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jfreechart example source code file (PeriodAxisTests.java)

This example jfreechart source code file (PeriodAxisTests.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

awt, bogus, day, day, epsilon, gregoriancalendar, io, periodaxis, periodaxis, periodaxislabelinfo, simpledateformat, test, test, testaxis, text, util, year, year

The jfreechart PeriodAxisTests.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.]
 *
 * --------------------
 * PeriodAxisTests.java
 * --------------------
 * (C) Copyright 2004-2009, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 10-Jun-2003 : Version 1 (DG);
 * 07-Jan-2005 : Added test for hashCode() method (DG);
 * 08-Apr-2008 : Added test1932146() (DG);
 * 16-Jan-2009 : Added test2490803() (DG);
 * 02-Mar-2009 : Added testEqualsWithLocale (DG);
 *
 */

package org.jfree.chart.axis.junit;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Stroke;
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.text.SimpleDateFormat;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.SimpleTimeZone;
import java.util.TimeZone;

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

import org.jfree.chart.axis.PeriodAxis;
import org.jfree.chart.axis.PeriodAxisLabelInfo;
import org.jfree.chart.event.AxisChangeEvent;
import org.jfree.chart.event.AxisChangeListener;
import org.jfree.data.Range;
import org.jfree.data.time.DateRange;
import org.jfree.data.time.Day;
import org.jfree.data.time.Minute;
import org.jfree.data.time.Month;
import org.jfree.data.time.Quarter;
import org.jfree.data.time.Second;
import org.jfree.data.time.Year;

/**
 * Tests for the {@link PeriodAxis} class.
 */
public class PeriodAxisTests extends TestCase implements AxisChangeListener {

    /** The last event received. */
    private AxisChangeEvent lastEvent;

    /**
     * Receives and records an {@link AxisChangeEvent}.
     *
     * @param event  the event.
     */
    public void axisChanged(AxisChangeEvent event) {
        this.lastEvent = event;
    }

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

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

    /**
     * Confirm that the equals() method can distinguish all the required fields.
     */
    public void testEquals() {

        PeriodAxis a1 = new PeriodAxis("Test");
        PeriodAxis a2 = new PeriodAxis("Test");
        assertTrue(a1.equals(a2));
        assertTrue(a2.equals(a1));

        a1.setFirst(new Year(2000));
        assertFalse(a1.equals(a2));
        a2.setFirst(new Year(2000));
        assertTrue(a1.equals(a2));

        a1.setLast(new Year(2004));
        assertFalse(a1.equals(a2));
        a2.setLast(new Year(2004));
        assertTrue(a1.equals(a2));

        a1.setTimeZone(TimeZone.getTimeZone("Pacific/Auckland"));
        assertFalse(a1.equals(a2));
        a2.setTimeZone(TimeZone.getTimeZone("Pacific/Auckland"));
        assertTrue(a1.equals(a2));

        a1.setAutoRangeTimePeriodClass(Quarter.class);
        assertFalse(a1.equals(a2));
        a2.setAutoRangeTimePeriodClass(Quarter.class);
        assertTrue(a1.equals(a2));

        PeriodAxisLabelInfo info[] = new PeriodAxisLabelInfo[1];
        info[0] = new PeriodAxisLabelInfo(Month.class,
                new SimpleDateFormat("MMM"));

        a1.setLabelInfo(info);
        assertFalse(a1.equals(a2));
        a2.setLabelInfo(info);
        assertTrue(a1.equals(a2));

        a1.setMajorTickTimePeriodClass(Minute.class);
        assertFalse(a1.equals(a2));
        a2.setMajorTickTimePeriodClass(Minute.class);
        assertTrue(a1.equals(a2));

        a1.setMinorTickMarksVisible(!a1.isMinorTickMarksVisible());
        assertFalse(a1.equals(a2));
        a2.setMinorTickMarksVisible(a1.isMinorTickMarksVisible());
        assertTrue(a1.equals(a2));

        a1.setMinorTickTimePeriodClass(Minute.class);
        assertFalse(a1.equals(a2));
        a2.setMinorTickTimePeriodClass(Minute.class);
        assertTrue(a1.equals(a2));

        Stroke s = new BasicStroke(1.23f);
        a1.setMinorTickMarkStroke(s);
        assertFalse(a1.equals(a2));
        a2.setMinorTickMarkStroke(s);
        assertTrue(a1.equals(a2));

        a1.setMinorTickMarkPaint(Color.blue);
        assertFalse(a1.equals(a2));
        a2.setMinorTickMarkPaint(Color.blue);
        assertTrue(a1.equals(a2));

