view test/test_dates.py @ 7399:deb8e7e6d66d

Skip redis tests if unable to communicate with the server. If the redis module is in the test environment, the redis tests will not be skipped. If connecting to redis during testing fails with a ConnectionError because there is no redis server at localhost, or if it fails with an AuthenticationError, you would fail a slew of tests. This causes the tests to report as skipped if either of the two errors occurs. It is very inefficient as it fails in setup() for the tests, but at least it does report skipping the tests. Also documented how to pass the redis password to the tests in the test part of the install docs. Future note: running tests needs proper docs in development.txt (including database setup) and a link left to that doc in installation.txt.
author John Rouillard <rouilj@ieee.org>
date Wed, 24 May 2023 12:52:53 -0400
parents 5be4f9104cf7
children c8a931aa7514
line wrap: on
line source

#
# Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
# This module is free software, and you may redistribute it and/or modify
# under the same terms as Python, so long as this copyright message and
# disclaimer are retained in their original form.
#
# IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
# DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
# OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
# BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE.  THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
# BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
# SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#
import unittest
import time
import datetime
import calendar

import pytest
from roundup import date, i18n
from roundup.date import Date, Interval, Range, fixTimeOverflow, \
    get_timezone

try:
    import pytz
    skip_pytz = lambda func, *args, **kwargs: func
except ImportError:
    # FIX: workaround for a bug in pytest.mark.skip():
    #   https://github.com/pytest-dev/pytest/issues/568
    from .pytest_patcher import mark_class
    skip_pytz = mark_class(pytest.mark.skip(reason="'pytz' not installed"))


class DateTestCase(unittest.TestCase):
    def setUp(self):
        # force use of local locale directory. System locale dir 
        # doesn't have the locale files installed, and without wiping
        # the default the .mo file sometimes isn't found.
        self.backup_domain = i18n.DOMAIN
        i18n.DOMAIN = ''
        self.backup_locale_dirs = i18n.LOCALE_DIRS
        i18n.LOCALE_DIRS=["locale"]

        self.old_gettext_ = i18n.gettext
        self.old_ngettext_ = i18n.ngettext
        i18n.gettext = i18n.get_translation(language='C').gettext
        i18n.degettext = i18n.get_translation(language='de').gettext
        i18n.ngettext = i18n.get_translation(language='C').ngettext
        i18n.dengettext = i18n.get_translation(language='de').ngettext

    def tearDown(self):
        i18n.gettext = self.old_gettext_
        i18n.ngettext = self.old_ngettext_
        i18n.LOCALE_DIRS = self.backup_locale_dirs
        i18n.DOMAIN = self.backup_domain

    def testDateInterval(self):
        ae = self.assertEqual
        date = Date("2000-06-26.00:34:02 + 2d")
        ae(str(date), '2000-06-28.00:34:02')
        date = Date("2000-02-27 + 2d")
        ae(str(date), '2000-02-29.00:00:00')
        date = Date("2001-02-27 + 2d")
        ae(str(date), '2001-03-01.00:00:00')
        date = Date("2009", add_granularity=True)
        self.assertRaises(ValueError, Date, ". +30d", add_granularity=True)
        
    def testDate(self):
        ae = self.assertEqual
        date = Date("2000-04-17")
        ae(str(date), '2000-04-17.00:00:00')
        date = Date("2000/04/17")
        ae(str(date), '2000-04-17.00:00:00')
        date = Date("2000-4-7")
        ae(str(date), '2000-04-07.00:00:00')
        date = Date("2000-4-17")
        ae(str(date), '2000-04-17.00:00:00')
        date = Date("01-25")
        y, m, d, x, x, x, x, x, x = time.gmtime(time.time())
        ae(str(date), '%s-01-25.00:00:00'%y)
        date = Date("2000-04-17.03:45")
        ae(str(date), '2000-04-17.03:45:00')
        date = Date("2000/04/17.03:45")
        ae(str(date), '2000-04-17.03:45:00')
        date = Date("08-13.22:13")
        ae(str(date), '%s-08-13.22:13:00'%y)
        date = Date("11-07.09:32:43")
        ae(str(date), '%s-11-07.09:32:43'%y)
        date = Date("14:25")
        ae(str(date), '%s-%02d-%02d.14:25:00'%(y, m, d))
        date = Date("8:47:11")
        ae(str(date), '%s-%02d-%02d.08:47:11'%(y, m, d))
        ae(str(Date('2003')), '2003-01-01.00:00:00')
        ae(str(Date('2004-06')), '2004-06-01.00:00:00')
        ae(str(Date('1900-02-01')), '1900-02-01.00:00:00')
        ae(str(Date('1800-07-15')), '1800-07-15.00:00:00')

