/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2007, 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 2004-2007, 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());

    }
}
