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import datetime
from django.test import TestCase
from django.test.utils import requires_tz_support
from django.utils import timezone, translation
from django.utils.timesince import timesince, timeuntil
from django.utils.translation import npgettext_lazy
class TimesinceTests(TestCase):
def setUp(self):
self.t = datetime.datetime(2007, 8, 14, 13, 46, 0)
self.onemicrosecond = datetime.timedelta(microseconds=1)
self.onesecond = datetime.timedelta(seconds=1)
self.oneminute = datetime.timedelta(minutes=1)
self.onehour = datetime.timedelta(hours=1)
self.oneday = datetime.timedelta(days=1)
self.oneweek = datetime.timedelta(days=7)
self.onemonth = datetime.timedelta(days=30)
self.oneyear = datetime.timedelta(days=365)
def test_equal_datetimes(self):
""" equal datetimes. """
# NOTE: \xa0 avoids wrapping between value and unit
self.assertEqual(timesince(self.t, self.t), '0\xa0minutes')
def test_ignore_microseconds_and_seconds(self):
""" Microseconds and seconds are ignored. """
self.assertEqual(timesince(self.t, self.t + self.onemicrosecond), '0\xa0minutes')
self.assertEqual(timesince(self.t, self.t + self.onesecond), '0\xa0minutes')
def test_other_units(self):
""" Test other units. """
self.assertEqual(timesince(self.t, self.t + self.oneminute), '1\xa0minute')
self.assertEqual(timesince(self.t, self.t + self.onehour), '1\xa0hour')
self.assertEqual(timesince(self.t, self.t + self.oneday), '1\xa0day')
self.assertEqual(timesince(self.t, self.t + self.oneweek), '1\xa0week')
self.assertEqual(timesince(self.t, self.t + self.onemonth), '1\xa0month')
self.assertEqual(timesince(self.t, self.t + self.oneyear), '1\xa0year')
def test_multiple_units(self):
""" Test multiple units. """
self.assertEqual(timesince(self.t, self.t + 2 * self.oneday + 6 * self.onehour), '2\xa0days, 6\xa0hours')
self.assertEqual(timesince(self.t, self.t + 2 * self.oneweek + 2 * self.oneday), '2\xa0weeks, 2\xa0days')
def test_display_first_unit(self):
"""
If the two differing units aren't adjacent, only the first unit is
displayed.
"""
self.assertEqual(
timesince(self.t, self.t + 2 * self.oneweek + 3 * self.onehour + 4 * self.oneminute),
'2\xa0weeks'
)
self.assertEqual(timesince(self.t, self.t + 4 * self.oneday + 5 * self.oneminute), '4\xa0days')
def test_display_second_before_first(self):
"""
When the second date occurs before the first, we should always
get 0 minutes.
"""
self.assertEqual(timesince(self.t, self.t - self.onemicrosecond), '0\xa0minutes')
self.assertEqual(timesince(self.t, self.t - self.onesecond), '0\xa0minutes')
self.assertEqual(timesince(self.t, self.t - self.oneminute), '0\xa0minutes')
self.assertEqual(timesince(self.t, self.t - self.onehour), '0\xa0minutes')
self.assertEqual(timesince(self.t, self.t - self.oneday), '0\xa0minutes')
self.assertEqual(timesince(self.t, self.t - self.oneweek), '0\xa0minutes')
self.assertEqual(timesince(self.t, self.t - self.onemonth), '0\xa0minutes')
self.assertEqual(timesince(self.t, self.t - self.oneyear), '0\xa0minutes')
self.assertEqual(timesince(self.t, self.t - 2 * self.oneday - 6 * self.onehour), '0\xa0minutes')
self.assertEqual(timesince(self.t, self.t - 2 * self.oneweek - 2 * self.oneday), '0\xa0minutes')
self.assertEqual(
timesince(self.t, self.t - 2 * self.oneweek - 3 * self.onehour - 4 * self.oneminute), '0\xa0minutes'
)
