_EPOCH
dtu = datetime.fromtimestamp(unix_seconds, tz=timezone.utc)
# Date from epoch seconds.
dtt = dtu.astimezone(tz)
self.assertEqual(unix_seconds, dtt.timestamp())
self.assertEqual(2000, dtt.year)
self.assertEqual(10, dtt.month)
self.assertEqual(29, dtt.day)
self.assertEqual(2, dtt.hour)
self.assertEqual(0, dtt.minute)
self.assertEqual(0, dtt.second)
# Date from component
dtc = datetime(2000, 10, 29, 2, 0, 0, tzinfo=tz)
self.assertEqual(unix_seconds, dtc.timestamp())
self.assertEqual(2000, dtc.year)
self.assertEqual(10, dtc.month)
self.assertEqual(29, dtc.day)
self.assertEqual(2, dtc.hour)
self.assertEqual(0, dtc.minute)
self.assertEqual(0, dtc.second)
self.assertEqual(timedelta(hours=-8), tz.utcoffset(dtc))
self.assertEqual(timedelta(hours=0), tz.dst(dtc))
self.assertEqual(dtc, dtt)
def test_before_fall_back(self) -> None:
tz = agettz('America/Los_Angeles')
# One second before DST shift, 01:59:59 UTC-7
epoch_seconds = 26125199
unix_seconds = epoch_seconds + SECONDS_SINCE_UNIX_EPOCH
dtu = datetime.fromtimestamp(unix_seconds, tz=timezone.utc)
# Date from epoch seconds. By default, should match the 1st transition.
dtt = dtu.astimezone(tz)
self.assertEqual(epoch_seconds,
int(dtt.timestamp()) - SECONDS_SINCE_UNIX_EPOCH)
self.assertEqual(2000, dtt.year)
self.assertEqual(10, dtt.month)
self.assertEqual(29, dtt.day)
self.assertEqual(1, dtt.hour)
self.assertEqual(59, dtt.minute)
self.assertEqual(59, dtt.second)
self.assertEqual("PDT", dtt.tzname())
self.assertEqual(timedelta(hours=-7), dtt.utcoffset())
self.assertEqual(timedelta(hours=1), dtt.dst())
# Date from component. With fold=0, should match the 1st transition.
dtc = datetime(2000, 10, 29, 1, 59, 59, tzinfo=tz)
self.assertEqual(unix_seconds, int(dtc.timestamp()))
self.assertEqual(2000, dtc.year)
self.assertEqual(10, dtc.month)
self.assertEqual(29, dtc.day)
self.assertEqual(1, dtc.hour)
self.assertEqual(59, dtc.minute)
self.assertEqual(59, dtc.second)
self.assertEqual("PDT", dtc.tzname())
self.assertEqual(timedelta(hours=-7), dtc.utcoffset())
self.assertEqual(timedelta(hours=1), dtc.dst())
# Test the second transition with fold=1
dtc = datetime(2000, 10, 29, 1, 59, 59, tzinfo=tz, fold=1)
self.assertEqual(unix_seconds + 3600, int(dtc.timestamp()))
self.assertEqual(2000, dtc.year)
self.assertEqual(10, dtc.month)
self.assertEqual(29, dtc.day)
self.assertEqual(1, dtc.hour)
self.assertEqual(59, dtc.minute)
self.assertEqual(59, dtc.second)
self.assertEqual("PST", dtc.tzname())
self.assertEqual(timedelta(hours=-8), dtc.utcoffset())
self.assertEqual(timedelta(hours=0), dtc.dst())
def test_before_fall_back(self) -> None:
tz = agettz('America/Los_Angeles')
# zs = tz.zone_specifier()
# One second before DST shift, 01:59:59 UTC-7
epoch_seconds = 26125199
unix_seconds = epoch_seconds + SECONDS_SINCE_UNIX_EPOCH
dtu = datetime.fromtimestamp(unix_seconds, tz=timezone.utc)
# Date from epoch seconds.
dtt = dtu.astimezone(tz)
# Round-trip does not work.
# self.assertEqual(unix_seconds, dtt.timestamp())
self.assertEqual(2000, dtt.year)
self.assertEqual(10, dtt.month)
self.assertEqual(29, dtt.day)
self.assertEqual(1, dtt.hour)
self.assertEqual(59, dtt.minute)
self.assertEqual(59, dtt.second)
def test_constructor(self) -> None:
atz = agettz('America/Los_Angeles')
adt = datetime(2000, 1, 2, 3, 4, 5, tzinfo=atz)
self.assertEqual(2000, adt.year)
self.assertEqual(1, adt.month)
self.assertEqual(2, adt.day)
self.assertEqual(3, adt.hour)
self.assertEqual(4, adt.minute)
self.assertEqual(5, adt.second)
# date +%s -d '2000-01-02T03:04:05-08:00'
self.assertEqual(946811045, int(adt.timestamp()))
adt_utcoffset = adt.utcoffset()
assert (adt_utcoffset is not None)
self.assertEqual(-8 * 3600, adt_utcoffset.total_seconds())
assert (adt.tzinfo is not None)
self.assertEqual("PST", adt.tzinfo.tzname(adt))
def test_2000_03_26_after_fall_back(self) -> None:
tz = agettz('Australia/Sydney')
epoch_seconds = 7315200
unix_seconds = epoch_seconds + SECONDS_SINCE_UNIX_EPOCH
dtu = datetime.fromtimestamp(unix_seconds, tz=timezone.utc)
