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Make CSV import/export compatible across Python versions (also RDBMS journals) (issue 2550976, issue 2550975). The roundup-admin export and import commands are used for migrating between different database backends. It is desirable that they should be usable also for migrations between Python 2 and Python 3, and in some cases (e.g. with the anydbm backend) this may be required. To be usable for such migrations, the format of the generated CSV files needs to be stable, meaning the same as currently used with Python 2. The export process uses repr() to produce the fields in the CSV files and eval() to convert them back to Python data structures. repr() of strings with non-ASCII characters produces different results for Python 2 and Python 3. This patch adds repr_export and eval_import functions to roundup/anypy/strings.py which provide the required operations that are just repr() and eval() in Python 2, but are more complicated in Python 3 to use data representations compatible with Python 2. These functions are then used in the required places for export and import. repr() and eval() are also used in storing the dict of changed values in the journal for the RDBMS backends. It is similarly desirable that the database be compatible between Python 2 and Python 3, so that export and import do not need to be used for a migration between Python versions for non-anydbm back ends. Thus, this patch changes rdbms_common.py in the places involved in storing journals in the database, not just in those involved in import/export. Given this patch, import/export with non-ASCII characters appear based on some limited testing to work across Python versions, and an instance using the sqlite backend appears to be compatible between Python versions without needing import/export, *if* the sessions/otks databases (which use anydbm) are deleted when changing Python version.
author Joseph Myers <jsm@polyomino.org.uk>
date Sun, 02 Sep 2018 23:48:04 +0000
parents 64c4e43fbb84
children db429c75caec
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):
        self.old_gettext_ = i18n.gettext
        self.old_ngettext_ = i18n.ngettext
        i18n.gettext = i18n.get_translation(language='C').gettext
        i18n.ngettext = i18n.get_translation(language='C').ngettext

    def tearDown(self):
        i18n.gettext = self.old_gettext_
        i18n.ngettext = self.old_ngettext_

    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.assertEquals(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 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')


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 :
Roundup Issue Tracker: http://roundup-tracker.org/