/* * Copyright (c) 2019, 2020, 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. */ package test.java.time.zone; import java.time.DayOfWeek; import java.time.Duration; import java.time.Instant; import java.time.LocalDate; import java.time.LocalDateTime; import java.time.LocalTime; import java.time.Month; import java.time.Year; import java.time.ZonedDateTime; import java.time.ZoneId; import java.time.ZoneOffset; import java.time.zone.ZoneOffsetTransition; import java.time.zone.ZoneOffsetTransitionRule; import java.time.zone.ZoneRules; import java.util.Collections; import java.util.List; import org.testng.annotations.DataProvider; import org.testng.annotations.Test; import static org.testng.Assert.assertEquals; import static org.testng.Assert.assertTrue; /** * @summary Tests for ZoneRules class. * * @bug 8212970 8236903 8239836 */ @Test public class TestZoneRules { private static final ZoneId DUBLIN = ZoneId.of("Europe/Dublin"); private static final ZoneId PRAGUE = ZoneId.of("Europe/Prague"); private static final ZoneId WINDHOEK = ZoneId.of("Africa/Windhoek"); private static final ZoneId CASABLANCA = ZoneId.of("Africa/Casablanca"); private static final ZoneId TOKYO = ZoneId.of("Asia/Tokyo"); private static final LocalTime ONE_AM = LocalTime.of(1, 0); private static final ZoneOffset OFF_0 = ZoneOffset.ofHours(0); private static final ZoneOffset OFF_1 = ZoneOffset.ofHours(1); private static final ZoneOffset OFF_2 = ZoneOffset.ofHours(2); private static final List EL = Collections.emptyList(); private static final ZoneOffsetTransition ZOT = ZoneId.of("America/Los_Angeles").getRules().getTransitions().get(0); private static final ZoneOffsetTransitionRule ZOTR = ZoneId.of("America/Los_Angeles").getRules().getTransitionRules().get(0); @DataProvider private Object[][] negativeDST () { return new Object[][] { // ZoneId, localDate, offset, standard offset, isDaylightSavings // Europe/Dublin for the Rule "Eire" {DUBLIN, LocalDate.of(1970, 6, 23), OFF_1, OFF_0, true}, {DUBLIN, LocalDate.of(1971, 6, 23), OFF_1, OFF_0, true}, {DUBLIN, LocalDate.of(1971, 11, 1), OFF_0, OFF_0, false}, {DUBLIN, LocalDate.of(2019, 6, 23), OFF_1, OFF_0, true}, {DUBLIN, LocalDate.of(2019, 12, 23), OFF_0, OFF_0, false}, // Europe/Prague which contains fixed negative savings (not a named Rule) {PRAGUE, LocalDate.of(1946, 9, 30), OFF_2, OFF_1, true}, {PRAGUE, LocalDate.of(1946, 10, 10), OFF_1, OFF_1, false}, {PRAGUE, LocalDate.of(1946, 12, 3), OFF_0, OFF_0, false}, {PRAGUE, LocalDate.of(1947, 2, 25), OFF_1, OFF_1, false}, {PRAGUE, LocalDate.of(1947, 4, 30), OFF_2, OFF_1, true}, // Africa/Windhoek for the Rule "Namibia" {WINDHOEK, LocalDate.of(1994, 3, 23), OFF_1, OFF_1, false}, {WINDHOEK, LocalDate.of(2016, 9, 23), OFF_2, OFF_1, true}, // Africa/Casablanca for the Rule "Morocco" Defines negative DST till 2037 as of 2019a. {CASABLANCA, LocalDate.of(1939, 9, 13), OFF_1, OFF_0, true}, {CASABLANCA, LocalDate.of(1939, 11, 20), OFF_0, OFF_0, false}, {CASABLANCA, LocalDate.of(2018, 6, 18), OFF_1, OFF_0, true}, {CASABLANCA, LocalDate.of(2019, 1, 1), OFF_1, OFF_0, true}, {CASABLANCA, LocalDate.of(2019, 5, 6), OFF_0, OFF_0, false}, {CASABLANCA, LocalDate.of(2037, 10, 5), OFF_0, OFF_0, false}, {CASABLANCA, LocalDate.of(2037, 11, 16), OFF_1, OFF_0, true}, {CASABLANCA, LocalDate.of(2038, 11, 1), OFF_1, OFF_0, true}, }; } @DataProvider private Object[][] transitionBeyondDay() { return new Object[][] { // ZoneId, LocalDateTime, beforeOffset, afterOffset // Asserts that the rule: // Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S // translates to the next day. {TOKYO, LocalDateTime.of(LocalDate.of(1948, 9, 12), ONE_AM), ZoneOffset.ofHours(10), ZoneOffset.ofHours(9)}, {TOKYO, LocalDateTime.of(LocalDate.of(1949, 9, 11), ONE_AM), ZoneOffset.ofHours(10), ZoneOffset.ofHours(9)}, {TOKYO, LocalDateTime.of(LocalDate.of(1950, 