# print_zs_at_dt(tz, dtu)
# Date from epoch seconds.
dtt = dtu.astimezone(tz)
self.assertEqual(epoch_seconds,
int(dtt.timestamp()) - SECONDS_SINCE_UNIX_EPOCH)
self.assertEqual(2000, dtt.year)
self.assertEqual(3, dtt.month)
self.assertEqual(26, dtt.day)
self.assertEqual(2, dtt.hour)
self.assertEqual(0, dtt.minute)
self.assertEqual(0, dtt.second)
self.assertEqual("AEST", dtt.tzname())
self.assertEqual(timedelta(hours=10), dtt.utcoffset())
self.assertEqual(timedelta(hours=0), dtt.dst())
# Date from component
dtc = datetime(2000, 3, 26, 2, 0, 0, tzinfo=tz, fold=1)
self.assertEqual(unix_seconds, int(dtc.timestamp()))
self.assertEqual(2000, dtc.year)
self.assertEqual(3, dtc.month)
self.assertEqual(26, dtc.day)
self.assertEqual(2, dtc.hour)
self.assertEqual(0, dtc.minute)
self.assertEqual(0, dtc.second)
self.assertEqual("AEST", dtc.tzname())
self.assertEqual(timedelta(hours=10), dtc.utcoffset())
self.assertEqual(timedelta(hours=0), dtc.dst())
self.assertEqual(dtc, dtt)
def test_2006_01_01(self) -> None:
tz = agettz('Africa/Tunis')
epoch_seconds = 189385200
unix_seconds = epoch_seconds + SECONDS_SINCE_UNIX_EPOCH
dtu = datetime.fromtimestamp(unix_seconds, tz=timezone.utc)
# print_zs_at_dt(tz, dtu)
# Date from epoch seconds.
dtt = dtu.astimezone(tz)
self.assertEqual(epoch_seconds,
int(dtt.timestamp()) - SECONDS_SINCE_UNIX_EPOCH)
self.assertEqual(2006, dtt.year)
self.assertEqual(1, dtt.month)
self.assertEqual(1, dtt.day)
self.assertEqual(0, dtt.hour)
self.assertEqual(0, dtt.minute)
self.assertEqual(0, dtt.second)
self.assertEqual("CET", dtt.tzname())
self.assertEqual(timedelta(hours=1), dtt.utcoffset())
self.assertEqual(timedelta(hours=0), dtt.dst())
# Date from component
dtc = datetime(2006, 1, 1, 0, 0, 0, tzinfo=tz)
self.assertEqual(unix_seconds, int(dtc.timestamp()))
self.assertEqual(2006, dtc.year)
self.assertEqual(1, dtc.month)
self.assertEqual(1, dtc.day)
self.assertEqual(0, dtc.hour)
self.assertEqual(0, dtc.minute)
self.assertEqual(0, dtc.second)
self.assertEqual("CET", dtc.tzname())
self.assertEqual(timedelta(hours=1), dtc.utcoffset())
self.assertEqual(timedelta(hours=0), dtc.dst())
self.assertEqual(dtc, dtt)
def test_after_fall_back(self) -> None:
tz = agettz('America/Los_Angeles')
# Just after DST fall back 01:00:00 UTC-8
epoch_seconds = 26125200
unix_seconds = epoch_seconds + SECONDS_SINCE_UNIX_EPOCH
dtu = datetime.fromtimestamp(unix_seconds, tz=timezone.utc)
# Date from epoch seconds.
dtt = dtu.astimezone(tz)
self.assertEqual(epoch_seconds,
int(dtt.timestamp()) - SECONDS_SINCE_UNIX_EPOCH)
self.assertEqual(2000, dtt.year)
self.assertEqual(10, dtt.month)
self.assertEqual(29, dtt.day)
self.assertEqual(1, dtt.hour)
self.assertEqual(0, dtt.minute)
self.assertEqual(0, dtt.second)
self.assertEqual("PST", dtt.tzname())
self.assertEqual(timedelta(hours=-8), dtt.utcoffset())
self.assertEqual(timedelta(hours=0), dtt.dst())
# Date from component
dtc = datetime(2000, 10, 29, 1, 0, 0, tzinfo=tz, fold=1)
self.assertEqual(unix_seconds, int(dtc.timestamp()))
self.assertEqual(2000, dtc.year)
self.assertEqual(10, dtc.month)
self.assertEqual(29, dtc.day)
self.assertEqual(1, dtc.hour)
self.assertEqual(0, dtc.minute)
self.assertEqual(0, dtc.second)
self.assertEqual("PST", dtc.tzname())
self.assertEqual(timedelta(hours=-8), dtc.utcoffset())
self.assertEqual(timedelta(hours=0), dtc.dst())
self.assertEqual(dtc, dtt)
