# LegendItemCollectionTests.java

    /* ===========================================================
     * 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.]
     *
     * ------------------------------
     * LegendItemCollectionTests.java
     * ------------------------------
     * (C) Copyright 2005-2008, by Object Refinery Limited and Contributors.
     *
     * Original Author:  David Gilbert (for Object Refinery Limited);
     * Contributor(s):   -;
     *
     * Changes
     * -------
     * 18-Apr-2005 : Version 1 (DG);
     * 23-Apr-2008 : Extended testCloning() (DG);
     *
     */

    package org.jfree.chart.junit;

    import java.awt.BasicStroke;
    import java.awt.Color;
    import java.awt.geom.Line2D;
    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.LegendItem;
    import org.jfree.chart.LegendItemCollection;

    /**
     * Tests for the {@link LegendItemCollection} class.
     */
    public class LegendItemCollectionTests extends TestCase {

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

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

        /**
         * Confirm that the equals method can distinguish all the required fields.
         */
        public void testEquals() {

            LegendItemCollection c1 = new LegendItemCollection();
            LegendItemCollection c2 = new LegendItemCollection();
            assertTrue(c1.equals(c2));
            assertTrue(c2.equals(c1));

            LegendItem item1 = new LegendItem("Label", "Description",
                    "ToolTip", "URL", true,
                    new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0), true, Color.red,
                    true, Color.blue, new BasicStroke(1.2f), true,
                    new Line2D.Double(1.0, 2.0, 3.0, 4.0),
                    new BasicStroke(2.1f), Color.green);
            LegendItem item2 = new LegendItem("Label", "Description",
                    "ToolTip", "URL", true,
                    new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0),
                    true, Color.red, true, Color.blue, new BasicStroke(1.2f), true,
                    new Line2D.Double(1.0, 2.0, 3.0, 4.0), new BasicStroke(2.1f),
                    Color.green);
            c1.add(item1);
            c2.add(item2);
            assertTrue(c1.equals(c2));

        }

        /**
         * Serialize an instance, restore it, and check for equality.
         */
        public void testSerialization() {
            LegendItemCollection c1 = new LegendItemCollection();
            c1.add(new LegendItem("Item", "Description", "ToolTip", "URL",
                    new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0), Color.red));
            LegendItemCollection c2 = null;
            try {
                ByteArrayOutputStream buffer = new ByteArrayOutputStream();
                ObjectOutput out = new ObjectOutputStream(buffer);
                out.writeObject(c1);
                out.close();

                ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                        buffer.toByteArray()));
                c2 = (LegendItemCollection) in.readObject();
                in.close();
            }
            catch (Exception e) {
                e.printStackTrace();
            }
            assertEquals(c1, c2);
        }

        /**
         * Confirm that cloning works.
         */
        public void testCloning() {
            LegendItemCollection c1 = new LegendItemCollection();
            LegendItem item1 = new LegendItem("Item 1");
            c1.add(item1);
            LegendItemCollection c2 = null;
            try {
                c2 = (LegendItemCollection) c1.clone();
            }
            catch (CloneNotSupportedException e) {
                e.printStackTrace();
            }
            assertTrue(c1 != c2);
            assertTrue(c1.getClass() == c2.getClass());
            assertTrue(c1.equals(c2));

            Rectangle2D item1Shape = (Rectangle2D) item1.getShape();
            item1Shape.setRect(1.0, 2.0, 3.0, 4.0);
            assertFalse(c1.equals(c2));
        }

    }