standardxytooltipgeneratortests.java

jfreechart1.0.1 jsp绘制图表的开发包

/* ===========================================================
 * 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.]
 *
 * ------------------------------------
 * StandardXYToolTipGeneratorTests.java
 * ------------------------------------
 * (C) Copyright 2004, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: StandardXYToolTipGeneratorTests.java,v 1.2.2.1 2005/10/25 20:49:19 mungady Exp $
 *
 * Changes
 * -------
 * 11-May-2004 : Version 1 (DG);
 *
 */

package org.jfree.chart.labels.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.text.DateFormat;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.jfree.chart.labels.StandardXYToolTipGenerator;

/**
 * Tests for the {@link StandardXYToolTipGenerator} class.
 */
public class StandardXYToolTipGeneratorTests extends TestCase {

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

    /**
     * Constructs a new set of tests.
     *
     * @param name  the name of the tests.
     */
    public StandardXYToolTipGeneratorTests(String name) {
        super(name);
    }
    
    /**
     * Tests the equals() method.
     */
    public void testEquals() {
        
        // some setup...        
        String f1 = "{1}";
        String f2 = "{2}";
        NumberFormat xnf1 = new DecimalFormat("0.00");
        NumberFormat xnf2 = new DecimalFormat("0.000");
        NumberFormat ynf1 = new DecimalFormat("0.00");
        NumberFormat ynf2 = new DecimalFormat("0.000");

        StandardXYToolTipGenerator g1 = null;
        StandardXYToolTipGenerator g2 = null;
        
        g1 = new StandardXYToolTipGenerator(f1, xnf1, ynf1);
        g2 = new StandardXYToolTipGenerator(f1, xnf1, ynf1);
        assertTrue(g1.equals(g2));
        assertTrue(g2.equals(g1));
        
        g1 = new StandardXYToolTipGenerator(f2, xnf1, ynf1);
        assertFalse(g1.equals(g2));
        g2 = new StandardXYToolTipGenerator(f2, xnf1, ynf1);
        assertTrue(g1.equals(g2));
                
        g1 = new StandardXYToolTipGenerator(f2, xnf2, ynf1);
        assertFalse(g1.equals(g2));
        g2 = new StandardXYToolTipGenerator(f2, xnf2, ynf1);
        assertTrue(g1.equals(g2));

        g1 = new StandardXYToolTipGenerator(f2, xnf2, ynf2);
        assertFalse(g1.equals(g2));
        g2 = new StandardXYToolTipGenerator(f2, xnf2, ynf2);
        assertTrue(g1.equals(g2));
                
        DateFormat xdf1 = new SimpleDateFormat("d-MMM");
        DateFormat xdf2 = new SimpleDateFormat("d-MMM-yyyy");
        DateFormat ydf1 = new SimpleDateFormat("d-MMM");
        DateFormat ydf2 = new SimpleDateFormat("d-MMM-yyyy");

        g1 = new StandardXYToolTipGenerator(f1, xdf1, ydf1);
        g2 = new StandardXYToolTipGenerator(f1, xdf1, ydf1);
        assertTrue(g1.equals(g2));
        assertTrue(g2.equals(g1));
        
        g1 = new StandardXYToolTipGenerator(f1, xdf2, ydf1);
        assertFalse(g1.equals(g2));
        g2 = new StandardXYToolTipGenerator(f1, xdf2, ydf1);
        assertTrue(g1.equals(g2));
                
        g1 = new StandardXYToolTipGenerator(f1, xdf2, ydf2);
        assertFalse(g1.equals(g2));
        g2 = new StandardXYToolTipGenerator(f1, xdf2, ydf2);
        assertTrue(g1.equals(g2));

    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        StandardXYToolTipGenerator g1 = new StandardXYToolTipGenerator();
        StandardXYToolTipGenerator g2 = null;
        try {
            g2 = (StandardXYToolTipGenerator) g1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("Failed to clone.");
        }
        assertTrue(g1 != g2);
        assertTrue(g1.getClass() == g2.getClass());
        assertTrue(g1.equals(g2));
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {

        StandardXYToolTipGenerator g1 = new StandardXYToolTipGenerator();
        StandardXYToolTipGenerator g2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(g1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                new ByteArrayInputStream(buffer.toByteArray())
            );
            g2 = (StandardXYToolTipGenerator) in.readObject();
            in.close();
        }
        catch (Exception e) {
            System.out.println(e.toString());
        }
        assertEquals(g1, g2);

    }

}