django1/tests/regressiontests/utils/dateformat.py

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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'), u'0')
def test_empty_format(self):
my_birthday = datetime(1979, 7, 8, 22, 00)
self.assertEqual(dateformat.format(my_birthday, ''), u'')
def test_am_pm(self):
my_birthday = datetime(1979, 7, 8, 22, 00)
self.assertEqual(dateformat.format(my_birthday, 'a'), u'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'), u'PM')
self.assertEqual(dateformat.format(timestamp, 'c'), u'2008-05-19T11:45:23.123456')
self.assertEqual(dateformat.format(my_birthday, 'd'), u'08')
self.assertEqual(dateformat.format(my_birthday, 'j'), u'8')
self.assertEqual(dateformat.format(my_birthday, 'l'), u'Sunday')
self.assertEqual(dateformat.format(my_birthday, 'L'), u'False')
self.assertEqual(dateformat.format(my_birthday, 'm'), u'07')
self.assertEqual(dateformat.format(my_birthday, 'M'), u'Jul')
self.assertEqual(dateformat.format(my_birthday, 'b'), u'jul')
self.assertEqual(dateformat.format(my_birthday, 'n'), u'7')
self.assertEqual(dateformat.format(my_birthday, 'N'), u'July')
def test_time_formats(self):
my_birthday = datetime(1979, 7, 8, 22, 00)
self.assertEqual(dateformat.format(my_birthday, 'P'), u'10 p.m.')
self.assertEqual(dateformat.format(my_birthday, 's'), u'00')
self.assertEqual(dateformat.format(my_birthday, 'S'), u'th')
self.assertEqual(dateformat.format(my_birthday, 't'), u'31')
self.assertEqual(dateformat.format(my_birthday, 'w'), u'0')
self.assertEqual(dateformat.format(my_birthday, 'W'), u'27')
self.assertEqual(dateformat.format(my_birthday, 'y'), u'79')
self.assertEqual(dateformat.format(my_birthday, 'Y'), u'1979')
self.assertEqual(dateformat.format(my_birthday, 'z'), u'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'), u'1979 189 CET')
self.assertEqual(dateformat.format(my_birthday, r'jS o\f F'), u'8th of July')
def test_futuredates(self):
the_future = datetime(2100, 10, 25, 0, 00)
self.assertEqual(dateformat.format(the_future, r'Y'), u'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'), u'+0100')
self.assertEqual(dateformat.format(my_birthday, 'r'), u'Sun, 8 Jul 1979 22:00:00 +0100')
self.assertEqual(dateformat.format(my_birthday, 'T'), u'CET')
self.assertEqual(dateformat.format(my_birthday, 'U'), u'300315600')
self.assertEqual(dateformat.format(timestamp, 'u'), u'123456')
self.assertEqual(dateformat.format(my_birthday, 'Z'), u'3600')
self.assertEqual(dateformat.format(summertime, 'I'), u'1')
self.assertEqual(dateformat.format(summertime, 'O'), u'+0200')
self.assertEqual(dateformat.format(wintertime, 'I'), u'0')
self.assertEqual(dateformat.format(wintertime, 'O'), u'+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'), u'-0330')