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Java example source code file (TCKDuration.java)

This example Java source code file (TCKDuration.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

dataprovider, duration, half_days, hours, instant, micros, millis, minutes, nanos, object, override, seconds, test, util

The TCKDuration.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) 2007-2012, 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 java.time.temporal.ChronoUnit.DAYS;
import static java.time.temporal.ChronoUnit.HALF_DAYS;
import static java.time.temporal.ChronoUnit.HOURS;
import static java.time.temporal.ChronoUnit.MICROS;
import static java.time.temporal.ChronoUnit.MILLIS;
import static java.time.temporal.ChronoUnit.MINUTES;
import static java.time.temporal.ChronoUnit.NANOS;
import static java.time.temporal.ChronoUnit.SECONDS;
import static java.time.temporal.ChronoUnit.WEEKS;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.time.DateTimeException;
import java.time.Duration;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.Period;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.format.DateTimeParseException;
import java.time.temporal.ChronoUnit;
import java.time.temporal.Temporal;
import java.time.temporal.TemporalAmount;
import java.time.temporal.TemporalUnit;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Locale;

import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

/**
 * Test Duration.
 */
@Test
public class TCKDuration extends AbstractTCKTest {

    private static final long CYCLE_SECS = 146097L * 86400L;

    //-----------------------------------------------------------------------
    // constants
    //-----------------------------------------------------------------------
    @Test
    public void test_zero() {
        assertEquals(Duration.ZERO.getSeconds(), 0L);
        assertEquals(Duration.ZERO.getNano(), 0);
    }

    //-----------------------------------------------------------------------
    // ofSeconds(long)
    //-----------------------------------------------------------------------
    @Test
    public void factory_seconds_long() {
        for (long i = -2; i <= 2; i++) {
            Duration t = Duration.ofSeconds(i);
            assertEquals(t.getSeconds(), i);
            assertEquals(t.getNano(), 0);
        }
    }

    //-----------------------------------------------------------------------
    // ofSeconds(long,long)
    //-----------------------------------------------------------------------
    @Test
    public void factory_seconds_long_long() {
        for (long i = -2; i <= 2; i++) {
            for (int j = 0; j < 10; j++) {
                Duration t = Duration.ofSeconds(i, j);
                assertEquals(t.getSeconds(), i);
                assertEquals(t.getNano(), j);
            }
            for (int j = -10; j < 0; j++) {
                Duration t = Duration.ofSeconds(i, j);
                assertEquals(t.getSeconds(), i - 1);
                assertEquals(t.getNano(), j + 1000000000);
            }
            for (int j = 999999990; j < 1000000000; j++) {
                Duration t = Duration.ofSeconds(i, j);
                assertEquals(t.getSeconds(), i);
                assertEquals(t.getNano(), j);
            }
        }
    }

    @Test
    public void factory_seconds_long_long_nanosNegativeAdjusted() {
        Duration test = Duration.ofSeconds(2L, -1);
        assertEquals(test.getSeconds(), 1);
        assertEquals(test.getNano(), 999999999);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void factory_seconds_long_long_tooBig() {
        Duration.ofSeconds(Long.MAX_VALUE, 1000000000);
    }

    //-----------------------------------------------------------------------
    // ofMillis(long)
    //-----------------------------------------------------------------------
    @DataProvider(name="MillisDurationNoNanos")
    Object[][] provider_factory_millis_long() {
        return new Object[][] {
            {0, 0, 0},
            {1, 0, 1000000},
            {2, 0, 2000000},
            {999, 0, 999000000},
            {1000, 1, 0},
            {1001, 1, 1000000},
            {-1, -1, 999000000},
            {-2, -1, 998000000},
            {-999, -1, 1000000},
            {-1000, -1, 0},
            {-1001, -2, 999000000},
        };
    }

    @Test(dataProvider="MillisDurationNoNanos")
    public void factory_millis_long(long millis, long expectedSeconds, int expectedNanoOfSecond) {
        Duration test = Duration.ofMillis(millis);
        assertEquals(test.getSeconds(), expectedSeconds);
        assertEquals(test.getNano(), expectedNanoOfSecond);
    }

    //-----------------------------------------------------------------------
    // ofNanos(long)
    //-----------------------------------------------------------------------
    @Test
    public void factory_nanos_nanos() {
        Duration test = Duration.ofNanos(1);
        assertEquals(test.getSeconds(), 0);
        assertEquals(test.getNano(), 1);
    }

    @Test
    public void factory_nanos_nanosSecs() {
        Duration test = Duration.ofNanos(1000000002);
        assertEquals(test.getSeconds(), 1);
        assertEquals(test.getNano(), 2);
    }

    @Test
    public void factory_nanos_negative() {
        Duration test = Duration.ofNanos(-2000000001);
        assertEquals(test.getSeconds(), -3);
        assertEquals(test.getNano(), 999999999);
    }

    @Test
    public void factory_nanos_max() {
        Duration test = Duration.ofNanos(Long.MAX_VALUE);
        assertEquals(test.getSeconds(), Long.MAX_VALUE / 1000000000);
        assertEquals(test.getNano(), Long.MAX_VALUE % 1000000000);
    }

    @Test
    public void factory_nanos_min() {
        Duration test = Duration.ofNanos(Long.MIN_VALUE);
        assertEquals(test.getSeconds(), Long.MIN_VALUE / 1000000000 - 1);
        assertEquals(test.getNano(), Long.MIN_VALUE % 1000000000 + 1000000000);
    }

    //-----------------------------------------------------------------------
    // ofMinutes()
    //-----------------------------------------------------------------------
    @Test
    public void factory_minutes() {
        Duration test = Duration.ofMinutes(2);
        assertEquals(test.getSeconds(), 120);
        assertEquals(test.getNano(), 0);
    }

    @Test
    public void factory_minutes_max() {
        Duration test = Duration.ofMinutes(Long.MAX_VALUE / 60);
        assertEquals(test.getSeconds(), (Long.MAX_VALUE / 60) * 60);
        assertEquals(test.getNano(), 0);
    }

    @Test
    public void factory_minutes_min() {
        Duration test = Duration.ofMinutes(Long.MIN_VALUE / 60);
        assertEquals(test.getSeconds(), (Long.MIN_VALUE / 60) * 60);
        assertEquals(test.getNano(), 0);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void factory_minutes_tooBig() {
        Duration.ofMinutes(Long.MAX_VALUE / 60 + 1);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void factory_minutes_tooSmall() {
        Duration.ofMinutes(Long.MIN_VALUE / 60 - 1);
    }

    //-----------------------------------------------------------------------
    // ofHours()
    //-----------------------------------------------------------------------
    @Test
    public void factory_hours() {
        Duration test = Duration.ofHours(2);
        assertEquals(test.getSeconds(), 2 * 3600);
        assertEquals(test.getNano(), 0);
    }

    @Test
    public void factory_hours_max() {
        Duration test = Duration.ofHours(Long.MAX_VALUE / 3600);
        assertEquals(test.getSeconds(), (Long.MAX_VALUE / 3600) * 3600);
        assertEquals(test.getNano(), 0);
    }

    @Test
    public void factory_hours_min() {
        Duration test = Duration.ofHours(Long.MIN_VALUE / 3600);
        assertEquals(test.getSeconds(), (Long.MIN_VALUE / 3600) * 3600);
        assertEquals(test.getNano(), 0);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void factory_hours_tooBig() {
        Duration.ofHours(Long.MAX_VALUE / 3600 + 1);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void factory_hours_tooSmall() {
        Duration.ofHours(Long.MIN_VALUE / 3600 - 1);
    }

    //-----------------------------------------------------------------------
    // ofDays()
    //-----------------------------------------------------------------------
    @Test
    public void factory_days() {
        Duration test = Duration.ofDays(2);
        assertEquals(test.getSeconds(), 2 * 86400);
        assertEquals(test.getNano(), 0);
    }

    @Test
    public void factory_days_max() {
        Duration test = Duration.ofDays(Long.MAX_VALUE / 86400);
        assertEquals(test.getSeconds(), (Long.MAX_VALUE / 86400) * 86400);
        assertEquals(test.getNano(), 0);
    }

    @Test
    public void factory_days_min() {
        Duration test = Duration.ofDays(Long.MIN_VALUE / 86400);
        assertEquals(test.getSeconds(), (Long.MIN_VALUE / 86400) * 86400);
        assertEquals(test.getNano(), 0);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void factory_days_tooBig() {
        Duration.ofDays(Long.MAX_VALUE / 86400 + 1);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void factory_days_tooSmall() {
        Duration.ofDays(Long.MIN_VALUE / 86400 - 1);
    }

    //-----------------------------------------------------------------------
    // of(long,TemporalUnit)
    //-----------------------------------------------------------------------
    @DataProvider(name="OfTemporalUnit")
    Object[][] provider_factory_of_longTemporalUnit() {
        return new Object[][] {
            {0, NANOS, 0, 0},
            {0, MICROS, 0, 0},
            {0, MILLIS, 0, 0},
            {0, SECONDS, 0, 0},
            {0, MINUTES, 0, 0},
            {0, HOURS, 0, 0},
            {0, HALF_DAYS, 0, 0},
            {0, DAYS, 0, 0},
            {1, NANOS, 0, 1},
            {1, MICROS, 0, 1000},
            {1, MILLIS, 0, 1000000},
            {1, SECONDS, 1, 0},
            {1, MINUTES, 60, 0},
            {1, HOURS, 3600, 0},
            {1, HALF_DAYS, 43200, 0},
            {1, DAYS, 86400, 0},
            {3, NANOS, 0, 3},
            {3, MICROS, 0, 3000},
            {3, MILLIS, 0, 3000000},
            {3, SECONDS, 3, 0},
            {3, MINUTES, 3 * 60, 0},
            {3, HOURS, 3 * 3600, 0},
            {3, HALF_DAYS, 3 * 43200, 0},
            {3, DAYS, 3 * 86400, 0},
            {-1, NANOS, -1, 999999999},
            {-1, MICROS, -1, 999999000},
            {-1, MILLIS, -1, 999000000},
            {-1, SECONDS, -1, 0},
            {-1, MINUTES, -60, 0},
            {-1, HOURS, -3600, 0},
            {-1, HALF_DAYS, -43200, 0},
            {-1, DAYS, -86400, 0},
            {-3, NANOS, -1, 999999997},
            {-3, MICROS, -1, 999997000},
            {-3, MILLIS, -1, 997000000},
            {-3, SECONDS, -3, 0},
            {-3, MINUTES, -3 * 60, 0},
            {-3, HOURS, -3 * 3600, 0},
            {-3, HALF_DAYS, -3 * 43200, 0},
            {-3, DAYS, -3 * 86400, 0},
            {Long.MAX_VALUE, NANOS, Long.MAX_VALUE / 1000000000, (int) (Long.MAX_VALUE % 1000000000)},
            {Long.MIN_VALUE, NANOS, Long.MIN_VALUE / 1000000000 - 1, (int) (Long.MIN_VALUE % 1000000000 + 1000000000)},
            {Long.MAX_VALUE, MICROS, Long.MAX_VALUE / 1000000, (int) ((Long.MAX_VALUE % 1000000) * 1000)},
            {Long.MIN_VALUE, MICROS, Long.MIN_VALUE / 1000000 - 1, (int) ((Long.MIN_VALUE % 1000000 + 1000000) * 1000)},
            {Long.MAX_VALUE, MILLIS, Long.MAX_VALUE / 1000, (int) ((Long.MAX_VALUE % 1000) * 1000000)},
            {Long.MIN_VALUE, MILLIS, Long.MIN_VALUE / 1000 - 1, (int) ((Long.MIN_VALUE % 1000 + 1000) * 1000000)},
            {Long.MAX_VALUE, SECONDS, Long.MAX_VALUE, 0},
            {Long.MIN_VALUE, SECONDS, Long.MIN_VALUE, 0},
            {Long.MAX_VALUE / 60, MINUTES, (Long.MAX_VALUE / 60) * 60, 0},
            {Long.MIN_VALUE / 60, MINUTES, (Long.MIN_VALUE / 60) * 60, 0},
            {Long.MAX_VALUE / 3600, HOURS, (Long.MAX_VALUE / 3600) * 3600, 0},
            {Long.MIN_VALUE / 3600, HOURS, (Long.MIN_VALUE / 3600) * 3600, 0},
            {Long.MAX_VALUE / 43200, HALF_DAYS, (Long.MAX_VALUE / 43200) * 43200, 0},
            {Long.MIN_VALUE / 43200, HALF_DAYS, (Long.MIN_VALUE / 43200) * 43200, 0},
        };
    }

    @Test(dataProvider="OfTemporalUnit")
    public void factory_of_longTemporalUnit(long amount, TemporalUnit unit, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.of(amount, unit);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @DataProvider(name="OfTemporalUnitOutOfRange")
    Object[][] provider_factory_of_longTemporalUnit_outOfRange() {
        return new Object[][] {
            {Long.MAX_VALUE / 60 + 1, MINUTES},
            {Long.MIN_VALUE / 60 - 1, MINUTES},
            {Long.MAX_VALUE / 3600 + 1, HOURS},
            {Long.MIN_VALUE / 3600 - 1, HOURS},
            {Long.MAX_VALUE / 43200 + 1, HALF_DAYS},
            {Long.MIN_VALUE / 43200 - 1, HALF_DAYS},
        };
    }

