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

 * 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.]

 *

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

 * StackedXYBarRendererTests.java

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

 * (C) Copyright 2004, by Object Refinery Limited and Contributors.

 *

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

 * Contributor(s):   -;

 *

 * $Id: StackedXYBarRendererTests.java,v 1.1 2004/09/10 13:45:34 mungady Exp $

 *

 * Changes

 * -------

 * 10-Sep-2004 : Version 1 (DG);

 *

 */



package org.jfree.chart.renderer.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.chart.renderer.xy.StackedXYBarRenderer;



/**

 * Tests for the {@link StackedXYBarRenderer} class.

 */

public class StackedXYBarRendererTests extends TestCase {



    /**

     * Returns the tests as a test suite.

     *

     * @return The test suite.

     */

    public static Test suite() {

        return new TestSuite(StackedXYBarRendererTests.class);

    }



    /**

     * Constructs a new set of tests.

     *

     * @param name  the name of the tests.

     */

    public StackedXYBarRendererTests(String name) {

        super(name);

    }



    /**

     * Test that the equals() method distinguishes all fields.

     */

    public void testEquals() {

        // default instances

        StackedXYBarRenderer r1 = new StackedXYBarRenderer();

        StackedXYBarRenderer r2 = new StackedXYBarRenderer();

        assertTrue(r1.equals(r2));

        assertTrue(r2.equals(r1));

        

    }



    /**

     * Two objects that are equal are required to return the same hashCode. 

     */

    public void testHashcode() {

        StackedXYBarRenderer r1 = new StackedXYBarRenderer();

        StackedXYBarRenderer r2 = new StackedXYBarRenderer();

        assertTrue(r1.equals(r2));

        int h1 = r1.hashCode();

        int h2 = r2.hashCode();

        assertEquals(h1, h2);

    }

    

    /**

     * Confirm that cloning works.

     */

    public void testCloning() {

        StackedXYBarRenderer r1 = new StackedXYBarRenderer();

        StackedXYBarRenderer r2 = null;

        try {

            r2 = (StackedXYBarRenderer) r1.clone();

        }

        catch (CloneNotSupportedException e) {

            System.err.println("Failed to clone.");

        }

        assertTrue(r1 != r2);

        assertTrue(r1.getClass() == r2.getClass());

        assertTrue(r1.equals(r2));

    }



    /**

     * Serialize an instance, restore it, and check for equality.

     */

    public void testSerialization() {



        StackedXYBarRenderer r1 = new StackedXYBarRenderer();

        StackedXYBarRenderer r2 = null;



        try {

            ByteArrayOutputStream buffer = new ByteArrayOutputStream();

            ObjectOutput out = new ObjectOutputStream(buffer);

            out.writeObject(r1);

            out.close();



            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));

            r2 = (StackedXYBarRenderer) in.readObject();

            in.close();

        }

        catch (Exception e) {

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

        }

        assertEquals(r1, r2);



    }



}

