1 /* 2 * Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 4514831 27 * @summary Confirm that GregorianCalendar.roll() works properly during transition from Daylight Saving Time to Standard Time. 28 */ 29 30 import java.util.*; 31 32 public class bug4514831 { 33 34 public static void main(String[] args) { 35 Locale savedLocale = Locale.getDefault(); 36 TimeZone savedTimeZone = TimeZone.getDefault(); 37 boolean err = false; 38 39 String golden_data1 ="27-28 28-29 29-30 30-31 31-1 1-2 2-3 "; 40 String golden_data2 ="27-28 28-29 29-30 30-31 31-25 25-26 26-27 "; 41 String golden_data3 ="1-8 8-15 15-22 22-29 29-1 1-8 8-15 "; 42 43 try { 44 Locale.setDefault(Locale.US); 45 TimeZone.setDefault(TimeZone.getTimeZone("US/Pacific")); 46 47 String test_roll = ""; 48 GregorianCalendar c_roll = new GregorianCalendar(2001, Calendar.OCTOBER, 27); 49 for (int i=0; i < 7; i++) { 50 test_roll += c_roll.get(c_roll.DAY_OF_MONTH) + "-"; 51 c_roll.roll(c_roll.DAY_OF_YEAR, true); 52 test_roll += c_roll.get(c_roll.DAY_OF_MONTH) + " "; 53 } 54 if (!test_roll.equals(golden_data1)) { 55 err = true; 56 System.err.println("Wrong roll(DAY_OF_YEAR) transition: got "+ 57 test_roll + "expected " + golden_data1); 58 } 59 60 test_roll = ""; 61 c_roll = new GregorianCalendar(2001, Calendar.OCTOBER, 27); 62 c_roll.setFirstDayOfWeek(Calendar.THURSDAY); 63 for (int i=0; i < 7; i++) { 64 test_roll += c_roll.get(c_roll.DAY_OF_MONTH) + "-"; 65 c_roll.roll(c_roll.DAY_OF_WEEK, true); 66 test_roll += c_roll.get(c_roll.DAY_OF_MONTH) + " "; 67 } 68 if (!test_roll.equals(golden_data2)) { 69 err = true; 70 System.err.println("Wrong roll(DAY_OF_WEEK) transition: got "+ 71 test_roll + "expected " + golden_data2); 72 } 73 74 test_roll = ""; 75 c_roll = new GregorianCalendar(2001, Calendar.OCTOBER, 1); 76 for (int i=0; i < 7; i++) { 77 test_roll += c_roll.get(c_roll.DAY_OF_MONTH) + "-"; 78 c_roll.roll(c_roll.DAY_OF_WEEK_IN_MONTH, true); 79 test_roll += c_roll.get(c_roll.DAY_OF_MONTH) + " "; 80 } 81 if (!test_roll.equals(golden_data3)) { 82 err = true; 83 System.err.println("Wrong roll(DAY_OF_WEEK_IN_MONTH) transition: got "+ 84 test_roll + "expected " + golden_data3); 85 } 86 } finally { 87 Locale.setDefault(savedLocale); 88 TimeZone.setDefault(savedTimeZone); 89 } 90 91 if (err) { 92 throw new RuntimeException("Wrong roll() transition"); 93 } 94 } 95 }