    @Test(dataProvider="OfTemporalUnitOutOfRange", expectedExceptions=ArithmeticException.class)
    public void factory_of_longTemporalUnit_outOfRange(long amount, TemporalUnit unit) {
        Duration.of(amount, unit);
    }

    @Test(expectedExceptions=DateTimeException.class)
    public void factory_of_longTemporalUnit_estimatedUnit() {
        Duration.of(2, WEEKS);
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void factory_of_longTemporalUnit_null() {
        Duration.of(1, (TemporalUnit) null);
    }

    //-----------------------------------------------------------------------
    // from(TemporalAmount)
    //-----------------------------------------------------------------------
    @Test
    public void factory_from_TemporalAmount_Duration() {
        TemporalAmount amount = Duration.ofHours(3);
        assertEquals(Duration.from(amount), Duration.ofHours(3));
    }

    @Test
    public void factory_from_TemporalAmount_DaysNanos() {
        TemporalAmount amount = new TemporalAmount() {
            @Override
            public long get(TemporalUnit unit) {
                if (unit == DAYS) {
                    return 23;
                } else {
                    return 45;
                }
            }
            @Override
            public List<TemporalUnit> getUnits() {
                List<TemporalUnit> list = new ArrayList<>();
                list.add(DAYS);
                list.add(NANOS);
                return list;
            }
            @Override
            public Temporal addTo(Temporal temporal) {
                throw new UnsupportedOperationException();
            }
            @Override
            public Temporal subtractFrom(Temporal temporal) {
                throw new UnsupportedOperationException();
            }
        };
        Duration t = Duration.from(amount);
        assertEquals(t.getSeconds(), 23 * 86400);
        assertEquals(t.getNano(), 45);
    }

    @Test(expectedExceptions = ArithmeticException.class)
    public void factory_from_TemporalAmount_Minutes_tooBig() {
        TemporalAmount amount = new TemporalAmount() {
            @Override
            public long get(TemporalUnit unit) {
                return (Long.MAX_VALUE / 60) + 2;
            }
            @Override
            public List<TemporalUnit> getUnits() {
                return Collections.<TemporalUnit>singletonList(MINUTES);
            }
            @Override
            public Temporal addTo(Temporal temporal) {
                throw new UnsupportedOperationException();
            }
            @Override
            public Temporal subtractFrom(Temporal temporal) {
                throw new UnsupportedOperationException();
            }
        };
        Duration.from(amount);
    }

    @Test(expectedExceptions = DateTimeException.class)
    public void factory_from_TemporalAmount_Period() {
        Duration.from(Period.ZERO);
    }

    @Test(expectedExceptions = NullPointerException.class)
    public void factory_from_TemporalAmount_null() {
        Duration.from(null);
    }

    //-----------------------------------------------------------------------
    // parse(String)
    //-----------------------------------------------------------------------
    @DataProvider(name="parseSuccess")
    Object[][] data_parseSuccess() {
        return new Object[][] {
                {"PT0S", 0, 0},
                {"PT1S", 1, 0},
                {"PT12S", 12, 0},
                {"PT123456789S", 123456789, 0},
                {"PT" + Long.MAX_VALUE + "S", Long.MAX_VALUE, 0},

                {"PT+1S", 1, 0},
                {"PT+12S", 12, 0},
                {"PT+123456789S", 123456789, 0},
                {"PT+" + Long.MAX_VALUE + "S", Long.MAX_VALUE, 0},

                {"PT-1S", -1, 0},
                {"PT-12S", -12, 0},
                {"PT-123456789S", -123456789, 0},
                {"PT" + Long.MIN_VALUE + "S", Long.MIN_VALUE, 0},

                {"PT1.1S", 1, 100000000},
                {"PT1.12S", 1, 120000000},
                {"PT1.123S", 1, 123000000},
                {"PT1.1234S", 1, 123400000},
                {"PT1.12345S", 1, 123450000},
                {"PT1.123456S", 1, 123456000},
                {"PT1.1234567S", 1, 123456700},
                {"PT1.12345678S", 1, 123456780},
                {"PT1.123456789S", 1, 123456789},

                {"PT-1.1S", -2, 1000000000 - 100000000},
                {"PT-1.12S", -2, 1000000000 - 120000000},
                {"PT-1.123S", -2, 1000000000 - 123000000},
                {"PT-1.1234S", -2, 1000000000 - 123400000},
                {"PT-1.12345S", -2, 1000000000 - 123450000},
                {"PT-1.123456S", -2, 1000000000 - 123456000},
                {"PT-1.1234567S", -2, 1000000000 - 123456700},
                {"PT-1.12345678S", -2, 1000000000 - 123456780},
                {"PT-1.123456789S", -2, 1000000000 - 123456789},

                {"PT" + Long.MAX_VALUE + ".123456789S", Long.MAX_VALUE, 123456789},
                {"PT" + Long.MIN_VALUE + ".000000000S", Long.MIN_VALUE, 0},

                {"PT01S", 1, 0},
                {"PT001S", 1, 0},
                {"PT000S", 0, 0},
                {"PT+01S", 1, 0},
                {"PT-01S", -1, 0},

                {"PT1.S", 1, 0},
                {"PT+1.S", 1, 0},
                {"PT-1.S", -1, 0},

                {"P0D", 0, 0},
                {"P0DT0H", 0, 0},
                {"P0DT0M", 0, 0},
                {"P0DT0S", 0, 0},
                {"P0DT0H0S", 0, 0},
                {"P0DT0M0S", 0, 0},
                {"P0DT0H0M0S", 0, 0},

                {"P1D", 86400, 0},
                {"P1DT0H", 86400, 0},
                {"P1DT0M", 86400, 0},
                {"P1DT0S", 86400, 0},
                {"P1DT0H0S", 86400, 0},
                {"P1DT0M0S", 86400, 0},
                {"P1DT0H0M0S", 86400, 0},

                {"P3D", 86400 * 3, 0},
                {"P3DT2H", 86400 * 3 + 3600 * 2, 0},
                {"P3DT2M", 86400 * 3 + 60 * 2, 0},
                {"P3DT2S", 86400 * 3 + 2, 0},
                {"P3DT2H1S", 86400 * 3 + 3600 * 2 + 1, 0},
                {"P3DT2M1S", 86400 * 3 + 60 * 2 + 1, 0},
                {"P3DT2H1M1S", 86400 * 3 + 3600 * 2 + 60 + 1, 0},

                {"P-3D", -86400 * 3, 0},
                {"P-3DT2H", -86400 * 3 + 3600 * 2, 0},
                {"P-3DT2M", -86400 * 3 + 60 * 2, 0},
                {"P-3DT2S", -86400 * 3 + 2, 0},
                {"P-3DT2H1S", -86400 * 3 + 3600 * 2 + 1, 0},
                {"P-3DT2M1S", -86400 * 3 + 60 * 2 + 1, 0},
                {"P-3DT2H1M1S", -86400 * 3 + 3600 * 2 + 60 + 1, 0},

                {"P-3DT-2H", -86400 * 3 - 3600 * 2, 0},
                {"P-3DT-2M", -86400 * 3 - 60 * 2, 0},
                {"P-3DT-2S", -86400 * 3 - 2, 0},
                {"P-3DT-2H1S", -86400 * 3 - 3600 * 2 + 1, 0},
                {"P-3DT-2M1S", -86400 * 3 - 60 * 2 + 1, 0},
                {"P-3DT-2H1M1S", -86400 * 3 - 3600 * 2 + 60 + 1, 0},

                {"PT0H", 0, 0},
                {"PT0H0M", 0, 0},
                {"PT0H0S", 0, 0},
                {"PT0H0M0S", 0, 0},

                {"PT1H", 3600, 0},
                {"PT3H", 3600 * 3, 0},
                {"PT-1H", -3600, 0},
                {"PT-3H", -3600 * 3, 0},

                {"PT2H5M", 3600 * 2 + 60 * 5, 0},
                {"PT2H5S", 3600 * 2 + 5, 0},
                {"PT2H5M8S", 3600 * 2 + 60 * 5 + 8, 0},
                {"PT-2H5M", -3600 * 2 + 60 * 5, 0},
                {"PT-2H5S", -3600 * 2 + 5, 0},
                {"PT-2H5M8S", -3600 * 2 + 60 * 5 + 8, 0},
                {"PT-2H-5M", -3600 * 2 - 60 * 5, 0},
                {"PT-2H-5S", -3600 * 2 - 5, 0},
                {"PT-2H-5M8S", -3600 * 2 - 60 * 5 + 8, 0},
                {"PT-2H-5M-8S", -3600 * 2 - 60 * 5 - 8, 0},

                {"PT0M", 0, 0},
                {"PT1M", 60, 0},
                {"PT3M", 60 * 3, 0},
                {"PT-1M", -60, 0},
                {"PT-3M", -60 * 3, 0},
                {"P0DT3M", 60 * 3, 0},
                {"P0DT-3M", -60 * 3, 0},
        };
    }

    @Test(dataProvider="parseSuccess")
    public void factory_parse(String text, long expectedSeconds, int expectedNanoOfSecond) {
        Duration test = Duration.parse(text);
        assertEquals(test.getSeconds(), expectedSeconds);
        assertEquals(test.getNano(), expectedNanoOfSecond);
    }

    @Test(dataProvider="parseSuccess")
    public void factory_parse_plus(String text, long expectedSeconds, int expectedNanoOfSecond) {
        Duration test = Duration.parse("+" + text);
        assertEquals(test.getSeconds(), expectedSeconds);
        assertEquals(test.getNano(), expectedNanoOfSecond);
    }

    @Test(dataProvider="parseSuccess")
    public void factory_parse_minus(String text, long expectedSeconds, int expectedNanoOfSecond) {
        Duration test;
        try {
            test = Duration.parse("-" + text);
        } catch (DateTimeParseException ex) {
            assertEquals(expectedSeconds == Long.MIN_VALUE, true);
            return;
        }
        // not inside try/catch or it breaks test
        assertEquals(test, Duration.ofSeconds(expectedSeconds, expectedNanoOfSecond).negated());
    }

    @Test(dataProvider="parseSuccess")
    public void factory_parse_comma(String text, long expectedSeconds, int expectedNanoOfSecond) {
        text = text.replace('.', ',');
        Duration test = Duration.parse(text);
        assertEquals(test.getSeconds(), expectedSeconds);
        assertEquals(test.getNano(), expectedNanoOfSecond);
    }

    @Test(dataProvider="parseSuccess")
    public void factory_parse_lowerCase(String text, long expectedSeconds, int expectedNanoOfSecond) {
        Duration test = Duration.parse(text.toLowerCase(Locale.ENGLISH));
        assertEquals(test.getSeconds(), expectedSeconds);
        assertEquals(test.getNano(), expectedNanoOfSecond);
    }

    @DataProvider(name="parseFailure")
    Object[][] data_parseFailure() {
        return new Object[][] {
                {""},
                {"ABCDEF"},
                {" PT0S"},
                {"PT0S "},

                {"PTS"},
                {"AT0S"},
                {"PA0S"},
                {"PT0A"},

                {"P0Y"},
                {"P1Y"},
                {"P-2Y"},
                {"P0M"},
                {"P1M"},
                {"P-2M"},
                {"P3Y2D"},
                {"P3M2D"},
                {"P3W"},
                {"P-3W"},
                {"P2YT30S"},
                {"P2MT30S"},

                {"P1DT"},

                {"PT+S"},
                {"PT-S"},
                {"PT.S"},
                {"PTAS"},

                {"PT-.S"},
                {"PT+.S"},

                {"PT1ABC2S"},
                {"PT1.1ABC2S"},

                {"PT123456789123456789123456789S"},
                {"PT0.1234567891S"},

                {"PT2.-3"},
                {"PT-2.-3"},
                {"PT2.+3"},
                {"PT-2.+3"},
        };
    }

    @Test(dataProvider="parseFailure", expectedExceptions=DateTimeParseException.class)
    public void factory_parseFailures(String text) {
        Duration.parse(text);
    }

    @Test(dataProvider="parseFailure", expectedExceptions=DateTimeParseException.class)
    public void factory_parseFailures_comma(String text) {
        text = text.replace('.', ',');
        Duration.parse(text);
    }

    @Test(expectedExceptions=DateTimeParseException.class)
    public void factory_parse_tooBig() {
        Duration.parse("PT" + Long.MAX_VALUE + "1S");
    }

    @Test(expectedExceptions=DateTimeParseException.class)
    public void factory_parse_tooBig_decimal() {
        Duration.parse("PT" + Long.MAX_VALUE + "1.1S");
    }

    @Test(expectedExceptions=DateTimeParseException.class)
    public void factory_parse_tooSmall() {
        Duration.parse("PT" + Long.MIN_VALUE + "1S");
    }

    @Test(expectedExceptions=DateTimeParseException.class)
    public void factory_parse_tooSmall_decimal() {
        Duration.parse("PT" + Long.MIN_VALUE + ".1S");
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void factory_parse_nullText() {
        Duration.parse(null);
    }

    //-----------------------------------------------------------------------
    // between()
    //-----------------------------------------------------------------------
    @DataProvider(name="durationBetweenInstant")
    Object[][] data_durationBetweenInstant() {
        return new Object[][] {
                {0, 0, 0, 0, 0, 0},
                {3, 0, 7, 0, 4, 0},
                {7, 0, 3, 0, -4, 0},

