def test_timezones(self):
# Saving and updating with timezone-aware datetime Python objects.
# Regression test for #10443.
# The idea is that all these creations and saving should work without
# crashing. It's not rocket science.
dt1 = datetime.datetime(2008,
8,
31,
16,
20,
tzinfo=get_fixed_timezone(600))
dt2 = datetime.datetime(2008,
8,
31,
17,
20,
tzinfo=get_fixed_timezone(600))
obj = Article.objects.create(headline="A headline",
pub_date=dt1,
article_text="foo")
obj.pub_date = dt2
obj.save()
self.assertEqual(
Article.objects.filter(headline="A headline").update(pub_date=dt1),
1)
def test_parse_datetime(self):
valid_inputs = (
('2012-04-23T09:15:00', datetime(2012, 4, 23, 9, 15)),
('2012-4-9 4:8:16', datetime(2012, 4, 9, 4, 8, 16)),
('2012-04-23T09:15:00Z',
datetime(2012, 4, 23, 9, 15, 0, 0, get_fixed_timezone(0))),
('2012-4-9 4:8:16-0320',
datetime(2012, 4, 9, 4, 8, 16, 0, get_fixed_timezone(-200))),
('2012-04-23T10:20:30.400+02:30',
datetime(2012, 4, 23, 10, 20, 30, 400000,
get_fixed_timezone(150))),
('2012-04-23T10:20:30.400+02',
datetime(2012, 4, 23, 10, 20, 30, 400000,
get_fixed_timezone(120))),
('2012-04-23T10:20:30.400-02',
datetime(2012, 4, 23, 10, 20, 30, 400000,
get_fixed_timezone(-120))),
)
for source, expected in valid_inputs:
with self.subTest(source=source):
self.assertEqual(parse_datetime(source), expected)
# Invalid inputs
self.assertIsNone(parse_datetime('20120423091500'))
with self.assertRaises(ValueError):
parse_datetime('2012-04-56T09:15:90')
def parse_datetime(value):
"""Parse a string and return a datetime.datetime.
This function supports time zone offsets. When the input contains one,
the output uses a timezone with a fixed offset from UTC.
Raise ValueError if the input is well formatted but not a valid datetime.
Return None if the input isn't well formatted.
"""
match = datetime_re.match(value)
if match:
kw = match.groupdict()
kw['microsecond'] = kw['microsecond'] and kw['microsecond'].ljust(6, '0')
tzinfo = kw.pop('tzinfo')
if tzinfo == 'Z':
tzinfo = utc
elif tzinfo is not None:
offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
offset = 60 * int(tzinfo[1:3]) + offset_mins
if tzinfo[0] == '-':
offset = -offset
tzinfo = get_fixed_timezone(offset)
kw = {k: int(v) for k, v in kw.items() if v is not None}
kw['tzinfo'] = tzinfo
return datetime.datetime(**kw)
def test_timezones(self):
my_birthday = datetime(1979, 7, 8, 22, 00)
summertime = datetime(2005, 10, 30, 1, 00)
wintertime = datetime(2005, 10, 30, 4, 00)
timestamp = datetime(2008, 5, 19, 11, 45, 23, 123456)
# 3h30m to the west of UTC
tz = get_fixed_timezone(-210)
aware_dt = datetime(2009, 5, 16, 5, 30, 30, tzinfo=tz)
if TZ_SUPPORT:
self.assertEqual(dateformat.format(my_birthday, 'O'), '+0100')
self.assertEqual(dateformat.format(my_birthday, 'r'), 'Sun, 8 Jul 1979 22:00:00 +0100')
self.assertEqual(dateformat.format(my_birthday, 'T'), 'CET')
self.assertEqual(dateformat.format(my_birthday, 'e'), '')
self.assertEqual(dateformat.format(aware_dt, 'e'), '-0330')
self.assertEqual(dateformat.format(my_birthday, 'U'), '300315600')
self.assertEqual(dateformat.format(timestamp, 'u'), '123456')
self.assertEqual(dateformat.format(my_birthday, 'Z'), '3600')
self.assertEqual(dateformat.format(summertime, 'I'), '1')
self.assertEqual(dateformat.format(summertime, 'O'), '+0200')
self.assertEqual(dateformat.format(wintertime, 'I'), '0')
self.assertEqual(dateformat.format(wintertime, 'O'), '+0100')
# Ticket #16924 -- We don't need timezone support to test this
self.assertEqual(dateformat.format(aware_dt, 'O'), '-0330')
def test_serialize_datetime(self):
self.assertSerializedEqual(datetime.datetime.utcnow())
self.assertSerializedEqual(datetime.datetime.utcnow)
self.assertSerializedEqual(datetime.datetime.today())
self.assertSerializedEqual(datetime.datetime.today)
self.assertSerializedEqual(datetime.date.today())
