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jfreechart example source code file (StandardCategoryToolTipGeneratorTests.java)

This example jfreechart source code file (StandardCategoryToolTipGeneratorTests.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, bytearrayoutputstream, clonenotsupportedexception, decimalformat, decimalformat, io, objectinput, simpledateformat, standardcategoryitemlabelgenerator, standardcategoryitemlabelgenerator, standardcategorytooltipgenerator, standardcategorytooltipgenerator, standardcategorytooltipgeneratortests, test, testcase, text

The jfreechart StandardCategoryToolTipGeneratorTests.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.]
 *
 * ------------------------------------------
 * StandardCategoryToolTipGeneratorTests.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);
 * ------------- JFREECHART 1.0.x ---------------------------------------------
 * 03-May-2006 : Added testEquals1481087() (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.SimpleDateFormat;

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

import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.labels.StandardCategoryToolTipGenerator;
import org.jfree.util.PublicCloneable;

/**
 * Tests for the {@link StandardCategoryToolTipGenerator} class.
 */
public class StandardCategoryToolTipGeneratorTests extends TestCase {

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

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

    /**
     * Tests the equals() method.
     */
    public void testEquals() {

        StandardCategoryToolTipGenerator g1
                = new StandardCategoryToolTipGenerator();
        StandardCategoryToolTipGenerator g2
                = new StandardCategoryToolTipGenerator();
        assertTrue(g1.equals(g2));
        assertTrue(g2.equals(g1));

        g1 = new StandardCategoryToolTipGenerator("{0}",
                new DecimalFormat("0.000"));
        assertFalse(g1.equals(g2));
        g2 = new StandardCategoryToolTipGenerator("{0}",
                new DecimalFormat("0.000"));
        assertTrue(g1.equals(g2));

        g1 = new StandardCategoryToolTipGenerator("{1}",
                new DecimalFormat("0.000"));
        assertFalse(g1.equals(g2));
        g2 = new StandardCategoryToolTipGenerator("{1}",
                new DecimalFormat("0.000"));
        assertTrue(g1.equals(g2));

        g1 = new StandardCategoryToolTipGenerator("{2}",
                new SimpleDateFormat("d-MMM"));
        assertFalse(g1.equals(g2));
        g2 = new StandardCategoryToolTipGenerator("{2}",
                new SimpleDateFormat("d-MMM"));
        assertTrue(g1.equals(g2));

    }

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

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        StandardCategoryToolTipGenerator g1
                = new StandardCategoryToolTipGenerator();
        StandardCategoryToolTipGenerator g2 = null;
        try {
            g2 = (StandardCategoryToolTipGenerator) 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() {
        StandardCategoryToolTipGenerator g1
                = new StandardCategoryToolTipGenerator();
        assertTrue(g1 instanceof PublicCloneable);
    }

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

        StandardCategoryToolTipGenerator g1
                = new StandardCategoryToolTipGenerator("{2}",
                DateFormat.getInstance());
        StandardCategoryToolTipGenerator 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 = (StandardCategoryToolTipGenerator) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(g1, g2);

    }

    /**
     * A test for bug 1481087.
     */
    public void testEquals1481087() {
        StandardCategoryToolTipGenerator g1
                = new StandardCategoryToolTipGenerator("{0}",
                new DecimalFormat("0.00"));
        StandardCategoryItemLabelGenerator g2
                = new StandardCategoryItemLabelGenerator("{0}",
                new DecimalFormat("0.00"));
        assertFalse(g1.equals(g2));
    }

}

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