jfreechart example source code file (QuarterTests.java)

This example jfreechart source code file (QuarterTests.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, date, europe/frankfurt, gregoriancalendar, io, locale, locale, nullpointerexception, quarter, quarter, quartertests, timeperiodformatexception, timezone, timezone, util

The jfreechart QuarterTests.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, 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.]
 *
 * -----------------
 * QuarterTests.java
 * -----------------
 * (C) Copyright 2001-2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 16-Nov-2001 : Version 1 (DG);
 * 17-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 * 13-Mar-2003 : Added serialization test (DG);
 * 11-Jan-2005 : Added check for non-clonability (DG);
 * 05-Oct-2006 : Added some new 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.Quarter;
import org.jfree.data.time.TimePeriodFormatException;
import org.jfree.data.time.Year;

/**
 * Tests for the {link Quarter} class.
 */
public class QuarterTests extends TestCase {

    /** A quarter. */
    private Quarter q1Y1900;

    /** A quarter. */
    private Quarter q2Y1900;

    /** A quarter. */
    private Quarter q3Y9999;

    /** A quarter. */
    private Quarter q4Y9999;

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

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

    /**
     * Common test setup.
     */
    protected void setUp() {
        this.q1Y1900 = new Quarter(1, 1900);
        this.q2Y1900 = new Quarter(2, 1900);
        this.q3Y9999 = new Quarter(3, 9999);
        this.q4Y9999 = new Quarter(4, 9999);
    }

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

    /**
     * Tests the equals method.
     */
    public void testEquals() {
        Quarter q1 = new Quarter(2, 2002);
        Quarter q2 = new Quarter(2, 2002);
        assertTrue(q1.equals(q2));
    }

    /**
     * In GMT, the end of Q1 2002 is java.util.Date(1017619199999L).  Use this
     * to check the quarter constructor.
     */
    public void testDateConstructor1() {

        TimeZone zone = TimeZone.getTimeZone("GMT");
        Quarter q1 = new Quarter(new Date(1017619199999L), zone);
        Quarter q2 = new Quarter(new Date(1017619200000L), zone);

        assertEquals(1, q1.getQuarter());
        assertEquals(1017619199999L, q1.getLastMillisecond(zone));

        assertEquals(2, q2.getQuarter());
        assertEquals(1017619200000L, q2.getFirstMillisecond(zone));

    }

    /**
     * In Istanbul, the end of Q1 2002 is java.util.Date(1017608399999L).  Use
     * this to check the quarter constructor.
     */
    public void testDateConstructor2() {

        TimeZone zone = TimeZone.getTimeZone("Europe/Istanbul");
        Quarter q1 = new Quarter(new Date(1017608399999L), zone);
        Quarter q2 = new Quarter(new Date(1017608400000L), zone);

        assertEquals(1, q1.getQuarter());
        assertEquals(1017608399999L, q1.getLastMillisecond(zone));

        assertEquals(2, q2.getQuarter());
        assertEquals(1017608400000L, q2.getFirstMillisecond(zone));

    }

    /**
     * Set up a quarter equal to Q1 1900.  Request the previous quarter, it
     * should be null.
     */
    public void testQ1Y1900Previous() {
        Quarter previous = (Quarter) this.q1Y1900.previous();
        assertNull(previous);
    }

    /**
     * Set up a quarter equal to Q1 1900.  Request the next quarter, it should
     * be Q2 1900.
     */
    public void testQ1Y1900Next() {
        Quarter next = (Quarter) this.q1Y1900.next();
        assertEquals(this.q2Y1900, next);
    }

    /**
     * Set up a quarter equal to Q4 9999.  Request the previous quarter, it
     * should be Q3 9999.
     */
    public void testQ4Y9999Previous() {
        Quarter previous = (Quarter) this.q4Y9999.previous();
        assertEquals(this.q3Y9999, previous);
    }

    /**
     * Set up a quarter equal to Q4 9999.  Request the next quarter, it should
     * be null.
     */
    public void testQ4Y9999Next() {
        Quarter next = (Quarter) this.q4Y9999.next();
        assertNull(next);
    }

    /**
     * Test the string parsing code...
     */
    public void testParseQuarter() {

        Quarter quarter = null;

        // test 1...
        try {
            quarter = Quarter.parseQuarter("Q1-2000");
        }
        catch (TimePeriodFormatException e) {
            quarter = new Quarter(1, 1900);
        }
        assertEquals(1, quarter.getQuarter());
        assertEquals(2000, quarter.getYear().getYear());