    def testLeapYear(self):
        self.assertEqual(str(Date('2008-02-29')), '2008-02-29.00:00:00')

    def testDateError(self):
        self.assertRaises(ValueError, Date, "12")
        # Date cannot handle dates before year 1
        self.assertRaises(ValueError, Date, (0, 1, 1, 0, 0, 0.0, 0, 1, -1))
        self.assertRaises(ValueError, Date, "1/1/06")

    def testOffset(self):
        ae = self.assertEqual
        date = Date("2000-04-17", -5)
        ae(str(date), '2000-04-17.05:00:00')
        date = Date("01-25", -5)
        y, m, d, x, x, x, x, x, x = time.gmtime(time.time())
        ae(str(date), '%s-01-25.05:00:00'%y)
        date = Date("2000-04-17.03:45", -5)
        ae(str(date), '2000-04-17.08:45:00')
        date = Date("08-13.22:13", -5)
        ae(str(date), '%s-08-14.03:13:00'%y)
        date = Date("11-07.09:32:43", -5)
        ae(str(date), '%s-11-07.14:32:43'%y)
        date = Date("14:25", -5)
        ae(str(date), '%s-%02d-%02d.19:25:00'%(y, m, d))
        date = Date("8:47:11", -5)
        ae(str(date), '%s-%02d-%02d.13:47:11'%(y, m, d))

        # just make sure we parse these, m'kay?
        date = Date('-1d')
        date = Date('-1w')
        date = Date('-1m')
        date = Date('-1y')

    def testOffsetRandom(self):
        ae = self.assertEqual
        # XXX unsure of the usefulness of these, they're pretty random
        date = Date('2000-01-01') + Interval('- 2y 2m')
        ae(str(date), '1997-11-01.00:00:00')
        date = Date('2000-01-01 - 2y 2m')
        ae(str(date), '1997-11-01.00:00:00')
        date = Date('2000-01-01') + Interval('2m')
        ae(str(date), '2000-03-01.00:00:00')
        date = Date('2000-01-01 + 2m')
        ae(str(date), '2000-03-01.00:00:00')

        date = Date('2000-01-01') + Interval('60d')
        ae(str(date), '2000-03-01.00:00:00')
        date = Date('2001-01-01') + Interval('60d')
        ae(str(date), '2001-03-02.00:00:00')

    def testOffsetAdd(self):
        ae = self.assertEqual
        date = Date('2000-02-28.23:59:59') + Interval('00:00:01')
        ae(str(date), '2000-02-29.00:00:00')
        date = Date('2001-02-28.23:59:59') + Interval('00:00:01')
        ae(str(date), '2001-03-01.00:00:00')

        date = Date('2000-02-28.23:58:59') + Interval('00:01:01')
        ae(str(date), '2000-02-29.00:00:00')
        date = Date('2001-02-28.23:58:59') + Interval('00:01:01')
        ae(str(date), '2001-03-01.00:00:00')

        date = Date('2000-02-28.22:58:59') + Interval('01:01:01')
        ae(str(date), '2000-02-29.00:00:00')
        date = Date('2001-02-28.22:58:59') + Interval('01:01:01')
        ae(str(date), '2001-03-01.00:00:00')

