jfreechart example source code file (StandardXYToolTipGeneratorTests.java)

This example jfreechart source code file (StandardXYToolTipGeneratorTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - jfreechart tags/keywords

bytearrayoutputstream, clonenotsupportedexception, dateformat, dateformat, decimalformat, decimalformat, io, numberformat, numberformat, objectinput, simpledateformat, standardxytooltipgenerator, standardxytooltipgenerator, standardxytooltipgeneratortests, string, text

The jfreechart StandardXYToolTipGeneratorTests.java source code

/* ===========================================================
 * 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.]
 *
 * ------------------------------------
 * StandardXYToolTipGeneratorTests.java
 * ------------------------------------
 * (C) Copyright 2004-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 11-May-2004 : Version 1 (DG);
 * 23-Apr-2008 : Added testPublicCloneable() (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;
import org.jfree.util.PublicCloneable;

/**
 * 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));

    }

    /**
     * Simple check that hashCode is implemented.
     */
    public void testHashCode() {
        StandardXYToolTipGenerator g1
                = new StandardXYToolTipGenerator();
        StandardXYToolTipGenerator g2
                = new StandardXYToolTipGenerator();
        assertTrue(g1.equals(g2));
        assertTrue(g1.hashCode() == g2.hashCode());
    }

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

    /**
     * Check to ensure that this class implements PublicCloneable.
     */
    public void testPublicCloneable() {
        StandardXYToolTipGenerator g1 = new StandardXYToolTipGenerator();
        assertTrue(g1 instanceof PublicCloneable);
    }

    /**
     * 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) {
            e.printStackTrace();
        }
        assertEquals(g1, g2);

    }

}