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jfreechart example source code file (XYSeriesCollectionTests.java)

This example jfreechart source code file (XYSeriesCollectionTests.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

bytearrayoutputstream, epsilon, illegalargumentexception, illegalargumentexception, io, range, s1, s2, series, series, xyseries, xyseries, xyseriescollection, xyseriescollection, xyseriescollectiontests

The jfreechart XYSeriesCollectionTests.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.]
 *
 * ----------------------------
 * XYSeriesCollectionTests.java
 * ----------------------------
 * (C) Copyright 2003-2009, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 18-May-2003 : Version 1 (DG);
 * 27-Nov-2006 : Updated testCloning() (DG);
 * 08-Mar-2007 : Added testGetSeries() and testRemoveSeries() (DG);
 * 08-May-2007 : Added testIndexOf() (DG);
 * 03-Dec-2007 : Added testGetSeriesByKey() (DG);
 * 22-Apr-2008 : Added testPublicCloneable (DG);
 * 06-Mar-2009 : Added testGetDomainBounds (DG);
 *
 */

package org.jfree.data.xy.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 junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.jfree.data.Range;
import org.jfree.data.UnknownKeyException;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.util.PublicCloneable;

/**
 * Tests for the {@link XYSeriesCollection} class.
 */
public class XYSeriesCollectionTests extends TestCase {

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

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

    private static final double EPSILON = 0.0000000001;

    /**
     * Some checks for the constructor.
     */
    public void testConstructor() {
        XYSeriesCollection xysc = new XYSeriesCollection();
        assertEquals(0, xysc.getSeriesCount());
        assertEquals(1.0, xysc.getIntervalWidth(), EPSILON);
        assertEquals(0.5, xysc.getIntervalPositionFactor(), EPSILON);
    }

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        XYSeries s1 = new XYSeries("Series");
        s1.add(1.0, 1.1);
        XYSeriesCollection c1 = new XYSeriesCollection();
        c1.addSeries(s1);
        XYSeries s2 = new XYSeries("Series");
        s2.add(1.0, 1.1);
        XYSeriesCollection c2 = new XYSeriesCollection();
        c2.addSeries(s2);
        assertTrue(c1.equals(c2));
        assertTrue(c2.equals(c1));

        c1.addSeries(new XYSeries("Empty Series"));
        assertFalse(c1.equals(c2));
        c2.addSeries(new XYSeries("Empty Series"));
        assertTrue(c1.equals(c2));

        c1.setIntervalWidth(5.0);
        assertFalse(c1.equals(c2));
        c2.setIntervalWidth(5.0);
        assertTrue(c1.equals(c2));

        c1.setIntervalPositionFactor(0.75);
        assertFalse(c1.equals(c2));
        c2.setIntervalPositionFactor(0.75);
        assertTrue(c1.equals(c2));

        c1.setAutoWidth(true);
        assertFalse(c1.equals(c2));
        c2.setAutoWidth(true);
        assertTrue(c1.equals(c2));

    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        XYSeries s1 = new XYSeries("Series");
        s1.add(1.0, 1.1);
        XYSeriesCollection c1 = new XYSeriesCollection();
        c1.addSeries(s1);
        XYSeriesCollection c2 = null;
        try {
            c2 = (XYSeriesCollection) c1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(c1 != c2);
        assertTrue(c1.getClass() == c2.getClass());
        assertTrue(c1.equals(c2));

        // check independence
        s1.setDescription("XYZ");
        assertFalse(c1.equals(c2));
    }

    /**
     * Verify that this class implements {@link PublicCloneable}.
     */
    public void testPublicCloneable() {
        XYSeriesCollection c1 = new XYSeriesCollection();
        assertTrue(c1 instanceof PublicCloneable);
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        XYSeries s1 = new XYSeries("Series");
        s1.add(1.0, 1.1);
        XYSeriesCollection c1 = new XYSeriesCollection();
        c1.addSeries(s1);
        XYSeriesCollection c2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(c1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            c2 = (XYSeriesCollection) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(c1, c2);
    }

    /**
     * A test for bug report 1170825.
     */
    public void test1170825() {
        XYSeries s1 = new XYSeries("Series1");
        XYSeriesCollection dataset = new XYSeriesCollection();
        dataset.addSeries(s1);
        try {
            /* XYSeries s = */ dataset.getSeries(1);
        }
        catch (IllegalArgumentException e) {
            // correct outcome
        }
        catch (IndexOutOfBoundsException e) {
            assertTrue(false);  // wrong outcome
        }
    }