        date = Date('2000-02-28.22:58:59') + Interval('00:00:3661')
        ae(str(date), '2000-02-29.00:00:00')
        date = Date('2001-02-28.22:58:59') + Interval('00:00:3661')
        ae(str(date), '2001-03-01.00:00:00')
        date = Date('2001-03-01.00:00:00') + Interval('150y')
        ae(str(date), '2151-03-01.00:00:00')

    def testOffsetSub(self):
        ae = self.assertEqual
        date = Date('2000-12-01') - Interval('- 1d')

        date = Date('2000-01-01') - Interval('- 2y 2m')
        ae(str(date), '2002-03-01.00:00:00')
        date = Date('2000-01-01') - Interval('2m')
        ae(str(date), '1999-11-01.00:00:00')

        date = Date('2000-03-01') - Interval('60d')
        ae(str(date), '2000-01-01.00:00:00')
        date = Date('2001-03-02') - Interval('60d')
        ae(str(date), '2001-01-01.00:00:00')

        date = Date('2000-02-29.00:00:00') - Interval('00:00:01')
        ae(str(date), '2000-02-28.23:59:59')
        date = Date('2001-03-01.00:00:00') - Interval('00:00:01')
        ae(str(date), '2001-02-28.23:59:59')

        date = Date('2000-02-29.00:00:00') - Interval('00:01:01')
        ae(str(date), '2000-02-28.23:58:59')
        date = Date('2001-03-01.00:00:00') - Interval('00:01:01')
        ae(str(date), '2001-02-28.23:58:59')

        date = Date('2000-02-29.00:00:00') - Interval('01:01:01')
        ae(str(date), '2000-02-28.22:58:59')
        date = Date('2001-03-01.00:00:00') - Interval('01:01:01')
        ae(str(date), '2001-02-28.22:58:59')

        date = Date('2000-02-29.00:00:00') - Interval('00:00:3661')
        ae(str(date), '2000-02-28.22:58:59')
        date = Date('2001-03-01.00:00:00') - Interval('00:00:3661')
        ae(str(date), '2001-02-28.22:58:59')
        date = Date('2001-03-01.00:00:00') - Interval('150y')
        ae(str(date), '1851-03-01.00:00:00')

    def testDateLocal(self):
        ae = self.assertEqual
        date = Date("02:42:20")
        date = date.local(10)
        y, m, d, x, x, x, x, x, x = time.gmtime(time.time())
        ae(str(date), '%s-%02d-%02d.12:42:20'%(y, m, d))

    def testIntervalInit(self):
        ae = self.assertEqual
        ae(str(Interval('3y')), '+ 3y')
        ae(str(Interval('2 y 1 m')), '+ 2y 1m')
        ae(str(Interval('1m 25d')), '+ 1m 25d')
        ae(str(Interval('-2w 3 d ')), '- 17d')
        ae(str(Interval(' - 1 d 2:50 ')), '- 1d 2:50')
        ae(str(Interval(' 14:00 ')), '+ 14:00')
        ae(str(Interval(' 0:04:33 ')), '+ 0:04:33')
        ae(str(Interval(8.*3600)), '+ 8:00')

    def testIntervalInitDate(self):
        ae = self.assertEqual
        now = Date('.')
        now.hour = now.minute = now.second = 0
        then = now + Interval('2d')
        ae((Interval(str(then))), Interval('- 2d'))
        then = now - Interval('2d')
        ae(Interval(str(then)), Interval('+ 2d'))

    def testIntervalAddMonthBoundary(self):
        # force the transition over a month boundary
        now = Date('2003-10-30.00:00:00')
        then = now + Interval('2d')
        self.assertEqual(str(then), '2003-11-01.00:00:00')
        now = Date('2004-02-28.00:00:00')
        then = now + Interval('1d')
        self.assertEqual(str(then), '2004-02-29.00:00:00')
        now = Date('2003-02-28.00:00:00')
        then = now + Interval('1d')
        self.assertEqual(str(then), '2003-03-01.00:00:00')
        now = Date('2003-01-01.00:00:00')
        then = now + Interval('59d')
        self.assertEqual(str(then), '2003-03-01.00:00:00')
        now = Date('2004-01-01.00:00:00')
        then = now + Interval('59d')
        self.assertEqual(str(then), '2004-02-29.00:00:00')

