alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

jfreechart example source code file (DefaultXYZDatasetTests.java)

This example jfreechart source code file (DefaultXYZDatasetTests.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, bytearrayoutputstream, clonenotsupportedexception, defaultxyzdataset, defaultxyzdataset, defaultxyzdatasettests, exception, illegalargumentexception, io, objectinput, objectoutputstream, s1, s1, s2, s2

The jfreechart DefaultXYZDatasetTests.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.]
 *
 * ---------------------------
 * DefaultXYZDatasetTests.java
 * ---------------------------
 * (C) Copyright 2006-2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 12-Jul-2006 : Version 1 (DG);
 * 02-Nov-2006 : Added testAddSeries() method (DG);
 * 22-Apr-2008 : Added testPublicCloneable (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.xy.DefaultXYZDataset;
import org.jfree.util.PublicCloneable;

/**
 * Tests for {@link DefaultXYZDataset}.
 */
public class DefaultXYZDatasetTests extends TestCase {

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

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

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

        DefaultXYZDataset d1 = new DefaultXYZDataset();
        DefaultXYZDataset d2 = new DefaultXYZDataset();
        assertTrue(d1.equals(d2));
        assertTrue(d2.equals(d1));

        double[] x1 = new double[] {1.0, 2.0, 3.0};
        double[] y1 = new double[] {4.0, 5.0, 6.0};
        double[] z1 = new double[] {7.0, 8.0, 9.0};
        double[][] data1 = new double[][] {x1, y1, z1};
        double[] x2 = new double[] {1.0, 2.0, 3.0};
        double[] y2 = new double[] {4.0, 5.0, 6.0};
        double[] z2 = new double[] {7.0, 8.0, 9.0};
        double[][] data2 = new double[][] {x2, y2, z2};
        d1.addSeries("S1", data1);
        assertFalse(d1.equals(d2));
        d2.addSeries("S1", data2);
        assertTrue(d1.equals(d2));
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        DefaultXYZDataset d1 = new DefaultXYZDataset();
        DefaultXYZDataset d2 = null;
        try {
            d2 = (DefaultXYZDataset) d1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(d1 != d2);
        assertTrue(d1.getClass() == d2.getClass());
        assertTrue(d1.equals(d2));

        // try a dataset with some content...
        double[] x1 = new double[] {1.0, 2.0, 3.0};
        double[] y1 = new double[] {4.0, 5.0, 6.0};
        double[] z1 = new double[] {7.0, 8.0, 9.0};
        double[][] data1 = new double[][] {x1, y1, z1};
        d1.addSeries("S1", data1);
        try {
            d2 = (DefaultXYZDataset) d1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(d1 != d2);
        assertTrue(d1.getClass() == d2.getClass());
        assertTrue(d1.equals(d2));

        // check that the clone doesn't share the same underlying arrays.
        x1[1] = 2.2;
        assertFalse(d1.equals(d2));
        x1[1] = 2.0;
        assertTrue(d1.equals(d2));
    }

    /**
     * Verify that this class implements {@link PublicCloneable}.
     */
    public void testPublicCloneable() {
        DefaultXYZDataset d1 = new DefaultXYZDataset();
        assertTrue(d1 instanceof PublicCloneable);
    }

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

        DefaultXYZDataset d1 = new DefaultXYZDataset();
        DefaultXYZDataset d2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(d1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                new ByteArrayInputStream(buffer.toByteArray())
            );
            d2 = (DefaultXYZDataset) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(d1, d2);

        // try a dataset with some content...
        double[] x1 = new double[] {1.0, 2.0, 3.0};
        double[] y1 = new double[] {4.0, 5.0, 6.0};
        double[] z1 = new double[] {7.0, 8.0, 9.0};
        double[][] data1 = new double[][] {x1, y1, z1};
        d1.addSeries("S1", data1);
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(d1);
            out.close();

            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                    buffer.toByteArray()));
            d2 = (DefaultXYZDataset) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(d1, d2);

    }

    /**
     * Some checks for the getSeriesKey(int) method.
     */
    public void testGetSeriesKey() {
        DefaultXYZDataset d = createSampleDataset1();
        assertEquals("S1", d.getSeriesKey(0));
        assertEquals("S2", d.getSeriesKey(1));

        // check for series key out of bounds
        boolean pass = false;
        try {
            /*Comparable k =*/ d.getSeriesKey(-1);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);

        pass = false;
        try {
            /*Comparable k =*/ d.getSeriesKey(2);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some checks for the indexOf(Comparable) method.
     */
    public void testIndexOf() {
        DefaultXYZDataset d = createSampleDataset1();
        assertEquals(0, d.indexOf("S1"));
        assertEquals(1, d.indexOf("S2"));
        assertEquals(-1, d.indexOf("Green Eggs and Ham"));
        assertEquals(-1, d.indexOf(null));
    }

    static final double EPSILON = 0.0000000001;

    /**
     * Some tests for the addSeries() method.
     */
    public void testAddSeries() {
        DefaultXYZDataset d = new DefaultXYZDataset();
        d.addSeries("S1", new double[][] {{1.0}, {2.0}, {3.0}});
        assertEquals(1, d.getSeriesCount());
        assertEquals("S1", d.getSeriesKey(0));

        // check that adding a series will overwrite the old series
        d.addSeries("S1", new double[][] {{11.0}, {12.0}, {13.0}});
        assertEquals(1, d.getSeriesCount());
        assertEquals(12.0, d.getYValue(0, 0), EPSILON);

        // check null key
        boolean pass = false;
        try
        {
          d.addSeries(null, new double[][] {{1.0}, {2.0}, {3.0}});
        }
        catch (IllegalArgumentException e)
        {
          pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Creates a sample dataset for testing.
     *
     * @return A sample dataset.
     */
    public DefaultXYZDataset createSampleDataset1() {
        DefaultXYZDataset d = new DefaultXYZDataset();
        double[] x1 = new double[] {1.0, 2.0, 3.0};
        double[] y1 = new double[] {4.0, 5.0, 6.0};
        double[] z1 = new double[] {7.0, 8.0, 9.0};
        double[][] data1 = new double[][] {x1, y1, z1};
        d.addSeries("S1", data1);

        double[] x2 = new double[] {1.0, 2.0, 3.0};
        double[] y2 = new double[] {4.0, 5.0, 6.0};
        double[] z2 = new double[] {7.0, 8.0, 9.0};
        double[][] data2 = new double[][] {x2, y2, z2};
        d.addSeries("S2", data2);
        return d;
    }

}

Other jfreechart examples (source code examples)

Here is a short list of links related to this jfreechart DefaultXYZDatasetTests.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.