1 /* 2 * Copyright (c) 2021, 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 8073446 8262110 27 * @summary Tests DST related beyond the year 2037 28 * @run testng Beyond2037 29 */ 30 31 import java.text.SimpleDateFormat; 32 import java.util.TimeZone; 33 34 import org.testng.annotations.DataProvider; 35 import org.testng.annotations.Test; 36 import static org.testng.Assert.assertEquals; 37 38 @Test 39 public class Beyond2037 { 40 41 @DataProvider 42 Object[][] dstTransition() { 43 return new Object[][] { 44 {"2037/03/08 01:59:59:999", "2037/03/08 01:59:59:999"}, 45 {"2037/03/08 02:00:00:000", "2037/03/08 03:00:00:000"}, 46 {"2038/03/14 01:59:59:999", "2038/03/14 01:59:59:999"}, 47 {"2038/03/14 02:00:00:000", "2038/03/14 03:00:00:000"}, 48 {"2099/03/08 01:59:59:999", "2099/03/08 01:59:59:999"}, 49 {"2099/03/08 02:00:00:000", "2099/03/08 03:00:00:000"}, 50 {"2100/03/14 01:59:59:999", "2100/03/14 01:59:59:999"}, 51 {"2100/03/14 02:00:00:000", "2100/03/14 03:00:00:000"}, 52 {"8000/03/12 01:59:59:999", "8000/03/12 01:59:59:999"}, 53 {"8000/03/12 02:00:00:000", "8000/03/12 03:00:00:000"}, 54 }; 55 } 56 57 @Test(dataProvider="dstTransition") 58 public void testDstTransition(String source, String expected) throws Exception { 59 var timeZone = TimeZone.getTimeZone("America/New_York"); 60 var sdf = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss:SSS" ); 61 sdf.setTimeZone(timeZone); 62 assertEquals(sdf.format(sdf.parse(source)), expected); 63 } 64 65 @Test 66 public void testGetOffset() throws Exception { 67 var timeZone = TimeZone.getTimeZone("PST8PDT"); 68 var df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 69 df.setTimeZone(timeZone); 70 var tMilli = df.parse("7681-03-09 03:20:49").getTime(); 71 assertEquals(timeZone.getOffset(tMilli), -25200000); 72 } 73 }