tck/java/time/TCKClock.java

/*
 * 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 java.time.Clock;
import java.time.Instant;
import java.time.ZoneId;

import org.testng.annotations.Test;

/**
 * Test Clock.
 */
@Test
public class TCKClock {

    static class MockInstantClock extends Clock {
        final long millis;
        final ZoneId zone;
        MockInstantClock(long millis, ZoneId zone) {
            this.millis = millis;
            this.zone = zone;
        }
        @Override
        public long millis() {
            return millis;
        }
        @Override
        public Instant instant() {
            return Instant.ofEpochMilli(millis());
        }
        @Override
        public ZoneId getZone() {
            return zone;
        }
        @Override
        public Clock withZone(ZoneId timeZone) {
            return new MockInstantClock(millis, timeZone);
        }
        @Override
        public boolean equals(Object obj) {
            return false;
        }
        @Override
        public int hashCode() {
            return 0;
        }
        @Override
        public String toString() {
            return "Mock";
        }
    }

    private static final Instant INSTANT = Instant.ofEpochSecond(1873687, 357000000);
    private static final ZoneId ZONE = ZoneId.of("Europe/Paris");
    private static final Clock MOCK_INSTANT = new MockInstantClock(INSTANT.toEpochMilli(), ZONE);

    //-----------------------------------------------------------------------
    @Test
    public void test_mockInstantClock_get() {
        assertEquals(MOCK_INSTANT.instant(), INSTANT);
        assertEquals(MOCK_INSTANT.millis(), INSTANT.toEpochMilli());
        assertEquals(MOCK_INSTANT.getZone(), ZONE);
    }

    @Test
    public void test_mockInstantClock_withZone() {
        ZoneId london = ZoneId.of("Europe/London");
        Clock changed = MOCK_INSTANT.withZone(london);
        assertEquals(MOCK_INSTANT.instant(), INSTANT);
        assertEquals(MOCK_INSTANT.millis(), INSTANT.toEpochMilli());
        assertEquals(changed.getZone(), london);
    }

}