mirror of https://github.com/django/django.git
297 lines
11 KiB
Python
297 lines
11 KiB
Python
from datetime import date, datetime, time, timezone, 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 get_default_timezone, get_fixed_timezone, make_aware
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@override_settings(TIME_ZONE="Europe/Copenhagen")
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class DateFormatTests(SimpleTestCase):
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@classmethod
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def setUpClass(cls):
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cls.enterClassContext(translation.override("en-us"))
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super().setUpClass()
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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.
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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(
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datetime.fromtimestamp(int(format(dt, "U"))), dt.replace(tzinfo=None)
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)
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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(
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datetime.fromtimestamp(int(format(dt, "U"))),
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dt.astimezone(ltz).replace(tzinfo=None),
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)
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self.assertEqual(
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datetime.fromtimestamp(int(format(dt, "U")), tz).timetuple(),
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dt.astimezone(tz).timetuple(),
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)
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self.assertEqual(
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datetime.fromtimestamp(int(format(dt, "U")), ltz).timetuple(),
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dt.astimezone(ltz).timetuple(),
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)
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def test_epoch(self):
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udt = datetime(1970, 1, 1, tzinfo=timezone.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(
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dateformat.format(timestamp, "c"), "2008-05-19T11:45:23.123456"
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)
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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(
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dateformat.format(my_birthday, specifier), expected
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)
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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", "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=timezone.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_date(self):
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# Assume midnight in default timezone if datetime.date provided.
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dt = date(2022, 7, 1)
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self.assertEqual(
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dateformat.format(dt, "r"),
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"Fri, 01 Jul 2022 00:00:00 +0200",
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)
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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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