Java example source code file (TestHours.java)

This example Java source code file (TestHours.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

arithmeticexception, bytearrayinputstream, bytearrayoutputstream, datetime, duration, hours, illegalargumentexception, interval, localdatetime, localtime, objectoutputstream, paris, testhours, timeofday

The TestHours.java Java example source code

/*
 *  Copyright 2001-2013 Stephen Colebourne
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.joda.time;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * This class is a Junit unit test for Hours.
 *
 * @author Stephen Colebourne
 */
public class TestHours extends TestCase {
    // Test in 2002/03 as time zones are more well known
    // (before the late 90's they were all over the place)
    private static final DateTimeZone PARIS = DateTimeZone.forID("Europe/Paris");

    public static void main(String[] args) {
        junit.textui.TestRunner.run(suite());
    }

    public static TestSuite suite() {
        return new TestSuite(TestHours.class);
    }

    public TestHours(String name) {
        super(name);
    }

    protected void setUp() throws Exception {
    }

    protected void tearDown() throws Exception {
    }

    //-----------------------------------------------------------------------
    public void testConstants() {
        assertEquals(0, Hours.ZERO.getHours());
        assertEquals(1, Hours.ONE.getHours());
        assertEquals(2, Hours.TWO.getHours());
        assertEquals(3, Hours.THREE.getHours());
        assertEquals(4, Hours.FOUR.getHours());
        assertEquals(5, Hours.FIVE.getHours());
        assertEquals(6, Hours.SIX.getHours());
        assertEquals(7, Hours.SEVEN.getHours());
        assertEquals(8, Hours.EIGHT.getHours());
        assertEquals(Integer.MAX_VALUE, Hours.MAX_VALUE.getHours());
        assertEquals(Integer.MIN_VALUE, Hours.MIN_VALUE.getHours());
    }

    //-----------------------------------------------------------------------
    public void testFactory_hours_int() {
        assertSame(Hours.ZERO, Hours.hours(0));
        assertSame(Hours.ONE, Hours.hours(1));
        assertSame(Hours.TWO, Hours.hours(2));
        assertSame(Hours.THREE, Hours.hours(3));
        assertSame(Hours.FOUR, Hours.hours(4));
        assertSame(Hours.FIVE, Hours.hours(5));
        assertSame(Hours.SIX, Hours.hours(6));
        assertSame(Hours.SEVEN, Hours.hours(7));
        assertSame(Hours.EIGHT, Hours.hours(8));
        assertSame(Hours.MAX_VALUE, Hours.hours(Integer.MAX_VALUE));
        assertSame(Hours.MIN_VALUE, Hours.hours(Integer.MIN_VALUE));
        assertEquals(-1, Hours.hours(-1).getHours());
        assertEquals(9, Hours.hours(9).getHours());
    }

    //-----------------------------------------------------------------------
    public void testFactory_hoursBetween_RInstant() {
        DateTime start = new DateTime(2006, 6, 9, 12, 0, 0, 0, PARIS);
        DateTime end1 = new DateTime(2006, 6, 9, 15, 0, 0, 0, PARIS);
        DateTime end2 = new DateTime(2006, 6, 9, 18, 0, 0, 0, PARIS);
        
        assertEquals(3, Hours.hoursBetween(start, end1).getHours());
        assertEquals(0, Hours.hoursBetween(start, start).getHours());
        assertEquals(0, Hours.hoursBetween(end1, end1).getHours());
        assertEquals(-3, Hours.hoursBetween(end1, start).getHours());
        assertEquals(6, Hours.hoursBetween(start, end2).getHours());
    }

    public void testFactory_hoursBetween_RPartial() {
        LocalTime start = new LocalTime(12, 0);
        LocalTime end1 = new LocalTime(15, 0);
        @SuppressWarnings("deprecation")
        TimeOfDay end2 = new TimeOfDay(18, 0);
        
        assertEquals(3, Hours.hoursBetween(start, end1).getHours());
        assertEquals(0, Hours.hoursBetween(start, start).getHours());
        assertEquals(0, Hours.hoursBetween(end1, end1).getHours());
        assertEquals(-3, Hours.hoursBetween(end1, start).getHours());
        assertEquals(6, Hours.hoursBetween(start, end2).getHours());
    }

    public void testFactory_hoursIn_RInterval() {
        DateTime start = new DateTime(2006, 6, 9, 12, 0, 0, 0, PARIS);
        DateTime end1 = new DateTime(2006, 6, 9, 15, 0, 0, 0, PARIS);
        DateTime end2 = new DateTime(2006, 6, 9, 18, 0, 0, 0, PARIS);
        
