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issue2551142 - Import ... unique constraint failure. Full title: Import of retired node with username after active node fails with unique constraint failure. Fix this in two ways: 1) sort export on keyname, retired status so that retired nodes for a given keyname are before the acive node in the export file. This stops generating a broken export. 2) handle importing a broken export by deactivating/fixing up/clearing the active record's unique index entry temporarily. Redo the import of the retired node and resetting the active record to active. The fixup changes the unique index (keyvalue, __retired__) from (keyvalue, 0) to (keyvalue, -1). Then it retries the failed import of a retired record with keyvalue. I use -1 in case something goes wrong, It makes the record stand out in the database allowing hand recovery if needed. Rather than using -1 I could just use the id of the record like a normal retirement does. If the retry of the import fails (raises exception), reset the active record from -1 back to 0 and raise the exception. If it succeeds, reset the active record from -1 back to 0 and continue the import process. Reset __retired__ from -1 to 0 on every import. I don't think the performance loss from resetting on every exception matters as there should be very few exceptions. Also this makes the code more understandable. There is no reason to leave the -1 value in place and do a bulk rest of -1 to 0 after the class csv file is loaded. Also if a fixup is needed it is logged at level info with the rest of the database logging. Also success of the fixup is logged. Fixup failure generates a propagated exception.
author John Rouillard <rouilj@ieee.org>
date Mon, 07 Jun 2021 09:58:39 -0400
parents d76291836523
children 0f0cee081990
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.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 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 :
Roundup Issue Tracker: http://roundup-tracker.org/