    def testIntervalSubtractMonthBoundary(self):
        # force the transition over a month boundary
        now = Date('2003-11-01.00:00:00')
        then = now - Interval('2d')
        self.assertEqual(str(then), '2003-10-30.00:00:00')
        now = Date('2004-02-29.00:00:00')
        then = now - Interval('1d')
        self.assertEqual(str(then), '2004-02-28.00:00:00')
        now = Date('2003-03-01.00:00:00')
        then = now - Interval('1d')
        self.assertEqual(str(then), '2003-02-28.00:00:00')
        now = Date('2003-03-01.00:00:00')
        then = now - Interval('59d')
        self.assertEqual(str(then), '2003-01-01.00:00:00')
        now = Date('2004-02-29.00:00:00')
        then = now - Interval('59d')
        self.assertEqual(str(then), '2004-01-01.00:00:00')

    def testIntervalAddYearBoundary(self):
        # force the transition over a year boundary
        now = Date('2003-12-30.00:00:00')
        then = now + Interval('2d')
        self.assertEqual(str(then), '2004-01-01.00:00:00')
        now = Date('2003-01-01.00:00:00')
        then = now + Interval('365d')
        self.assertEqual(str(then), '2004-01-01.00:00:00')
        now = Date('2004-01-01.00:00:00')
        then = now + Interval('366d')
        self.assertEqual(str(then), '2005-01-01.00:00:00')

    def testIntervalSubtractYearBoundary(self):
        # force the transition over a year boundary
        now = Date('2003-01-01.00:00:00')
        then = now - Interval('2d')
        self.assertEqual(str(then), '2002-12-30.00:00:00')
        now = Date('2004-02-01.00:00:00')
        then = now - Interval('365d')
        self.assertEqual(str(then), '2003-02-01.00:00:00')
        now = Date('2005-02-01.00:00:00')
        then = now - Interval('365d')
        self.assertEqual(str(then), '2004-02-02.00:00:00')

    def testDateSubtract(self):
        # These are thoroughly broken right now.
        i = Date('2003-03-15.00:00:00') - Date('2003-03-10.00:00:00')
        self.assertEqual(i, Interval('5d'))
        i = Date('2003-02-01.00:00:00') - Date('2003-03-01.00:00:00')
        self.assertEqual(i, Interval('-28d'))
        i = Date('2003-03-01.00:00:00') - Date('2003-02-01.00:00:00')
        self.assertEqual(i, Interval('28d'))
        i = Date('2003-03-03.00:00:00') - Date('2003-02-01.00:00:00')
        self.assertEqual(i, Interval('30d'))
        i = Date('2003-03-03.00:00:00') - Date('2002-02-01.00:00:00')
        self.assertEqual(i, Interval('395d'))
        i = Date('2003-03-03.00:00:00') - Date('2003-04-01.00:00:00')
        self.assertEqual(i, Interval('-29d'))
        i = Date('2003-03-01.00:00:00') - Date('2003-02-01.00:00:00')
        self.assertEqual(i, Interval('28d'))
        # force the transition over a year boundary
        i = Date('2003-01-01.00:00:00') - Date('2002-01-01.00:00:00')
        self.assertEqual(i, Interval('365d'))
        i = Date('1952-01-01') - Date('1953-01-01')
        self.assertEqual(i, Interval('-366d'))
        i = Date('1953-01-01') - Date('1952-01-01')
        self.assertEqual(i, Interval('366d'))

