| /* |
| * Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4278609 4761696 |
| * @library /java/text/testlib |
| * @summary Make sure to handle DST transition ending at 0:00 January 1. |
| */ |
| |
| import java.text.SimpleDateFormat; |
| import java.util.Calendar; |
| import java.util.Date; |
| import java.util.GregorianCalendar; |
| import java.util.Locale; |
| import java.util.SimpleTimeZone; |
| import java.util.TimeZone; |
| |
| public class TransitionTest extends IntlTest { |
| |
| public static void main(String[] args) throws Exception { |
| new TransitionTest().run(args); |
| } |
| |
| public void Test4278609() { |
| SimpleTimeZone tz = new SimpleTimeZone(0, "MyTimeZone", |
| /* DST start day: August, 1, 0:00 */ |
| Calendar.AUGUST, 1, 0, 0, |
| /* DST end day: January, 1, 0:00 (wall-clock)*/ |
| Calendar.JANUARY, 1, 0, 0, |
| 60 * 60 * 1000); |
| |
| Calendar cal = new GregorianCalendar(TimeZone.getTimeZone("GMT")); |
| |
| // setting a date using GMT zone just after the end rule of tz zone |
| cal.clear(); |
| cal.set(Calendar.ERA, GregorianCalendar.AD); |
| cal.set(1998, Calendar.DECEMBER, 31, 23, 01, 00); |
| |
| Date date = cal.getTime(); |
| |
| int millis = cal.get(Calendar.HOUR_OF_DAY) * 3600000 |
| + cal.get(Calendar.MINUTE) * 60000 |
| + cal.get(Calendar.SECOND) * 1000 |
| + cal.get(Calendar.MILLISECOND); |
| /* we must use standard local time */ |
| millis += tz.getRawOffset(); |
| |
| int offset = tz.getOffset(cal.get(Calendar.ERA), |
| cal.get(Calendar.YEAR), |
| cal.get(Calendar.MONTH), |
| cal.get(Calendar.DATE), |
| cal.get(Calendar.DAY_OF_WEEK), |
| millis); |
| |
| if (offset != 0) { |
| SimpleDateFormat format = new SimpleDateFormat("dd MMM HH:mm:ss zzz", |
| Locale.US); |
| format.setTimeZone(tz); |
| errln("Wrong DST transition: " + tz |
| + "\na date just after DST = " + format.format(date) |
| + "\ngetOffset = " + offset); |
| } |
| } |
| |
| /* |
| * 4761696: Rewrite SimpleTimeZone to support correct DST transitions |
| * |
| * Derived from JCK test cases some of which specify wrong day of week values. |
| */ |
| public void Test4761696() { |
| GregorianCalendar cal = new GregorianCalendar(TimeZone.getTimeZone("GMT")); |
| |
| // test#1 |
| int rawOffset = -43200000; |
| int saving = 1800000; |
| int timeOfDay = 84600001; |
| SimpleTimeZone tz = new SimpleTimeZone(rawOffset, "stz", |
| Calendar.JULY, 1, 0, 0, |
| Calendar.JANUARY, 1, 0, 0, |
| saving); |
| int year = Integer.MIN_VALUE; |
| tz.setStartYear(year); |
| int offset = tz.getOffset(GregorianCalendar.AD, |
| year, |
| Calendar.DECEMBER, |
| 31, |
| 1, // should be SATURDAY |
| timeOfDay); |
| int y = (int) mod((long)year, 28L); // 28-year cycle |
| cal.clear(); |
| cal.set(cal.ERA, cal.AD); |
| cal.set(y, Calendar.DECEMBER, 31); |
| cal.set(cal.MILLISECOND, timeOfDay); |
| long localtime = cal.getTimeInMillis() + rawOffset; // local standard time |
| |
| cal.clear(); |
| cal.set(cal.ERA, cal.AD); |
| cal.set(y + 1, Calendar.JANUARY, 1); |
| cal.set(cal.MILLISECOND, -saving); |
| long endTime = cal.getTimeInMillis() + rawOffset; |
| long expectedOffset = (localtime < endTime) ? rawOffset + saving : rawOffset; |
| if (offset != expectedOffset) { |
| errln("test#1: wrong offset: got "+offset+", expected="+expectedOffset); |
| } |
| |
| // test#2 |
| saving = 1; |
| timeOfDay = 0; |
| tz = new SimpleTimeZone(rawOffset, "stz", |
| Calendar.JULY, 1, 0, 0, |
| Calendar.JANUARY, 1, 0, 0, |
| saving); |
| tz.setStartYear(year); |
| offset = tz.getOffset(GregorianCalendar.AD, |
| year, |
| Calendar.AUGUST, |
| 15, |
| 1, // should be MONDAY |
| timeOfDay); |
| y = (int) mod((long)year, 28L); // 28-year cycle |
| cal.clear(); |
| cal.set(y, Calendar.AUGUST, 15); |
| cal.set(cal.MILLISECOND, timeOfDay); |
| localtime = cal.getTimeInMillis() + rawOffset; // local standard time |
| |
| cal.clear(); |
| cal.set(y + 1, Calendar.JANUARY, 1); |
| cal.set(cal.MILLISECOND, -saving); |
| endTime = cal.getTimeInMillis() + rawOffset; |
| expectedOffset = (localtime < endTime) ? rawOffset + saving : rawOffset; |
| if (offset != expectedOffset) { |
