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Java example source code file (TCKClock_Tick.java)

This example Java source code file (TCKClock_Tick.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

abstracttcktest, clock, europe\/moscow, europe\/paris, exception, instant, moscow, paris, tckclock_tick, test, zdt, zoneddatetime, zoneid

The TCKClock_Tick.java Java example source code

/*
 * Copyright (c) 2012, 2013, 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.
 */

/*
 * This file is available under and governed by the GNU General Public
 * License version 2 only, as published by the Free Software Foundation.
 * However, the following notice accompanied the original version of this
 * file:
 *
 * Copyright (c) 2008-2012 Stephen Colebourne & Michael Nascimento Santos
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 *  * Neither the name of JSR-310 nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package tck.java.time;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertSame;

import java.time.Clock;
import java.time.Duration;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;

import org.testng.annotations.Test;

/**
 * Test tick clock.
 */
@Test
public class TCKClock_Tick extends AbstractTCKTest {

    private static final ZoneId MOSCOW = ZoneId.of("Europe/Moscow");
    private static final ZoneId PARIS = ZoneId.of("Europe/Paris");
    private static final ZonedDateTime ZDT = LocalDateTime.of(2008, 6, 30, 11, 30, 10, 500).atZone(ZoneOffset.ofHours(2));

    //-----------------------------------------------------------------------
    public void test_tick_ClockDuration_250millis() {
        for (int i = 0; i < 1000; i++) {
            Clock test = Clock.tick(Clock.fixed(ZDT.withNano(i * 1000_000).toInstant(), PARIS), Duration.ofMillis(250));
            assertEquals(test.instant(), ZDT.withNano((i / 250) * 250_000_000).toInstant());
            assertEquals(test.getZone(), PARIS);
        }
    }

    public void test_tick_ClockDuration_250micros() {
        for (int i = 0; i < 1000; i++) {
            Clock test = Clock.tick(Clock.fixed(ZDT.withNano(i * 1000).toInstant(), PARIS), Duration.ofNanos(250_000));
            assertEquals(test.instant(), ZDT.withNano((i / 250) * 250_000).toInstant());
            assertEquals(test.getZone(), PARIS);
        }
    }

    public void test_tick_ClockDuration_20nanos() {
        for (int i = 0; i < 1000; i++) {
            Clock test = Clock.tick(Clock.fixed(ZDT.withNano(i).toInstant(), PARIS), Duration.ofNanos(20));
            assertEquals(test.instant(), ZDT.withNano((i / 20) * 20).toInstant());
            assertEquals(test.getZone(), PARIS);
        }
    }

    public void test_tick_ClockDuration_zeroDuration() {
        Clock underlying = Clock.system(PARIS);
        Clock test = Clock.tick(underlying, Duration.ZERO);
        assertSame(test, underlying);  // spec says same
    }

    public void test_tick_ClockDuration_1nsDuration() {
        Clock underlying = Clock.system(PARIS);
        Clock test = Clock.tick(underlying, Duration.ofNanos(1));
        assertSame(test, underlying);  // spec says same
    }

    @Test(expectedExceptions = ArithmeticException.class)
    public void test_tick_ClockDuration_maxDuration() {
        Clock.tick(Clock.systemUTC(), Duration.ofSeconds(Long.MAX_VALUE));
    }

    @Test(expectedExceptions = IllegalArgumentException.class)
    public void test_tick_ClockDuration_subMilliNotDivisible_123ns() {
        Clock.tick(Clock.systemUTC(), Duration.ofSeconds(0, 123));
    }

    @Test(expectedExceptions = IllegalArgumentException.class)
    public void test_tick_ClockDuration_subMilliNotDivisible_999ns() {
        Clock.tick(Clock.systemUTC(), Duration.ofSeconds(0, 999));
    }

    @Test(expectedExceptions = IllegalArgumentException.class)
    public void test_tick_ClockDuration_subMilliNotDivisible_999_999_999ns() {
        Clock.tick(Clock.systemUTC(), Duration.ofSeconds(0, 999_999_999));
    }