                {3, 20, 7, 50, 4, 30},
                {3, 80, 7, 50, 3, 999999970},
                {3, 80, 7, 79, 3, 999999999},
                {3, 80, 7, 80, 4, 0},
                {3, 80, 7, 81, 4, 1},
        };
    }

    @Test(dataProvider="durationBetweenInstant")
    public void factory_between_TemporalTemporal_Instant(long secs1, int nanos1, long secs2, int nanos2, long expectedSeconds, int expectedNanoOfSecond) {
        Instant start = Instant.ofEpochSecond(secs1, nanos1);
        Instant end = Instant.ofEpochSecond(secs2, nanos2);
        Duration t = Duration.between(start, end);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test(dataProvider="durationBetweenInstant")
    public void factory_between_TemporalTemporal_Instant_negated(long secs1, int nanos1, long secs2, int nanos2, long expectedSeconds, int expectedNanoOfSecond) {
        Instant start = Instant.ofEpochSecond(secs1, nanos1);
        Instant end = Instant.ofEpochSecond(secs2, nanos2);
        assertEquals(Duration.between(end, start), Duration.between(start, end).negated());
    }

    @DataProvider(name="durationBetweenLocalTime")
    Object[][] data_durationBetweenLocalTime() {
        return new Object[][] {
                {LocalTime.of(11, 0, 30), LocalTime.of(11, 0, 45), 15L, 0},
                {LocalTime.of(11, 0, 30), LocalTime.of(11, 0, 25), -5L, 0},
        };
    }

    @Test(dataProvider="durationBetweenLocalTime")
    public void factory_between_TemporalTemporal_LT(LocalTime start, LocalTime end, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.between(start, end);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test(dataProvider="durationBetweenLocalTime")
    public void factory_between_TemporalTemporal_LT_negated(LocalTime start, LocalTime end, long expectedSeconds, int expectedNanoOfSecond) {
        assertEquals(Duration.between(end, start), Duration.between(start, end).negated());
    }

    @DataProvider(name="durationBetweenLocalDateTime")
    Object[][] data_durationBetweenLocalDateTime() {
        return new Object[][] {
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 565_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 30, 65_000_000), -2L, 500_000_000},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 565_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), -1L, 500_000_000},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 565_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 32, 65_000_000), 0L, 500_000_000},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 565_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 33, 65_000_000), 1L, 500_000_000},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 565_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 34, 65_000_000), 2L, 500_000_000},

                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 30, 565_000_000), -1L, 500_000_000},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 31, 565_000_000), 0L, 500_000_000},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 32, 565_000_000), 1L, 500_000_000},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 33, 565_000_000), 2L, 500_000_000},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 34, 565_000_000), 3L, 500_000_000},

                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 30, 65_000_000), -1L, 0},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), 0L, 0},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 32, 65_000_000), 1L, 0},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 33, 65_000_000), 2L, 0},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2013, 3, 24, 0, 44, 34, 65_000_000), 3L, 0},

                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2813, 3, 24, 0, 44, 30, 565_000_000), 2 * CYCLE_SECS - 1L, 500_000_000},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2813, 3, 24, 0, 44, 31, 565_000_000), 2 * CYCLE_SECS + 0L, 500_000_000},
                {LocalDateTime.of(2013, 3, 24, 0, 44, 31, 65_000_000), LocalDateTime.of(2813, 3, 24, 0, 44, 32, 565_000_000), 2 * CYCLE_SECS + 1L, 500_000_000},
        };
    }

    @Test(dataProvider="durationBetweenLocalDateTime")
    public void factory_between_TemporalTemporal_LDT(LocalDateTime start, LocalDateTime end, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.between(start, end);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test(dataProvider="durationBetweenLocalDateTime")
    public void factory_between_TemporalTemporal_LDT_negated(LocalDateTime start, LocalDateTime end, long expectedSeconds, int expectedNanoOfSecond) {
        assertEquals(Duration.between(end, start), Duration.between(start, end).negated());
    }

    @Test
    public void factory_between_TemporalTemporal_mixedTypes() {
        Instant start = Instant.ofEpochSecond(1);
        ZonedDateTime end = Instant.ofEpochSecond(4).atZone(ZoneOffset.UTC);
        assertEquals(Duration.between(start, end), Duration.ofSeconds(3));
    }

    @Test(expectedExceptions=DateTimeException.class)
    public void factory_between_TemporalTemporal_invalidMixedTypes() {
        Instant start = Instant.ofEpochSecond(1);
        LocalDate end = LocalDate.of(2010, 6, 20);
        Duration.between(start, end);
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void factory_between__TemporalTemporal_startNull() {
        Instant end = Instant.ofEpochSecond(1);
        Duration.between(null, end);
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void factory_between__TemporalTemporal_endNull() {
        Instant start = Instant.ofEpochSecond(1);
        Duration.between(start, null);
    }

    //-----------------------------------------------------------------------
    // isZero(), isPositive(), isPositiveOrZero(), isNegative(), isNegativeOrZero()
    //-----------------------------------------------------------------------
    @Test
    public void test_isZero() {
        assertEquals(Duration.ofNanos(0).isZero(), true);
        assertEquals(Duration.ofSeconds(0).isZero(), true);
        assertEquals(Duration.ofNanos(1).isZero(), false);
        assertEquals(Duration.ofSeconds(1).isZero(), false);
        assertEquals(Duration.ofSeconds(1, 1).isZero(), false);
        assertEquals(Duration.ofNanos(-1).isZero(), false);
        assertEquals(Duration.ofSeconds(-1).isZero(), false);
        assertEquals(Duration.ofSeconds(-1, -1).isZero(), false);
    }

    @Test
    public void test_isNegative() {
        assertEquals(Duration.ofNanos(0).isNegative(), false);
        assertEquals(Duration.ofSeconds(0).isNegative(), false);
        assertEquals(Duration.ofNanos(1).isNegative(), false);
        assertEquals(Duration.ofSeconds(1).isNegative(), false);
        assertEquals(Duration.ofSeconds(1, 1).isNegative(), false);
        assertEquals(Duration.ofNanos(-1).isNegative(), true);
        assertEquals(Duration.ofSeconds(-1).isNegative(), true);
        assertEquals(Duration.ofSeconds(-1, -1).isNegative(), true);
    }

    //-----------------------------------------------------------------------
    // plus()
    //-----------------------------------------------------------------------
    @DataProvider(name="Plus")
    Object[][] provider_plus() {
        return new Object[][] {
            {Long.MIN_VALUE, 0, Long.MAX_VALUE, 0, -1, 0},

            {-4, 666666667, -4, 666666667, -7, 333333334},
            {-4, 666666667, -3,         0, -7, 666666667},
            {-4, 666666667, -2,         0, -6, 666666667},
            {-4, 666666667, -1,         0, -5, 666666667},
            {-4, 666666667, -1, 333333334, -4,         1},
            {-4, 666666667, -1, 666666667, -4, 333333334},
            {-4, 666666667, -1, 999999999, -4, 666666666},
            {-4, 666666667,  0,         0, -4, 666666667},
            {-4, 666666667,  0,         1, -4, 666666668},
            {-4, 666666667,  0, 333333333, -3,         0},
            {-4, 666666667,  0, 666666666, -3, 333333333},
            {-4, 666666667,  1,         0, -3, 666666667},
            {-4, 666666667,  2,         0, -2, 666666667},
            {-4, 666666667,  3,         0, -1, 666666667},
            {-4, 666666667,  3, 333333333,  0,         0},

            {-3, 0, -4, 666666667, -7, 666666667},
            {-3, 0, -3,         0, -6,         0},
            {-3, 0, -2,         0, -5,         0},
            {-3, 0, -1,         0, -4,         0},
            {-3, 0, -1, 333333334, -4, 333333334},
            {-3, 0, -1, 666666667, -4, 666666667},
            {-3, 0, -1, 999999999, -4, 999999999},
            {-3, 0,  0,         0, -3,         0},
            {-3, 0,  0,         1, -3,         1},
            {-3, 0,  0, 333333333, -3, 333333333},
            {-3, 0,  0, 666666666, -3, 666666666},
            {-3, 0,  1,         0, -2,         0},
            {-3, 0,  2,         0, -1,         0},
            {-3, 0,  3,         0,  0,         0},
            {-3, 0,  3, 333333333,  0, 333333333},

            {-2, 0, -4, 666666667, -6, 666666667},
            {-2, 0, -3,         0, -5,         0},
            {-2, 0, -2,         0, -4,         0},
            {-2, 0, -1,         0, -3,         0},
            {-2, 0, -1, 333333334, -3, 333333334},
            {-2, 0, -1, 666666667, -3, 666666667},
            {-2, 0, -1, 999999999, -3, 999999999},
            {-2, 0,  0,         0, -2,         0},
            {-2, 0,  0,         1, -2,         1},
            {-2, 0,  0, 333333333, -2, 333333333},
            {-2, 0,  0, 666666666, -2, 666666666},
            {-2, 0,  1,         0, -1,         0},
            {-2, 0,  2,         0,  0,         0},
            {-2, 0,  3,         0,  1,         0},
            {-2, 0,  3, 333333333,  1, 333333333},

            {-1, 0, -4, 666666667, -5, 666666667},
            {-1, 0, -3,         0, -4,         0},
            {-1, 0, -2,         0, -3,         0},
            {-1, 0, -1,         0, -2,         0},
            {-1, 0, -1, 333333334, -2, 333333334},
            {-1, 0, -1, 666666667, -2, 666666667},
            {-1, 0, -1, 999999999, -2, 999999999},
            {-1, 0,  0,         0, -1,         0},
            {-1, 0,  0,         1, -1,         1},
            {-1, 0,  0, 333333333, -1, 333333333},
            {-1, 0,  0, 666666666, -1, 666666666},
            {-1, 0,  1,         0,  0,         0},
            {-1, 0,  2,         0,  1,         0},
            {-1, 0,  3,         0,  2,         0},
            {-1, 0,  3, 333333333,  2, 333333333},

            {-1, 666666667, -4, 666666667, -4, 333333334},
            {-1, 666666667, -3,         0, -4, 666666667},
            {-1, 666666667, -2,         0, -3, 666666667},
            {-1, 666666667, -1,         0, -2, 666666667},
            {-1, 666666667, -1, 333333334, -1,         1},
            {-1, 666666667, -1, 666666667, -1, 333333334},
            {-1, 666666667, -1, 999999999, -1, 666666666},
            {-1, 666666667,  0,         0, -1, 666666667},
            {-1, 666666667,  0,         1, -1, 666666668},
            {-1, 666666667,  0, 333333333,  0,         0},
            {-1, 666666667,  0, 666666666,  0, 333333333},
            {-1, 666666667,  1,         0,  0, 666666667},
            {-1, 666666667,  2,         0,  1, 666666667},
            {-1, 666666667,  3,         0,  2, 666666667},
            {-1, 666666667,  3, 333333333,  3,         0},

            {0, 0, -4, 666666667, -4, 666666667},
            {0, 0, -3,         0, -3,         0},
            {0, 0, -2,         0, -2,         0},
            {0, 0, -1,         0, -1,         0},
            {0, 0, -1, 333333334, -1, 333333334},
            {0, 0, -1, 666666667, -1, 666666667},
            {0, 0, -1, 999999999, -1, 999999999},
            {0, 0,  0,         0,  0,         0},
            {0, 0,  0,         1,  0,         1},
            {0, 0,  0, 333333333,  0, 333333333},
            {0, 0,  0, 666666666,  0, 666666666},
            {0, 0,  1,         0,  1,         0},
            {0, 0,  2,         0,  2,         0},
            {0, 0,  3,         0,  3,         0},
            {0, 0,  3, 333333333,  3, 333333333},

            {0, 333333333, -4, 666666667, -3,         0},
            {0, 333333333, -3,         0, -3, 333333333},
            {0, 333333333, -2,         0, -2, 333333333},
            {0, 333333333, -1,         0, -1, 333333333},
            {0, 333333333, -1, 333333334, -1, 666666667},
            {0, 333333333, -1, 666666667,  0,         0},
            {0, 333333333, -1, 999999999,  0, 333333332},
            {0, 333333333,  0,         0,  0, 333333333},
            {0, 333333333,  0,         1,  0, 333333334},
            {0, 333333333,  0, 333333333,  0, 666666666},
            {0, 333333333,  0, 666666666,  0, 999999999},
            {0, 333333333,  1,         0,  1, 333333333},
            {0, 333333333,  2,         0,  2, 333333333},
            {0, 333333333,  3,         0,  3, 333333333},
            {0, 333333333,  3, 333333333,  3, 666666666},

            {1, 0, -4, 666666667, -3, 666666667},
            {1, 0, -3,         0, -2,         0},
            {1, 0, -2,         0, -1,         0},
            {1, 0, -1,         0,  0,         0},
            {1, 0, -1, 333333334,  0, 333333334},
            {1, 0, -1, 666666667,  0, 666666667},
            {1, 0, -1, 999999999,  0, 999999999},
            {1, 0,  0,         0,  1,         0},
            {1, 0,  0,         1,  1,         1},
            {1, 0,  0, 333333333,  1, 333333333},
            {1, 0,  0, 666666666,  1, 666666666},
            {1, 0,  1,         0,  2,         0},
            {1, 0,  2,         0,  3,         0},
            {1, 0,  3,         0,  4,         0},
            {1, 0,  3, 333333333,  4, 333333333},

