279 lines
10 KiB
Python
279 lines
10 KiB
Python
from datetime import date, datetime, time, tzinfo
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from django.test import SimpleTestCase, override_settings
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from django.test.utils import TZ_SUPPORT, requires_tz_support
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from django.utils import dateformat, translation
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from django.utils.dateformat import format
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from django.utils.timezone import (
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get_default_timezone, get_fixed_timezone, make_aware, utc,
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)
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@override_settings(TIME_ZONE='Europe/Copenhagen')
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class DateFormatTests(SimpleTestCase):
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def setUp(self):
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self._orig_lang = translation.get_language()
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translation.activate('en-us')
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def tearDown(self):
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translation.activate(self._orig_lang)
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def test_date(self):
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d = date(2009, 5, 16)
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self.assertEqual(date.fromtimestamp(int(format(d, 'U'))), d)
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def test_naive_datetime(self):
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dt = datetime(2009, 5, 16, 5, 30, 30)
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self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U'))), dt)
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def test_naive_ambiguous_datetime(self):
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# dt is ambiguous in Europe/Copenhagen. pytz raises an exception for
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# the ambiguity, which results in an empty string.
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dt = datetime(2015, 10, 25, 2, 30, 0)
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# Try all formatters that involve self.timezone.
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self.assertEqual(format(dt, 'I'), '')
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self.assertEqual(format(dt, 'O'), '')
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self.assertEqual(format(dt, 'T'), '')
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self.assertEqual(format(dt, 'Z'), '')
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@requires_tz_support
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def test_datetime_with_local_tzinfo(self):
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ltz = get_default_timezone()
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dt = make_aware(datetime(2009, 5, 16, 5, 30, 30), ltz)
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self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), ltz), dt)
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self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U'))), dt.replace(tzinfo=None))
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@requires_tz_support
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def test_datetime_with_tzinfo(self):
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tz = get_fixed_timezone(-510)
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ltz = get_default_timezone()
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dt = make_aware(datetime(2009, 5, 16, 5, 30, 30), ltz)
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self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), tz), dt)
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self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), ltz), dt)
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# astimezone() is safe here because the target timezone doesn't have DST
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self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U'))), dt.astimezone(ltz).replace(tzinfo=None))
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self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), tz).timetuple(), dt.astimezone(tz).timetuple())
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self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), ltz).timetuple(), dt.astimezone(ltz).timetuple())
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def test_epoch(self):
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udt = datetime(1970, 1, 1, tzinfo=utc)
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self.assertEqual(format(udt, 'U'), '0')
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def test_empty_format(self):
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my_birthday = datetime(1979, 7, 8, 22, 00)
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self.assertEqual(dateformat.format(my_birthday, ''), '')
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def test_am_pm(self):
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morning = time(7, 00)
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evening = time(19, 00)
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self.assertEqual(dateformat.format(morning, 'a'), 'a.m.')
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self.assertEqual(dateformat.format(evening, 'a'), 'p.m.')
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self.assertEqual(dateformat.format(morning, 'A'), 'AM')
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self.assertEqual(dateformat.format(evening, 'A'), 'PM')
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def test_microsecond(self):
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# Regression test for #18951
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dt = datetime(2009, 5, 16, microsecond=123)
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self.assertEqual(dateformat.format(dt, 'u'), '000123')
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def test_date_formats(self):
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# Specifiers 'I', 'r', and 'U' are covered in test_timezones().
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my_birthday = datetime(1979, 7, 8, 22, 00)
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for specifier, expected in [
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('b', 'jul'),
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('d', '08'),
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('D', 'Sun'),
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('E', 'July'),
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('F', 'July'),
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('j', '8'),
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('l', 'Sunday'),
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('L', 'False'),
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('m', '07'),
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('M', 'Jul'),
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('n', '7'),
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('N', 'July'),
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('o', '1979'),
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('S', 'th'),
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('t', '31'),
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('w', '0'),
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('W', '27'),
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('y', '79'),
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('Y', '1979'),
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('z', '189'),
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]:
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with self.subTest(specifier=specifier):
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self.assertEqual(dateformat.format(my_birthday, specifier), expected)
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def test_date_formats_c_format(self):
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timestamp = datetime(2008, 5, 19, 11, 45, 23, 123456)
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self.assertEqual(dateformat.format(timestamp, 'c'), '2008-05-19T11:45:23.123456')
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def test_time_formats(self):
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# Specifiers 'I', 'r', and 'U' are covered in test_timezones().