    def testIntervalAdd(self):
        ae = self.assertEqual
        ae(str(Interval('1y') + Interval('1y')), '+ 2y')
        ae(str(Interval('1y') + Interval('1m')), '+ 1y 1m')
        ae(str(Interval('1y') + Interval('2:40')), '+ 1y 2:40')
        ae(str(Interval('1y') + Interval('- 1y')), '00:00')
        ae(str(Interval('- 1y') + Interval('1y')), '00:00')
        ae(str(Interval('- 1y') + Interval('- 1y')), '- 2y')
        ae(str(Interval('1y') + Interval('- 1m')), '+ 11m')
        ae(str(Interval('1:00') + Interval('1:00')), '+ 2:00')
        ae(str(Interval('0:50') + Interval('0:50')), '+ 1:40')
        ae(str(Interval('1:50') + Interval('- 1:50')), '00:00')
        ae(str(Interval('- 1:50') + Interval('1:50')), '00:00')
        ae(str(Interval('- 1:50') + Interval('- 1:50')), '- 3:40')
        ae(str(Interval('1:59:59') + Interval('00:00:01')), '+ 2:00')
        ae(str(Interval('2:00') + Interval('- 00:00:01')), '+ 1:59:59')

    def testIntervalSub(self):
        ae = self.assertEqual
        ae(str(Interval('1y') - Interval('- 1y')), '+ 2y')
        ae(str(Interval('1y') - Interval('- 1m')), '+ 1y 1m')
        ae(str(Interval('1y') - Interval('- 2:40')), '+ 1y 2:40')
        ae(str(Interval('1y') - Interval('1y')), '00:00')
        ae(str(Interval('1y') - Interval('1m')), '+ 11m')
        ae(str(Interval('1:00') - Interval('- 1:00')), '+ 2:00')
        ae(str(Interval('0:50') - Interval('- 0:50')), '+ 1:40')
        ae(str(Interval('1:50') - Interval('1:50')), '00:00')
        ae(str(Interval('1:59:59') - Interval('- 00:00:01')), '+ 2:00')
        ae(str(Interval('2:00') - Interval('00:00:01')), '+ 1:59:59')

    def testOverflow(self):
        ae = self.assertEqual
        ae(fixTimeOverflow((1,0,0,0, 0, 0, 60)), (1,0,0,0, 0, 1, 0))
        ae(fixTimeOverflow((1,0,0,0, 0, 0, 100)), (1,0,0,0, 0, 1, 40))
        ae(fixTimeOverflow((1,0,0,0, 0, 0, 60*60)), (1,0,0,0, 1, 0, 0))
        ae(fixTimeOverflow((1,0,0,0, 0, 0, 24*60*60)), (1,0,0,1, 0, 0, 0))
        ae(fixTimeOverflow((1,0,0,0, 0, 0, -1)), (-1,0,0,0, 0, 0, 1))
        ae(fixTimeOverflow((1,0,0,0, 0, 0, -100)), (-1,0,0,0, 0, 1, 40))
        ae(fixTimeOverflow((1,0,0,0, 0, 0, -60*60)), (-1,0,0,0, 1, 0, 0))
        ae(fixTimeOverflow((1,0,0,0, 0, 0, -24*60*60)), (-1,0,0,1, 0, 0, 0))
        ae(fixTimeOverflow((-1,0,0,0, 0, 0, 1)), (-1,0,0,0, 0, 0, 1))
        ae(fixTimeOverflow((-1,0,0,0, 0, 0, 100)), (-1,0,0,0, 0, 1, 40))
        ae(fixTimeOverflow((-1,0,0,0, 0, 0, 60*60)), (-1,0,0,0, 1, 0, 0))
        ae(fixTimeOverflow((-1,0,0,0, 0, 0, 24*60*60)), (-1,0,0,1, 0, 0, 0))

    def testDivision(self):
        ae = self.assertEqual
        ae(str(Interval('1y')/2), '+ 6m')
        ae(str(Interval('1:00')/2), '+ 0:30')
        ae(str(Interval('00:01')/2), '+ 0:00:30')

