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jfreechart example source code file (DefaultBoxAndWhiskerCategoryDatasetTests.java)

This example jfreechart source code file (DefaultBoxAndWhiskerCategoryDatasetTests.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

arraylist, boxandwhiskeritem, c1, c1, column1, defaultboxandwhiskercategorydataset, defaultboxandwhiskercategorydataset, defaultboxandwhiskercategorydatasettests, epsilon, epsilon, io, r1, r1, r2, row1, util

The jfreechart DefaultBoxAndWhiskerCategoryDatasetTests.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.]
 *
 * ---------------------------------------------
 * DefaultBoxAndWhiskerCategoryDatasetTests.java
 * ---------------------------------------------
 * (C) Copyright 2004-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 01-Mar-2004 : Version 1 (DG);
 * 17-Apr-2007 : Added a test for bug 1701822 (DG);
 * 28-Sep-2007 : Enhanced testClone() (DG);
 * 02-Oct-2007 : Added new tests (DG);
 * 03-Oct-2007 : Added getTestRangeBounds() and testRemove() (DG);
 *
 */

package org.jfree.data.statistics.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.ArrayList;

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

import org.jfree.data.Range;
import org.jfree.data.UnknownKeyException;
import org.jfree.data.statistics.BoxAndWhiskerItem;
import org.jfree.data.statistics.DefaultBoxAndWhiskerCategoryDataset;

/**
 * Tests for the {@link DefaultBoxAndWhiskerCategoryDataset} class.
 */
public class DefaultBoxAndWhiskerCategoryDatasetTests extends TestCase {

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

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

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        DefaultBoxAndWhiskerCategoryDataset d1
                = new DefaultBoxAndWhiskerCategoryDataset();
        d1.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                new Double(3.0), new Double(4.0), new Double(5.0),
                new Double(6.0), new Double(7.0), new Double(8.0),
                new ArrayList()), "ROW1", "COLUMN1");
        DefaultBoxAndWhiskerCategoryDataset d2
                = new DefaultBoxAndWhiskerCategoryDataset();
        d2.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                new Double(3.0), new Double(4.0), new Double(5.0),
                new Double(6.0), new Double(7.0), new Double(8.0),
                new ArrayList()), "ROW1", "COLUMN1");
        assertTrue(d1.equals(d2));
        assertTrue(d2.equals(d1));
    }

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

        DefaultBoxAndWhiskerCategoryDataset d1
                = new DefaultBoxAndWhiskerCategoryDataset();
        d1.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                new Double(3.0), new Double(4.0), new Double(5.0),
                new Double(6.0), new Double(7.0), new Double(8.0),
                new ArrayList()), "ROW1", "COLUMN1");
        DefaultBoxAndWhiskerCategoryDataset d2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(d1);
            out.close();

            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                    buffer.toByteArray()));
            d2 = (DefaultBoxAndWhiskerCategoryDataset) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(d1, d2);

    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        DefaultBoxAndWhiskerCategoryDataset d1
                = new DefaultBoxAndWhiskerCategoryDataset();
        d1.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                new Double(3.0), new Double(4.0), new Double(5.0),
                new Double(6.0), new Double(7.0), new Double(8.0),
                new ArrayList()), "ROW1", "COLUMN1");
        DefaultBoxAndWhiskerCategoryDataset d2 = null;
        try {
            d2 = (DefaultBoxAndWhiskerCategoryDataset) d1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(d1 != d2);
        assertTrue(d1.getClass() == d2.getClass());
        assertTrue(d1.equals(d2));

        // test independence
        d1.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                new Double(3.0), new Double(4.0), new Double(5.0),
                new Double(6.0), new Double(7.0), new Double(8.0),
                new ArrayList()), "ROW2", "COLUMN1");
        assertFalse(d1.equals(d2));
    }

    /**
     * A simple test for bug report 1701822.
     */
    public void test1701822() {
        DefaultBoxAndWhiskerCategoryDataset dataset
                = new DefaultBoxAndWhiskerCategoryDataset();
        try {
            dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                    new Double(3.0), new Double(4.0), new Double(5.0),
                    new Double(6.0), null, new Double(8.0),
                    new ArrayList()), "ROW1", "COLUMN1");
            dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                    new Double(3.0), new Double(4.0), new Double(5.0),
                    new Double(6.0), new Double(7.0), null,
                    new ArrayList()), "ROW1", "COLUMN2");
        }
        catch (NullPointerException e) {
            assertTrue(false);
        }

    }

    private static final double EPSILON = 0.0000000001;

