jfreechart example source code file (ChartRenderingInfoTests.java)

This example jfreechart source code file (ChartRenderingInfoTests.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, bytearrayinputstream, bytearrayoutputstream, bytearrayoutputstream, chartentity, chartrenderinginfo, chartrenderinginfo, chartrenderinginfotests, exception, geometry, io, objectinput, objectoutputstream, rectangle, rectangle, standardentitycollection, standardentitycollection

The jfreechart ChartRenderingInfoTests.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.]
 *
 * ----------------------------
 * ChartRenderingInfoTests.java
 * ----------------------------
 * (C) Copyright 2004-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 19-Mar-2004 : Version 1 (DG);
 * 30-Nov-2005 : Updated for removed field in ChartRenderingInfo (DG);
 *
 */

package org.jfree.chart.junit;

import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
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.chart.ChartRenderingInfo;
import org.jfree.chart.entity.ChartEntity;
import org.jfree.chart.entity.StandardEntityCollection;

/**
 * Tests for the {@link ChartRenderingInfo} class.
 */
public class ChartRenderingInfoTests extends TestCase {

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

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

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        ChartRenderingInfo i1 = new ChartRenderingInfo();
        ChartRenderingInfo i2 = new ChartRenderingInfo();
        assertTrue(i1.equals(i2));

        i1.setChartArea(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
        assertFalse(i1.equals(i2));
        i2.setChartArea(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
        assertTrue(i1.equals(i2));

        i1.getPlotInfo().setDataArea(new Rectangle(1, 2, 3, 4));
        assertFalse(i1.equals(i2));
        i2.getPlotInfo().setDataArea(new Rectangle(1, 2, 3, 4));
        assertTrue(i1.equals(i2));

        StandardEntityCollection e1 = new StandardEntityCollection();
        e1.add(new ChartEntity(new Rectangle(1, 2, 3, 4)));
        i1.setEntityCollection(e1);
        assertFalse(i1.equals(i2));
        StandardEntityCollection e2 = new StandardEntityCollection();
        e2.add(new ChartEntity(new Rectangle(1, 2, 3, 4)));
        i2.setEntityCollection(e2);
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        ChartRenderingInfo i1 = new ChartRenderingInfo();
        ChartRenderingInfo i2 = null;
        try {
            i2 = (ChartRenderingInfo) i1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(i1 != i2);
        assertTrue(i1.getClass() == i2.getClass());
        assertTrue(i1.equals(i2));

        // check independence
        i1.getChartArea().setRect(4.0, 3.0, 2.0, 1.0);
        assertFalse(i1.equals(i2));
        i2.getChartArea().setRect(4.0, 3.0, 2.0, 1.0);
        assertTrue(i1.equals(i2));

        i1.getEntityCollection().add(new ChartEntity(new Rectangle(1, 2, 2,
                1)));
        assertFalse(i1.equals(i2));
        i2.getEntityCollection().add(new ChartEntity(new Rectangle(1, 2, 2,
                1)));
        assertTrue(i1.equals(i2));

    }

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

        ChartRenderingInfo i1 = new ChartRenderingInfo();
        i1.setChartArea(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
        ChartRenderingInfo i2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(i1);
            out.close();

            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                    buffer.toByteArray()));
            i2 = (ChartRenderingInfo) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(i1, i2);

    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization2() {

        ChartRenderingInfo i1 = new ChartRenderingInfo();
        i1.getPlotInfo().setDataArea(new Rectangle2D.Double(1.0, 2.0, 3.0,
                4.0));
        ChartRenderingInfo i2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(i1);
            out.close();

            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                    buffer.toByteArray()));
            i2 = (ChartRenderingInfo) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(i1, i2);
        assertEquals(i2, i2.getPlotInfo().getOwner());

    }
}