sortordertests.java

该源代码为一些通用的程序

/* ========================================================================
 * JCommon : a free general purpose class library for the Java(tm) platform
 * ========================================================================
 *
 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
 * 
 * Project Info:  http://www.jfree.org/jcommon/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.]
 * 
 * -------------------
 * SortOrderTests.java
 * -------------------
 * (C) Copyright 2004, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: SortOrderTests.java,v 1.2 2005/10/18 13:25:14 mungady Exp $
 *
 * Changes
 * -------
 * 08-Jan-2004 : Version 1 (DG);
 *
 */

package org.jfree.util.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.util.SortOrder;

/**
 * Tests for the {@link SortOrder} class.
 */
public class SortOrderTests extends TestCase {

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

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

    /**
     * Tests the equals() method.
     */
    public void testEquals() {
        assertTrue(SortOrder.ASCENDING.equals(SortOrder.ASCENDING));
        assertTrue(SortOrder.DESCENDING.equals(SortOrder.DESCENDING));
    }
    
    /**
     * Serialize an instance, restore it, and check for identity.
     */
    public void testSerialization() {

        final SortOrder o1 = SortOrder.ASCENDING;
        SortOrder o2 = null;

        try {
            final ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            final ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(o1);
            out.close();

            final ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
            o2 = (SortOrder) in.readObject();
            in.close();
        }
        catch (Exception e) {
            System.out.println(e.toString());
        }
        assertTrue(o1 == o2); 

    }

}