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jfreechart example source code file (MillisecondTests.java)

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

Java - jfreechart tags/keywords

date, day, gregoriancalendar, hour, hour, io, locale, locale, millisecond, millisecond, minute, nullpointerexception, second, timezone, timezone, util

The jfreechart MillisecondTests.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2009, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library 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 Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * ---------------------
 * MillisecondTests.java
 * ---------------------
 * (C) Copyright 2002-2009, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 29-Jan-2002 : Version 1 (DG);
 * 17-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 * 21-Oct-2003 : Added hashCode tests (DG);
 * 29-Apr-2004 : Added test for getMiddleMillisecond() method (DG);
 * 11-Jan-2005 : Added test for non-clonability (DG);
 * 05-Oct-2006 : Added some tests (DG);
 * 11-Jul-2007 : Fixed bad time zone assumption (DG);
 *
 */

package org.jfree.data.time.junit;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.TimeZone;

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

import org.jfree.data.time.Day;
import org.jfree.data.time.Hour;
import org.jfree.data.time.Millisecond;
import org.jfree.data.time.Minute;
import org.jfree.data.time.Second;
import org.jfree.date.MonthConstants;

/**
 * Tests for the {@link Millisecond} class.
 */
public class MillisecondTests extends TestCase {

    /**
     * Returns the tests as a test suite.
     *
     * @return The test suite.
     */
    public static Test suite() {
        return new TestSuite(MillisecondTests.class);
    }

    /**
     * Constructs a new set of tests.
     *
     * @param name  the name of the tests.
     */
    public MillisecondTests(String name) {
        super(name);
    }

    /**
     * Common test setup.
     */
    protected void setUp() {
        // no setup
    }

    /**
     * Check that a {@link Millisecond} instance is equal to itself.
     *
     * SourceForge Bug ID: 558850.
     */
    public void testEqualsSelf() {
        Millisecond millisecond = new Millisecond();
        assertTrue(millisecond.equals(millisecond));
    }

    /**
     * Tests the equals method.
     */
    public void testEquals() {
        Day day1 = new Day(29, MonthConstants.MARCH, 2002);
        Hour hour1 = new Hour(15, day1);
        Minute minute1 = new Minute(15, hour1);
        Second second1 = new Second(34, minute1);
        Millisecond milli1 = new Millisecond(999, second1);
        Day day2 = new Day(29, MonthConstants.MARCH, 2002);
        Hour hour2 = new Hour(15, day2);
        Minute minute2 = new Minute(15, hour2);
        Second second2 = new Second(34, minute2);
        Millisecond milli2 = new Millisecond(999, second2);
        assertTrue(milli1.equals(milli2));
    }

    /**
     * In GMT, the 4.55:59.123pm on 21 Mar 2002 is
     * java.util.Date(1016729759123L).  Use this to check the Millisecond
     * constructor.
     */
    public void testDateConstructor1() {
        TimeZone zone = TimeZone.getTimeZone("GMT");
        Locale locale = Locale.getDefault();  // locale should not matter here
        Millisecond m1 = new Millisecond(new Date(1016729759122L), zone,
                locale);
        Millisecond m2 = new Millisecond(new Date(1016729759123L), zone,
                locale);

        assertEquals(122, m1.getMillisecond());
        assertEquals(1016729759122L, m1.getLastMillisecond(zone));

        assertEquals(123, m2.getMillisecond());
        assertEquals(1016729759123L, m2.getFirstMillisecond(zone));
    }

    /**
     * In Tallinn, the 4.55:59.123pm on 21 Mar 2002 is
     * java.util.Date(1016722559123L).  Use this to check the Millisecond
     * constructor.
     */
    public void testDateConstructor2() {
        TimeZone zone = TimeZone.getTimeZone("Europe/Tallinn");
        Locale locale = Locale.getDefault();  // locale should not matter here
        Millisecond m1 = new Millisecond(new Date(1016722559122L), zone,
                locale);
        Millisecond m2 = new Millisecond(new Date(1016722559123L), zone,
                locale);

        assertEquals(122, m1.getMillisecond());
        assertEquals(1016722559122L, m1.getLastMillisecond(zone));

        assertEquals(123, m2.getMillisecond());
        assertEquals(1016722559123L, m2.getFirstMillisecond(zone));
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        Millisecond m1 = new Millisecond();
        Millisecond m2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(m1);
            out.close();

            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                    buffer.toByteArray()));
            m2 = (Millisecond) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(m1, m2);
    }

    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashcode() {
        Millisecond m1 = new Millisecond(599, 23, 45, 7, 9, 10, 2007);
        Millisecond m2 = new Millisecond(599, 23, 45, 7, 9, 10, 2007);
        assertTrue(m1.equals(m2));
        int hash1 = m1.hashCode();
        int hash2 = m2.hashCode();
        assertEquals(hash1, hash2);
    }

    /**
     * A test for bug report 943985 - the calculation for the middle
     * millisecond is incorrect for odd milliseconds.
     */
    public void test943985() {
        Millisecond ms = new Millisecond(new java.util.Date(4));
        assertEquals(ms.getFirstMillisecond(), ms.getMiddleMillisecond());
        assertEquals(ms.getMiddleMillisecond(), ms.getLastMillisecond());
        ms = new Millisecond(new java.util.Date(5));
        assertEquals(ms.getFirstMillisecond(), ms.getMiddleMillisecond());
        assertEquals(ms.getMiddleMillisecond(), ms.getLastMillisecond());
    }

