/* * Copyright (c) 2022, 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 8285838 * @library /test/lib * @summary This test will ensure that daylight savings rules are followed * appropriately when setting a custom timezone ID via the TZ env variable. * @requires os.family != "windows" * @run main/othervm CustomTzIDCheckDST
*/ import java.util.Calendar; import java.util.Date; import java.util.List; import java.util.SimpleTimeZone; import java.time.DayOfWeek; import java.time.ZonedDateTime; import java.time.temporal.TemporalAdjusters; import jdk.test.lib.process.ProcessTools; import jdk.test.lib.process.OutputAnalyzer; publicclass CustomTzIDCheckDST { privatestatic String CUSTOM_TZ = "MEZ-1MESZ,M3.5.0,M10.5.0"; publicstaticvoid main(String args[]) throws Throwable { if (args.length == 0) {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(List.of("CustomTzIDCheckDST", "runTZTest"));
pb.environment().put("TZ", CUSTOM_TZ);
OutputAnalyzer output = ProcessTools.executeProcess(pb);
output.shouldHaveExitValue(0);
} else {
runTZTest();
}
}
/* TZ code will always be set to "MEZ-1MESZ,M3.5.0,M10.5.0". * This ensures the transition periods for Daylights Savings should be at March's last * Sunday and October's last Sunday.
*/ privatestaticvoid runTZTest() {
Date time = new Date(); if (new SimpleTimeZone(3600000, "MEZ-1MESZ", Calendar.MARCH, -1, Calendar.SUNDAY, 0,
Calendar.OCTOBER, -1, Calendar.SUNDAY, 0).inDaylightTime(time)) { // We are in Daylight savings period. if (time.toString().endsWith("GMT+02:00 " + Integer.toString(time.getYear() + 1900))) return;
} else { if (time.toString().endsWith("GMT+01:00 " + Integer.toString(time.getYear() + 1900))) return;
}
// Reaching here means time zone did not match up as expected. thrownew RuntimeException("Got unexpected timezone information: " + time);
}
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