self.assertEqual(timesince(self.t, self.t - 4 * self.oneday - 5 * self.oneminute), '0\xa0minutes')
def test_second_before_equal_first_humanize_time_strings(self):
time_strings = {
'minute': npgettext_lazy('naturaltime-future', '%d minute', '%d minutes'),
}
with translation.override('cs'):
for now in [self.t, self.t - self.onemicrosecond, self.t - self.oneday]:
with self.subTest(now):
self.assertEqual(
timesince(self.t, now, time_strings=time_strings),
'0\xa0minut',
)
@requires_tz_support
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_date_objects(self):
""" Both timesince and timeuntil should work on date objects (#17937). """
today = datetime.date.today()
self.assertEqual(timesince(today + self.oneday), '0\xa0minutes')
self.assertEqual(timeuntil(today - self.oneday), '0\xa0minutes')
def test_both_date_objects(self):
""" Timesince should work with both date objects (#9672) """
today = datetime.date.today()
self.assertEqual(timeuntil(today + self.oneday, today), '1\xa0day')
self.assertEqual(timeuntil(today - self.oneday, today), '0\xa0minutes')
self.assertEqual(timeuntil(today + self.oneweek, today), '1\xa0week')
def test_leap_year(self):
start_date = datetime.date(2016, 12, 25)
self.assertEqual(timeuntil(start_date + self.oneweek, start_date), '1\xa0week')
self.assertEqual(timesince(start_date, start_date + self.oneweek), '1\xa0week')
def test_leap_year_new_years_eve(self):
t = datetime.date(2016, 12, 31)
now = datetime.datetime(2016, 12, 31, 18, 0, 0)
self.assertEqual(timesince(t + self.oneday, now), '0\xa0minutes')
self.assertEqual(timeuntil(t - self.oneday, now), '0\xa0minutes')
def test_naive_datetime_with_tzinfo_attribute(self):
class naive(datetime.tzinfo):
def utcoffset(self, dt):
return None
future = datetime.datetime(2080, 1, 1, tzinfo=naive())
self.assertEqual(timesince(future), '0\xa0minutes')
past = datetime.datetime(1980, 1, 1, tzinfo=naive())
self.assertEqual(timeuntil(past), '0\xa0minutes')
def test_thousand_years_ago(self):
t = datetime.datetime(1007, 8, 14, 13, 46, 0)
self.assertEqual(timesince(t, self.t), '1000\xa0years')
self.assertEqual(timeuntil(self.t, t), '1000\xa0years')
def test_depth(self):
t = self.t + self.oneyear + self.onemonth + self.oneweek + self.oneday + self.onehour
tests = [
(t, 1, '1\xa0year'),
(t, 2, '1\xa0year, 1\xa0month'),
(t, 3, '1\xa0year, 1\xa0month, 1\xa0week'),
(t, 4, '1\xa0year, 1\xa0month, 1\xa0week, 1\xa0day'),
(t, 5, '1\xa0year, 1\xa0month, 1\xa0week, 1\xa0day, 1\xa0hour'),
(t, 6, '1\xa0year, 1\xa0month, 1\xa0week, 1\xa0day, 1\xa0hour'),
(self.t + self.onehour, 5, '1\xa0hour'),
(self.t + (4 * self.oneminute), 3, '4\xa0minutes'),
(self.t + self.onehour + self.oneminute, 1, '1\xa0hour'),
(self.t + self.oneday + self.onehour, 1, '1\xa0day'),
(self.t + self.oneweek + self.oneday, 1, '1\xa0week'),
(self.t + self.onemonth + self.oneweek, 1, '1\xa0month'),
(self.t + self.oneyear + self.onemonth, 1, '1\xa0year'),
(self.t + self.oneyear + self.oneweek + self.oneday, 3, '1\xa0year'),
]
for value, depth, expected in tests:
with self.subTest():
self.assertEqual(timesince(self.t, value, depth=depth), expected)
self.assertEqual(timeuntil(value, self.t, depth=depth), expected)
def test_depth_invalid(self):
msg = 'depth must be greater than 0.'
with self.assertRaisesMessage(ValueError, msg):
timesince(self.t, self.t, depth=0)
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