    }

    /**
     * Confirm that the equals() method can distinguish the locale field (which
     * is new in version 1.0.13).
     */
    public void testEqualsWithLocale() {
        PeriodAxis a1 = new PeriodAxis("Test", new Year(2000), new Year(2009),
                TimeZone.getDefault(), Locale.JAPAN);
        PeriodAxis a2 = new PeriodAxis("Test", new Year(2000), new Year(2009),
                TimeZone.getDefault(), Locale.JAPAN);
        assertTrue(a1.equals(a2));
        assertTrue(a2.equals(a1));

        a1 = new PeriodAxis("Test", new Year(2000), new Year(2009),
                TimeZone.getDefault(), Locale.UK);
        assertFalse(a1.equals(a2));
        a2 = new PeriodAxis("Test", new Year(2000), new Year(2009),
                TimeZone.getDefault(), Locale.UK);
        assertTrue(a1.equals(a2));
    }

        /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashCode() {
        PeriodAxis a1 = new PeriodAxis("Test");
        PeriodAxis a2 = new PeriodAxis("Test");
        assertTrue(a1.equals(a2));
        int h1 = a1.hashCode();
        int h2 = a2.hashCode();
        assertEquals(h1, h2);
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        PeriodAxis a1 = new PeriodAxis("Test");
        PeriodAxis a2 = null;
        try {
            a2 = (PeriodAxis) a1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(a1 != a2);
        assertTrue(a1.getClass() == a2.getClass());
        assertTrue(a1.equals(a2));

        // some checks that the clone is independent of the original
        a1.setLabel("New Label");
        assertFalse(a1.equals(a2));
        a2.setLabel("New Label");
        assertTrue(a1.equals(a2));

        a1.setFirst(new Year(1920));
        assertFalse(a1.equals(a2));
        a2.setFirst(new Year(1920));
        assertTrue(a1.equals(a2));

        a1.setLast(new Year(2020));
        assertFalse(a1.equals(a2));
        a2.setLast(new Year(2020));
        assertTrue(a1.equals(a2));

        PeriodAxisLabelInfo[] info = new PeriodAxisLabelInfo[2];
        info[0] = new PeriodAxisLabelInfo(Day.class, new SimpleDateFormat("d"));
        info[1] = new PeriodAxisLabelInfo(Year.class,
                new SimpleDateFormat("yyyy"));
        a1.setLabelInfo(info);
        assertFalse(a1.equals(a2));
        a2.setLabelInfo(info);
        assertTrue(a1.equals(a2));

        a1.setAutoRangeTimePeriodClass(Second.class);
        assertFalse(a1.equals(a2));
        a2.setAutoRangeTimePeriodClass(Second.class);
        assertTrue(a1.equals(a2));

        a1.setTimeZone(new SimpleTimeZone(123, "Bogus"));
        assertFalse(a1.equals(a2));
        a2.setTimeZone(new SimpleTimeZone(123, "Bogus"));
        assertTrue(a1.equals(a2));

    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        PeriodAxis a1 = new PeriodAxis("Test Axis");
        PeriodAxis a2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(a1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            a2 = (PeriodAxis) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        boolean b = a1.equals(a2);
        assertTrue(b);
    }

    /**
     * A test for bug 1932146.
     */
    public void test1932146() {
        PeriodAxis axis = new PeriodAxis("TestAxis");
        axis.addChangeListener(this);
        this.lastEvent = null;
        axis.setRange(new DateRange(0L, 1000L));
        assertTrue(this.lastEvent != null);
    }

    private static final double EPSILON = 0.0000000001;

    /**
     * A test for the setRange() method (because the axis shows whole time
     * periods, the range set for the axis will most likely be wider than the
     * one specified).
     */
    public void test2490803() {
        Locale savedLocale = Locale.getDefault();
        TimeZone savedTimeZone = TimeZone.getDefault();
        try {
            Locale.setDefault(Locale.FRANCE);
            TimeZone.setDefault(TimeZone.getTimeZone("Europe/Paris"));
            GregorianCalendar c0 = new GregorianCalendar();
            c0.clear();
            /* c0.set(2009, Calendar.JANUARY, 16, 12, 34, 56);
            System.out.println(c0.getTime().getTime());
            c0.clear();
            c0.set(2009, Calendar.JANUARY, 17, 12, 34, 56);
            System.out.println(c0.getTime().getTime()); */
            PeriodAxis axis = new PeriodAxis("TestAxis");
            axis.setRange(new Range(1232105696000L, 1232192096000L), false,
                    false);
            Range r = axis.getRange();
            Day d0 = new Day(16, 1, 2009);
            Day d1 = new Day(17, 1, 2009);
            assertEquals(d0.getFirstMillisecond(), r.getLowerBound(), EPSILON);
            assertEquals(d1.getLastMillisecond() + 1.0, r.getUpperBound(),
                    EPSILON);
        }
        finally {
            TimeZone.setDefault(savedTimeZone);
            Locale.setDefault(savedLocale);
        }
    }

}

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