1 /* 2 * Copyright (c) 2019, 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 package test.java.time.zone; 25 26 import static org.testng.Assert.assertEquals; 27 28 import java.time.Instant; 29 import java.time.LocalDate; 30 import java.time.LocalDateTime; 31 import java.time.LocalTime; 32 import java.time.ZonedDateTime; 33 import java.time.ZoneId; 34 import java.time.ZoneOffset; 35 import java.time.zone.ZoneOffsetTransition; 36 import java.time.zone.ZoneRules; 37 38 import org.testng.annotations.Test; 39 import org.testng.annotations.DataProvider; 40 import static org.testng.Assert.assertEquals; 41 import static org.testng.Assert.assertTrue; 42 43 /** 44 * @summary Test ZoneRules whether the savings are positive in time zones that have 45 * negative savings in the source TZ files. Also, check the transition cutover 46 * time beyond 24:00, which should translate into the next day. 47 * 48 * @bug 8212970 49 */ 50 @Test 51 public class TestZoneRules { 52 53 private static final ZoneId DUBLIN = ZoneId.of("Europe/Dublin"); 54 private static final ZoneId PRAGUE = ZoneId.of("Europe/Prague"); 55 private static final ZoneId WINDHOEK = ZoneId.of("Africa/Windhoek"); 56 private static final ZoneId CASABLANCA = ZoneId.of("Africa/Casablanca"); 57 58 private static final ZoneId TOKYO = ZoneId.of("Asia/Tokyo"); 59 private static final LocalTime ONE_AM = LocalTime.of(1, 0); 60 61 @DataProvider 62 private Object[][] negativeDST () { 63 return new Object[][] { 64 // ZoneId, localDate, offset, standard offset, isDaylightSavings 65 // Europe/Dublin for the Rule "Eire" 66 {DUBLIN, LocalDate.of(1970, 6, 23), ZoneOffset.ofHours(1), ZoneOffset.ofHours(0), true}, 67 {DUBLIN, LocalDate.of(1971, 6, 23), ZoneOffset.ofHours(1), ZoneOffset.ofHours(0), true}, 68 {DUBLIN, LocalDate.of(1971, 11, 1), ZoneOffset.ofHours(0), ZoneOffset.ofHours(0), false}, 69 {DUBLIN, LocalDate.of(2019, 6, 23), ZoneOffset.ofHours(1), ZoneOffset.ofHours(0), true}, 70 {DUBLIN, LocalDate.of(2019, 12, 23), ZoneOffset.ofHours(0), ZoneOffset.ofHours(0), false}, 71 72 // Europe/Prague which contains fixed negative savings (not a named Rule) 73 {PRAGUE, LocalDate.of(1946, 9, 30), ZoneOffset.ofHours(2), ZoneOffset.ofHours(1), true}, 74 {PRAGUE, LocalDate.of(1946, 10, 10), ZoneOffset.ofHours(1), ZoneOffset.ofHours(1), false}, 75 {PRAGUE, LocalDate.of(1946, 12, 3), ZoneOffset.ofHours(0), ZoneOffset.ofHours(0), false}, 76 {PRAGUE, LocalDate.of(1947, 2, 25), ZoneOffset.ofHours(1), ZoneOffset.ofHours(1), false}, 77 {PRAGUE, LocalDate.of(1947, 4, 30), ZoneOffset.ofHours(2), ZoneOffset.ofHours(1), true}, 78 79 // Africa/Windhoek for the Rule "Namibia" 80 {WINDHOEK, LocalDate.of(1994, 3, 23), ZoneOffset.ofHours(1), ZoneOffset.ofHours(1), false}, 81 {WINDHOEK, LocalDate.of(2016, 9, 23), ZoneOffset.ofHours(2), ZoneOffset.ofHours(1), true}, 82 83 // Africa/Casablanca for the Rule "Morocco" Defines negative DST till 2037 as of 2019a. 84 {CASABLANCA, LocalDate.of(1939, 9, 13), ZoneOffset.ofHours(1), ZoneOffset.ofHours(0), true}, 85 {CASABLANCA, LocalDate.of(1939, 11, 20), ZoneOffset.ofHours(0), ZoneOffset.ofHours(0), false}, 86 {CASABLANCA, LocalDate.of(2018, 6, 18), ZoneOffset.ofHours(1), ZoneOffset.ofHours(0), true}, 87 {CASABLANCA, LocalDate.of(2019, 1, 1), ZoneOffset.ofHours(1), ZoneOffset.ofHours(0), true}, 88 {CASABLANCA, LocalDate.of(2019, 5, 6), ZoneOffset.ofHours(0), ZoneOffset.ofHours(0), false}, 89 {CASABLANCA, LocalDate.of(2037, 10, 5), ZoneOffset.ofHours(0), ZoneOffset.ofHours(0), false}, 90 {CASABLANCA, LocalDate.of(2037, 11, 16), ZoneOffset.ofHours(1), ZoneOffset.ofHours(0), true}, 91 {CASABLANCA, LocalDate.of(2038, 11, 1), ZoneOffset.ofHours(1), ZoneOffset.ofHours(0), true}, 92 }; 93 } 94 95 @DataProvider 96 private Object[][] transitionBeyondDay() { 97 return new Object[][] { 98 // ZoneId, LocalDateTime, beforeOffset, afterOffset 99 100 // Asserts that the rule: 101 // Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S 102 // translates to the next day. 103 {TOKYO, LocalDateTime.of(LocalDate.of(1948, 9, 12), ONE_AM), ZoneOffset.ofHours(10), ZoneOffset.ofHours(9)}, 104 {TOKYO, LocalDateTime.of(LocalDate.of(1949, 9, 11), ONE_AM), ZoneOffset.ofHours(10), ZoneOffset.ofHours(9)}, 105 {TOKYO, LocalDateTime.of(LocalDate.of(1950, 9, 10), ONE_AM), ZoneOffset.ofHours(10), ZoneOffset.ofHours(9)}, 106 {TOKYO, LocalDateTime.of(LocalDate.of(1951, 9, 9), ONE_AM), ZoneOffset.ofHours(10), ZoneOffset.ofHours(9)}, 107 }; 108 } 109 110 @Test(dataProvider="negativeDST") 111 public void test_NegativeDST(ZoneId zid, LocalDate ld, ZoneOffset offset, ZoneOffset stdOffset, boolean isDST) { 112 Instant i = Instant.from(ZonedDateTime.of(ld, LocalTime.MIN, zid)); 113 ZoneRules zr = zid.getRules(); 114 assertEquals(zr.getOffset(i), offset); 115 assertEquals(zr.getStandardOffset(i), stdOffset); 116 assertEquals(zr.isDaylightSavings(i), isDST); 117 } 118 119 @Test(dataProvider="transitionBeyondDay") 120 public void test_TransitionBeyondDay(ZoneId zid, LocalDateTime ldt, ZoneOffset before, ZoneOffset after) { 121 ZoneOffsetTransition zot = ZoneOffsetTransition.of(ldt, before, after); 122 ZoneRules zr = zid.getRules(); 123 assertTrue(zr.getTransitions().contains(zot)); 124 } 125 }