russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
83 lines
3.3 KiB
Java
83 lines
3.3 KiB
Java
/*
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* Copyright (c) 2025, 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 8369184
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* @summary Checks if equals()/hashCode() of SimpleTimeZone works correctly
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* @run junit SimpleTimeZoneEqualsHashCodeTest
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*/
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import java.util.SimpleTimeZone;
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import static java.util.Calendar.MARCH;
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import static java.util.Calendar.NOVEMBER;
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import static java.util.Calendar.SUNDAY;
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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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import static org.junit.jupiter.api.Assertions.assertNotEquals;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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public class SimpleTimeZoneEqualsHashCodeTest {
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private static final SimpleTimeZone STZ_WITH_DST =
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new SimpleTimeZone(-288_000_000, "America/Los_Angeles",
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MARCH, 8, -SUNDAY, 7_200_000,
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NOVEMBER, 1, -SUNDAY, 7_200_000);
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private static final SimpleTimeZone STZ_WITHOUT_DST =
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new SimpleTimeZone(0, "foo");
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@Test
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void withDSTTest() {
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var stz = (SimpleTimeZone)STZ_WITH_DST.clone();
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assertEquals(STZ_WITH_DST, stz);
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assertEquals(STZ_WITH_DST.hashCode(), stz.hashCode());
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stz.setEndRule(NOVEMBER, 8, -SUNDAY, 7_200_000);
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assertNotEquals(STZ_WITH_DST, stz);
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// From the contract point, hash codes may be the same.
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// This tests the implementation which considers DST
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// related fields for calculating the hash code.
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assertNotEquals(STZ_WITH_DST.hashCode(), stz.hashCode());
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}
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@Test
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void withoutDSTTest() {
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var stz = (SimpleTimeZone)STZ_WITHOUT_DST.clone();
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// Only setting start rule. Still considered non-DST zone
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stz.setStartRule(MARCH, 8, -SUNDAY, 7_200_000);
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assertTrue(!stz.useDaylightTime());
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assertEquals(STZ_WITHOUT_DST, stz);
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assertEquals(STZ_WITHOUT_DST.hashCode(), stz.hashCode());
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// Setting end rule as well. Now it is considered DST zone
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stz.setEndRule(NOVEMBER, 8, -SUNDAY, 7_200_000);
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assertTrue(stz.useDaylightTime());
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assertNotEquals(STZ_WITHOUT_DST, stz);
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// From the contract point, hash codes may be the same.
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// This tests the implementation which considers DST
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// related fields for calculating the hash code.
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assertNotEquals(STZ_WITHOUT_DST.hashCode(), stz.hashCode());
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}
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}
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