jfreechart example source code file (PolarPlotTests.java)

This example jfreechart source code file (PolarPlotTests.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

abc, awt, bytearrayoutputstream, clonenotsupportedexception, font, io, numberaxis, numberaxis, polarplot, polarplot, polarplottests, serif, test, test, xyz, xyz

The jfreechart PolarPlotTests.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.]
 *
 * -------------------
 * PolarPlotTests.java
 * -------------------
 * (C) Copyright 2005-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 23-Feb-2005 : Version 1 (DG);
 * 08-Jun-2005 : Extended testEquals() (DG);
 * 07-Feb-2007 : Extended testEquals() and testCloning() (DG);
 * 17-Feb-2008 : Tests for new angleTickUnit field (DG);
 *
 */

package org.jfree.chart.plot.junit;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
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.NumberAxis;
import org.jfree.chart.axis.NumberTickUnit;
import org.jfree.chart.plot.PolarPlot;
import org.jfree.chart.renderer.DefaultPolarItemRenderer;
import org.jfree.data.xy.DefaultXYDataset;

/**
 * Some tests for the {@link PolarPlot} class.
 */
public class PolarPlotTests extends TestCase {

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

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

    /**
     * Some checks for the equals() method.
     */
    public void testEquals() {
        PolarPlot plot1 = new PolarPlot();
        PolarPlot plot2 = new PolarPlot();
        assertTrue(plot1.equals(plot2));
        assertTrue(plot2.equals(plot1));

        plot1.setAngleGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.red,
                3.0f, 4.0f, Color.blue));
        assertFalse(plot1.equals(plot2));
        plot2.setAngleGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.red,
                3.0f, 4.0f, Color.blue));
        assertTrue(plot1.equals(plot2));

        Stroke s = new BasicStroke(1.23f);
        plot1.setAngleGridlineStroke(s);
        assertFalse(plot1.equals(plot2));
        plot2.setAngleGridlineStroke(s);
        assertTrue(plot1.equals(plot2));

        plot1.setAngleTickUnit(new NumberTickUnit(11.0));
        assertFalse(plot1.equals(plot2));
        plot2.setAngleTickUnit(new NumberTickUnit(11.0));
        assertTrue(plot1.equals(plot2));

        plot1.setAngleGridlinesVisible(false);
        assertFalse(plot1.equals(plot2));
        plot2.setAngleGridlinesVisible(false);
        assertTrue(plot1.equals(plot2));

        plot1.setAngleLabelFont(new Font("Serif", Font.PLAIN, 9));
        assertFalse(plot1.equals(plot2));
        plot2.setAngleLabelFont(new Font("Serif", Font.PLAIN, 9));
        assertTrue(plot1.equals(plot2));

        plot1.setAngleLabelPaint(new GradientPaint(9.0f, 8.0f, Color.blue,
                7.0f, 6.0f, Color.red));
        assertFalse(plot1.equals(plot2));
        plot2.setAngleLabelPaint(new GradientPaint(9.0f, 8.0f, Color.blue,
                7.0f, 6.0f, Color.red));
        assertTrue(plot1.equals(plot2));

        plot1.setAngleLabelsVisible(false);
        assertFalse(plot1.equals(plot2));
        plot2.setAngleLabelsVisible(false);
        assertTrue(plot1.equals(plot2));

        plot1.setAxis(new NumberAxis("Test"));
        assertFalse(plot1.equals(plot2));
        plot2.setAxis(new NumberAxis("Test"));
        assertTrue(plot1.equals(plot2));

        plot1.setRadiusGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.white,
                3.0f, 4.0f, Color.black));
        assertFalse(plot1.equals(plot2));
        plot2.setRadiusGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.white,
                3.0f, 4.0f, Color.black));
        assertTrue(plot1.equals(plot2));

        plot1.setRadiusGridlineStroke(s);
        assertFalse(plot1.equals(plot2));
        plot2.setRadiusGridlineStroke(s);
        assertTrue(plot1.equals(plot2));

        plot1.setRadiusGridlinesVisible(false);
        assertFalse(plot1.equals(plot2));
        plot2.setRadiusGridlinesVisible(false);
        assertTrue(plot1.equals(plot2));

        plot1.addCornerTextItem("XYZ");
        assertFalse(plot1.equals(plot2));
        plot2.addCornerTextItem("XYZ");
        assertTrue(plot1.equals(plot2));
    }

    /**
     * Some basic checks for the clone() method.
     */
    public void testCloning() {
        PolarPlot p1 = new PolarPlot();
        PolarPlot p2 = null;
        try {
            p2 = (PolarPlot) p1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(p1 != p2);
        assertTrue(p1.getClass() == p2.getClass());
        assertTrue(p1.equals(p2));

        // check independence
        p1.addCornerTextItem("XYZ");
        assertFalse(p1.equals(p2));
        p2.addCornerTextItem("XYZ");
        assertTrue(p1.equals(p2));

        p1 = new PolarPlot(new DefaultXYDataset(), new NumberAxis("A1"),
                new DefaultPolarItemRenderer());
        p2 = null;
        try {
            p2 = (PolarPlot) p1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
            System.err.println("Failed to clone.");
        }
        assertTrue(p1 != p2);
        assertTrue(p1.getClass() == p2.getClass());
        assertTrue(p1.equals(p2));

        // check independence
        p1.getAxis().setLabel("ABC");
        assertFalse(p1.equals(p2));
        p2.getAxis().setLabel("ABC");
        assertTrue(p1.equals(p2));

    }

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

        PolarPlot p1 = new PolarPlot();
        p1.setAngleGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
                4.0f, Color.blue));
        p1.setAngleLabelPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
                4.0f, Color.blue));
        p1.setRadiusGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
                4.0f, Color.blue));
        PolarPlot p2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(p1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            p2 = (PolarPlot) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(p1, p2);

    }

}