            {2, 0, -4, 666666667, -2, 666666667},
            {2, 0, -3,         0, -1,         0},
            {2, 0, -2,         0,  0,         0},
            {2, 0, -1,         0,  1,         0},
            {2, 0, -1, 333333334,  1, 333333334},
            {2, 0, -1, 666666667,  1, 666666667},
            {2, 0, -1, 999999999,  1, 999999999},
            {2, 0,  0,         0,  2,         0},
            {2, 0,  0,         1,  2,         1},
            {2, 0,  0, 333333333,  2, 333333333},
            {2, 0,  0, 666666666,  2, 666666666},
            {2, 0,  1,         0,  3,         0},
            {2, 0,  2,         0,  4,         0},
            {2, 0,  3,         0,  5,         0},
            {2, 0,  3, 333333333,  5, 333333333},

            {3, 0, -4, 666666667, -1, 666666667},
            {3, 0, -3,         0,  0,         0},
            {3, 0, -2,         0,  1,         0},
            {3, 0, -1,         0,  2,         0},
            {3, 0, -1, 333333334,  2, 333333334},
            {3, 0, -1, 666666667,  2, 666666667},
            {3, 0, -1, 999999999,  2, 999999999},
            {3, 0,  0,         0,  3,         0},
            {3, 0,  0,         1,  3,         1},
            {3, 0,  0, 333333333,  3, 333333333},
            {3, 0,  0, 666666666,  3, 666666666},
            {3, 0,  1,         0,  4,         0},
            {3, 0,  2,         0,  5,         0},
            {3, 0,  3,         0,  6,         0},
            {3, 0,  3, 333333333,  6, 333333333},

            {3, 333333333, -4, 666666667,  0,         0},
            {3, 333333333, -3,         0,  0, 333333333},
            {3, 333333333, -2,         0,  1, 333333333},
            {3, 333333333, -1,         0,  2, 333333333},
            {3, 333333333, -1, 333333334,  2, 666666667},
            {3, 333333333, -1, 666666667,  3,         0},
            {3, 333333333, -1, 999999999,  3, 333333332},
            {3, 333333333,  0,         0,  3, 333333333},
            {3, 333333333,  0,         1,  3, 333333334},
            {3, 333333333,  0, 333333333,  3, 666666666},
            {3, 333333333,  0, 666666666,  3, 999999999},
            {3, 333333333,  1,         0,  4, 333333333},
            {3, 333333333,  2,         0,  5, 333333333},
            {3, 333333333,  3,         0,  6, 333333333},
            {3, 333333333,  3, 333333333,  6, 666666666},

            {Long.MAX_VALUE, 0, Long.MIN_VALUE, 0, -1, 0},
       };
    }

    @Test(dataProvider="Plus")
    public void plus(long seconds, int nanos, long otherSeconds, int otherNanos, long expectedSeconds, int expectedNanoOfSecond) {
       Duration t = Duration.ofSeconds(seconds, nanos).plus(Duration.ofSeconds(otherSeconds, otherNanos));
       assertEquals(t.getSeconds(), expectedSeconds);
       assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void plusOverflowTooBig() {
       Duration t = Duration.ofSeconds(Long.MAX_VALUE, 999999999);
       t.plus(Duration.ofSeconds(0, 1));
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void plusOverflowTooSmall() {
       Duration t = Duration.ofSeconds(Long.MIN_VALUE);
       t.plus(Duration.ofSeconds(-1, 999999999));
    }

    //-----------------------------------------------------------------------
    @Test
    public void plus_longTemporalUnit_seconds() {
        Duration t = Duration.ofSeconds(1);
        t = t.plus(1, SECONDS);
        assertEquals(2, t.getSeconds());
        assertEquals(0, t.getNano());
     }

    @Test
    public void plus_longTemporalUnit_millis() {
        Duration t = Duration.ofSeconds(1);
        t = t.plus(1, MILLIS);
        assertEquals(1, t.getSeconds());
        assertEquals(1000000, t.getNano());
     }

    @Test
    public void plus_longTemporalUnit_micros() {
        Duration t = Duration.ofSeconds(1);
        t = t.plus(1, MICROS);
        assertEquals(1, t.getSeconds());
        assertEquals(1000, t.getNano());
     }

    @Test
    public void plus_longTemporalUnit_nanos() {
        Duration t = Duration.ofSeconds(1);
        t = t.plus(1, NANOS);
        assertEquals(1, t.getSeconds());
        assertEquals(1, t.getNano());
     }

    @Test(expectedExceptions=NullPointerException.class)
    public void plus_longTemporalUnit_null() {
       Duration t = Duration.ofSeconds(1);
       t.plus(1, (TemporalUnit) null);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="PlusDays")
    Object[][] provider_plusDays_long() {
        return new Object[][] {
            {0, 0, 0},
            {0, 1, 1},
            {0, -1, -1},
            {Long.MAX_VALUE/3600/24, 0, Long.MAX_VALUE/3600/24},
            {Long.MIN_VALUE/3600/24, 0, Long.MIN_VALUE/3600/24},
            {1, 0, 1},
            {1, 1, 2},
            {1, -1, 0},
            {1, Long.MIN_VALUE/3600/24, Long.MIN_VALUE/3600/24 + 1},
            {1, 0, 1},
            {1, 1, 2},
            {1, -1, 0},
            {-1, 0, -1},
            {-1, 1, 0},
            {-1, -1, -2},
            {-1, Long.MAX_VALUE/3600/24, Long.MAX_VALUE/3600/24 - 1},
        };
    }

    @Test(dataProvider="PlusDays")
    public void plusDays_long(long days, long amount, long expectedDays) {
        Duration t = Duration.ofDays(days);
        t = t.plusDays(amount);
        assertEquals(t.toDays(), expectedDays);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusDays_long_overflowTooBig() {
        Duration t = Duration.ofDays(1);
        t.plusDays(Long.MAX_VALUE/3600/24);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusDays_long_overflowTooSmall() {
        Duration t = Duration.ofDays(-1);
        t.plusDays(Long.MIN_VALUE/3600/24);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="PlusHours")
    Object[][] provider_plusHours_long() {
        return new Object[][] {
            {0, 0, 0},
            {0, 1, 1},
            {0, -1, -1},
            {Long.MAX_VALUE/3600, 0, Long.MAX_VALUE/3600},
            {Long.MIN_VALUE/3600, 0, Long.MIN_VALUE/3600},
            {1, 0, 1},
            {1, 1, 2},
            {1, -1, 0},
            {1, Long.MIN_VALUE/3600, Long.MIN_VALUE/3600 + 1},
            {1, 0, 1},
            {1, 1, 2},
            {1, -1, 0},
            {-1, 0, -1},
            {-1, 1, 0},
            {-1, -1, -2},
            {-1, Long.MAX_VALUE/3600, Long.MAX_VALUE/3600 - 1},
        };
    }

    @Test(dataProvider="PlusHours")
    public void plusHours_long(long hours, long amount, long expectedHours) {
        Duration t = Duration.ofHours(hours);
        t = t.plusHours(amount);
        assertEquals(t.toHours(), expectedHours);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusHours_long_overflowTooBig() {
        Duration t = Duration.ofHours(1);
        t.plusHours(Long.MAX_VALUE/3600);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusHours_long_overflowTooSmall() {
        Duration t = Duration.ofHours(-1);
        t.plusHours(Long.MIN_VALUE/3600);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="PlusMinutes")
    Object[][] provider_plusMinutes_long() {
        return new Object[][] {
            {0, 0, 0},
            {0, 1, 1},
            {0, -1, -1},
            {Long.MAX_VALUE/60, 0, Long.MAX_VALUE/60},
            {Long.MIN_VALUE/60, 0, Long.MIN_VALUE/60},
            {1, 0, 1},
            {1, 1, 2},
            {1, -1, 0},
            {1, Long.MIN_VALUE/60, Long.MIN_VALUE/60 + 1},
            {1, 0, 1},
            {1, 1, 2},
            {1, -1, 0},
            {-1, 0, -1},
            {-1, 1, 0},
            {-1, -1, -2},
            {-1, Long.MAX_VALUE/60, Long.MAX_VALUE/60 - 1},
        };
    }

    @Test(dataProvider="PlusMinutes")
    public void plusMinutes_long(long minutes, long amount, long expectedMinutes) {
        Duration t = Duration.ofMinutes(minutes);
        t = t.plusMinutes(amount);
        assertEquals(t.toMinutes(), expectedMinutes);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusMinutes_long_overflowTooBig() {
        Duration t = Duration.ofMinutes(1);
        t.plusMinutes(Long.MAX_VALUE/60);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusMinutes_long_overflowTooSmall() {
        Duration t = Duration.ofMinutes(-1);
        t.plusMinutes(Long.MIN_VALUE/60);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="PlusSeconds")
    Object[][] provider_plusSeconds_long() {
        return new Object[][] {
            {0, 0, 0, 0, 0},
            {0, 0, 1, 1, 0},
            {0, 0, -1, -1, 0},
            {0, 0, Long.MAX_VALUE, Long.MAX_VALUE, 0},
            {0, 0, Long.MIN_VALUE, Long.MIN_VALUE, 0},
            {1, 0, 0, 1, 0},
            {1, 0, 1, 2, 0},
            {1, 0, -1, 0, 0},
            {1, 0, Long.MAX_VALUE - 1, Long.MAX_VALUE, 0},
            {1, 0, Long.MIN_VALUE, Long.MIN_VALUE + 1, 0},
            {1, 1, 0, 1, 1},
            {1, 1, 1, 2, 1},
            {1, 1, -1, 0, 1},
            {1, 1, Long.MAX_VALUE - 1, Long.MAX_VALUE, 1},
            {1, 1, Long.MIN_VALUE, Long.MIN_VALUE + 1, 1},
            {-1, 1, 0, -1, 1},
            {-1, 1, 1, 0, 1},
            {-1, 1, -1, -2, 1},
            {-1, 1, Long.MAX_VALUE, Long.MAX_VALUE - 1, 1},
            {-1, 1, Long.MIN_VALUE + 1, Long.MIN_VALUE, 1},
        };
    }

    @Test(dataProvider="PlusSeconds")
    public void plusSeconds_long(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        t = t.plusSeconds(amount);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusSeconds_long_overflowTooBig() {
        Duration t = Duration.ofSeconds(1, 0);
        t.plusSeconds(Long.MAX_VALUE);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusSeconds_long_overflowTooSmall() {
        Duration t = Duration.ofSeconds(-1, 0);
        t.plusSeconds(Long.MIN_VALUE);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="PlusMillis")
    Object[][] provider_plusMillis_long() {
        return new Object[][] {
            {0, 0, 0,       0, 0},
            {0, 0, 1,       0, 1000000},
            {0, 0, 999,     0, 999000000},
            {0, 0, 1000,    1, 0},
            {0, 0, 1001,    1, 1000000},
            {0, 0, 1999,    1, 999000000},
            {0, 0, 2000,    2, 0},
            {0, 0, -1,      -1, 999000000},
            {0, 0, -999,    -1, 1000000},
            {0, 0, -1000,   -1, 0},
            {0, 0, -1001,   -2, 999000000},
            {0, 0, -1999,   -2, 1000000},

            {0, 1, 0,       0, 1},
            {0, 1, 1,       0, 1000001},
            {0, 1, 998,     0, 998000001},
            {0, 1, 999,     0, 999000001},
            {0, 1, 1000,    1, 1},
            {0, 1, 1998,    1, 998000001},
            {0, 1, 1999,    1, 999000001},
            {0, 1, 2000,    2, 1},
            {0, 1, -1,      -1, 999000001},
            {0, 1, -2,      -1, 998000001},
            {0, 1, -1000,   -1, 1},
            {0, 1, -1001,   -2, 999000001},

            {0, 1000000, 0,       0, 1000000},
            {0, 1000000, 1,       0, 2000000},
            {0, 1000000, 998,     0, 999000000},
            {0, 1000000, 999,     1, 0},
            {0, 1000000, 1000,    1, 1000000},
            {0, 1000000, 1998,    1, 999000000},
            {0, 1000000, 1999,    2, 0},
            {0, 1000000, 2000,    2, 1000000},
            {0, 1000000, -1,      0, 0},
            {0, 1000000, -2,      -1, 999000000},
            {0, 1000000, -999,    -1, 2000000},
            {0, 1000000, -1000,   -1, 1000000},
            {0, 1000000, -1001,   -1, 0},
            {0, 1000000, -1002,   -2, 999000000},

            {0, 999999999, 0,     0, 999999999},
            {0, 999999999, 1,     1, 999999},
            {0, 999999999, 999,   1, 998999999},
            {0, 999999999, 1000,  1, 999999999},
            {0, 999999999, 1001,  2, 999999},
            {0, 999999999, -1,    0, 998999999},
            {0, 999999999, -1000, -1, 999999999},
            {0, 999999999, -1001, -1, 998999999},
        };
    }

    @Test(dataProvider="PlusMillis")
    public void plusMillis_long(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        t = t.plusMillis(amount);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }
    @Test(dataProvider="PlusMillis")
    public void plusMillis_long_oneMore(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds + 1, nanos);
        t = t.plusMillis(amount);
        assertEquals(t.getSeconds(), expectedSeconds + 1);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }
    @Test(dataProvider="PlusMillis")
    public void plusMillis_long_minusOneLess(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds - 1, nanos);
        t = t.plusMillis(amount);
        assertEquals(t.getSeconds(), expectedSeconds - 1);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test
    public void plusMillis_long_max() {
        Duration t = Duration.ofSeconds(Long.MAX_VALUE, 998999999);
        t = t.plusMillis(1);
        assertEquals(t.getSeconds(), Long.MAX_VALUE);
        assertEquals(t.getNano(), 999999999);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusMillis_long_overflowTooBig() {
        Duration t = Duration.ofSeconds(Long.MAX_VALUE, 999000000);
        t.plusMillis(1);
    }