self.assertSerializedEqual(datetime.date.today)
self.assertSerializedEqual(datetime.datetime.now().time())
self.assertSerializedEqual(
datetime.datetime(2014, 1, 1, 1, 1, tzinfo=get_default_timezone()))
self.assertSerializedEqual(
datetime.datetime(2013,
12,
31,
22,
1,
tzinfo=get_fixed_timezone(180)))
self.assertSerializedResultEqual(
datetime.datetime(2014, 1, 1, 1, 1),
("datetime.datetime(2014, 1, 1, 1, 1)", {'import datetime'}))
self.assertSerializedResultEqual(
datetime.datetime(2012, 1, 1, 1, 1, tzinfo=utc), (
"datetime.datetime(2012, 1, 1, 1, 1, tzinfo=utc)",
{'import datetime', 'from djmodels.utils.timezone import utc'},
))
def test_datetime_with_tzinfo(self):
tz = get_fixed_timezone(-510)
ltz = get_default_timezone()
dt = make_aware(datetime(2009, 5, 16, 5, 30, 30), ltz)
self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), tz), dt)
self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), ltz), dt)
# astimezone() is safe here because the target timezone doesn't have DST
self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U'))), dt.astimezone(ltz).replace(tzinfo=None))
self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), tz).utctimetuple(), dt.utctimetuple())
self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), ltz).utctimetuple(), dt.utctimetuple())
def test_make_aware_no_tz(self):
self.assertEqual(
timezone.make_aware(datetime.datetime(2011, 9, 1, 13, 20, 30)),
datetime.datetime(2011,
9,
1,
13,
20,
30,
tzinfo=timezone.get_fixed_timezone(-300)))
def test_naturalday_tz(self):
today = datetime.date.today()
tz_one = get_fixed_timezone(-720)
tz_two = get_fixed_timezone(720)
# Can be today or yesterday
date_one = datetime.datetime(today.year,
today.month,
today.day,
tzinfo=tz_one)
naturalday_one = humanize.naturalday(date_one)
# Can be today or tomorrow
date_two = datetime.datetime(today.year,
today.month,
today.day,
tzinfo=tz_two)
naturalday_two = humanize.naturalday(date_two)
# As 24h of difference they will never be the same
self.assertNotEqual(naturalday_one, naturalday_two)
def test_different_timezones(self):
""" When using two different timezones. """
now = datetime.datetime.now()
now_tz = timezone.make_aware(now, timezone.get_default_timezone())
now_tz_i = timezone.localtime(now_tz, timezone.get_fixed_timezone(195))
self.assertEqual(timesince(now), '0\xa0minutes')
self.assertEqual(timesince(now_tz), '0\xa0minutes')
self.assertEqual(timesince(now_tz_i), '0\xa0minutes')
self.assertEqual(timesince(now_tz, now_tz_i), '0\xa0minutes')
self.assertEqual(timeuntil(now), '0\xa0minutes')
self.assertEqual(timeuntil(now_tz), '0\xa0minutes')
self.assertEqual(timeuntil(now_tz_i), '0\xa0minutes')
self.assertEqual(timeuntil(now_tz, now_tz_i), '0\xa0minutes')
def test_fixedoffset_negative_timedelta(self):
delta = datetime.timedelta(hours=-2)
self.assertEqual(
timezone.get_fixed_timezone(delta).utcoffset(None), delta)
import datetime
import pickle
from unittest import mock
import pytz
from djmodels.test import SimpleTestCase, ignore_warnings, override_settings
from djmodels.utils import timezone
from djmodels.utils.deprecation import RemovedInDjango31Warning
CET = pytz.timezone("Europe/Paris")
EAT = timezone.get_fixed_timezone(180) # Africa/Nairobi
ICT = timezone.get_fixed_timezone(420) # Asia/Bangkok
class TimezoneTests(SimpleTestCase):
def test_now(self):
with override_settings(USE_TZ=True):
self.assertTrue(timezone.is_aware(timezone.now()))
with override_settings(USE_TZ=False):
self.assertTrue(timezone.is_naive(timezone.now()))
def test_localdate(self):
naive = datetime.datetime(2015, 1, 1, 0, 0, 1)
with self.assertRaisesMessage(
ValueError,
'localtime() cannot be applied to a naive datetime'):
timezone.localdate(naive)
with self.assertRaisesMessage(
ValueError,
'localtime() cannot be applied to a naive datetime'):