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jfreechart example source code file (MinuteTests.java)

This example jfreechart source code file (MinuteTests.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

calendar, date, day, gregoriancalendar, hour, hour, io, locale, locale, minute, minute, minutetests, nullpointerexception, timezone, timezone, util

The jfreechart MinuteTests.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.]
 *
 * ----------------
 * MinuteTests.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);
 * 13-Mar-2003 : Added serialization test (DG);
 * 21-Oct-2003 : Added hashCode test (DG);
 * 11-Jan-2005 : Added test for non-clonability (DG);
 * 05-Oct-2006 : Added new tests (DG);
 * 11-Dec-2006 : Added test1611872() (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.Minute;
import org.jfree.date.MonthConstants;

/**
 * Tests for the {@link Minute} class.
 */
public class MinuteTests extends TestCase {

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

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

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

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

    /**
     * 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);
        Day day2 = new Day(29, MonthConstants.MARCH, 2002);
        Hour hour2 = new Hour(15, day2);
        Minute minute2 = new Minute(15, hour2);
        assertTrue(minute1.equals(minute2));
    }

    /**
     * In GMT, the 4.55pm on 21 Mar 2002 is java.util.Date(1016729700000L).
     * Use this to check the Minute constructor.
     */
    public void testDateConstructor1() {
        TimeZone zone = TimeZone.getTimeZone("GMT");
        Locale locale = Locale.getDefault(); // locale should not matter here
        Minute m1 = new Minute(new Date(1016729699999L), zone, locale);
        Minute m2 = new Minute(new Date(1016729700000L), zone, locale);

        assertEquals(54, m1.getMinute());
        assertEquals(1016729699999L, m1.getLastMillisecond(zone));

        assertEquals(55, m2.getMinute());
        assertEquals(1016729700000L, m2.getFirstMillisecond(zone));
    }

    /**
     * In Singapore, the 4.55pm on 21 Mar 2002 is
     * java.util.Date(1,014,281,700,000L). Use this to check the Minute
     * constructor.
     */
    public void testDateConstructor2() {
        TimeZone zone = TimeZone.getTimeZone("Asia/Singapore");
        Locale locale = Locale.getDefault(); // locale should not matter here
        Minute m1 = new Minute(new Date(1016700899999L), zone, locale);
        Minute m2 = new Minute(new Date(1016700900000L), zone, locale);

        assertEquals(54, m1.getMinute());
        assertEquals(1016700899999L, m1.getLastMillisecond(zone));

        assertEquals(55, m2.getMinute());
        assertEquals(1016700900000L, m2.getFirstMillisecond(zone));
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        Minute m1 = new Minute();
        Minute 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 = (Minute) in.readObject();
            in.close();
        }
        catch (Exception e) {
            System.out.println(e.toString());
        }
        assertEquals(m1, m2);
    }

    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashcode() {
        Minute m1 = new Minute(45, 5, 1, 2, 2003);
        Minute m2 = new Minute(45, 5, 1, 2, 2003);
        assertTrue(m1.equals(m2));
        int h1 = m1.hashCode();
        int h2 = m2.hashCode();
        assertEquals(h1, h2);
    }

    /**
     * The {@link Minute} class is immutable, so should not be
     * {@link Cloneable}.
     */
    public void testNotCloneable() {
        Minute m = new Minute(45, 5, 1, 2, 2003);
        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"));
        Minute m = new Minute(43, 15, 1, 4, 2006);
        assertEquals(1143902580000L, m.getFirstMillisecond());
        Locale.setDefault(saved);
        TimeZone.setDefault(savedZone);
    }

    /**
     * Some checks for the getFirstMillisecond(TimeZone) method.
     */
    public void testGetFirstMillisecondWithTimeZone() {
        Minute m = new Minute(59, 15, 1, 4, 1950);
        TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles");
        assertEquals(-623289660000L, 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() {
        Minute m = new Minute(40, 2, 15, 4, 2000);
        GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY);
        calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt"));
        assertEquals(955766400000L, 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"));
        Minute m = new Minute(1, 1, 1, 1, 1970);
        assertEquals(119999L, m.getLastMillisecond());
        Locale.setDefault(saved);
        TimeZone.setDefault(savedZone);
    }

    /**
     * Some checks for the getLastMillisecond(TimeZone) method.
     */
    public void testGetLastMillisecondWithTimeZone() {
        Minute m = new Minute(1, 2, 7, 7, 1950);
        TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles");
        assertEquals(-614962680001L, 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() {
        Minute m = new Minute(45, 21, 21, 4, 2001);
        GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY);
        calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt"));
        assertEquals(987889559999L, 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() {
        Minute m = new Minute(1, 1, 1, 1, 2000);
        assertEquals(52597501L, m.getSerialIndex());
        m = new Minute(1, 1, 1, 1, 1900);
        assertEquals(2941L, m.getSerialIndex());
    }

    /**
     * Some checks for the testNext() method.
     */
    public void testNext() {
        Minute m = new Minute(30, 1, 12, 12, 2000);
        m = (Minute) m.next();
        assertEquals(2000, m.getHour().getYear());
        assertEquals(12, m.getHour().getMonth());
        assertEquals(12, m.getHour().getDayOfMonth());
        assertEquals(1, m.getHour().getHour());
        assertEquals(31, m.getMinute());
        m = new Minute(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);
        TimeZone savedZone = TimeZone.getDefault();
        TimeZone.setDefault(TimeZone.getTimeZone("Europe/Rome"));
        Calendar cal = Calendar.getInstance(Locale.ITALY);
        cal.set(2006, Calendar.JANUARY, 16, 3, 47, 0);
        cal.set(Calendar.MILLISECOND, 0);
        Minute m = new Minute(47, 3, 16, 1, 2006);
        assertEquals(cal.getTime(), m.getStart());
        Locale.setDefault(saved);
        TimeZone.setDefault(savedZone);
    }

    /**
     * Some checks for the getEnd() method.
     */
    public void testGetEnd() {
        Locale saved = Locale.getDefault();
        Locale.setDefault(Locale.ITALY);
        TimeZone savedZone = TimeZone.getDefault();
        TimeZone.setDefault(TimeZone.getTimeZone("Europe/Rome"));
        Calendar cal = Calendar.getInstance(Locale.ITALY);
        cal.set(2006, Calendar.JANUARY, 16, 3, 47, 59);
        cal.set(Calendar.MILLISECOND, 999);
        Minute m = new Minute(47, 3, 16, 1, 2006);
        assertEquals(cal.getTime(), m.getEnd());
        Locale.setDefault(saved);
        TimeZone.setDefault(savedZone);
    }

    /**
     * Test for bug 1611872 - previous() fails for first minute in hour.
     */
    public void test1611872() {
        Minute m1 = new Minute(0, 10, 15, 4, 2000);
        Minute m2 = (Minute) m1.previous();
        assertEquals(m2, new Minute(59, 9, 15, 4, 2000));
    }

}

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