    @Test(expectedExceptions = IllegalArgumentException.class)
    public void test_tick_ClockDuration_negative1ns() {
        Clock.tick(Clock.systemUTC(), Duration.ofSeconds(0, -1));
    }

    @Test(expectedExceptions = IllegalArgumentException.class)
    public void test_tick_ClockDuration_negative1s() {
        Clock.tick(Clock.systemUTC(), Duration.ofSeconds(-1));
    }

    @Test(expectedExceptions = NullPointerException.class)
    public void test_tick_ClockDuration_nullClock() {
        Clock.tick(null, Duration.ZERO);
    }

    @Test(expectedExceptions = NullPointerException.class)
    public void test_tick_ClockDuration_nullDuration() {
        Clock.tick(Clock.systemUTC(), null);
    }

    //-----------------------------------------------------------------------
    public void test_tickSeconds_ZoneId() throws Exception {
        Clock test = Clock.tickSeconds(PARIS);
        assertEquals(test.getZone(), PARIS);
        assertEquals(test.instant().getNano(), 0);
        Thread.sleep(100);
        assertEquals(test.instant().getNano(), 0);
    }

    @Test(expectedExceptions = NullPointerException.class)
    public void test_tickSeconds_ZoneId_nullZoneId() {
        Clock.tickSeconds(null);
    }

    //-----------------------------------------------------------------------
    public void test_tickMinutes_ZoneId() {
        Clock test = Clock.tickMinutes(PARIS);
        assertEquals(test.getZone(), PARIS);
        Instant instant = test.instant();
        assertEquals(instant.getEpochSecond() % 60, 0);
        assertEquals(instant.getNano(), 0);
    }

    @Test(expectedExceptions = NullPointerException.class)
    public void test_tickMinutes_ZoneId_nullZoneId() {
        Clock.tickMinutes(null);
    }

    //-------------------------------------------------------------------------
    public void test_withZone() {
        Clock test = Clock.tick(Clock.system(PARIS), Duration.ofMillis(500));
        Clock changed = test.withZone(MOSCOW);
        assertEquals(test.getZone(), PARIS);
        assertEquals(changed.getZone(), MOSCOW);
    }

    public void test_withZone_equal() {
        Clock test = Clock.tick(Clock.system(PARIS), Duration.ofMillis(500));
        Clock changed = test.withZone(PARIS);
        assertEquals(test, changed);
    }

    @Test(expectedExceptions = NullPointerException.class)
    public void test_withZone_null() {
        Clock.tick(Clock.system(PARIS), Duration.ofMillis(500)).withZone(null);
    }

    //-----------------------------------------------------------------------
    public void test__equals() {
        Clock a = Clock.tick(Clock.system(PARIS), Duration.ofMillis(500));
        Clock b = Clock.tick(Clock.system(PARIS), Duration.ofMillis(500));
        assertEquals(a.equals(a), true);
        assertEquals(a.equals(b), true);
        assertEquals(b.equals(a), true);
        assertEquals(b.equals(b), true);

        Clock c = Clock.tick(Clock.system(MOSCOW), Duration.ofMillis(500));
        assertEquals(a.equals(c), false);

        Clock d = Clock.tick(Clock.system(PARIS), Duration.ofMillis(499));
        assertEquals(a.equals(d), false);

        assertEquals(a.equals(null), false);
        assertEquals(a.equals("other type"), false);
        assertEquals(a.equals(Clock.systemUTC()), false);
    }

    public void test_hashCode() {
        Clock a = Clock.tick(Clock.system(PARIS), Duration.ofMillis(500));
        Clock b = Clock.tick(Clock.system(PARIS), Duration.ofMillis(500));
        assertEquals(a.hashCode(), a.hashCode());
        assertEquals(a.hashCode(), b.hashCode());

        Clock c = Clock.tick(Clock.system(MOSCOW), Duration.ofMillis(500));
        assertEquals(a.hashCode() == c.hashCode(), false);

        Clock d = Clock.tick(Clock.system(PARIS), Duration.ofMillis(499));
        assertEquals(a.hashCode() == d.hashCode(), false);
    }
}

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