/* ===========================================================

 * JFreeChart : a free chart library for the Java(tm) platform

 * ===========================================================

 *

 * (C) Copyright 2000-2004, 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., 59 Temple Place, Suite 330,

 * Boston, MA 02111-1307, USA.

 *

 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 

 * in the United States and other countries.]

 *

 * --------------------------

 * HistogramDatasetTests.java

 * --------------------------

 * (C) Copyright 2004 by Object Refinery Limited.

 *

 * Original Author:  David Gilbert (for Object Refinery Limited);

 * Contributor(s):   -;

 *

 * $Id: HistogramDatasetTests.java,v 1.1 2004/08/31 15:32:54 mungady Exp $

 *

 * Changes

 * -------

 * 01-Mar-2004 : Version 1 (DG);

 *

 */



package org.jfree.data.statistics.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.statistics.HistogramDataset;



/**

 * Tests for the {@link HistogramDataset} class.

 *

 */

public class HistogramDatasetTests extends TestCase {



    /**

     * Returns the tests as a test suite.

     *

     * @return the test suite.

     */

    public static Test suite() {

        return new TestSuite(HistogramDatasetTests.class);

    }



    /**

     * Constructs a new set of tests.

     *

     * @param  name the name of the tests.

     */

    public HistogramDatasetTests(final String name) {

        super(name);

    }



    /**

     * Confirm that the equals method can distinguish all the required fields.

     */

    public void testEquals() {

        

        final double[] values = {1.0, 2.0, 3.0, 4.0, 6.0, 12.0, 5.0, 6.3, 4.5};

        final HistogramDataset d1 = new HistogramDataset();

        d1.addSeries("Series 1", values, 5);

        final HistogramDataset d2 = new HistogramDataset();

        d2.addSeries("Series 1", values, 5);

        

        assertTrue(d1.equals(d2));

        assertTrue(d2.equals(d1));



    }



    /**

     * Confirm that cloning works.

     */

    public void testCloning() {

        final double[] values = {1.0, 2.0, 3.0, 4.0, 6.0, 12.0, 5.0, 6.3, 4.5};

        final HistogramDataset d1 = new HistogramDataset();

        d1.addSeries("Series 1", values, 5);

        HistogramDataset d2 = null;

        try {

            d2 = (HistogramDataset) 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() {



        final double[] values = {1.0, 2.0, 3.0, 4.0, 6.0, 12.0, 5.0, 6.3, 4.5};

        final HistogramDataset d1 = new HistogramDataset();

        d1.addSeries("Series 1", values, 5);

        HistogramDataset d2 = null;



        try {

            final ByteArrayOutputStream buffer = new ByteArrayOutputStream();

            final ObjectOutput out = new ObjectOutputStream(buffer);

            out.writeObject(d1);

            out.close();



            final ObjectInput in = new ObjectInputStream(

                new ByteArrayInputStream(buffer.toByteArray())

            );

            d2 = (HistogramDataset) in.readObject();

            in.close();

        }

        catch (Exception e) {

            System.out.println(e.toString());

        }

        assertEquals(d1, d2);



    }



}