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my_birthday = datetime(1979, 7, 8, 22, 00)
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for specifier, expected in [
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('a', 'p.m.'),
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('A', 'PM'),
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('f', '10'),
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('g', '10'),
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('G', '22'),
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('h', '10'),
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('H', '22'),
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('i', '00'),
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('P', '10 p.m.'),
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('s', '00'),
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('u', '000000'),
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]:
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with self.subTest(specifier=specifier):
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self.assertEqual(dateformat.format(my_birthday, specifier), expected)
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def test_dateformat(self):
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my_birthday = datetime(1979, 7, 8, 22, 00)
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self.assertEqual(dateformat.format(my_birthday, r'Y z \C\E\T'), '1979 189 CET')
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self.assertEqual(dateformat.format(my_birthday, r'jS \o\f F'), '8th of July')
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def test_futuredates(self):
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the_future = datetime(2100, 10, 25, 0, 00)
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self.assertEqual(dateformat.format(the_future, r'Y'), '2100')
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def test_day_of_year_leap(self):
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self.assertEqual(dateformat.format(datetime(2000, 12, 31), 'z'), '366')
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def test_timezones(self):
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my_birthday = datetime(1979, 7, 8, 22, 00)
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summertime = datetime(2005, 10, 30, 1, 00)
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wintertime = datetime(2005, 10, 30, 4, 00)
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noon = time(12, 0, 0)
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# 3h30m to the west of UTC
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tz = get_fixed_timezone(-210)
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aware_dt = datetime(2009, 5, 16, 5, 30, 30, tzinfo=tz)
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if TZ_SUPPORT:
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for specifier, expected in [
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('e', ''),
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('O', '+0100'),
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('r', 'Sun, 08 Jul 1979 22:00:00 +0100'),
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('T', 'CET'),
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('U', '300315600'),
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('Z', '3600'),
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]:
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with self.subTest(specifier=specifier):
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self.assertEqual(dateformat.format(my_birthday, specifier), expected)
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self.assertEqual(dateformat.format(aware_dt, 'e'), '-0330')
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self.assertEqual(
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dateformat.format(aware_dt, 'r'),
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'Sat, 16 May 2009 05:30:30 -0330',
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)
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self.assertEqual(dateformat.format(summertime, 'I'), '1')
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self.assertEqual(dateformat.format(summertime, 'O'), '+0200')
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self.assertEqual(dateformat.format(wintertime, 'I'), '0')
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self.assertEqual(dateformat.format(wintertime, 'O'), '+0100')
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for specifier in ['e', 'O', 'T', 'Z']:
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with self.subTest(specifier=specifier):
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self.assertEqual(dateformat.time_format(noon, specifier), '')
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# Ticket #16924 -- We don't need timezone support to test this
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self.assertEqual(dateformat.format(aware_dt, 'O'), '-0330')
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def test_invalid_time_format_specifiers(self):
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my_birthday = date(1984, 8, 7)
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for specifier in ['a', 'A', 'f', 'g', 'G', 'h', 'H', 'i', 'P', 'r', 's', 'u']:
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with self.subTest(specifier=specifier):
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msg = (
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'The format for date objects may not contain time-related '
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f'format specifiers (found {specifier!r}).'
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)
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with self.assertRaisesMessage(TypeError, msg):
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dateformat.format(my_birthday, specifier)
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@requires_tz_support
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def test_e_format_with_named_time_zone(self):
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dt = datetime(1970, 1, 1, tzinfo=utc)
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self.assertEqual(dateformat.format(dt, 'e'), 'UTC')
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@requires_tz_support
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def test_e_format_with_time_zone_with_unimplemented_tzname(self):
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class NoNameTZ(tzinfo):
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"""Time zone without .tzname() defined."""
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def utcoffset(self, dt):
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return None
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dt = datetime(1970, 1, 1, tzinfo=NoNameTZ())
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self.assertEqual(dateformat.format(dt, 'e'), '')
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def test_P_format(self):
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for expected, t in [
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('midnight', time(0)),
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('noon', time(12)),
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('4 a.m.', time(4)),
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('8:30 a.m.', time(8, 30)),
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('4 p.m.', time(16)),
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('8:30 p.m.', time(20, 30)),
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]:
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with self.subTest(time=t):
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self.assertEqual(dateformat.time_format(t, 'P'), expected)
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def test_r_format_with_non_en_locale(self):
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# Changing the locale doesn't change the "r" format.
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dt = datetime(1979, 7, 8, 22, 00)
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with translation.override('fr'):
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self.assertEqual(
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dateformat.format(dt, 'r'),
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'Sun, 08 Jul 1979 22:00:00 +0100',
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)
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def test_S_format(self):
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for expected, days in [
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('st', [1, 21, 31]),
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('nd', [2, 22]),
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('rd', [3, 23]),
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('th', (n for n in range(4, 31) if n not in [21, 22, 23])),
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]:
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for day in days:
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dt = date(1970, 1, day)
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with self.subTest(day=day):
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self.assertEqual(dateformat.format(dt, 'S'), expected)
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def test_y_format_year_before_1000(self):
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tests = [
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(476, '76'),
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(42, '42'),
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(4, '04'),
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]
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for year, expected_date in tests:
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with self.subTest(year=year):
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self.assertEqual(
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dateformat.format(datetime(year, 9, 8, 5, 0), 'y'),
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expected_date,
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)
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def test_Y_format_year_before_1000(self):
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self.assertEqual(dateformat.format(datetime(1, 1, 1), 'Y'), '0001')
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self.assertEqual(dateformat.format(datetime(999, 1, 1), 'Y'), '0999')
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def test_twelve_hour_format(self):
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tests = [
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(0, '12', '12'),
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(1, '1', '01'),
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(11, '11', '11'),
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(12, '12', '12'),
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(13, '1', '01'),
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(23, '11', '11'),
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]
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for hour, g_expected, h_expected in tests:
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dt = datetime(2000, 1, 1, hour)
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with self.subTest(hour=hour):
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self.assertEqual(dateformat.format(dt, 'g'), g_expected)
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self.assertEqual(dateformat.format(dt, 'h'), h_expected)
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