123 lines
5.0 KiB
Java
123 lines
5.0 KiB
Java
/*
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* Copyright (c) 2002, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4514831
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* @summary Confirm that GregorianCalendar.roll() works properly during
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* transition from Daylight Saving Time to Standard Time.
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* @run junit bug4514831
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*/
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import java.util.GregorianCalendar;
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import java.util.Locale;
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import java.util.TimeZone;
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import static java.util.GregorianCalendar.DAY_OF_MONTH;
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import static java.util.GregorianCalendar.DAY_OF_WEEK;
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import static java.util.GregorianCalendar.DAY_OF_WEEK_IN_MONTH;
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import static java.util.GregorianCalendar.DAY_OF_YEAR;
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import static java.util.GregorianCalendar.OCTOBER;
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import static java.util.GregorianCalendar.THURSDAY;
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import org.junit.jupiter.api.AfterAll;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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public class bug4514831 {
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// Data of 7 rolls in the form of a string for the respective field
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private static final String expectedDayOfYearData = "27-28 28-29 29-30 30-31 31-1 1-2 2-3 ";
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private static final String expectedDayOfWeekData = "27-28 28-29 29-30 30-31 31-25 25-26 26-27 ";
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private static final String expectedDayOfWeekInMonthData = "1-8 8-15 15-22 22-29 29-1 1-8 8-15 ";
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private static final TimeZone savedTz = TimeZone.getDefault();
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private static final Locale savedLocale = Locale.getDefault();
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// Save JVM default Locale and TimeZone
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@BeforeAll
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void initAll() {
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Locale.setDefault(Locale.US);
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TimeZone.setDefault(TimeZone.getTimeZone("US/Pacific"));
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}
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// Restore JVM default Locale and TimeZone
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@AfterAll
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void tearDownAll() {
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Locale.setDefault(savedLocale);
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TimeZone.setDefault(savedTz);
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}
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/*
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* Test some roll values during transition (DAY_OF_YEAR field). Uses
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* the boolean roll method. Roll multiple times and attach the returned
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* values to a long string which is then compared to the expected data.
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*/
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public void rollDayOfYearTest() {
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StringBuilder actualRollData = new StringBuilder();
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GregorianCalendar cal = new GregorianCalendar(2001, OCTOBER, 27);
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for (int i = 0; i < 7; i++) {
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actualRollData.append(cal.get(DAY_OF_MONTH)).append("-");
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cal.roll(DAY_OF_YEAR, true);
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actualRollData.append(cal.get(DAY_OF_MONTH)).append(" ");
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}
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assertEquals(expectedDayOfYearData, actualRollData.toString(),
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"Wrong roll(DAY_OF_YEAR) transition");
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}
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/*
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* Test some roll values during transition (DAY_OF_WEEK field). Uses
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* the boolean roll method. Roll multiple times and attach the returned
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* values to a long string which is then compared to the expected data.
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*/
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public void rollDayOfWeekTest() {
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StringBuilder actualRollData = new StringBuilder();
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GregorianCalendar cal = new GregorianCalendar(2001, OCTOBER, 27);
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cal.setFirstDayOfWeek(THURSDAY);
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for (int i = 0; i < 7; i++) {
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actualRollData.append(cal.get(DAY_OF_MONTH)).append("-");
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cal.roll(DAY_OF_WEEK, true);
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actualRollData.append(cal.get(DAY_OF_MONTH)).append(" ");
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}
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assertEquals(expectedDayOfWeekData, actualRollData.toString(),
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"Wrong roll(DAY_OF_WEEK) transition");
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}
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/*
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* Test some roll values during transition (DAY_OF_WEEK_IN_MONTH field). Uses
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* the boolean roll method. Roll multiple times and attach the returned
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* values to a long string which is then compared to the expected data.
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*/
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public void rollDayOfWeekInMonthTest() {
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StringBuilder actualRollData = new StringBuilder();
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GregorianCalendar cal = new GregorianCalendar(2001, OCTOBER, 1);
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for (int i = 0; i < 7; i++) {
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actualRollData.append(cal.get(DAY_OF_MONTH)).append("-");
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cal.roll(DAY_OF_WEEK_IN_MONTH, true);
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actualRollData.append(cal.get(DAY_OF_MONTH)).append(" ");
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}
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assertEquals(expectedDayOfWeekInMonthData, actualRollData.toString(),
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"Wrong roll(DAY_OF_WEEK_IN_MONTH) transition");
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}
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}
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