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/*
* 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 4514831
* @summary Confirm that GregorianCalendar.roll() works properly during transition from Daylight Saving Time to Standard Time.
*/
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.TimeZone;
import static java.util.GregorianCalendar.*;
public class bug4514831 {
public static void main(String[] args) {
Locale savedLocale = Locale.getDefault();
TimeZone savedTimeZone = TimeZone.getDefault();
boolean err = false;
String golden_data1 = "27-28 28-29 29-30 30-31 31-1 1-2 2-3 ";
String golden_data2 = "27-28 28-29 29-30 30-31 31-25 25-26 26-27 ";
String golden_data3 = "1-8 8-15 15-22 22-29 29-1 1-8 8-15 ";
try {
Locale.setDefault(Locale.US);
TimeZone.setDefault(TimeZone.getTimeZone("US/Pacific"));
String test_roll = "";
GregorianCalendar c_roll = new GregorianCalendar(2001, OCTOBER, 27);
for (int i = 0; i < 7; i++) {
test_roll += c_roll.get(DAY_OF_MONTH) + "-";
c_roll.roll(DAY_OF_YEAR, true);
test_roll += c_roll.get(DAY_OF_MONTH) + " ";
}
if (!test_roll.equals(golden_data1)) {
err = true;
System.err.println("Wrong roll(DAY_OF_YEAR) transition: got "
+ test_roll + "expected " + golden_data1);
}
test_roll = "";
c_roll = new GregorianCalendar(2001, OCTOBER, 27);
c_roll.setFirstDayOfWeek(THURSDAY);
for (int i = 0; i < 7; i++) {
test_roll += c_roll.get(DAY_OF_MONTH) + "-";
c_roll.roll(DAY_OF_WEEK, true);
test_roll += c_roll.get(DAY_OF_MONTH) + " ";
}
if (!test_roll.equals(golden_data2)) {
err = true;
System.err.println("Wrong roll(DAY_OF_WEEK) transition: got "
+ test_roll + "expected " + golden_data2);
}
test_roll = "";
c_roll = new GregorianCalendar(2001, OCTOBER, 1);
for (int i = 0; i < 7; i++) {
test_roll += c_roll.get(DAY_OF_MONTH) + "-";
c_roll.roll(DAY_OF_WEEK_IN_MONTH, true);
test_roll += c_roll.get(DAY_OF_MONTH) + " ";
}
if (!test_roll.equals(golden_data3)) {
err = true;
System.err.println("Wrong roll(DAY_OF_WEEK_IN_MONTH) transition: got "
+ test_roll + "expected " + golden_data3);
}
} finally {
Locale.setDefault(savedLocale);
TimeZone.setDefault(savedTimeZone);
}
if (err) {
throw new RuntimeException("Wrong roll() transition");
}
}
}
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