        assertEquals(0, Hours.hoursIn((ReadableInterval) null).getHours());
        assertEquals(3, Hours.hoursIn(new Interval(start, end1)).getHours());
        assertEquals(0, Hours.hoursIn(new Interval(start, start)).getHours());
        assertEquals(0, Hours.hoursIn(new Interval(end1, end1)).getHours());
        assertEquals(6, Hours.hoursIn(new Interval(start, end2)).getHours());
    }

    public void testFactory_standardHoursIn_RPeriod() {
        assertEquals(0, Hours.standardHoursIn((ReadablePeriod) null).getHours());
        assertEquals(0, Hours.standardHoursIn(Period.ZERO).getHours());
        assertEquals(1, Hours.standardHoursIn(new Period(0, 0, 0, 0, 1, 0, 0, 0)).getHours());
        assertEquals(123, Hours.standardHoursIn(Period.hours(123)).getHours());
        assertEquals(-987, Hours.standardHoursIn(Period.hours(-987)).getHours());
        assertEquals(1, Hours.standardHoursIn(Period.minutes(119)).getHours());
        assertEquals(2, Hours.standardHoursIn(Period.minutes(120)).getHours());
        assertEquals(2, Hours.standardHoursIn(Period.minutes(121)).getHours());
        assertEquals(48, Hours.standardHoursIn(Period.days(2)).getHours());
        try {
            Hours.standardHoursIn(Period.months(1));
            fail();
        } catch (IllegalArgumentException ex) {
            // expeceted
        }
    }

    public void testFactory_parseHours_String() {
        assertEquals(0, Hours.parseHours((String) null).getHours());
        assertEquals(0, Hours.parseHours("PT0H").getHours());
        assertEquals(1, Hours.parseHours("PT1H").getHours());
        assertEquals(-3, Hours.parseHours("PT-3H").getHours());
        assertEquals(2, Hours.parseHours("P0Y0M0DT2H").getHours());
        assertEquals(2, Hours.parseHours("PT2H0M").getHours());
        try {
            Hours.parseHours("P1Y1D");
            fail();
        } catch (IllegalArgumentException ex) {
            // expeceted
        }
        try {
            Hours.parseHours("P1DT1H");
            fail();
        } catch (IllegalArgumentException ex) {
            // expeceted
        }
    }

    //-----------------------------------------------------------------------
    public void testGetMethods() {
        Hours test = Hours.hours(20);
        assertEquals(20, test.getHours());
    }

    public void testGetFieldType() {
        Hours test = Hours.hours(20);
        assertEquals(DurationFieldType.hours(), test.getFieldType());
    }

    public void testGetPeriodType() {
        Hours test = Hours.hours(20);
        assertEquals(PeriodType.hours(), test.getPeriodType());
    }

    //-----------------------------------------------------------------------
    public void testIsGreaterThan() {
        assertEquals(true, Hours.THREE.isGreaterThan(Hours.TWO));
        assertEquals(false, Hours.THREE.isGreaterThan(Hours.THREE));
        assertEquals(false, Hours.TWO.isGreaterThan(Hours.THREE));
        assertEquals(true, Hours.ONE.isGreaterThan(null));
        assertEquals(false, Hours.hours(-1).isGreaterThan(null));
    }

    public void testIsLessThan() {
        assertEquals(false, Hours.THREE.isLessThan(Hours.TWO));
        assertEquals(false, Hours.THREE.isLessThan(Hours.THREE));
        assertEquals(true, Hours.TWO.isLessThan(Hours.THREE));
        assertEquals(false, Hours.ONE.isLessThan(null));
        assertEquals(true, Hours.hours(-1).isLessThan(null));
    }

    //-----------------------------------------------------------------------
    public void testToString() {
        Hours test = Hours.hours(20);
        assertEquals("PT20H", test.toString());
        
        test = Hours.hours(-20);
        assertEquals("PT-20H", test.toString());
    }

    //-----------------------------------------------------------------------
    public void testSerialization() throws Exception {
        Hours test = Hours.SEVEN;
        
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(test);
        oos.close();
        byte[] bytes = baos.toByteArray();
        
        ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
        ObjectInputStream ois = new ObjectInputStream(bais);
        Hours result = (Hours) ois.readObject();
        ois.close();
        
        assertSame(test, result);
    }

    //-----------------------------------------------------------------------
    public void testToStandardWeeks() {
        Hours test = Hours.hours(24 * 7 * 2);
        Weeks expected = Weeks.weeks(2);
        assertEquals(expected, test.toStandardWeeks());
    }

    public void testToStandardDays() {
        Hours test = Hours.hours(24 * 2);
        Days expected = Days.days(2);
        assertEquals(expected, test.toStandardDays());
    }

    public void testToStandardMinutes() {
        Hours test = Hours.hours(3);
        Minutes expected = Minutes.minutes(3 * 60);
        assertEquals(expected, test.toStandardMinutes());
        
        try {
            Hours.MAX_VALUE.toStandardMinutes();
            fail();
        } catch (ArithmeticException ex) {
            // expected
        }
    }

