jfreechart example source code file (CyclicNumberAxisTests.java)

This example jfreechart source code file (CyclicNumberAxisTests.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

awt, axis, bytearrayoutputstream, bytearrayoutputstream, clonenotsupportedexception, cyclicnumberaxis, cyclicnumberaxis, cyclicnumberaxistests, cyclicnumberaxistests, exception, io, objectinput, stroke, test, test, testcase

The jfreechart CyclicNumberAxisTests.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.]
 *
 * --------------------
 * CyclicAxisTests.java
 * --------------------
 * (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  Nicolas Brodu
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 19-Nov-2003 : First version (NB);
 * 05-Oct-2004 : Removed extension of NumberAxisTests (DG);
 * 07-Jan-2004 : Added test for hashCode() (DG);
 * 02-Feb-2007 : Removed author tags all over JFreeChart sources (DG);
 *
 */

package org.jfree.chart.axis.junit;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Stroke;
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.CyclicNumberAxis;

/**
 * Tests for the {@link CyclicNumberAxis} class.
 */
public class CyclicNumberAxisTests extends TestCase {

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

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

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        CyclicNumberAxis a1 = new CyclicNumberAxis(10, 0, "Test");
        CyclicNumberAxis a2 = null;
        try {
            a2 = (CyclicNumberAxis) a1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("Failed to clone.");
        }
        assertTrue(a1 != a2);
        assertTrue(a1.getClass() == a2.getClass());
        assertTrue(a1.equals(a2));
    }

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {

        CyclicNumberAxis a1 = new CyclicNumberAxis(10, 0, "Test");
        CyclicNumberAxis a2 = new CyclicNumberAxis(10, 0, "Test");
        assertTrue(a1.equals(a2));

        // period
        a1.setPeriod(5);
        assertFalse(a1.equals(a2));
        a2.setPeriod(5);
        assertTrue(a1.equals(a2));

        // offset
        a1.setOffset(2.0);
        assertFalse(a1.equals(a2));
        a2.setOffset(2.0);
        assertTrue(a1.equals(a2));

        // advance line Paint
        a1.setAdvanceLinePaint(new GradientPaint(1.0f, 2.0f, Color.red,
                3.0f, 4.0f, Color.black));
        assertFalse(a1.equals(a2));
        a2.setAdvanceLinePaint(new GradientPaint(1.0f, 2.0f, Color.red,
                3.0f, 4.0f, Color.black));
        assertTrue(a1.equals(a2));

        // advance line Stroke
        Stroke stroke = new BasicStroke(0.2f);
        a1.setAdvanceLineStroke(stroke);
        assertFalse(a1.equals(a2));
        a2.setAdvanceLineStroke(stroke);
        assertTrue(a1.equals(a2));

        // advance line Visible
        a1.setAdvanceLineVisible(!a1.isAdvanceLineVisible());
        assertFalse(a1.equals(a2));
        a2.setAdvanceLineVisible(a1.isAdvanceLineVisible());
        assertTrue(a1.equals(a2));

        // cycle bound mapping
        a1.setBoundMappedToLastCycle(!a1.isBoundMappedToLastCycle());
        assertFalse(a1.equals(a2));
        a2.setBoundMappedToLastCycle(a1.isBoundMappedToLastCycle());
        assertTrue(a1.equals(a2));

    }

    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashCode() {
        CyclicNumberAxis a1 = new CyclicNumberAxis(10, 0, "Test");
        CyclicNumberAxis a2 = new CyclicNumberAxis(10, 0, "Test");
        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() {

        CyclicNumberAxis a1 = new CyclicNumberAxis(10, 0, "Test Axis");
        CyclicNumberAxis a2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(a1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            a2 = (CyclicNumberAxis) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(a1, a2);

    }

}