jfreechart example source code file (IntervalXYDelegateTests.java)

This example jfreechart source code file (IntervalXYDelegateTests.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, clonenotsupportedexception, intervalxydelegate, intervalxydelegate, intervalxydelegatetests, io, objectinput, series, series, test, testcase, xyseries, xyseries, xyseriescollection, xyseriescollection

The jfreechart IntervalXYDelegateTests.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.]
 *
 * ----------------------------
 * IntervalXYDelegateTests.java
 * ----------------------------
 * (C) Copyright 2005-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 21-Feb-2005 : Version 1 (DG);
 * 06-Oct-2005 : Updated for testEquals() for method name change (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.IntervalXYDelegate;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;

/**
 * Some checks for the {@link IntervalXYDelegate} class.
 */
public class IntervalXYDelegateTests extends TestCase {

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

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

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
       XYSeries s1 = new XYSeries("Series");
       s1.add(1.2, 3.4);
       XYSeriesCollection c1 = new XYSeriesCollection();
       c1.addSeries(s1);
       IntervalXYDelegate d1 = new IntervalXYDelegate(c1);

       XYSeries s2 = new XYSeries("Series");
       XYSeriesCollection c2 = new XYSeriesCollection();
       s2.add(1.2, 3.4);
       c2.addSeries(s2);
       IntervalXYDelegate d2 = new IntervalXYDelegate(c2);

       assertTrue(d1.equals(d2));
       assertTrue(d2.equals(d1));

       d1.setAutoWidth(false);
       assertFalse(d1.equals(d2));
       d2.setAutoWidth(false);
       assertTrue(d1.equals(d2));

       d1.setIntervalPositionFactor(0.123);
       assertFalse(d1.equals(d2));
       d2.setIntervalPositionFactor(0.123);
       assertTrue(d1.equals(d2));

       d1.setFixedIntervalWidth(1.23);
       assertFalse(d1.equals(d2));
       d2.setFixedIntervalWidth(1.23);
       assertTrue(d1.equals(d2));
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        XYSeries s1 = new XYSeries("Series");
        s1.add(1.2, 3.4);
        XYSeriesCollection c1 = new XYSeriesCollection();
        c1.addSeries(s1);
        IntervalXYDelegate d1 = new IntervalXYDelegate(c1);

        IntervalXYDelegate d2 = null;
        try {
            d2 = (IntervalXYDelegate) d1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("Failed to clone.");
        }
        assertTrue(d1 != d2);
        assertTrue(d1.getClass() == d2.getClass());
        assertTrue(d1.equals(d2));
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        XYSeries s1 = new XYSeries("Series");
        s1.add(1.2, 3.4);
        XYSeriesCollection c1 = new XYSeriesCollection();
        c1.addSeries(s1);
        IntervalXYDelegate d1 = new IntervalXYDelegate(c1);
        IntervalXYDelegate 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 = (IntervalXYDelegate) in.readObject();
            in.close();
        }
        catch (Exception e) {
            System.out.println(e.toString());
        }
        assertEquals(d1, d2);

    }

}