    @Test
    public void plusMillis_long_min() {
        Duration t = Duration.ofSeconds(Long.MIN_VALUE, 1000000);
        t = t.plusMillis(-1);
        assertEquals(t.getSeconds(), Long.MIN_VALUE);
        assertEquals(t.getNano(), 0);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusMillis_long_overflowTooSmall() {
        Duration t = Duration.ofSeconds(Long.MIN_VALUE, 0);
        t.plusMillis(-1);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="PlusNanos")
    Object[][] provider_plusNanos_long() {
        return new Object[][] {
            {0, 0, 0,           0, 0},
            {0, 0, 1,           0, 1},
            {0, 0, 999999999,   0, 999999999},
            {0, 0, 1000000000,  1, 0},
            {0, 0, 1000000001,  1, 1},
            {0, 0, 1999999999,  1, 999999999},
            {0, 0, 2000000000,  2, 0},
            {0, 0, -1,          -1, 999999999},
            {0, 0, -999999999,  -1, 1},
            {0, 0, -1000000000, -1, 0},
            {0, 0, -1000000001, -2, 999999999},
            {0, 0, -1999999999, -2, 1},

            {1, 0, 0,           1, 0},
            {1, 0, 1,           1, 1},
            {1, 0, 999999999,   1, 999999999},
            {1, 0, 1000000000,  2, 0},
            {1, 0, 1000000001,  2, 1},
            {1, 0, 1999999999,  2, 999999999},
            {1, 0, 2000000000,  3, 0},
            {1, 0, -1,          0, 999999999},
            {1, 0, -999999999,  0, 1},
            {1, 0, -1000000000, 0, 0},
            {1, 0, -1000000001, -1, 999999999},
            {1, 0, -1999999999, -1, 1},

            {-1, 0, 0,           -1, 0},
            {-1, 0, 1,           -1, 1},
            {-1, 0, 999999999,   -1, 999999999},
            {-1, 0, 1000000000,  0, 0},
            {-1, 0, 1000000001,  0, 1},
            {-1, 0, 1999999999,  0, 999999999},
            {-1, 0, 2000000000,  1, 0},
            {-1, 0, -1,          -2, 999999999},
            {-1, 0, -999999999,  -2, 1},
            {-1, 0, -1000000000, -2, 0},
            {-1, 0, -1000000001, -3, 999999999},
            {-1, 0, -1999999999, -3, 1},

            {1, 1, 0,           1, 1},
            {1, 1, 1,           1, 2},
            {1, 1, 999999998,   1, 999999999},
            {1, 1, 999999999,   2, 0},
            {1, 1, 1000000000,  2, 1},
            {1, 1, 1999999998,  2, 999999999},
            {1, 1, 1999999999,  3, 0},
            {1, 1, 2000000000,  3, 1},
            {1, 1, -1,          1, 0},
            {1, 1, -2,          0, 999999999},
            {1, 1, -1000000000, 0, 1},
            {1, 1, -1000000001, 0, 0},
            {1, 1, -1000000002, -1, 999999999},
            {1, 1, -2000000000, -1, 1},

            {1, 999999999, 0,           1, 999999999},
            {1, 999999999, 1,           2, 0},
            {1, 999999999, 999999999,   2, 999999998},
            {1, 999999999, 1000000000,  2, 999999999},
            {1, 999999999, 1000000001,  3, 0},
            {1, 999999999, -1,          1, 999999998},
            {1, 999999999, -1000000000, 0, 999999999},
            {1, 999999999, -1000000001, 0, 999999998},
            {1, 999999999, -1999999999, 0, 0},
            {1, 999999999, -2000000000, -1, 999999999},

            {Long.MAX_VALUE, 0, 999999999, Long.MAX_VALUE, 999999999},
            {Long.MAX_VALUE - 1, 0, 1999999999, Long.MAX_VALUE, 999999999},
            {Long.MIN_VALUE, 1, -1, Long.MIN_VALUE, 0},
            {Long.MIN_VALUE + 1, 1, -1000000001, Long.MIN_VALUE, 0},
        };
    }

    @Test(dataProvider="PlusNanos")
    public void plusNanos_long(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        t = t.plusNanos(amount);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusNanos_long_overflowTooBig() {
        Duration t = Duration.ofSeconds(Long.MAX_VALUE, 999999999);
        t.plusNanos(1);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void plusNanos_long_overflowTooSmall() {
        Duration t = Duration.ofSeconds(Long.MIN_VALUE, 0);
        t.plusNanos(-1);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="Minus")
    Object[][] provider_minus() {
        return new Object[][] {
            {Long.MIN_VALUE, 0, Long.MIN_VALUE + 1, 0, -1, 0},

            {-4, 666666667, -4, 666666667,  0,         0},
            {-4, 666666667, -3,         0, -1, 666666667},
            {-4, 666666667, -2,         0, -2, 666666667},
            {-4, 666666667, -1,         0, -3, 666666667},
            {-4, 666666667, -1, 333333334, -3, 333333333},
            {-4, 666666667, -1, 666666667, -3,         0},
            {-4, 666666667, -1, 999999999, -4, 666666668},
            {-4, 666666667,  0,         0, -4, 666666667},
            {-4, 666666667,  0,         1, -4, 666666666},
            {-4, 666666667,  0, 333333333, -4, 333333334},
            {-4, 666666667,  0, 666666666, -4,         1},
            {-4, 666666667,  1,         0, -5, 666666667},
            {-4, 666666667,  2,         0, -6, 666666667},
            {-4, 666666667,  3,         0, -7, 666666667},
            {-4, 666666667,  3, 333333333, -7, 333333334},

            {-3, 0, -4, 666666667,  0, 333333333},
            {-3, 0, -3,         0,  0,         0},
            {-3, 0, -2,         0, -1,         0},
            {-3, 0, -1,         0, -2,         0},
            {-3, 0, -1, 333333334, -3, 666666666},
            {-3, 0, -1, 666666667, -3, 333333333},
            {-3, 0, -1, 999999999, -3,         1},
            {-3, 0,  0,         0, -3,         0},
            {-3, 0,  0,         1, -4, 999999999},
            {-3, 0,  0, 333333333, -4, 666666667},
            {-3, 0,  0, 666666666, -4, 333333334},
            {-3, 0,  1,         0, -4,         0},
            {-3, 0,  2,         0, -5,         0},
            {-3, 0,  3,         0, -6,         0},
            {-3, 0,  3, 333333333, -7, 666666667},

            {-2, 0, -4, 666666667,  1, 333333333},
            {-2, 0, -3,         0,  1,         0},
            {-2, 0, -2,         0,  0,         0},
            {-2, 0, -1,         0, -1,         0},
            {-2, 0, -1, 333333334, -2, 666666666},
            {-2, 0, -1, 666666667, -2, 333333333},
            {-2, 0, -1, 999999999, -2,         1},
            {-2, 0,  0,         0, -2,         0},
            {-2, 0,  0,         1, -3, 999999999},
            {-2, 0,  0, 333333333, -3, 666666667},
            {-2, 0,  0, 666666666, -3, 333333334},
            {-2, 0,  1,         0, -3,         0},
            {-2, 0,  2,         0, -4,         0},
            {-2, 0,  3,         0, -5,         0},
            {-2, 0,  3, 333333333, -6, 666666667},

            {-1, 0, -4, 666666667,  2, 333333333},
            {-1, 0, -3,         0,  2,         0},
            {-1, 0, -2,         0,  1,         0},
            {-1, 0, -1,         0,  0,         0},
            {-1, 0, -1, 333333334, -1, 666666666},
            {-1, 0, -1, 666666667, -1, 333333333},
            {-1, 0, -1, 999999999, -1,         1},
            {-1, 0,  0,         0, -1,         0},
            {-1, 0,  0,         1, -2, 999999999},
            {-1, 0,  0, 333333333, -2, 666666667},
            {-1, 0,  0, 666666666, -2, 333333334},
            {-1, 0,  1,         0, -2,         0},
            {-1, 0,  2,         0, -3,         0},
            {-1, 0,  3,         0, -4,         0},
            {-1, 0,  3, 333333333, -5, 666666667},

            {-1, 666666667, -4, 666666667,  3,         0},
            {-1, 666666667, -3,         0,  2, 666666667},
            {-1, 666666667, -2,         0,  1, 666666667},
            {-1, 666666667, -1,         0,  0, 666666667},
            {-1, 666666667, -1, 333333334,  0, 333333333},
            {-1, 666666667, -1, 666666667,  0,         0},
            {-1, 666666667, -1, 999999999, -1, 666666668},
            {-1, 666666667,  0,         0, -1, 666666667},
            {-1, 666666667,  0,         1, -1, 666666666},
            {-1, 666666667,  0, 333333333, -1, 333333334},
            {-1, 666666667,  0, 666666666, -1,         1},
            {-1, 666666667,  1,         0, -2, 666666667},
            {-1, 666666667,  2,         0, -3, 666666667},
            {-1, 666666667,  3,         0, -4, 666666667},
            {-1, 666666667,  3, 333333333, -4, 333333334},

            {0, 0, -4, 666666667,  3, 333333333},
            {0, 0, -3,         0,  3,         0},
            {0, 0, -2,         0,  2,         0},
            {0, 0, -1,         0,  1,         0},
            {0, 0, -1, 333333334,  0, 666666666},
            {0, 0, -1, 666666667,  0, 333333333},
            {0, 0, -1, 999999999,  0,         1},
            {0, 0,  0,         0,  0,         0},
            {0, 0,  0,         1, -1, 999999999},
            {0, 0,  0, 333333333, -1, 666666667},
            {0, 0,  0, 666666666, -1, 333333334},
            {0, 0,  1,         0, -1,         0},
            {0, 0,  2,         0, -2,         0},
            {0, 0,  3,         0, -3,         0},
            {0, 0,  3, 333333333, -4, 666666667},

            {0, 333333333, -4, 666666667,  3, 666666666},
            {0, 333333333, -3,         0,  3, 333333333},
            {0, 333333333, -2,         0,  2, 333333333},
            {0, 333333333, -1,         0,  1, 333333333},
            {0, 333333333, -1, 333333334,  0, 999999999},
            {0, 333333333, -1, 666666667,  0, 666666666},
            {0, 333333333, -1, 999999999,  0, 333333334},
            {0, 333333333,  0,         0,  0, 333333333},
            {0, 333333333,  0,         1,  0, 333333332},
            {0, 333333333,  0, 333333333,  0,         0},
            {0, 333333333,  0, 666666666, -1, 666666667},
            {0, 333333333,  1,         0, -1, 333333333},
            {0, 333333333,  2,         0, -2, 333333333},
            {0, 333333333,  3,         0, -3, 333333333},
            {0, 333333333,  3, 333333333, -3,         0},

            {1, 0, -4, 666666667,  4, 333333333},
            {1, 0, -3,         0,  4,         0},
            {1, 0, -2,         0,  3,         0},
            {1, 0, -1,         0,  2,         0},
            {1, 0, -1, 333333334,  1, 666666666},
            {1, 0, -1, 666666667,  1, 333333333},
            {1, 0, -1, 999999999,  1,         1},
            {1, 0,  0,         0,  1,         0},
            {1, 0,  0,         1,  0, 999999999},
            {1, 0,  0, 333333333,  0, 666666667},
            {1, 0,  0, 666666666,  0, 333333334},
            {1, 0,  1,         0,  0,         0},
            {1, 0,  2,         0, -1,         0},
            {1, 0,  3,         0, -2,         0},
            {1, 0,  3, 333333333, -3, 666666667},

            {2, 0, -4, 666666667,  5, 333333333},
            {2, 0, -3,         0,  5,         0},
            {2, 0, -2,         0,  4,         0},
            {2, 0, -1,         0,  3,         0},
            {2, 0, -1, 333333334,  2, 666666666},
            {2, 0, -1, 666666667,  2, 333333333},
            {2, 0, -1, 999999999,  2,         1},
            {2, 0,  0,         0,  2,         0},
            {2, 0,  0,         1,  1, 999999999},
            {2, 0,  0, 333333333,  1, 666666667},
            {2, 0,  0, 666666666,  1, 333333334},
            {2, 0,  1,         0,  1,         0},
            {2, 0,  2,         0,  0,         0},
            {2, 0,  3,         0, -1,         0},
            {2, 0,  3, 333333333, -2, 666666667},

            {3, 0, -4, 666666667,  6, 333333333},
            {3, 0, -3,         0,  6,         0},
            {3, 0, -2,         0,  5,         0},
            {3, 0, -1,         0,  4,         0},
            {3, 0, -1, 333333334,  3, 666666666},
            {3, 0, -1, 666666667,  3, 333333333},
            {3, 0, -1, 999999999,  3,         1},
            {3, 0,  0,         0,  3,         0},
            {3, 0,  0,         1,  2, 999999999},
            {3, 0,  0, 333333333,  2, 666666667},
            {3, 0,  0, 666666666,  2, 333333334},
            {3, 0,  1,         0,  2,         0},
            {3, 0,  2,         0,  1,         0},
            {3, 0,  3,         0,  0,         0},
            {3, 0,  3, 333333333, -1, 666666667},

