| /* |
| * 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"); |
| } |
| } |
| } |