9, 10), ONE_AM), ZoneOffset.ofHours(10), ZoneOffset.ofHours(9)}, {TOKYO, LocalDateTime.of(LocalDate.of(1951, 9, 9), ONE_AM), ZoneOffset.ofHours(10), ZoneOffset.ofHours(9)}, }; } @DataProvider private Object[][] emptyTransitionList() { return new Object[][] { // days, offset, std offset, savings, isDST {7, 1, 2, -1, true}, {-7, 1, 1, 0, false}, }; } @DataProvider private Object[][] isFixedOffset() { return new Object[][] { // ZoneRules, expected {ZoneRules.of(OFF_0), true}, {ZoneRules.of(OFF_0, OFF_0, EL, EL, EL), true}, {ZoneRules.of(OFF_0, OFF_1, EL, EL, EL), false}, {ZoneRules.of(OFF_0, OFF_0, Collections.singletonList(ZOT), EL, EL), false}, {ZoneRules.of(OFF_0, OFF_0, EL, Collections.singletonList(ZOT), EL), false}, {ZoneRules.of(OFF_0, OFF_0, EL, EL, Collections.singletonList(ZOTR)), false}, }; } /** * Test ZoneRules whether the savings are positive in time zones that have * negative savings in the source TZ files. * @bug 8212970 */ @Test(dataProvider="negativeDST") public void test_NegativeDST(ZoneId zid, LocalDate ld, ZoneOffset offset, ZoneOffset stdOffset, boolean isDST) { Instant i = Instant.from(ZonedDateTime.of(ld, LocalTime.MIN, zid)); ZoneRules zr = zid.getRules(); assertEquals(zr.getOffset(i), offset); assertEquals(zr.getStandardOffset(i), stdOffset); assertEquals(zr.isDaylightSavings(i), isDST); } /** * Check the transition cutover time beyond 24:00, which should translate into the next day. * @bug 8212970 */ @Test(dataProvider="transitionBeyondDay") public void test_TransitionBeyondDay(ZoneId zid, LocalDateTime ldt, ZoneOffset before, ZoneOffset after) { ZoneOffsetTransition zot = ZoneOffsetTransition.of(ldt, before, after); ZoneRules zr = zid.getRules(); assertTrue(zr.getTransitions().contains(zot)); } /** * Make sure ZoneRules.findYear() won't throw out-of-range DateTimeException for * year calculation. * @bug 8236903 */ @Test public void test_TransitionLastRuleYear() { Instant maxLocalDateTime = LocalDateTime.of(Year.MAX_VALUE, 12, 31, 23, 59, 59, 999999999).toInstant(ZoneOffset.UTC); ZoneRules zoneRulesA = ZoneRules.of(OFF_1); ZoneOffsetTransition transition = ZoneOffsetTransition.of(LocalDateTime.ofEpochSecond(0, 0, OFF_0), OFF_0, OFF_1); ZoneOffsetTransitionRule transitionRule = ZoneOffsetTransitionRule.of(Month.JANUARY, 1, DayOfWeek.SUNDAY, LocalTime.MIDNIGHT, true, ZoneOffsetTransitionRule.TimeDefinition.STANDARD, OFF_0, OFF_0, OFF_1); ZoneRules zoneRulesB = ZoneRules.of(OFF_0, OFF_0, Collections.singletonList(transition), Collections.singletonList(transition), Collections.singletonList(transitionRule)); ZoneOffset offsetA = zoneRulesA.getOffset(maxLocalDateTime); ZoneOffset offsetB = zoneRulesB.getOffset(maxLocalDateTime); assertEquals(offsetA, offsetB); } /** * Tests whether empty "transitionList" is correctly interpreted. * @bug 8239836 */ @Test(dataProvider="emptyTransitionList") public void test_EmptyTransitionList(int days, int offset, int stdOffset, int savings, boolean isDST) { LocalDateTime transitionDay = LocalDateTime.of(2020, 1, 1, 2, 0); Instant testDay = transitionDay.plusDays(days).toInstant(ZoneOffset.UTC); ZoneOffsetTransition trans = ZoneOffsetTransition.of( transitionDay, OFF_1, OFF_2); ZoneRules rules = ZoneRules.of(OFF_1, OFF_1, Collections.singletonList(trans), Collections.emptyList(), Collections.emptyList()); assertEquals(rules.getOffset(testDay), ZoneOffset.ofHours(offset)); assertEquals(rules.getStandardOffset(testDay), ZoneOffset.ofHours(stdOffset)); assertEquals(rules.getDaylightSavings(testDay), Duration.ofHours(savings)); assertEquals(rules.isDaylightSavings(testDay), isDST); } /** * Tests whether isFixedOffset() is working correctly * @bug 8239836 */ @Test(dataProvider="isFixedOffset") public void test_IsFixedOffset(ZoneRules zr, boolean expected) { assertEquals(zr.isFixedOffset(), expected); } }