jfreechart example source code file (CustomXYURLGeneratorTests.java)

This example jfreechart source code file (CustomXYURLGeneratorTests.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

a1, a2, a3, a3, bytearrayoutputstream, clonenotsupportedexception, customxyurlgenerator, customxyurlgenerator, customxyurlgeneratortests, io, list, list, url, url, url1, util

The jfreechart CustomXYURLGeneratorTests.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.]
 *
 * ------------------------------
 * CustomXYURLGeneratorTests.java
 * ------------------------------
 * (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 21-Mar-2003 : Version 1 (DG);
 * 11-Apr-2008 : Added testCloning() and testEquals() (DG);
 * 21-Apr-2008 : Enhanced testCloning() (DG);
 * 23-Apr-2008 : Added testPublicCloneable (DG);
 *
 */

package org.jfree.chart.urls.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.util.List;

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

import org.jfree.chart.urls.CustomXYURLGenerator;
import org.jfree.util.PublicCloneable;

/**
 * Tests for the {@link CustomXYURLGenerator} class.
 */
public class CustomXYURLGeneratorTests extends TestCase {

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

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

    /**
     * Some checks for the equals() method.
     */
    public void testEquals() {
        CustomXYURLGenerator g1 = new CustomXYURLGenerator();
        CustomXYURLGenerator g2 = new CustomXYURLGenerator();
        assertTrue(g1.equals(g2));
        List u1 = new java.util.ArrayList();
        u1.add("URL A1");
        u1.add("URL A2");
        u1.add("URL A3");
        g1.addURLSeries(u1);
        assertFalse(g1.equals(g2));
        List u2 = new java.util.ArrayList();
        u2.add("URL A1");
        u2.add("URL A2");
        u2.add("URL A3");
        g2.addURLSeries(u2);
        assertTrue(g1.equals(g2));
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        CustomXYURLGenerator g1 = new CustomXYURLGenerator();
        List u1 = new java.util.ArrayList();
        u1.add("URL A1");
        u1.add("URL A2");
        u1.add("URL A3");
        g1.addURLSeries(u1);
        CustomXYURLGenerator g2 = null;
        try {
            g2 = (CustomXYURLGenerator) g1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(g1 != g2);
        assertTrue(g1.getClass() == g2.getClass());
        assertTrue(g1.equals(g2));

        // check independence
        List u2 = new java.util.ArrayList();
        u2.add("URL XXX");
        g1.addURLSeries(u2);
        assertFalse(g1.equals(g2));
        g2.addURLSeries(new java.util.ArrayList(u2));
        assertTrue(g1.equals(g2));
    }

    /**
     * Checks that the class implements PublicCloneable.
     */
    public void testPublicCloneable() {
        CustomXYURLGenerator g1 = new CustomXYURLGenerator();
        assertTrue(g1 instanceof PublicCloneable);
    }

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

        List u1 = new java.util.ArrayList();
        u1.add("URL A1");
        u1.add("URL A2");
        u1.add("URL A3");

        List u2 = new java.util.ArrayList();
        u2.add("URL B1");
        u2.add("URL B2");
        u2.add("URL B3");

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

        g1.addURLSeries(u1);
        g1.addURLSeries(u2);

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

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            g2 = (CustomXYURLGenerator) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(g1, g2);

    }

    /**
     * Some checks for the addURLSeries() method.
     */
    public void testAddURLSeries() {
        CustomXYURLGenerator g1 = new CustomXYURLGenerator();
        // you can add a null list - it would have been better if this
        // required EMPTY_LIST
        g1.addURLSeries(null);
        assertEquals(1, g1.getListCount());
        assertEquals(0, g1.getURLCount(0));

        List list1 = new java.util.ArrayList();
        list1.add("URL1");
        g1.addURLSeries(list1);
        assertEquals(2, g1.getListCount());
        assertEquals(0, g1.getURLCount(0));
        assertEquals(1, g1.getURLCount(1));
        assertEquals("URL1", g1.getURL(1, 0));

        // if we modify the original list, it's best if the URL generator is
        // not affected
        list1.clear();
        assertEquals("URL1", g1.getURL(1, 0));
    }

}