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.
71 lines
2.7 KiB
Java
71 lines
2.7 KiB
Java
/*
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* Copyright (c) 2022, 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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import java.time.ZoneId;
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import java.time.ZoneOffset;
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import java.util.TimeZone;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import org.junit.jupiter.api.TestInstance;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.MethodSource;
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/**
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* @test
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* @bug 8285844
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* @summary Checks round-trips between TimeZone and ZoneId are consistent
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* @run junit ZoneIdRoundTripTest
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*/
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@TestInstance(TestInstance.Lifecycle.PER_CLASS)
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public class ZoneIdRoundTripTest {
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private Object[][] testZoneIds() {
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return new Object[][] {
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{ZoneId.of("Z"), 0},
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{ZoneId.of("UT"), 0},
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{ZoneId.of("UTC"), 0},
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{ZoneId.of("GMT"), 0},
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{ZoneId.of("+00:01"), 60_000},
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{ZoneId.of("-00:01"), -60_000},
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{ZoneId.of("+00:00:01"), 1_000},
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{ZoneId.of("-00:00:01"), -1_000},
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{ZoneId.of("UT+00:00:01"), 1_000},
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{ZoneId.of("UT-00:00:01"), -1_000},
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{ZoneId.of("UTC+00:00:01"), 1_000},
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{ZoneId.of("UTC-00:00:01"), -1_000},
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{ZoneId.of("GMT+00:00:01"), 1_000},
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{ZoneId.of("GMT-00:00:01"), -1_000},
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{ZoneOffset.of("+00:00:01"), 1_000},
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{ZoneOffset.of("-00:00:01"), -1_000},
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};
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}
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@ParameterizedTest
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@MethodSource("testZoneIds")
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public void test_ZoneIdRoundTrip(ZoneId zid, int offset) {
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var tz = TimeZone.getTimeZone(zid);
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assertEquals(offset, tz.getRawOffset());
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assertEquals(zid.normalized(), tz.toZoneId().normalized());
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}
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}
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