from __future__ import unicode_literals from datetime import datetime, date import os import time from django.utils.dateformat import format from django.utils import dateformat, translation, unittest from django.utils.timezone import utc from django.utils.tzinfo import FixedOffset, LocalTimezone class DateFormatTests(unittest.TestCase): def setUp(self): self.old_TZ = os.environ.get('TZ') os.environ['TZ'] = 'Europe/Copenhagen' translation.activate('en-us') try: # Check if a timezone has been set time.tzset() self.tz_tests = True except AttributeError: # No timezone available. Don't run the tests that require a TZ self.tz_tests = False def tearDown(self): if self.old_TZ is None: del os.environ['TZ'] else: os.environ['TZ'] = self.old_TZ # Cleanup - force re-evaluation of TZ environment variable. if self.tz_tests: time.tzset() def test_date(self): d = date(2009, 5, 16) self.assertEqual(date.fromtimestamp(int(format(d, 'U'))), d) def test_naive_datetime(self): dt = datetime(2009, 5, 16, 5, 30, 30) self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U'))), dt) def test_datetime_with_local_tzinfo(self): ltz = LocalTimezone(datetime.now()) dt = datetime(2009, 5, 16, 5, 30, 30, tzinfo=ltz) self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), ltz), dt) self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U'))), dt.replace(tzinfo=None)) def test_datetime_with_tzinfo(self): tz = FixedOffset(-510) ltz = LocalTimezone(datetime.now()) dt = datetime(2009, 5, 16, 5, 30, 30, tzinfo=tz) self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), tz), dt) self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U')), ltz), dt) 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_epoch(self): udt = datetime(1970, 1, 1, tzinfo=utc) self.assertEqual(format(udt, 'U'), '0') def test_empty_format(self): my_birthday = datetime(1979, 7, 8, 22, 00) self.assertEqual(dateformat.format(my_birthday, ''), '') def test_am_pm(self): my_birthday = datetime(1979, 7, 8, 22, 00) self.assertEqual(dateformat.format(my_birthday, 'a'), 'p.m.') def test_date_formats(self): my_birthday = datetime(1979, 7, 8, 22, 00) timestamp = datetime(2008, 5, 19, 11, 45, 23, 123456) self.assertEqual(dateformat.format(my_birthday, 'A'), 'PM') self.assertEqual(dateformat.format(timestamp, 'c'), '2008-05-19T11:45:23.123456') self.assertEqual(dateformat.format(my_birthday, 'd'), '08') self.assertEqual(dateformat.format(my_birthday, 'j'), '8') self.assertEqual(dateformat.format(my_birthday, 'l'), 'Sunday') self.assertEqual(dateformat.format(my_birthday, 'L'), 'False') self.assertEqual(dateformat.format(my_birthday, 'm'), '07') self.assertEqual(dateformat.format(my_birthday, 'M'), 'Jul') self.assertEqual(dateformat.format(my_birthday, 'b'), 'jul') self.assertEqual(dateformat.format(my_birthday, 'n'), '7') self.assertEqual(dateformat.format(my_birthday, 'N'), 'July') def test_time_formats(self): my_birthday = datetime(1979, 7, 8, 22, 00) self.assertEqual(dateformat.format(my_birthday, 'P'), '10 p.m.') self.assertEqual(dateformat.format(my_birthday, 's'), '00') self.assertEqual(dateformat.format(my_birthday, 'S'), 'th') self.assertEqual(dateformat.format(my_birthday, 't'), '31') self.assertEqual(dateformat.format(my_birthday, 'w'), '0') self.assertEqual(dateformat.format(my_birthday, 'W'), '27') self.assertEqual(dateformat.format(my_birthday, 'y'), '79') self.assertEqual(dateformat.format(my_birthday, 'Y'), '1979') self.assertEqual(dateformat.format(my_birthday, 'z'), '189') def test_dateformat(self): my_birthday = datetime(1979, 7, 8, 22, 00) self.assertEqual(dateformat.format(my_birthday, r'Y z \C\E\T'), '1979 189 CET') self.assertEqual(dateformat.format(my_birthday, r'jS \o\f F'), '8th of July') def test_futuredates(self): the_future = datetime(2100, 10, 25, 0, 00) self.assertEqual(dateformat.format(the_future, r'Y'), '2100') 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) if self.tz_tests: 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, '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 # 3h30m to the west of UTC tz = FixedOffset(-3*60 - 30) dt = datetime(2009, 5, 16, 5, 30, 30, tzinfo=tz) self.assertEqual(dateformat.format(dt, 'O'), '-0330')