    def testSorting(self):
        ae = self.assertEqual
        i1 = Interval('1y')
        i2 = Interval('1d')
        l = [i1, i2]; l.sort()
        ae(l, [i2, i1])
        l = [i2, i1]; l.sort()
        ae(l, [i2, i1])
        i1 = Interval('- 2d')
        i2 = Interval('1d')
        l = [i1, i2]; l.sort()
        ae(l, [i1, i2])

        i1 = Interval("1:20")
        i2 = Interval("2d")
        i3 = Interval("3:30")
        l = [i1, i2, i3]; l.sort()
        ae(l, [i1, i3, i2])

    def testGranularity(self):
        ae = self.assertEqual
        ae(str(Date('2003-2-12', add_granularity=1)), '2003-02-12.23:59:59')
        ae(str(Date('2003-1-1.23:00', add_granularity=1)), '2003-01-01.23:00:59')
        ae(str(Date('2003', add_granularity=1)), '2003-12-31.23:59:59')
        ae(str(Date('2003-5', add_granularity=1)), '2003-05-31.23:59:59')
        ae(str(Date('2003-12', add_granularity=1)), '2003-12-31.23:59:59')
        ae(str(Interval('+1w', add_granularity=1)), '+ 14d')
        ae(str(Interval('-2m 3w', add_granularity=1)), '- 2m 14d')

    def testIntervalPretty(self):
        def ae(spec, pretty):
            self.assertEqual(Interval(spec).pretty(), pretty)
        ae('2y', 'in 2 years')
        ae('1y', 'in 1 year')
        ae('2m', 'in 2 months')
        ae('1m 30d', 'in 2 months')
        ae('60d', 'in 2 months')
        ae('59d', 'in 1 month')
        ae('1m', 'in 1 month')
        ae('29d', 'in 1 month')
        ae('28d', 'in 4 weeks')
        ae('8d', 'in 1 week')
        ae('7d', 'in 7 days')
        ae('1w', 'in 7 days')
        ae('2d', 'in 2 days')
        ae('1d', 'tomorrow')
        ae('02:00:00', 'in 2 hours')
        ae('01:59:00', 'in 1 3/4 hours')
        ae('01:45:00', 'in 1 3/4 hours')
        ae('01:30:00', 'in 1 1/2 hours')
        ae('01:29:00', 'in 1 1/4 hours')
        ae('01:00:00', 'in an hour')
        ae('00:30:00', 'in 1/2 an hour')
        ae('00:15:00', 'in 1/4 hour')
        ae('00:02:00', 'in 2 minutes')
        ae('00:01:00', 'in 1 minute')
        ae('00:00:30', 'in a moment')
        ae('-00:00:30', 'just now')
        ae('-1d', 'yesterday')
        ae('-1y', '1 year ago')
        ae('-2y', '2 years ago')

    def testIntervalPrettyDe(self):
        gettext = i18n.gettext
        ngettext = i18n.ngettext

        i18n.gettext = i18n.degettext
        i18n.ngettext = i18n.dengettext
        
        def ae(spec, pretty):
            self.assertEqual(Interval(spec).pretty(), pretty)
        ae('2y', 'in 2 Jahren')
        ae('1y', 'in 1 Jahr')
        ae('2m', 'in 2 Monaten')
        ae('59d', 'in 1 Monat')
        ae('1m', 'in 1 Monat')
        '''ae('29d', 'in 1 month')
        ae('28d', 'in 4 weeks')
        ae('8d', 'in 1 week')
        ae('7d', 'in 7 days')
        ae('1w', 'in 7 days')
        ae('2d', 'in 2 days')
        ae('1d', 'tomorrow')
        ae('02:00:00', 'in 2 hours')
        ae('01:59:00', 'in 1 3/4 hours')
        ae('01:45:00', 'in 1 3/4 hours')
        ae('01:30:00', 'in 1 1/2 hours')
        ae('01:29:00', 'in 1 1/4 hours')
        ae('01:00:00', 'in an hour')
        ae('00:30:00', 'in 1/2 an hour')
        ae('00:15:00', 'in 1/4 hour')
        ae('00:02:00', 'in 2 minutes')
        ae('00:01:00', 'in 1 minute')
        ae('00:00:30', 'in a moment')
        ae('-00:00:30', 'just now')
        ae('-1d', 'yesterday')
        ae('-1y', '1 year ago')
        ae('-2y', '2 years ago')'''