            {3, 333333333, -4, 666666667,  6, 666666666},
            {3, 333333333, -3,         0,  6, 333333333},
            {3, 333333333, -2,         0,  5, 333333333},
            {3, 333333333, -1,         0,  4, 333333333},
            {3, 333333333, -1, 333333334,  3, 999999999},
            {3, 333333333, -1, 666666667,  3, 666666666},
            {3, 333333333, -1, 999999999,  3, 333333334},
            {3, 333333333,  0,         0,  3, 333333333},
            {3, 333333333,  0,         1,  3, 333333332},
            {3, 333333333,  0, 333333333,  3,         0},
            {3, 333333333,  0, 666666666,  2, 666666667},
            {3, 333333333,  1,         0,  2, 333333333},
            {3, 333333333,  2,         0,  1, 333333333},
            {3, 333333333,  3,         0,  0, 333333333},
            {3, 333333333,  3, 333333333,  0,         0},

            {Long.MAX_VALUE, 0, Long.MAX_VALUE, 0, 0, 0},
       };
    }

    @Test(dataProvider="Minus")
    public void minus(long seconds, int nanos, long otherSeconds, int otherNanos, long expectedSeconds, int expectedNanoOfSecond) {
       Duration t = Duration.ofSeconds(seconds, nanos).minus(Duration.ofSeconds(otherSeconds, otherNanos));
       assertEquals(t.getSeconds(), expectedSeconds);
       assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void minusOverflowTooSmall() {
       Duration t = Duration.ofSeconds(Long.MIN_VALUE);
       t.minus(Duration.ofSeconds(0, 1));
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void minusOverflowTooBig() {
       Duration t = Duration.ofSeconds(Long.MAX_VALUE, 999999999);
       t.minus(Duration.ofSeconds(-1, 999999999));
    }

    //-----------------------------------------------------------------------
    @Test
    public void minus_longTemporalUnit_seconds() {
        Duration t = Duration.ofSeconds(1);
        t = t.minus(1, SECONDS);
        assertEquals(0, t.getSeconds());
        assertEquals(0, t.getNano());
     }

    @Test
    public void minus_longTemporalUnit_millis() {
        Duration t = Duration.ofSeconds(1);
        t = t.minus(1, MILLIS);
        assertEquals(0, t.getSeconds());
        assertEquals(999000000, t.getNano());
     }

    @Test
    public void minus_longTemporalUnit_micros() {
        Duration t = Duration.ofSeconds(1);
        t = t.minus(1, MICROS);
        assertEquals(0, t.getSeconds());
        assertEquals(999999000, t.getNano());
     }

    @Test
    public void minus_longTemporalUnit_nanos() {
        Duration t = Duration.ofSeconds(1);
        t = t.minus(1, NANOS);
        assertEquals(0, t.getSeconds());
        assertEquals(999999999, t.getNano());
     }

    @Test(expectedExceptions=NullPointerException.class)
    public void minus_longTemporalUnit_null() {
       Duration t = Duration.ofSeconds(1);
       t.minus(1, (TemporalUnit) null);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="MinusDays")
    Object[][] provider_minusDays_long() {
        return new Object[][] {
            {0, 0, 0},
            {0, 1, -1},
            {0, -1, 1},
            {Long.MAX_VALUE/3600/24, 0, Long.MAX_VALUE/3600/24},
            {Long.MIN_VALUE/3600/24, 0, Long.MIN_VALUE/3600/24},
            {1, 0, 1},
            {1, 1, 0},
            {1, -1, 2},
            {Long.MAX_VALUE/3600/24, 1, Long.MAX_VALUE/3600/24 - 1},
            {Long.MIN_VALUE/3600/24, -1, Long.MIN_VALUE/3600/24 + 1},
            {1, 0, 1},
            {1, 1, 0},
            {1, -1, 2},
            {-1, 0, -1},
            {-1, 1, -2},
            {-1, -1, 0},
        };
    }

    @Test(dataProvider="MinusDays")
    public void minusDays_long(long days, long amount, long expectedDays) {
        Duration t = Duration.ofDays(days);
        t = t.minusDays(amount);
        assertEquals(t.toDays(), expectedDays);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusDays_long_overflowTooBig() {
        Duration t = Duration.ofDays(Long.MAX_VALUE/3600/24);
        t.minusDays(-1);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusDays_long_overflowTooSmall() {
        Duration t = Duration.ofDays(Long.MIN_VALUE/3600/24);
        t.minusDays(1);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="MinusHours")
    Object[][] provider_minusHours_long() {
        return new Object[][] {
            {0, 0, 0},
            {0, 1, -1},
            {0, -1, 1},
            {Long.MAX_VALUE/3600, 0, Long.MAX_VALUE/3600},
            {Long.MIN_VALUE/3600, 0, Long.MIN_VALUE/3600},
            {1, 0, 1},
            {1, 1, 0},
            {1, -1, 2},
            {Long.MAX_VALUE/3600, 1, Long.MAX_VALUE/3600 - 1},
            {Long.MIN_VALUE/3600, -1, Long.MIN_VALUE/3600 + 1},
            {1, 0, 1},
            {1, 1, 0},
            {1, -1, 2},
            {-1, 0, -1},
            {-1, 1, -2},
            {-1, -1, 0},
        };
    }

    @Test(dataProvider="MinusHours")
    public void minusHours_long(long hours, long amount, long expectedHours) {
        Duration t = Duration.ofHours(hours);
        t = t.minusHours(amount);
        assertEquals(t.toHours(), expectedHours);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusHours_long_overflowTooBig() {
        Duration t = Duration.ofHours(Long.MAX_VALUE/3600);
        t.minusHours(-1);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusHours_long_overflowTooSmall() {
        Duration t = Duration.ofHours(Long.MIN_VALUE/3600);
        t.minusHours(1);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="MinusMinutes")
    Object[][] provider_minusminutes_long() {
        return new Object[][] {
            {0, 0, 0},
            {0, 1, -1},
            {0, -1, 1},
            {Long.MAX_VALUE/60, 0, Long.MAX_VALUE/60},
            {Long.MIN_VALUE/60, 0, Long.MIN_VALUE/60},
            {1, 0, 1},
            {1, 1, 0},
            {1, -1, 2},
            {Long.MAX_VALUE/60, 1, Long.MAX_VALUE/60 - 1},
            {Long.MIN_VALUE/60, -1, Long.MIN_VALUE/60 + 1},
            {1, 0, 1},
            {1, 1, 0},
            {1, -1, 2},
            {-1, 0, -1},
            {-1, 1, -2},
            {-1, -1, 0},
        };
    }

    @Test(dataProvider="MinusMinutes")
    public void minusMinutes_long(long minutes, long amount, long expectedMinutes) {
        Duration t = Duration.ofMinutes(minutes);
        t = t.minusMinutes(amount);
        assertEquals(t.toMinutes(), expectedMinutes);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusMinutes_long_overflowTooBig() {
        Duration t = Duration.ofMinutes(Long.MAX_VALUE/60);
        t.minusMinutes(-1);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusMinutes_long_overflowTooSmall() {
        Duration t = Duration.ofMinutes(Long.MIN_VALUE/60);
        t.minusMinutes(1);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="MinusSeconds")
    Object[][] provider_minusSeconds_long() {
        return new Object[][] {
            {0, 0, 0, 0, 0},
            {0, 0, 1, -1, 0},
            {0, 0, -1, 1, 0},
            {0, 0, Long.MAX_VALUE, -Long.MAX_VALUE, 0},
            {0, 0, Long.MIN_VALUE + 1, Long.MAX_VALUE, 0},
            {1, 0, 0, 1, 0},
            {1, 0, 1, 0, 0},
            {1, 0, -1, 2, 0},
            {1, 0, Long.MAX_VALUE - 1, -Long.MAX_VALUE + 2, 0},
            {1, 0, Long.MIN_VALUE + 2, Long.MAX_VALUE, 0},
            {1, 1, 0, 1, 1},
            {1, 1, 1, 0, 1},
            {1, 1, -1, 2, 1},
            {1, 1, Long.MAX_VALUE, -Long.MAX_VALUE + 1, 1},
            {1, 1, Long.MIN_VALUE + 2, Long.MAX_VALUE, 1},
            {-1, 1, 0, -1, 1},
            {-1, 1, 1, -2, 1},
            {-1, 1, -1, 0, 1},
            {-1, 1, Long.MAX_VALUE, Long.MIN_VALUE, 1},
            {-1, 1, Long.MIN_VALUE + 1, Long.MAX_VALUE - 1, 1},
        };
    }

    @Test(dataProvider="MinusSeconds")
    public void minusSeconds_long(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        t = t.minusSeconds(amount);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusSeconds_long_overflowTooBig() {
        Duration t = Duration.ofSeconds(1, 0);
        t.minusSeconds(Long.MIN_VALUE + 1);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusSeconds_long_overflowTooSmall() {
        Duration t = Duration.ofSeconds(-2, 0);
        t.minusSeconds(Long.MAX_VALUE);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="MinusMillis")
    Object[][] provider_minusMillis_long() {
        return new Object[][] {
            {0, 0, 0,       0, 0},
            {0, 0, 1,      -1, 999000000},
            {0, 0, 999,    -1, 1000000},
            {0, 0, 1000,   -1, 0},
            {0, 0, 1001,   -2, 999000000},
            {0, 0, 1999,   -2, 1000000},
            {0, 0, 2000,   -2, 0},
            {0, 0, -1,      0, 1000000},
            {0, 0, -999,    0, 999000000},
            {0, 0, -1000,   1, 0},
            {0, 0, -1001,   1, 1000000},
            {0, 0, -1999,   1, 999000000},

            {0, 1, 0,       0, 1},
            {0, 1, 1,      -1, 999000001},
            {0, 1, 998,    -1, 2000001},
            {0, 1, 999,    -1, 1000001},
            {0, 1, 1000,   -1, 1},
            {0, 1, 1998,   -2, 2000001},
            {0, 1, 1999,   -2, 1000001},
            {0, 1, 2000,   -2, 1},
            {0, 1, -1,      0, 1000001},
            {0, 1, -2,      0, 2000001},
            {0, 1, -1000,   1, 1},
            {0, 1, -1001,   1, 1000001},

            {0, 1000000, 0,       0, 1000000},
            {0, 1000000, 1,       0, 0},
            {0, 1000000, 998,    -1, 3000000},
            {0, 1000000, 999,    -1, 2000000},
            {0, 1000000, 1000,   -1, 1000000},
            {0, 1000000, 1998,   -2, 3000000},
            {0, 1000000, 1999,   -2, 2000000},
            {0, 1000000, 2000,   -2, 1000000},
            {0, 1000000, -1,      0, 2000000},
            {0, 1000000, -2,      0, 3000000},
            {0, 1000000, -999,    1, 0},
            {0, 1000000, -1000,   1, 1000000},
            {0, 1000000, -1001,   1, 2000000},
            {0, 1000000, -1002,   1, 3000000},

            {0, 999999999, 0,     0, 999999999},
            {0, 999999999, 1,     0, 998999999},
            {0, 999999999, 999,   0, 999999},
            {0, 999999999, 1000, -1, 999999999},
            {0, 999999999, 1001, -1, 998999999},
            {0, 999999999, -1,    1, 999999},
            {0, 999999999, -1000, 1, 999999999},
            {0, 999999999, -1001, 2, 999999},
        };
    }

    @Test(dataProvider="MinusMillis")
    public void minusMillis_long(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        t = t.minusMillis(amount);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }
    @Test(dataProvider="MinusMillis")
    public void minusMillis_long_oneMore(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds + 1, nanos);
        t = t.minusMillis(amount);
        assertEquals(t.getSeconds(), expectedSeconds + 1);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }
    @Test(dataProvider="MinusMillis")
    public void minusMillis_long_minusOneLess(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds - 1, nanos);
        t = t.minusMillis(amount);
        assertEquals(t.getSeconds(), expectedSeconds - 1);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test
    public void minusMillis_long_max() {
        Duration t = Duration.ofSeconds(Long.MAX_VALUE, 998999999);
        t = t.minusMillis(-1);
        assertEquals(t.getSeconds(), Long.MAX_VALUE);
        assertEquals(t.getNano(), 999999999);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusMillis_long_overflowTooBig() {
        Duration t = Duration.ofSeconds(Long.MAX_VALUE, 999000000);
        t.minusMillis(-1);
    }

    @Test
    public void minusMillis_long_min() {
        Duration t = Duration.ofSeconds(Long.MIN_VALUE, 1000000);
        t = t.minusMillis(1);
        assertEquals(t.getSeconds(), Long.MIN_VALUE);
        assertEquals(t.getNano(), 0);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusMillis_long_overflowTooSmall() {
        Duration t = Duration.ofSeconds(Long.MIN_VALUE, 0);
        t.minusMillis(1);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="MinusNanos")
    Object[][] provider_minusNanos_long() {
        return new Object[][] {
            {0, 0, 0,           0, 0},
            {0, 0, 1,          -1, 999999999},
            {0, 0, 999999999,  -1, 1},
            {0, 0, 1000000000, -1, 0},
            {0, 0, 1000000001, -2, 999999999},
            {0, 0, 1999999999, -2, 1},
            {0, 0, 2000000000, -2, 0},
            {0, 0, -1,          0, 1},
            {0, 0, -999999999,  0, 999999999},
            {0, 0, -1000000000, 1, 0},
            {0, 0, -1000000001, 1, 1},
            {0, 0, -1999999999, 1, 999999999},