    /**
     * The {@link Millisecond} class is immutable, so should not be
     * {@link Cloneable}.
     */
    public void testNotCloneable() {
        Millisecond m = new Millisecond(599, 23, 45, 7, 9, 10, 2007);
        assertFalse(m instanceof Cloneable);
    }

    /**
     * Some checks for the getFirstMillisecond() method.
     */
    public void testGetFirstMillisecond() {
        Locale saved = Locale.getDefault();
        Locale.setDefault(Locale.UK);
        TimeZone savedZone = TimeZone.getDefault();
        TimeZone.setDefault(TimeZone.getTimeZone("Europe/London"));
        Millisecond m = new Millisecond(500, 15, 43, 15, 1, 4, 2006);
        assertEquals(1143902595500L, m.getFirstMillisecond());
        Locale.setDefault(saved);
        TimeZone.setDefault(savedZone);
    }

    /**
     * Some checks for the getFirstMillisecond(TimeZone) method.
     */
    public void testGetFirstMillisecondWithTimeZone() {
        Millisecond m = new Millisecond(500, 50, 59, 15, 1, 4, 1950);
        TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles");
        assertEquals(-623289609500L, m.getFirstMillisecond(zone));

        // try null calendar
        boolean pass = false;
        try {
            m.getFirstMillisecond((TimeZone) null);
        }
        catch (NullPointerException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some checks for the getFirstMillisecond(TimeZone) method.
     */
    public void testGetFirstMillisecondWithCalendar() {
        Millisecond m = new Millisecond(500, 55, 40, 2, 15, 4, 2000);
        GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY);
        calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt"));
        assertEquals(955766455500L, m.getFirstMillisecond(calendar));

        // try null calendar
        boolean pass = false;
        try {
            m.getFirstMillisecond((Calendar) null);
        }
        catch (NullPointerException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some checks for the getLastMillisecond() method.
     */
    public void testGetLastMillisecond() {
        Locale saved = Locale.getDefault();
        Locale.setDefault(Locale.UK);
        TimeZone savedZone = TimeZone.getDefault();
        TimeZone.setDefault(TimeZone.getTimeZone("Europe/London"));
        Millisecond m = new Millisecond(750, 1, 1, 1, 1, 1, 1970);
        assertEquals(61750L, m.getLastMillisecond());
        Locale.setDefault(saved);
        TimeZone.setDefault(savedZone);
    }

    /**
     * Some checks for the getLastMillisecond(TimeZone) method.
     */
    public void testGetLastMillisecondWithTimeZone() {
        Millisecond m = new Millisecond(750, 55, 1, 2, 7, 7, 1950);
        TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles");
        assertEquals(-614962684250L, m.getLastMillisecond(zone));

        // try null calendar
        boolean pass = false;
        try {
            m.getLastMillisecond((TimeZone) null);
        }
        catch (NullPointerException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some checks for the getLastMillisecond(TimeZone) method.
     */
    public void testGetLastMillisecondWithCalendar() {
        Millisecond m = new Millisecond(250, 50, 45, 21, 21, 4, 2001);
        GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY);
        calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt"));
        assertEquals(987889550250L, m.getLastMillisecond(calendar));

        // try null calendar
        boolean pass = false;
        try {
            m.getLastMillisecond((Calendar) null);
        }
        catch (NullPointerException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some checks for the getSerialIndex() method.
     */
    public void testGetSerialIndex() {
        Millisecond m = new Millisecond(500, 1, 1, 1, 1, 1, 2000);
        assertEquals(3155850061500L, m.getSerialIndex());
        m = new Millisecond(500, 1, 1, 1, 1, 1, 1900);
        // TODO: this must be wrong...
        assertEquals(176461500L, m.getSerialIndex());
    }

    /**
     * Some checks for the testNext() method.
     */
    public void testNext() {
        Millisecond m = new Millisecond(555, 55, 30, 1, 12, 12, 2000);
        m = (Millisecond) m.next();
        assertEquals(2000, m.getSecond().getMinute().getHour().getYear());
        assertEquals(12, m.getSecond().getMinute().getHour().getMonth());
        assertEquals(12, m.getSecond().getMinute().getHour().getDayOfMonth());
        assertEquals(1, m.getSecond().getMinute().getHour().getHour());
        assertEquals(30, m.getSecond().getMinute().getMinute());
        assertEquals(55, m.getSecond().getSecond());
        assertEquals(556, m.getMillisecond());
        m = new Millisecond(999, 59, 59, 23, 31, 12, 9999);
        assertNull(m.next());
    }

    /**
     * Some checks for the getStart() method.
     */
    public void testGetStart() {
        Locale saved = Locale.getDefault();
        Locale.setDefault(Locale.ITALY);
        Calendar cal = Calendar.getInstance(Locale.ITALY);
        cal.set(2006, Calendar.JANUARY, 16, 3, 47, 55);
        cal.set(Calendar.MILLISECOND, 555);
        Millisecond m = new Millisecond(555, 55, 47, 3, 16, 1, 2006);
        assertEquals(cal.getTime(), m.getStart());
        Locale.setDefault(saved);
    }

    /**
     * Some checks for the getEnd() method.
     */
    public void testGetEnd() {
        Locale saved = Locale.getDefault();
        Locale.setDefault(Locale.ITALY);
        Calendar cal = Calendar.getInstance(Locale.ITALY);
        cal.set(2006, Calendar.JANUARY, 16, 3, 47, 55);
        cal.set(Calendar.MILLISECOND, 555);
        Millisecond m = new Millisecond(555, 55, 47, 3, 16, 1, 2006);
        assertEquals(cal.getTime(), m.getEnd());
        Locale.setDefault(saved);
    }

}

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