        i18n.gettext = gettext
        i18n.ngettext = ngettext

    def testPyDatetime(self):
        d = datetime.datetime.now()
        Date(d)
        toomuch = datetime.MAXYEAR + 1
        self.assertRaises(ValueError, Date, (toomuch, 1, 1, 0, 0, 0, 0, 1, -1))

    def testSimpleTZ(self):
        ae = self.assertEqual
        # local to utc
        date = Date('2006-04-04.12:00:00', 2)
        ae(str(date), '2006-04-04.10:00:00')
        # utc to local
        date = Date('2006-04-04.10:00:00')
        date = date.local(2)
        ae(str(date), '2006-04-04.12:00:00')
        # from Date instance
        date = Date('2006-04-04.12:00:00')
        date = Date(date, 2)
        ae(str(date), '2006-04-04.10:00:00')

    def testTimestamp(self):
        ae = self.assertEqual
        date = Date('2038')
        ae(date.timestamp(), 2145916800)
        date = Date('1902')
        ae(date.timestamp(), -2145916800)
        date = Date(time.gmtime(0))
        ae(date.timestamp(), 0)
        ae(str(date), '1970-01-01.00:00:00')
        date = Date(time.gmtime(0x7FFFFFFF))
        ae(date.timestamp(), 2147483647)
        ae(str(date), '2038-01-19.03:14:07')
        date = Date('1901-12-13.20:45:52')
        ae(date.timestamp(), -0x80000000)
        ae(str(date), '1901-12-13.20:45:52')
        date = Date('9999')
        ae (date.timestamp(), 253370764800.0)
        date = Date('0033')
        ae (date.timestamp(), -61125753600.0)
        ae(str(date), '0033-01-01.00:00:00')


@skip_pytz
class TimezoneTestCase(unittest.TestCase):

    def testTZ(self):
        ae = self.assertEqual
        tz = 'Europe/Warsaw'

        # local to utc, DST
        date = Date('2006-04-04.12:00:00', tz)
        ae(str(date), '2006-04-04.10:00:00')

        # local to utc, no DST
        date = Date('2006-01-01.12:00:00', tz)
        ae(str(date), '2006-01-01.11:00:00')

        # utc to local, DST
        date = Date('2006-04-04.10:00:00')
        date = date.local(tz)
        ae(str(date), '2006-04-04.12:00:00')

        # utc to local, no DST
        date = Date('2006-01-01.10:00:00')
        date = date.local(tz)
        ae(str(date), '2006-01-01.11:00:00')

        date = Date('2006-04-04.12:00:00')
        date = Date(date, tz)
        ae(str(date), '2006-04-04.10:00:00')
        date = Date('2006-01-01.12:00:00')
        date = Date(date, tz)
        ae(str(date), '2006-01-01.11:00:00')

    def testUnrecognizedTimezone(self):
        '''Unrecognize timezone should raise key error'''

        # unrecognized timezone
        tz = 'Zoot'

        with self.assertRaises(KeyError) as cm:
            date = Date('2006-04-04.12:00:00', tz)

        self.assertEqual(cm.exception.args, ('Zoot',))

class RangeTestCase(unittest.TestCase):

    def testRange(self):
        ae = self.assertEqual
        r = Range('2006', Date)
        ae(str(r.from_value), '2006-01-01.00:00:00')
        ae(str(r.to_value), '2006-12-31.23:59:59')
        for i in range(1, 13):
            r = Range('2006-%02d'%i, Date)
            ae(str(r.from_value), '2006-%02d-01.00:00:00'%i)
            ae(str(r.to_value), '2006-%02d-%02d.23:59:59'%(i,
                calendar.mdays[i]))

# vim: set filetype=python sts=4 sw=4 et si :

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