        // test 2...
        try {
            quarter = Quarter.parseQuarter("2001-Q2");
        }
        catch (TimePeriodFormatException e) {
            quarter = new Quarter(1, 1900);
        }
        assertEquals(2, quarter.getQuarter());
        assertEquals(2001, quarter.getYear().getYear());

        // test 3...
        try {
            quarter = Quarter.parseQuarter("Q3, 2002");
        }
        catch (TimePeriodFormatException e) {
            quarter = new Quarter(1, 1900);
        }
        assertEquals(3, quarter.getQuarter());
        assertEquals(2002, quarter.getYear().getYear());

    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {

        Quarter q1 = new Quarter(4, 1999);
        Quarter q2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(q1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                new ByteArrayInputStream(buffer.toByteArray())
            );
            q2 = (Quarter) in.readObject();
            in.close();
        }
        catch (Exception e) {
            System.out.println(e.toString());
        }
        assertEquals(q1, q2);

    }

    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashcode() {
        Quarter q1 = new Quarter(2, 2003);
        Quarter q2 = new Quarter(2, 2003);
        assertTrue(q1.equals(q2));
        int h1 = q1.hashCode();
        int h2 = q2.hashCode();
        assertEquals(h1, h2);
    }

    /**
     * The {@link Quarter} class is immutable, so should not be
     * {@link Cloneable}.
     */
    public void testNotCloneable() {
        Quarter q = new Quarter(2, 2003);
        assertFalse(q instanceof Cloneable);
    }

    /**
     * Some tests for the constructor with (int, int) arguments.  Covers bug
     * report 1377239.
     */
    public void testConstructor() {
        boolean pass = false;
        try {
            /*Quarter q =*/ new Quarter(0, 2005);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);

        pass = false;
        try {
            /*Quarter q =*/ new Quarter(5, 2005);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * 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"));
        Quarter q = new Quarter(3, 1970);
        assertEquals(15634800000L, q.getFirstMillisecond());
        Locale.setDefault(saved);
        TimeZone.setDefault(savedZone);
    }

    /**
     * Some checks for the getFirstMillisecond(TimeZone) method.
     */
    public void testGetFirstMillisecondWithTimeZone() {
        Quarter q = new Quarter(2, 1950);
        TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles");
        assertEquals(-623347200000L, q.getFirstMillisecond(zone));

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

    /**
     * Some checks for the getFirstMillisecond(TimeZone) method.
     */
    public void testGetFirstMillisecondWithCalendar() {
        Quarter q = new Quarter(1, 2001);
        GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY);
        calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt"));
        assertEquals(978307200000L, q.getFirstMillisecond(calendar));

        // try null calendar
        boolean pass = false;
        try {
            q.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"));
        Quarter q = new Quarter(3, 1970);
        assertEquals(23583599999L, q.getLastMillisecond());
        Locale.setDefault(saved);
        TimeZone.setDefault(savedZone);
    }

    /**
     * Some checks for the getLastMillisecond(TimeZone) method.
     */
    public void testGetLastMillisecondWithTimeZone() {
        Quarter q = new Quarter(2, 1950);
        TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles");
        assertEquals(-615488400001L, q.getLastMillisecond(zone));

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

    /**
     * Some checks for the getLastMillisecond(TimeZone) method.
     */
    public void testGetLastMillisecondWithCalendar() {
        Quarter q = new Quarter(3, 2001);
        GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY);
        calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt"));
        assertEquals(1001894399999L, q.getLastMillisecond(calendar));

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

    /**
     * Some checks for the getSerialIndex() method.
     */
    public void testGetSerialIndex() {
        Quarter q = new Quarter(1, 2000);
        assertEquals(8001L, q.getSerialIndex());
        q = new Quarter(1, 1900);
        assertEquals(7601L, q.getSerialIndex());
    }

    /**
     * Some checks for the testNext() method.
     */
    public void testNext() {
        Quarter q = new Quarter(1, 2000);
        q = (Quarter) q.next();
        assertEquals(new Year(2000), q.getYear());
        assertEquals(2, q.getQuarter());
        q = new Quarter(4, 9999);
        assertNull(q.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.JULY, 1, 0, 0, 0);
        cal.set(Calendar.MILLISECOND, 0);
        Quarter q = new Quarter(3, 2006);
        assertEquals(cal.getTime(), q.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.MARCH, 31, 23, 59, 59);
        cal.set(Calendar.MILLISECOND, 999);
        Quarter q = new Quarter(1, 2006);
        assertEquals(cal.getTime(), q.getEnd());
        Locale.setDefault(saved);
    }
}