    /**
     * Some basic checks for the getSeries() method.
     */
    public void testGetSeries() {
        XYSeriesCollection c = new XYSeriesCollection();
        XYSeries s1 = new XYSeries("s1");
        c.addSeries(s1);
        assertEquals("s1", c.getSeries(0).getKey());

        boolean pass = false;
        try {
            c.getSeries(-1);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);

        pass = false;
        try {
            c.getSeries(1);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some checks for the getSeries(Comparable) method.
     */
    public void testGetSeriesByKey() {
        XYSeriesCollection c = new XYSeriesCollection();
        XYSeries s1 = new XYSeries("s1");
        c.addSeries(s1);
        assertEquals("s1", c.getSeries("s1").getKey());

        boolean pass = false;
        try {
            c.getSeries("s2");
        }
        catch (UnknownKeyException e) {
            pass = true;
        }
        assertTrue(pass);

        pass = false;
        try {
            c.getSeries(null);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some basic checks for the removeSeries() method.
     */
    public void testRemoveSeries() {
        XYSeriesCollection c = new XYSeriesCollection();
        XYSeries s1 = new XYSeries("s1");
        c.addSeries(s1);
        c.removeSeries(0);
        assertEquals(0, c.getSeriesCount());
        c.addSeries(s1);

        boolean pass = false;
        try {
            c.removeSeries(-1);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);

        pass = false;
        try {
            c.removeSeries(1);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some tests for the indexOf() method.
     */
    public void testIndexOf() {
        XYSeries s1 = new XYSeries("S1");
        XYSeries s2 = new XYSeries("S2");
        XYSeriesCollection dataset = new XYSeriesCollection();
        assertEquals(-1, dataset.indexOf(s1));
        assertEquals(-1, dataset.indexOf(s2));

        dataset.addSeries(s1);
        assertEquals(0, dataset.indexOf(s1));
        assertEquals(-1, dataset.indexOf(s2));

        dataset.addSeries(s2);
        assertEquals(0, dataset.indexOf(s1));
        assertEquals(1, dataset.indexOf(s2));

        dataset.removeSeries(s1);
        assertEquals(-1, dataset.indexOf(s1));
        assertEquals(0, dataset.indexOf(s2));

        XYSeries s2b = new XYSeries("S2");
        assertEquals(0, dataset.indexOf(s2b));
    }

    /**
     * Some checks for the getDomainBounds() method.
     */
    public void testGetDomainBounds() {
        XYSeriesCollection dataset = new XYSeriesCollection();
        Range r = dataset.getDomainBounds(false);
        assertNull(r);
        r = dataset.getDomainBounds(true);
        assertNull(r);

        XYSeries series = new XYSeries("S1");
        dataset.addSeries(series);
        r = dataset.getDomainBounds(false);
        assertNull(r);
        r = dataset.getDomainBounds(true);
        assertNull(r);

        series.add(1.0, 1.1);
        r = dataset.getDomainBounds(false);
        assertEquals(new Range(1.0, 1.0), r);
        r = dataset.getDomainBounds(true);
        assertEquals(new Range(0.5, 1.5), r);

        series.add(-1.0, -1.1);
        r = dataset.getDomainBounds(false);
        assertEquals(new Range(-1.0, 1.0), r);
        r = dataset.getDomainBounds(true);
        assertEquals(new Range(-1.5, 1.5), r);
    }

    /**
     * Some checks for the getRangeBounds() method.
     */
    public void testGetRangeBounds() {
        XYSeriesCollection dataset = new XYSeriesCollection();
        Range r = dataset.getRangeBounds(false);
        assertNull(r);
        r = dataset.getRangeBounds(true);
        assertNull(r);

        XYSeries series = new XYSeries("S1");
        dataset.addSeries(series);
        r = dataset.getRangeBounds(false);
        assertNull(r);
        r = dataset.getRangeBounds(true);
        assertNull(r);

        series.add(1.0, 1.1);
        r = dataset.getRangeBounds(false);
        assertEquals(new Range(1.1, 1.1), r);
        r = dataset.getRangeBounds(true);
        assertEquals(new Range(1.1, 1.1), r);

        series.add(-1.0, -1.1);
        r = dataset.getRangeBounds(false);
        assertEquals(new Range(-1.1, 1.1), r);
        r = dataset.getRangeBounds(true);
        assertEquals(new Range(-1.1, 1.1), r);
    }

}

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