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ALF-11562 Support for building Java TZ objects from iCal timezones that use DST, with tests

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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@32749 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Nick Burch
2011-12-14 04:23:13 +00:00
parent 3e0bb94351
commit f8d8ccdd0a
2 changed files with 164 additions and 4 deletions
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91
source/java/org/alfresco/repo/calendar/CalendarHelpersTest.java
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@@ -787,7 +787,7 @@ public class CalendarHelpersTest
* Checks we correctly build the Timezone for somewhere
* that doesn't have DST (eg Brisbane)
*/
@Test public void simpleTimezoneNoDST()
@Test public void simpleTimeZoneNoDST()
{
SimpleTimeZone tz = CalendarTimezoneHelper.buildTimeZone(ICAL_TZ_BRISBANE);
@@ -803,6 +803,95 @@ public class CalendarHelpersTest
assertEquals(10*60*60*1000, tz.getOffset(date(2011,11,1).getTime()));
}
/**
* Checks we correctly build the Timezone for somewhere
* in the northern hemisphere with DST (eg London)
*/
@Test public void simpleTimeZoneNorthern()
{
SimpleTimeZone tz = CalendarTimezoneHelper.buildTimeZone(ICAL_TZ_LONDON);
assertNotNull(tz);
assertEquals("Europe/London", tz.getID());
// Does do DST
assertEquals(true, tz.useDaylightTime());
// In 2003, DST was 30th March - 26th October
assertEquals(0*60*60*1000, tz.getOffset(date(2003,3,1).getTime()));
assertEquals(1*60*60*1000, tz.getOffset(date(2003,3,31).getTime()));
assertEquals(1*60*60*1000, tz.getOffset(date(2003,9,1).getTime()));
assertEquals(1*60*60*1000, tz.getOffset(date(2003,10,25).getTime()));
assertEquals(0*60*60*1000, tz.getOffset(date(2003,11,1).getTime()));
// In 2007, DST was 25th March - 28th October
assertEquals(0*60*60*1000, tz.getOffset(date(2007,3,1).getTime()));
assertEquals(1*60*60*1000, tz.getOffset(date(2007,3,26).getTime()));
assertEquals(1*60*60*1000, tz.getOffset(date(2007,3,31).getTime()));
assertEquals(1*60*60*1000, tz.getOffset(date(2007,9,1).getTime()));
assertEquals(1*60*60*1000, tz.getOffset(date(2007,10,28).getTime()));
assertEquals(0*60*60*1000, tz.getOffset(date(2007,10,29).getTime()));
assertEquals(0*60*60*1000, tz.getOffset(date(2007,11,1).getTime()));
// In 2011, DST was 27th March - 30th October
assertEquals(0*60*60*1000, tz.getOffset(date(2011,3,1).getTime()));
assertEquals(1*60*60*1000, tz.getOffset(date(2011,3,31).getTime()));
assertEquals(1*60*60*1000, tz.getOffset(date(2011,9,1).getTime()));
assertEquals(1*60*60*1000, tz.getOffset(date(2011,10,25).getTime()));
assertEquals(0*60*60*1000, tz.getOffset(date(2011,11,1).getTime()));
}
/**
* Checks we correctly build the Timezone for somewhere
* in the southern hemisphere with DST (eg Sydney)
* Note - Sydney is GMT+11 in December, GMT+10 in June
*/
@Test public void simpleTimeZoneSouthern()
{
SimpleTimeZone tz = CalendarTimezoneHelper.buildTimeZone(ICAL_TZ_SYDNEY);
assertNotNull(tz);
assertEquals("Canberra, Melbourne, Sydney", tz.getID());
// Does do DST
assertEquals(true, tz.useDaylightTime());
// Note - things changed in 2008!
// In 2002-2003, DST was 27th October 2002 - 30th March 2003
// In 2005-2006, DST was 30th October 2005 - 2nd April 2006
// In 2007-2008, DST was 28th October 2007 - 6th April 2008
// In 2008-2009, DST was 5th October 2008 - 5th April 2009
assertEquals(10*60*60*1000, tz.getOffset(date(2008,6,1).getTime()));
assertEquals(10*60*60*1000, tz.getOffset(date(2008,10,1).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2008,10,6).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2008,12,1).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2009,1,5).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2009,4,4).getTime()));
assertEquals(10*60*60*1000, tz.getOffset(date(2009,4,6).getTime()));
assertEquals(10*60*60*1000, tz.getOffset(date(2009,5,1).getTime()));
// In 2009-2010, DST was 4th October 2009 - 4th April 2010
assertEquals(10*60*60*1000, tz.getOffset(date(2009,6,1).getTime()));
assertEquals(10*60*60*1000, tz.getOffset(date(2009,10,1).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2009,10,6).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2009,12,1).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2010,1,5).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2010,4,3).getTime()));
assertEquals(10*60*60*1000, tz.getOffset(date(2010,4,5).getTime()));
assertEquals(10*60*60*1000, tz.getOffset(date(2010,5,1).getTime()));
// In 2010-2011, DST was 3rd Oct 2010 - 3rd April 2011
assertEquals(10*60*60*1000, tz.getOffset(date(2010,6,1).getTime()));
assertEquals(10*60*60*1000, tz.getOffset(date(2010,10,1).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2010,10,6).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2010,12,1).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2011,1,5).getTime()));
assertEquals(11*60*60*1000, tz.getOffset(date(2011,4,2).getTime()));
assertEquals(10*60*60*1000, tz.getOffset(date(2011,4,4).getTime()));
assertEquals(10*60*60*1000, tz.getOffset(date(2011,5,1).getTime()));
}
private static class RecurrenceHelper extends CalendarRecurrenceHelper
{
protected static void buildDailyRecurrences(Calendar currentDate, List<Date> dates,