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

 * 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.]

 *

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

 * SimpleTimePeriodTests.java

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

 * (C) Copyright 2003 by Object Refinery Limited.

 *

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

 * Contributor(s):   -;

 *

 * $Id: SimpleTimePeriodTests.java,v 1.1 2004/08/31 15:34:54 mungady Exp $

 *

 * Changes

 * -------

 * 13-Mar-2003 : Version 1 (DG);

 * 21-Oct-2003 : Added hashCode() test (DG);

 *

 */



package org.jfree.data.time.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 java.util.Date;



import junit.framework.Test;

import junit.framework.TestCase;

import junit.framework.TestSuite;



import org.jfree.data.time.SimpleTimePeriod;



/**

 * Tests for the {@link SimpleTimePeriod} class.

 */

public class SimpleTimePeriodTests extends TestCase {



    /**

     * Returns the tests as a test suite.

     *

     * @return The test suite.

     */

    public static Test suite() {

        return new TestSuite(SimpleTimePeriodTests.class);

    }



    /**

     * Constructs a new set of tests.

     *

     * @param name  the name of the tests.

     */

    public SimpleTimePeriodTests(final String name) {

        super(name);

    }



    /**

     * Common test setup.

     */

    protected void setUp() {

        // no setup

    }



    /**

     * Problem that an instance is equal to itself.

     *

     * SourceForge Bug ID: 558850.

     */

    public void testEqualsSelf() {

        final SimpleTimePeriod p = new SimpleTimePeriod(new Date(1000L), new Date(1001L));

        assertTrue(p.equals(p));

    }



    /**

     * Test the equals() method.

     */

    public void testEquals() {

        final SimpleTimePeriod p1 = new SimpleTimePeriod(new Date(1000L), new Date(1001L));

        final SimpleTimePeriod p2 = new SimpleTimePeriod(new Date(1000L), new Date(1001L));

        assertTrue(p1.equals(p2));

        assertTrue(p2.equals(p1));

    }



    /**

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

     */

    public void testSerialization() {



        final SimpleTimePeriod p1 = new SimpleTimePeriod(new Date(1000L), new Date(1001L));

        SimpleTimePeriod p2 = null;



        try {

            final ByteArrayOutputStream buffer = new ByteArrayOutputStream();

            final ObjectOutput out = new ObjectOutputStream(buffer);

            out.writeObject(p1);

            out.close();



            final ObjectInput in = new ObjectInputStream(

                new ByteArrayInputStream(buffer.toByteArray())

            );

            p2 = (SimpleTimePeriod) in.readObject();

            in.close();

        }

        catch (Exception e) {

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

        }

        assertEquals(p1, p2);



    }

    

    /**

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

     */

    public void testHashcode() {

        final SimpleTimePeriod s1 = new SimpleTimePeriod(new Date(10L), new Date(20L));

        final SimpleTimePeriod s2 = new SimpleTimePeriod(new Date(10L), new Date(20L));

        assertTrue(s1.equals(s2));

        final int h1 = s1.hashCode();

        final int h2 = s2.hashCode();

        assertEquals(h1, h2);

    }



}