    public void testToStandardSeconds() {
        Hours test = Hours.hours(3);
        Seconds expected = Seconds.seconds(3 * 60 * 60);
        assertEquals(expected, test.toStandardSeconds());
        
        try {
            Hours.MAX_VALUE.toStandardSeconds();
            fail();
        } catch (ArithmeticException ex) {
            // expected
        }
    }

    public void testToStandardDuration() {
        Hours test = Hours.hours(20);
        Duration expected = new Duration(20L * DateTimeConstants.MILLIS_PER_HOUR);
        assertEquals(expected, test.toStandardDuration());
        
        expected = new Duration(((long) Integer.MAX_VALUE) * DateTimeConstants.MILLIS_PER_HOUR);
        assertEquals(expected, Hours.MAX_VALUE.toStandardDuration());
    }

    //-----------------------------------------------------------------------
    public void testPlus_int() {
        Hours test2 = Hours.hours(2);
        Hours result = test2.plus(3);
        assertEquals(2, test2.getHours());
        assertEquals(5, result.getHours());
        
        assertEquals(1, Hours.ONE.plus(0).getHours());
        
        try {
            Hours.MAX_VALUE.plus(1);
            fail();
        } catch (ArithmeticException ex) {
            // expected
        }
    }

    public void testPlus_Hours() {
        Hours test2 = Hours.hours(2);
        Hours test3 = Hours.hours(3);
        Hours result = test2.plus(test3);
        assertEquals(2, test2.getHours());
        assertEquals(3, test3.getHours());
        assertEquals(5, result.getHours());
        
        assertEquals(1, Hours.ONE.plus(Hours.ZERO).getHours());
        assertEquals(1, Hours.ONE.plus((Hours) null).getHours());
        
        try {
            Hours.MAX_VALUE.plus(Hours.ONE);
            fail();
        } catch (ArithmeticException ex) {
            // expected
        }
    }

    public void testMinus_int() {
        Hours test2 = Hours.hours(2);
        Hours result = test2.minus(3);
        assertEquals(2, test2.getHours());
        assertEquals(-1, result.getHours());
        
        assertEquals(1, Hours.ONE.minus(0).getHours());
        
        try {
            Hours.MIN_VALUE.minus(1);
            fail();
        } catch (ArithmeticException ex) {
            // expected
        }
    }

    public void testMinus_Hours() {
        Hours test2 = Hours.hours(2);
        Hours test3 = Hours.hours(3);
        Hours result = test2.minus(test3);
        assertEquals(2, test2.getHours());
        assertEquals(3, test3.getHours());
        assertEquals(-1, result.getHours());
        
        assertEquals(1, Hours.ONE.minus(Hours.ZERO).getHours());
        assertEquals(1, Hours.ONE.minus((Hours) null).getHours());
        
        try {
            Hours.MIN_VALUE.minus(Hours.ONE);
            fail();
        } catch (ArithmeticException ex) {
            // expected
        }
    }

    public void testMultipliedBy_int() {
        Hours test = Hours.hours(2);
        assertEquals(6, test.multipliedBy(3).getHours());
        assertEquals(2, test.getHours());
        assertEquals(-6, test.multipliedBy(-3).getHours());
        assertSame(test, test.multipliedBy(1));
        
        Hours halfMax = Hours.hours(Integer.MAX_VALUE / 2 + 1);
        try {
            halfMax.multipliedBy(2);
            fail();
        } catch (ArithmeticException ex) {
            // expected
        }
    }

    public void testDividedBy_int() {
        Hours test = Hours.hours(12);
        assertEquals(6, test.dividedBy(2).getHours());
        assertEquals(12, test.getHours());
        assertEquals(4, test.dividedBy(3).getHours());
        assertEquals(3, test.dividedBy(4).getHours());
        assertEquals(2, test.dividedBy(5).getHours());
        assertEquals(2, test.dividedBy(6).getHours());
        assertSame(test, test.dividedBy(1));
        
        try {
            Hours.ONE.dividedBy(0);
            fail();
        } catch (ArithmeticException ex) {
            // expected
        }
    }

    public void testNegated() {
        Hours test = Hours.hours(12);
        assertEquals(-12, test.negated().getHours());
        assertEquals(12, test.getHours());
        
        try {
            Hours.MIN_VALUE.negated();
            fail();
        } catch (ArithmeticException ex) {
            // expected
        }
    }

    //-----------------------------------------------------------------------
    public void testAddToLocalDate() {
        Hours test = Hours.hours(26);
        LocalDateTime date = new LocalDateTime(2006, 6, 1, 0, 0, 0, 0);
        LocalDateTime expected = new LocalDateTime(2006, 6, 2, 2, 0, 0, 0);
        assertEquals(expected, date.plus(test));
    }

}