| /* |
| * Copyright (c) 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 8152077 |
| * @summary Make sure that roll() with HOUR/HOUR_OF_DAY works around standard/daylight |
| * time transitions |
| */ |
| |
| import java.util.Calendar; |
| import java.util.GregorianCalendar; |
| import java.util.TimeZone; |
| import static java.util.Calendar.*; |
| |
| public class Bug8152077 { |
| private static final TimeZone LA = TimeZone.getTimeZone("America/Los_Angeles"); |
| private static final TimeZone BR = TimeZone.getTimeZone("America/Sao_Paulo"); |
| |
| private static final int[] ALLDAY_HOURS = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, |
| 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 |
| }; |
| private static final int[] AM_HOURS = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 |
| }; |
| private static final int[] PM_HOURS = { // in 24-hour clock |
| 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 |
| }; |
| |
| private static int errors; |
| |
| public static void main(String[] args) { |
| TimeZone initialTz = TimeZone.getDefault(); |
| try { |
| testRoll(LA, new int[] { 2016, MARCH, 13 }, |
| new int[] { 0, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, |
| 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 }); |
| testRoll(LA, new int[] { 2016, MARCH, 13 }, |
| new int[] { 0, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11 }); |
| testRoll(LA, new int[] { 2016, MARCH, 13 }, PM_HOURS); |
| |
| testRoll(LA, new int[] { 2016, NOVEMBER, 6 }, ALLDAY_HOURS); |
| testRoll(LA, new int[] { 2016, NOVEMBER, 6 }, AM_HOURS); |
| testRoll(LA, new int[] { 2016, NOVEMBER, 6 }, PM_HOURS); |
| |
| testRoll(BR, new int[] { 2016, FEBRUARY, 21 }, ALLDAY_HOURS); |
| testRoll(BR, new int[] { 2016, FEBRUARY, 21 }, AM_HOURS); |
| testRoll(BR, new int[] { 2016, FEBRUARY, 21 }, PM_HOURS); |
| |
| testRoll(BR, new int[] { 2016, OCTOBER, 15 }, ALLDAY_HOURS); |
| testRoll(BR, new int[] { 2016, OCTOBER, 15 }, PM_HOURS); |
| testRoll(BR, new int[] { 2016, OCTOBER, 16 }, |
| new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, |
| 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 }); |
| testRoll(BR, new int[] { 2016, OCTOBER, 16 }, |
| new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }); |
| testRoll(BR, new int[] { 2016, OCTOBER, 16 }, PM_HOURS); |
| } finally { |
| TimeZone.setDefault(initialTz); |
| } |
| if (errors > 0) { |
| throw new RuntimeException("Test failed"); |
| } |
| } |
| |
| private static void testRoll(TimeZone tz, int[] params, int[] sequence) { |
| TimeZone.setDefault(tz); |
| for (int i = 0; i < sequence.length; i++) { |
| testRoll(+1, params, sequence, i); |
| testRoll(-1, params, sequence, i); |
| } |
| } |
| |
| // amount must be 1 or -1. |
| private static void testRoll(int amount, int[] params, int[] sequence, int startIndex) { |
| int year = params[0]; |
| int month = params[1]; |
| int dayOfMonth = params[2]; |
| int hourOfDay = sequence[startIndex]; |
| Calendar cal = new GregorianCalendar(year, month, dayOfMonth, |
| hourOfDay, 0, 0); |
| int ampm = cal.get(AM_PM); |
| |
| int length = sequence.length; |
| int count = length * 2; |
| int field = (length > 12) ? HOUR_OF_DAY : HOUR; |
| |
| System.out.printf("roll(%s, %2d) starting from %s%n", |
| (field == HOUR) ? "HOUR" : "HOUR_OF_DAY", amount, cal.getTime()); |
| for (int i = 0; i < count; i++) { |
| int index = (amount > 0) ? (startIndex + i + 1) % length |
| : Math.floorMod(startIndex - i - 1, length); |
| int expected = sequence[index]; |
| if (field == HOUR) { |
| expected %= 12; |
| } |
| cal.roll(field, amount); |
| int value = cal.get(field); |
| if (value != expected) { |
| System.out.println("Unexpected field value: got=" + value |
| + ", expected=" + expected); |
| errors++; |
| } |
| if (cal.get(DAY_OF_MONTH) != dayOfMonth) { |
| System.out.println("DAY_OF_MONTH changed: " + dayOfMonth |
| + " to " + cal.get(DAY_OF_MONTH)); |
| } |
| if (field == HOUR && cal.get(AM_PM) != ampm) { |
| System.out.println("AM_PM changed: " + ampm + " to " + cal.get(AM_PM)); |
| errors++; |
| } |
| } |
| } |
| } |