            {1, 0, 0,            1, 0},
            {1, 0, 1,            0, 999999999},
            {1, 0, 999999999,    0, 1},
            {1, 0, 1000000000,   0, 0},
            {1, 0, 1000000001,  -1, 999999999},
            {1, 0, 1999999999,  -1, 1},
            {1, 0, 2000000000,  -1, 0},
            {1, 0, -1,           1, 1},
            {1, 0, -999999999,   1, 999999999},
            {1, 0, -1000000000,  2, 0},
            {1, 0, -1000000001,  2, 1},
            {1, 0, -1999999999,  2, 999999999},

            {-1, 0, 0,           -1, 0},
            {-1, 0, 1,           -2, 999999999},
            {-1, 0, 999999999,   -2, 1},
            {-1, 0, 1000000000,  -2, 0},
            {-1, 0, 1000000001,  -3, 999999999},
            {-1, 0, 1999999999,  -3, 1},
            {-1, 0, 2000000000,  -3, 0},
            {-1, 0, -1,          -1, 1},
            {-1, 0, -999999999,  -1, 999999999},
            {-1, 0, -1000000000,  0, 0},
            {-1, 0, -1000000001,  0, 1},
            {-1, 0, -1999999999,  0, 999999999},

            {1, 1, 0,           1, 1},
            {1, 1, 1,           1, 0},
            {1, 1, 999999998,   0, 3},
            {1, 1, 999999999,   0, 2},
            {1, 1, 1000000000,  0, 1},
            {1, 1, 1999999998, -1, 3},
            {1, 1, 1999999999, -1, 2},
            {1, 1, 2000000000, -1, 1},
            {1, 1, -1,          1, 2},
            {1, 1, -2,          1, 3},
            {1, 1, -1000000000, 2, 1},
            {1, 1, -1000000001, 2, 2},
            {1, 1, -1000000002, 2, 3},
            {1, 1, -2000000000, 3, 1},

            {1, 999999999, 0,           1, 999999999},
            {1, 999999999, 1,           1, 999999998},
            {1, 999999999, 999999999,   1, 0},
            {1, 999999999, 1000000000,  0, 999999999},
            {1, 999999999, 1000000001,  0, 999999998},
            {1, 999999999, -1,          2, 0},
            {1, 999999999, -1000000000, 2, 999999999},
            {1, 999999999, -1000000001, 3, 0},
            {1, 999999999, -1999999999, 3, 999999998},
            {1, 999999999, -2000000000, 3, 999999999},

            {Long.MAX_VALUE, 0, -999999999, Long.MAX_VALUE, 999999999},
            {Long.MAX_VALUE - 1, 0, -1999999999, Long.MAX_VALUE, 999999999},
            {Long.MIN_VALUE, 1, 1, Long.MIN_VALUE, 0},
            {Long.MIN_VALUE + 1, 1, 1000000001, Long.MIN_VALUE, 0},
        };
    }

    @Test(dataProvider="MinusNanos")
    public void minusNanos_long(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        t = t.minusNanos(amount);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusNanos_long_overflowTooBig() {
        Duration t = Duration.ofSeconds(Long.MAX_VALUE, 999999999);
        t.minusNanos(-1);
    }

    @Test(expectedExceptions = {ArithmeticException.class})
    public void minusNanos_long_overflowTooSmall() {
        Duration t = Duration.ofSeconds(Long.MIN_VALUE, 0);
        t.minusNanos(1);
    }

    //-----------------------------------------------------------------------
    // multipliedBy()
    //-----------------------------------------------------------------------
    @DataProvider(name="MultipliedBy")
    Object[][] provider_multipliedBy() {
       return new Object[][] {
          {-4, 666666667, -3,   9, 999999999},
          {-4, 666666667, -2,   6, 666666666},
          {-4, 666666667, -1,   3, 333333333},
          {-4, 666666667,  0,   0,         0},
          {-4, 666666667,  1,  -4, 666666667},
          {-4, 666666667,  2,  -7, 333333334},
          {-4, 666666667,  3, -10, 000000001},

          {-3, 0, -3,  9, 0},
          {-3, 0, -2,  6, 0},
          {-3, 0, -1,  3, 0},
          {-3, 0,  0,  0, 0},
          {-3, 0,  1, -3, 0},
          {-3, 0,  2, -6, 0},
          {-3, 0,  3, -9, 0},

          {-2, 0, -3,  6, 0},
          {-2, 0, -2,  4, 0},
          {-2, 0, -1,  2, 0},
          {-2, 0,  0,  0, 0},
          {-2, 0,  1, -2, 0},
          {-2, 0,  2, -4, 0},
          {-2, 0,  3, -6, 0},

          {-1, 0, -3,  3, 0},
          {-1, 0, -2,  2, 0},
          {-1, 0, -1,  1, 0},
          {-1, 0,  0,  0, 0},
          {-1, 0,  1, -1, 0},
          {-1, 0,  2, -2, 0},
          {-1, 0,  3, -3, 0},

          {-1, 500000000, -3,  1, 500000000},
          {-1, 500000000, -2,  1,         0},
          {-1, 500000000, -1,  0, 500000000},
          {-1, 500000000,  0,  0,         0},
          {-1, 500000000,  1, -1, 500000000},
          {-1, 500000000,  2, -1,         0},
          {-1, 500000000,  3, -2, 500000000},

          {0, 0, -3, 0, 0},
          {0, 0, -2, 0, 0},
          {0, 0, -1, 0, 0},
          {0, 0,  0, 0, 0},
          {0, 0,  1, 0, 0},
          {0, 0,  2, 0, 0},
          {0, 0,  3, 0, 0},

          {0, 500000000, -3, -2, 500000000},
          {0, 500000000, -2, -1,         0},
          {0, 500000000, -1, -1, 500000000},
          {0, 500000000,  0,  0,         0},
          {0, 500000000,  1,  0, 500000000},
          {0, 500000000,  2,  1,         0},
          {0, 500000000,  3,  1, 500000000},

          {1, 0, -3, -3, 0},
          {1, 0, -2, -2, 0},
          {1, 0, -1, -1, 0},
          {1, 0,  0,  0, 0},
          {1, 0,  1,  1, 0},
          {1, 0,  2,  2, 0},
          {1, 0,  3,  3, 0},

          {2, 0, -3, -6, 0},
          {2, 0, -2, -4, 0},
          {2, 0, -1, -2, 0},
          {2, 0,  0,  0, 0},
          {2, 0,  1,  2, 0},
          {2, 0,  2,  4, 0},
          {2, 0,  3,  6, 0},

          {3, 0, -3, -9, 0},
          {3, 0, -2, -6, 0},
          {3, 0, -1, -3, 0},
          {3, 0,  0,  0, 0},
          {3, 0,  1,  3, 0},
          {3, 0,  2,  6, 0},
          {3, 0,  3,  9, 0},

          {3, 333333333, -3, -10, 000000001},
          {3, 333333333, -2,  -7, 333333334},
          {3, 333333333, -1,  -4, 666666667},
          {3, 333333333,  0,   0,         0},
          {3, 333333333,  1,   3, 333333333},
          {3, 333333333,  2,   6, 666666666},
          {3, 333333333,  3,   9, 999999999},
       };
    }

    @Test(dataProvider="MultipliedBy")
    public void multipliedBy(long seconds, int nanos, int multiplicand, long expectedSeconds, int expectedNanos) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        t = t.multipliedBy(multiplicand);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanos);
    }

    @Test
    public void multipliedBy_max() {
        Duration test = Duration.ofSeconds(1);
        assertEquals(test.multipliedBy(Long.MAX_VALUE), Duration.ofSeconds(Long.MAX_VALUE));
    }

    @Test
    public void multipliedBy_min() {
        Duration test = Duration.ofSeconds(1);
        assertEquals(test.multipliedBy(Long.MIN_VALUE), Duration.ofSeconds(Long.MIN_VALUE));
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void multipliedBy_tooBig() {
        Duration test = Duration.ofSeconds(1, 1);
        test.multipliedBy(Long.MAX_VALUE);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void multipliedBy_tooBig_negative() {
        Duration test = Duration.ofSeconds(1, 1);
        test.multipliedBy(Long.MIN_VALUE);
    }

    //-----------------------------------------------------------------------
    // dividedBy()
    //-----------------------------------------------------------------------
    @DataProvider(name="DividedBy")
    Object[][] provider_dividedBy() {
       return new Object[][] {
          {-4, 666666667, -3,  1, 111111111},
          {-4, 666666667, -2,  1, 666666666},
          {-4, 666666667, -1,  3, 333333333},
          {-4, 666666667,  1, -4, 666666667},
          {-4, 666666667,  2, -2, 333333334},
          {-4, 666666667,  3, -2, 888888889},

          {-3, 0, -3,  1, 0},
          {-3, 0, -2,  1, 500000000},
          {-3, 0, -1,  3, 0},
          {-3, 0,  1, -3, 0},
          {-3, 0,  2, -2, 500000000},
          {-3, 0,  3, -1, 0},

          {-2, 0, -3,  0, 666666666},
          {-2, 0, -2,  1,         0},
          {-2, 0, -1,  2,         0},
          {-2, 0,  1, -2,         0},
          {-2, 0,  2, -1,         0},
          {-2, 0,  3, -1, 333333334},

          {-1, 0, -3,  0, 333333333},
          {-1, 0, -2,  0, 500000000},
          {-1, 0, -1,  1,         0},
          {-1, 0,  1, -1,         0},
          {-1, 0,  2, -1, 500000000},
          {-1, 0,  3, -1, 666666667},

          {-1, 500000000, -3,  0, 166666666},
          {-1, 500000000, -2,  0, 250000000},
          {-1, 500000000, -1,  0, 500000000},
          {-1, 500000000,  1, -1, 500000000},
          {-1, 500000000,  2, -1, 750000000},
          {-1, 500000000,  3, -1, 833333334},

          {0, 0, -3, 0, 0},
          {0, 0, -2, 0, 0},
          {0, 0, -1, 0, 0},
          {0, 0,  1, 0, 0},
          {0, 0,  2, 0, 0},
          {0, 0,  3, 0, 0},

          {0, 500000000, -3, -1, 833333334},
          {0, 500000000, -2, -1, 750000000},
          {0, 500000000, -1, -1, 500000000},
          {0, 500000000,  1,  0, 500000000},
          {0, 500000000,  2,  0, 250000000},
          {0, 500000000,  3,  0, 166666666},

          {1, 0, -3, -1, 666666667},
          {1, 0, -2, -1, 500000000},
          {1, 0, -1, -1,         0},
          {1, 0,  1,  1,         0},
          {1, 0,  2,  0, 500000000},
          {1, 0,  3,  0, 333333333},

          {2, 0, -3, -1, 333333334},
          {2, 0, -2, -1,         0},
          {2, 0, -1, -2,         0},
          {2, 0,  1,  2,         0},
          {2, 0,  2,  1,         0},
          {2, 0,  3,  0, 666666666},

          {3, 0, -3, -1,         0},
          {3, 0, -2, -2, 500000000},
          {3, 0, -1, -3,         0},
          {3, 0,  1,  3,         0},
          {3, 0,  2,  1, 500000000},
          {3, 0,  3,  1,         0},

          {3, 333333333, -3, -2, 888888889},
          {3, 333333333, -2, -2, 333333334},
          {3, 333333333, -1, -4, 666666667},
          {3, 333333333,  1,  3, 333333333},
          {3, 333333333,  2,  1, 666666666},
          {3, 333333333,  3,  1, 111111111},
       };
    }

    @Test(dataProvider="DividedBy")
    public void dividedBy(long seconds, int nanos, int divisor, long expectedSeconds, int expectedNanos) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        t = t.dividedBy(divisor);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanos);
    }

    @Test(dataProvider="DividedBy", expectedExceptions=ArithmeticException.class)
    public void dividedByZero(long seconds, int nanos, int divisor, long expectedSeconds, int expectedNanos) {
       Duration t = Duration.ofSeconds(seconds, nanos);
       t.dividedBy(0);
       fail(t + " divided by zero did not throw ArithmeticException");
    }

    @Test
    public void dividedBy_max() {
        Duration test = Duration.ofSeconds(Long.MAX_VALUE);
        assertEquals(test.dividedBy(Long.MAX_VALUE), Duration.ofSeconds(1));
    }

    //-----------------------------------------------------------------------
    // negated()
    //-----------------------------------------------------------------------
    @Test
    public void test_negated() {
        assertEquals(Duration.ofSeconds(0).negated(), Duration.ofSeconds(0));
        assertEquals(Duration.ofSeconds(12).negated(), Duration.ofSeconds(-12));
        assertEquals(Duration.ofSeconds(-12).negated(), Duration.ofSeconds(12));
        assertEquals(Duration.ofSeconds(12, 20).negated(), Duration.ofSeconds(-12, -20));
        assertEquals(Duration.ofSeconds(12, -20).negated(), Duration.ofSeconds(-12, 20));
        assertEquals(Duration.ofSeconds(-12, -20).negated(), Duration.ofSeconds(12, 20));
        assertEquals(Duration.ofSeconds(-12, 20).negated(), Duration.ofSeconds(12, -20));
        assertEquals(Duration.ofSeconds(Long.MAX_VALUE).negated(), Duration.ofSeconds(-Long.MAX_VALUE));
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void test_negated_overflow() {
        Duration.ofSeconds(Long.MIN_VALUE).negated();
    }