| errln("Wrong offset: got "+offset+", expected="+expectedOffset); |
| } |
| |
| rawOffset = 43200000; |
| saving = 1; |
| timeOfDay = 3599998; |
| tz = new SimpleTimeZone(rawOffset, "stz", |
| Calendar.JULY, 1, 0, 3600000, |
| Calendar.JANUARY, 1, 0, 3600000, |
| saving); |
| tz.setStartYear(year); |
| offset = tz.getOffset(GregorianCalendar.AD, |
| year, |
| Calendar.JANUARY, |
| 1, |
| 1, |
| timeOfDay); |
| y = (int) mod((long)year, 28L); // 28-year cycle |
| cal.clear(); |
| cal.set(y, Calendar.JANUARY, 1); |
| cal.set(cal.MILLISECOND, timeOfDay); |
| localtime = cal.getTimeInMillis() + rawOffset; // local standard time |
| |
| cal.clear(); |
| cal.set(y + 1, Calendar.JANUARY, 1); |
| cal.set(cal.MILLISECOND, 3600000-saving); |
| endTime = cal.getTimeInMillis() + rawOffset; |
| expectedOffset = (localtime < endTime) ? rawOffset + saving : rawOffset; |
| if (offset != expectedOffset) { |
| errln("test#2: wrong offset: got "+offset+", expected="+expectedOffset); |
| } |
| |
| // test#3 |
| rawOffset = -43200000; |
| saving = 1800000; |
| timeOfDay = 84600001; |
| tz = new SimpleTimeZone(rawOffset, "stz", |
| Calendar.SEPTEMBER, 1, 0, 0, |
| Calendar.MARCH, 1, 0, 0, |
| saving); |
| tz.setStartYear(year); |
| offset = tz.getOffset(GregorianCalendar.AD, |
| year, |
| Calendar.FEBRUARY, |
| 28, |
| 1, |
| timeOfDay); |
| y = (int) mod((long)year, 28L); // 28-year cycle |
| cal.clear(); |
| cal.set(y, Calendar.FEBRUARY, 28); |
| cal.set(cal.MILLISECOND, timeOfDay); |
| localtime = cal.getTimeInMillis() + rawOffset; // local standard time |
| |
| cal.clear(); |
| cal.set(y, Calendar.MARCH, 1); |
| cal.set(cal.MILLISECOND, -saving); |
| endTime = cal.getTimeInMillis() + rawOffset; |
| expectedOffset = (localtime < endTime) ? rawOffset + saving : rawOffset; |
| if (offset != expectedOffset) { |
| errln("test#3: wrong offset: got "+offset+", expected="+expectedOffset); |
| } |
| |
| // test#4 |
| rawOffset = -43200000; |
| saving = 1; |
| timeOfDay = 0; |
| tz = new SimpleTimeZone(rawOffset, "stz", |
| Calendar.JANUARY, -4, 1, 3600000, |
| Calendar.JULY, -4, 1, 3600000, |
| saving); |
| tz.setStartYear(year); |
| offset = tz.getOffset(GregorianCalendar.AD, |
| year, |
| Calendar.JANUARY, |
| 10, |
| 2, // should be 1 (SUNDAY) |
| timeOfDay); |
| y = (int) mod((long)year, 28L); // 28-year cycle |
| cal.clear(); |
| cal.set(y, Calendar.JANUARY, 10); |
| cal.set(cal.MILLISECOND, timeOfDay); |
| localtime = cal.getTimeInMillis() + rawOffset; // local standard time |
| |
| cal.clear(); |
| cal.set(cal.YEAR, y); |
| cal.set(cal.MONTH, Calendar.JANUARY); |
| cal.set(cal.DAY_OF_MONTH, 8); |
| cal.set(cal.WEEK_OF_MONTH, cal.getActualMaximum(cal.WEEK_OF_MONTH)-4+1); |
| cal.set(cal.DAY_OF_WEEK, 1); |
| cal.set(cal.MILLISECOND, 3600000-saving); |
| long startTime = cal.getTimeInMillis() + rawOffset; |
| expectedOffset = (localtime >= startTime) ? rawOffset + saving : rawOffset; |
| if (offset != expectedOffset) { |
| errln("test#4: wrong offset: got "+offset+", expected="+expectedOffset); |
| } |
| |
| // test#5 |
| rawOffset = 0; |
| saving = 3600000; |
| timeOfDay = 7200000; |
| year = 1982; |
| tz = new SimpleTimeZone(rawOffset, "stz", |
| Calendar.APRIL, 1, 0, 7200000, |
| Calendar.OCTOBER, 10, 0, 7200000, |
| saving); |
| offset = tz.getOffset(GregorianCalendar.AD, |
| year, |
| Calendar.OCTOBER, |
| 10, |
| 1, |
| timeOfDay); |
| cal.clear(); |
| cal.set(year, Calendar.OCTOBER, 10); |
| cal.set(cal.MILLISECOND, timeOfDay); |
| localtime = cal.getTimeInMillis() + rawOffset; // local standard time |
| |
| cal.clear(); |
| cal.set(year, Calendar.OCTOBER, 10); |
| cal.set(cal.MILLISECOND, 7200000-saving); |
| endTime = cal.getTimeInMillis() + rawOffset; |
| expectedOffset = (localtime < endTime) ? rawOffset + saving : rawOffset; |
| if (offset != expectedOffset) { |
| errln("test#5: wrong offset: got "+offset+", expected="+expectedOffset); |
| } |
| } |
| |
| public static final long floorDivide(long n, long d) { |
| return ((n >= 0) ? |
| (n / d) : (((n + 1L) / d) - 1L)); |
| } |
| |
| public static final long mod(long x, long y) { |
| return (x - y * floorDivide(x, y)); |
| } |
| } |
