jfreechart example source code file (ThermometerPlotTests.java)

This example jfreechart source code file (ThermometerPlotTests.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, bytearrayoutputstream, bytearrayoutputstream, decimalformat, exception, font, io, objectinput, objectinputstream, objectoutput, objectoutputstream, serif, serif, text, thermometerplot, thermometerplot, thermometerplottests

The jfreechart ThermometerPlotTests.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.]
 *
 * -------------------------
 * ThermometerPlotTests.java
 * -------------------------
 * (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 26-Mar-2003 : Version 1 (DG);
 * 30-Apr-2007 : Added new serialization test (DG);
 * 03-May-2007 : Added cloning test (DG);
 * 08-Oct-2007 : Updated testEquals() for new fields (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.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.DecimalFormat;

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

import org.jfree.chart.plot.ThermometerPlot;
import org.jfree.ui.RectangleInsets;

/**
 * Tests for the {@link ThermometerPlot} class.
 */
public class ThermometerPlotTests extends TestCase {

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

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

    /**
     * Some checks for the equals() method.
     */
    public void testEquals() {
        ThermometerPlot p1 = new ThermometerPlot();
        ThermometerPlot p2 = new ThermometerPlot();
        assertTrue(p1.equals(p2));
        assertTrue(p2.equals(p1));

        // padding
        p1.setPadding(new RectangleInsets(1.0, 2.0, 3.0, 4.0));
        assertFalse(p1.equals(p2));
        p2.setPadding(new RectangleInsets(1.0, 2.0, 3.0, 4.0));
        assertTrue(p2.equals(p1));

        // thermometerStroke
        BasicStroke s = new BasicStroke(1.23f);
        p1.setThermometerStroke(s);
        assertFalse(p1.equals(p2));
        p2.setThermometerStroke(s);
        assertTrue(p2.equals(p1));

        // thermometerPaint
        p1.setThermometerPaint(new GradientPaint(1.0f, 2.0f, Color.blue,
                3.0f, 4.0f, Color.red));
        assertFalse(p1.equals(p2));
        p2.setThermometerPaint(new GradientPaint(1.0f, 2.0f, Color.blue,
                3.0f, 4.0f, Color.red));
        assertTrue(p2.equals(p1));

        // units
        p1.setUnits(ThermometerPlot.UNITS_KELVIN);
        assertFalse(p1.equals(p2));
        p2.setUnits(ThermometerPlot.UNITS_KELVIN);
        assertTrue(p2.equals(p1));

        // valueLocation
        p1.setValueLocation(ThermometerPlot.LEFT);
        assertFalse(p1.equals(p2));
        p2.setValueLocation(ThermometerPlot.LEFT);
        assertTrue(p2.equals(p1));

        // axisLocation
        p1.setAxisLocation(ThermometerPlot.RIGHT);
        assertFalse(p1.equals(p2));
        p2.setAxisLocation(ThermometerPlot.RIGHT);
        assertTrue(p2.equals(p1));

        // valueFont
        p1.setValueFont(new Font("Serif", Font.PLAIN, 9));
        assertFalse(p1.equals(p2));
        p2.setValueFont(new Font("Serif", Font.PLAIN, 9));
        assertTrue(p2.equals(p1));

        // valuePaint
        p1.setValuePaint(new GradientPaint(4.0f, 5.0f, Color.red,
                6.0f, 7.0f, Color.white));
        assertFalse(p1.equals(p2));
        p2.setValuePaint(new GradientPaint(4.0f, 5.0f, Color.red,
                6.0f, 7.0f, Color.white));
        assertTrue(p2.equals(p1));

        // valueFormat
        p1.setValueFormat(new DecimalFormat("0.0000"));
        assertFalse(p1.equals(p2));
        p2.setValueFormat(new DecimalFormat("0.0000"));
        assertTrue(p2.equals(p1));

        // mercuryPaint
        p1.setMercuryPaint(new GradientPaint(9.0f, 8.0f, Color.red,
                7.0f, 6.0f, Color.blue));
        assertFalse(p1.equals(p2));
        p2.setMercuryPaint(new GradientPaint(9.0f, 8.0f, Color.red,
                7.0f, 6.0f, Color.blue));
        assertTrue(p2.equals(p1));

        // showValueLines
        p1.setShowValueLines(true);
        assertFalse(p1.equals(p2));
        p2.setShowValueLines(true);
        assertTrue(p2.equals(p1));

        p1.setSubrange(1, 1.0, 2.0);
        assertFalse(p1.equals(p2));
        p2.setSubrange(1, 1.0, 2.0);
        assertTrue(p2.equals(p1));

        p1.setSubrangePaint(1, new GradientPaint(1.0f, 2.0f, Color.red,
                3.0f, 4.0f, Color.yellow));
        assertFalse(p1.equals(p2));
        p2.setSubrangePaint(1, new GradientPaint(1.0f, 2.0f, Color.red,
                3.0f, 4.0f, Color.yellow));
        assertTrue(p2.equals(p1));

        p1.setBulbRadius(9);
        assertFalse(p1.equals(p2));
        p2.setBulbRadius(9);
        assertTrue(p2.equals(p1));

        p1.setColumnRadius(8);
        assertFalse(p1.equals(p2));
        p2.setColumnRadius(8);
        assertTrue(p2.equals(p1));

        p1.setGap(7);
        assertFalse(p1.equals(p2));
        p2.setGap(7);
        assertTrue(p2.equals(p1));
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        ThermometerPlot p1 = new ThermometerPlot();
        ThermometerPlot p2 = null;
        try {
            p2 = (ThermometerPlot) p1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(p1 != p2);
        assertTrue(p1.getClass() == p2.getClass());
        assertTrue(p1.equals(p2));
    }

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

        ThermometerPlot p1 = new ThermometerPlot();
        ThermometerPlot 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 = (ThermometerPlot) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertTrue(p1.equals(p2));

    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization2() {
        ThermometerPlot p1 = new ThermometerPlot();
        p1.setSubrangePaint(1, new GradientPaint(1.0f, 2.0f, Color.red, 3.0f,
                4.0f, Color.blue));
        ThermometerPlot 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 = (ThermometerPlot) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertTrue(p1.equals(p2));
    }

    /**
     * Some checks for the setUnits() method.
     */
    public void testSetUnits() {
        ThermometerPlot p1 = new ThermometerPlot();
        assertEquals(ThermometerPlot.UNITS_CELCIUS, p1.getUnits());
        p1.setUnits("FAHRENHEIT");  // this doesn't work
        assertEquals(ThermometerPlot.UNITS_CELCIUS, p1.getUnits());
        p1.setUnits("\u00B0F");     // ...but this does!
        assertEquals(ThermometerPlot.UNITS_FAHRENHEIT, p1.getUnits());
    }
}