    //-----------------------------------------------------------------------
    // abs()
    //-----------------------------------------------------------------------
    @Test
    public void test_abs() {
        assertEquals(Duration.ofSeconds(0).abs(), Duration.ofSeconds(0));
        assertEquals(Duration.ofSeconds(12).abs(), Duration.ofSeconds(12));
        assertEquals(Duration.ofSeconds(-12).abs(), Duration.ofSeconds(12));
        assertEquals(Duration.ofSeconds(12, 20).abs(), Duration.ofSeconds(12, 20));
        assertEquals(Duration.ofSeconds(12, -20).abs(), Duration.ofSeconds(12, -20));
        assertEquals(Duration.ofSeconds(-12, -20).abs(), Duration.ofSeconds(12, 20));
        assertEquals(Duration.ofSeconds(-12, 20).abs(), Duration.ofSeconds(12, -20));
        assertEquals(Duration.ofSeconds(Long.MAX_VALUE).abs(), Duration.ofSeconds(Long.MAX_VALUE));
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void test_abs_overflow() {
        Duration.ofSeconds(Long.MIN_VALUE).abs();
    }

    //-----------------------------------------------------------------------
    // toNanos()
    //-----------------------------------------------------------------------
    @Test
    public void test_toNanos() {
        Duration test = Duration.ofSeconds(321, 123456789);
        assertEquals(test.toNanos(), 321123456789L);
    }

    @Test
    public void test_toNanos_max() {
        Duration test = Duration.ofSeconds(0, Long.MAX_VALUE);
        assertEquals(test.toNanos(), Long.MAX_VALUE);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void test_toNanos_tooBig() {
        Duration test = Duration.ofSeconds(0, Long.MAX_VALUE).plusNanos(1);
        test.toNanos();
    }

    //-----------------------------------------------------------------------
    // toMillis()
    //-----------------------------------------------------------------------
    @Test
    public void test_toMillis() {
        Duration test = Duration.ofSeconds(321, 123456789);
        assertEquals(test.toMillis(), 321000 + 123);
    }

    @Test
    public void test_toMillis_max() {
        Duration test = Duration.ofSeconds(Long.MAX_VALUE / 1000, (Long.MAX_VALUE % 1000) * 1000000);
        assertEquals(test.toMillis(), Long.MAX_VALUE);
    }

    @Test(expectedExceptions=ArithmeticException.class)
    public void test_toMillis_tooBig() {
        Duration test = Duration.ofSeconds(Long.MAX_VALUE / 1000, ((Long.MAX_VALUE % 1000) + 1) * 1000000);
        test.toMillis();
    }

    //-----------------------------------------------------------------------
    // compareTo()
    //-----------------------------------------------------------------------
    @Test
    public void test_comparisons() {
        doTest_comparisons_Duration(
            Duration.ofSeconds(-2L, 0),
            Duration.ofSeconds(-2L, 999999998),
            Duration.ofSeconds(-2L, 999999999),
            Duration.ofSeconds(-1L, 0),
            Duration.ofSeconds(-1L, 1),
            Duration.ofSeconds(-1L, 999999998),
            Duration.ofSeconds(-1L, 999999999),
            Duration.ofSeconds(0L, 0),
            Duration.ofSeconds(0L, 1),
            Duration.ofSeconds(0L, 2),
            Duration.ofSeconds(0L, 999999999),
            Duration.ofSeconds(1L, 0),
            Duration.ofSeconds(2L, 0)
        );
    }

    void doTest_comparisons_Duration(Duration... durations) {
        for (int i = 0; i < durations.length; i++) {
            Duration a = durations[i];
            for (int j = 0; j < durations.length; j++) {
                Duration b = durations[j];
                if (i < j) {
                    assertEquals(a.compareTo(b)< 0, true, a + " <=> " + b);
                    assertEquals(a.equals(b), false, a + " <=> " + b);
                } else if (i > j) {
                    assertEquals(a.compareTo(b) > 0, true, a + " <=> " + b);
                    assertEquals(a.equals(b), false, a + " <=> " + b);
                } else {
                    assertEquals(a.compareTo(b), 0, a + " <=> " + b);
                    assertEquals(a.equals(b), true, a + " <=> " + b);
                }
            }
        }
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void test_compareTo_ObjectNull() {
        Duration a = Duration.ofSeconds(0L, 0);
        a.compareTo(null);
    }

    @Test(expectedExceptions=ClassCastException.class)
    @SuppressWarnings({ "unchecked", "rawtypes" })
    public void compareToNonDuration() {
       Comparable c = Duration.ofSeconds(0L);
       c.compareTo(new Object());
    }

    //-----------------------------------------------------------------------
    // equals()
    //-----------------------------------------------------------------------
    @Test
    public void test_equals() {
        Duration test5a = Duration.ofSeconds(5L, 20);
        Duration test5b = Duration.ofSeconds(5L, 20);
        Duration test5n = Duration.ofSeconds(5L, 30);
        Duration test6 = Duration.ofSeconds(6L, 20);

        assertEquals(test5a.equals(test5a), true);
        assertEquals(test5a.equals(test5b), true);
        assertEquals(test5a.equals(test5n), false);
        assertEquals(test5a.equals(test6), false);

        assertEquals(test5b.equals(test5a), true);
        assertEquals(test5b.equals(test5b), true);
        assertEquals(test5b.equals(test5n), false);
        assertEquals(test5b.equals(test6), false);

        assertEquals(test5n.equals(test5a), false);
        assertEquals(test5n.equals(test5b), false);
        assertEquals(test5n.equals(test5n), true);
        assertEquals(test5n.equals(test6), false);

        assertEquals(test6.equals(test5a), false);
        assertEquals(test6.equals(test5b), false);
        assertEquals(test6.equals(test5n), false);
        assertEquals(test6.equals(test6), true);
    }

    @Test
    public void test_equals_null() {
        Duration test5 = Duration.ofSeconds(5L, 20);
        assertEquals(test5.equals(null), false);
    }

    @Test
    public void test_equals_otherClass() {
        Duration test5 = Duration.ofSeconds(5L, 20);
        assertEquals(test5.equals(""), false);
    }

    //-----------------------------------------------------------------------
    // hashCode()
    //-----------------------------------------------------------------------
    @Test
    public void test_hashCode() {
        Duration test5a = Duration.ofSeconds(5L, 20);
        Duration test5b = Duration.ofSeconds(5L, 20);
        Duration test5n = Duration.ofSeconds(5L, 30);
        Duration test6 = Duration.ofSeconds(6L, 20);

        assertEquals(test5a.hashCode() == test5a.hashCode(), true);
        assertEquals(test5a.hashCode() == test5b.hashCode(), true);
        assertEquals(test5b.hashCode() == test5b.hashCode(), true);

        assertEquals(test5a.hashCode() == test5n.hashCode(), false);
        assertEquals(test5a.hashCode() == test6.hashCode(), false);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="withNanos")
    Object[][] provider_withNanos_int() {
        return new Object[][] {
            {0, 0, 0,           0, 0},
            {0, 0, 1,           0, 1},
            {0, 0, 999999999,   0, 999999999},

            {1, 0, 0,           1, 0},
            {1, 0, 1,           1, 1},
            {1, 0, 999999999,   1, 999999999},

            {-1, 0, 0,           -1, 0},
            {-1, 0, 1,           -1, 1},
            {-1, 0, 999999999,   -1, 999999999},

            {1, 999999999, 0,           1, 0},
            {1, 999999999, 1,           1, 1},
            {1, 999999998, 2,           1, 2},

            {Long.MAX_VALUE, 0, 999999999, Long.MAX_VALUE, 999999999},
            {Long.MIN_VALUE, 0, 999999999, Long.MIN_VALUE, 999999999},
        };
    }

    @Test(dataProvider="withNanos")
    public void withNanos_long(long seconds, int nanos, int amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        t = t.withNanos(amount);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="withSeconds")
    Object[][] provider_withSeconds_long() {
        return new Object[][] {
            {0, 0, 0, 0, 0},
            {0, 0, 1, 1, 0},
            {0, 0, -1, -1, 0},
            {0, 0, Long.MAX_VALUE, Long.MAX_VALUE, 0},
            {0, 0, Long.MIN_VALUE, Long.MIN_VALUE, 0},

            {1, 0, 0, 0, 0},
            {1, 0, 2, 2, 0},
            {1, 0, -1, -1, 0},
            {1, 0, Long.MAX_VALUE, Long.MAX_VALUE, 0},
            {1, 0, Long.MIN_VALUE, Long.MIN_VALUE, 0},

            {-1, 1, 0, 0, 1},
            {-1, 1, 1, 1, 1},
            {-1, 1, -1, -1, 1},
            {-1, 1, Long.MAX_VALUE, Long.MAX_VALUE, 1},
            {-1, 1, Long.MIN_VALUE, Long.MIN_VALUE, 1},
        };
    }

    @Test(dataProvider="withSeconds")
    public void withSeconds_long(long seconds, int nanos, long amount, long expectedSeconds, int expectedNanoOfSecond) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        t = t.withSeconds(amount);
        assertEquals(t.getSeconds(), expectedSeconds);
        assertEquals(t.getNano(), expectedNanoOfSecond);
    }

    //-----------------------------------------------------------------------
    // toString()
    //-----------------------------------------------------------------------
    @DataProvider(name="toString")
    Object[][] provider_toString() {
        return new Object[][] {
            {0, 0, "PT0S"},
            {0, 1, "PT0.000000001S"},
            {0, 10, "PT0.00000001S"},
            {0, 100, "PT0.0000001S"},
            {0, 1000, "PT0.000001S"},
            {0, 10000, "PT0.00001S"},
            {0, 100000, "PT0.0001S"},
            {0, 1000000, "PT0.001S"},
            {0, 10000000, "PT0.01S"},
            {0, 100000000, "PT0.1S"},
            {0, 120000000, "PT0.12S"},
            {0, 123000000, "PT0.123S"},
            {0, 123400000, "PT0.1234S"},
            {0, 123450000, "PT0.12345S"},
            {0, 123456000, "PT0.123456S"},
            {0, 123456700, "PT0.1234567S"},
            {0, 123456780, "PT0.12345678S"},
            {0, 123456789, "PT0.123456789S"},
            {1, 0, "PT1S"},
            {59, 0, "PT59S"},
            {60, 0, "PT1M"},
            {61, 0, "PT1M1S"},
            {3599, 0, "PT59M59S"},
            {3600, 0, "PT1H"},
            {3601, 0, "PT1H1S"},
            {3661, 0, "PT1H1M1S"},
            {86399, 0, "PT23H59M59S"},
            {86400, 0, "PT24H"},
            {59, 0, "PT59S"},
            {59, 0, "PT59S"},
            {-1, 0, "PT-1S"},
            {-1, 1000, "PT-0.999999S"},
            {-1, 900000000, "PT-0.1S"},
            {Long.MAX_VALUE, 0, "PT" + (Long.MAX_VALUE / 3600) + "H" +
                    ((Long.MAX_VALUE % 3600) / 60) + "M" + (Long.MAX_VALUE % 60) + "S"},
            {Long.MIN_VALUE, 0, "PT" + (Long.MIN_VALUE / 3600) + "H" +
                    ((Long.MIN_VALUE % 3600) / 60) + "M" + (Long.MIN_VALUE % 60) + "S"},
        };
    }

    @Test(dataProvider="toString")
    public void test_toString(long seconds, int nanos, String expected) {
        Duration t = Duration.ofSeconds(seconds, nanos);
        assertEquals(t.toString(), expected);
    }

    //-----------------------------------------------------------------------
    @Test(groups="{tck}")
    public void test_duration_getUnits() {
        Duration duration = Duration.ofSeconds(5000, 1000);
        List<TemporalUnit> units = duration.getUnits();
        assertEquals(units.size(), 2, "Period.getUnits length");
        assertTrue(units.contains(ChronoUnit.SECONDS), "Period.getUnits contains ChronoUnit.SECONDS");
        assertTrue(units.contains(ChronoUnit.NANOS), "contains ChronoUnit.NANOS");
    }

    @Test()
    public void test_getUnit() {
        Duration test = Duration.ofSeconds(2000, 1000);
        long seconds = test.get(ChronoUnit.SECONDS);
        assertEquals(seconds, 2000, "duration.get(SECONDS)");
        long nanos = test.get(ChronoUnit.NANOS);
        assertEquals(nanos, 1000, "duration.get(NANOS)");
    }

    @DataProvider(name="BadTemporalUnit")
    Object[][] provider_factory_of_badTemporalUnit() {
        return new Object[][] {
            {0, MICROS},
            {0, MILLIS},
            {0, MINUTES},
            {0, HOURS},
            {0, HALF_DAYS},
            {0, DAYS},
            {0, ChronoUnit.MONTHS},
            {0, ChronoUnit.YEARS},
            {0, ChronoUnit.DECADES},
            {0, ChronoUnit.CENTURIES},
            {0, ChronoUnit.MILLENNIA},
        };
    }

    @Test(dataProvider="BadTemporalUnit", expectedExceptions=DateTimeException.class)
    public void test_bad_getUnit(long amount, TemporalUnit unit) {
        Duration t = Duration.of(amount, unit);
        t.get(unit);
    }
}

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