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File org.jfree.chart.axis.junit.DateTickMarkPositionTests.java

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/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2005, 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.]
 *
 * ------------------------------
 * DateTickMarkPositionTests.java
 * ------------------------------
 * (C) Copyright 2004, 2005, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: DateTickMarkPositionTests.java,v 1.3.2.1 2005/10/25 20:38:51 mungady Exp $
 *
 * Changes
 * -------
 * 19-May-2004 : Version 1 (DG);
 *
 */


package org.jfree.chart.axis.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.axis.DateTickMarkPosition;

/**
 * Tests for the {@link DateTickMarkPosition} class.
 */

public class DateTickMarkPositionTests extends TestCase {

    /**
     * Returns the tests as a test suite.
     *
     * @return The test suite.
     */

    public static Test suite() {
        return new TestSuite(DateTickMarkPositionTests.class);
    }

    /**
     * Constructs a new set of tests.
     *
     * @param name  the name of the tests.
     */

    public DateTickMarkPositionTests(String name) {
        super(name);
    }
    
    /**
     * Test equals() method.
     */

    public void testEquals() {
        assertEquals(DateTickMarkPosition.START, DateTickMarkPosition.START);
        assertEquals(DateTickMarkPosition.MIDDLE, DateTickMarkPosition.MIDDLE);
        assertEquals(DateTickMarkPosition.END, DateTickMarkPosition.END);
        assertFalse(DateTickMarkPosition.START.equals(null));
        assertFalse(
            DateTickMarkPosition.START.equals(DateTickMarkPosition.END)
        );
        assertFalse(
            DateTickMarkPosition.MIDDLE.equals(DateTickMarkPosition.END)
        );
    }
    
    /**
     * Two objects that are equal are required to return the same hashCode. 
     */

    public void testHashCode() {
        DateTickMarkPosition a1 = DateTickMarkPosition.END;
        DateTickMarkPosition a2 = DateTickMarkPosition.END;
        assertTrue(a1.equals(a2));
        int h1 = a1.hashCode();
        int h2 = a2.hashCode();
        assertEquals(h1, h2);
    }
        
    /**
     * Serialize an instance, restore it, and check for equality.
     */

    public void testSerialization() {
        DateTickMarkPosition p1 = DateTickMarkPosition.MIDDLE;
        DateTickMarkPosition p2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(p1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                new ByteArrayInputStream(buffer.toByteArray())
            );
            p2 = (DateTickMarkPosition) in.readObject();
            in.close();
        }
        catch (Exception e) {
            System.out.println(e.toString());
        }
        assertEquals(p1, p2);
        assertTrue(p1 == p2);        
    }

}

File Information:

file name:DateTickMarkPositionTests.java
package:org.jfree.chart.axis.junit
qualified name:org.jfree.chart.axis.junit.DateTickMarkPositionTests.java
file type:Java Source File
download location:download http://dgpf.sourceforge.net/source/org/jfree/chart/axis/junit/DateTickMarkPositionTests.java
size:4.353 KB (4458 B)
uploaded: 2012-05-02 03:11:07 GMT+0000
last update: 2006-08-25 12:16:44 GMT+0000
last access: 2012-11-24 10:22:22 GMT+0000

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