3789983e89
Reviewed-by: darcy, ihse
92 lines
3.7 KiB
Java
92 lines
3.7 KiB
Java
/*
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* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6772689
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* @summary Test for standard-to-daylight transitions at midnight:
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* date stays on the given day.
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*/
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import java.util.Calendar;
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import java.util.Date;
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import java.util.GregorianCalendar;
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import java.util.TimeZone;
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import static java.util.GregorianCalendar.*;
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public class Bug6772689 {
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private static final int BEGIN_YEAR = 2035;
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private static final int END_YEAR = BEGIN_YEAR + 28;
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public static void main(String[] args) {
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TimeZone defaultTimeZone = TimeZone.getDefault();
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int errors = 0;
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Calendar cal = new GregorianCalendar(BEGIN_YEAR, MARCH, 1);
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String[] tzids = TimeZone.getAvailableIDs();
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try {
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for (String id : tzids) {
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TimeZone tz = TimeZone.getTimeZone(id);
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if (!tz.useDaylightTime()) {
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continue;
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}
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TimeZone.setDefault(tz);
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dateloop:
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// Use future dates because sun.util.calendar.ZoneInfo
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// delegates offset transition calculations to a SimpleTimeZone
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// (after 2038 as of JDK7).
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for (int year = BEGIN_YEAR; year < END_YEAR; year++) {
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for (int month = MARCH; month <= NOVEMBER; month++) {
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cal.set(year, month, 1, 15, 0, 0);
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int maxDom = cal.getActualMaximum(DAY_OF_MONTH);
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for (int dom = 1; dom <= maxDom; dom++) {
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Date date = new Date(year - 1900, month, dom);
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if (date.getYear()+1900 != year
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|| date.getMonth() != month
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|| date.getDate() != dom) {
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System.err.printf("%s: got %04d-%02d-%02d, expected %04d-%02d-%02d%n",
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id,
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date.getYear() + 1900,
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date.getMonth() + 1,
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date.getDate(),
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year,
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month + 1,
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dom);
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errors++;
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break dateloop;
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}
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}
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}
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}
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}
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} finally {
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// Restore the default TimeZone.
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TimeZone.setDefault(defaultTimeZone);
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}
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if (errors > 0) {
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throw new RuntimeException("Transition test failed");
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}
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}
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}
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