    /**
     * Some checks for the add() method.
     */
    public void testAdd() {
        DefaultBoxAndWhiskerCategoryDataset dataset
                = new DefaultBoxAndWhiskerCategoryDataset();
        BoxAndWhiskerItem item1 = new BoxAndWhiskerItem(1.0, 2.0, 3.0, 4.0,
                5.0, 6.0, 7.0, 8.0, new ArrayList());
        dataset.add(item1, "R1", "C1");

        assertEquals(2.0, dataset.getValue("R1", "C1").doubleValue(), EPSILON);
        assertEquals(1.0, dataset.getMeanValue("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(2.0, dataset.getMedianValue("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(3.0, dataset.getQ1Value("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(4.0, dataset.getQ3Value("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(5.0, dataset.getMinRegularValue("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(6.0, dataset.getMaxRegularValue("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(7.0, dataset.getMinOutlier("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(8.0, dataset.getMaxOutlier("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(new Range(7.0, 8.0), dataset.getRangeBounds(false));
    }

    /**
     * Some checks for the add() method.
     */
    public void testAddUpdatesCachedRange() {
        DefaultBoxAndWhiskerCategoryDataset dataset
                = new DefaultBoxAndWhiskerCategoryDataset();
        BoxAndWhiskerItem item1 = new BoxAndWhiskerItem(1.0, 2.0, 3.0, 4.0,
                5.0, 6.0, 7.0, 8.0, new ArrayList());
        dataset.add(item1, "R1", "C1");

        // now overwrite this item with another
        BoxAndWhiskerItem item2 = new BoxAndWhiskerItem(1.5, 2.5, 3.5, 4.5,
                5.5, 6.5, 7.5, 8.5, new ArrayList());
        dataset.add(item2, "R1", "C1");

        assertEquals(2.5, dataset.getValue("R1", "C1").doubleValue(), EPSILON);
        assertEquals(1.5, dataset.getMeanValue("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(2.5, dataset.getMedianValue("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(3.5, dataset.getQ1Value("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(4.5, dataset.getQ3Value("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(5.5, dataset.getMinRegularValue("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(6.5, dataset.getMaxRegularValue("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(7.5, dataset.getMinOutlier("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(8.5, dataset.getMaxOutlier("R1", "C1").doubleValue(),
                EPSILON);
        assertEquals(new Range(7.5, 8.5), dataset.getRangeBounds(false));
    }

    /**
     * Some basic checks for the constructor.
     */
    public void testConstructor() {
        DefaultBoxAndWhiskerCategoryDataset dataset
                = new DefaultBoxAndWhiskerCategoryDataset();
        assertEquals(0, dataset.getColumnCount());
        assertEquals(0, dataset.getRowCount());
        assertTrue(Double.isNaN(dataset.getRangeLowerBound(false)));
        assertTrue(Double.isNaN(dataset.getRangeUpperBound(false)));
    }

    /**
     * Some checks for the getRangeBounds() method.
     */
    public void testGetRangeBounds() {
        DefaultBoxAndWhiskerCategoryDataset d1
                = new DefaultBoxAndWhiskerCategoryDataset();
        d1.add(new BoxAndWhiskerItem(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0,
                new ArrayList()), "R1", "C1");
        assertEquals(new Range(7.0, 8.0), d1.getRangeBounds(false));
        assertEquals(new Range(7.0, 8.0), d1.getRangeBounds(true));

        d1.add(new BoxAndWhiskerItem(1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5,
                new ArrayList()), "R1", "C1");
        assertEquals(new Range(7.5, 8.5), d1.getRangeBounds(false));
        assertEquals(new Range(7.5, 8.5), d1.getRangeBounds(true));

        d1.add(new BoxAndWhiskerItem(2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5,
                new ArrayList()), "R2", "C1");
        assertEquals(new Range(7.5, 9.5), d1.getRangeBounds(false));
        assertEquals(new Range(7.5, 9.5), d1.getRangeBounds(true));

        // this replaces the entry with the current minimum value, but the new
        // minimum value is now in a different item
        d1.add(new BoxAndWhiskerItem(1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 8.6, 9.6,
                new ArrayList()), "R1", "C1");
        assertEquals(new Range(8.5, 9.6), d1.getRangeBounds(false));
        assertEquals(new Range(8.5, 9.6), d1.getRangeBounds(true));
    }

    /**
     * Some checks for the remove method.
     */
    public void testRemove() {
        DefaultBoxAndWhiskerCategoryDataset data
                = new DefaultBoxAndWhiskerCategoryDataset();

        boolean pass = false;
        try {
            data.remove("R1", "R2");
        }
        catch (UnknownKeyException e) {
            pass = true;
        }
        assertTrue(pass);
        data.add(new BoxAndWhiskerItem(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0,
                new ArrayList()), "R1", "C1");
        assertEquals(new Range(7.0, 8.0), data.getRangeBounds(false));
        assertEquals(new Range(7.0, 8.0), data.getRangeBounds(true));

        data.add(new BoxAndWhiskerItem(2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5,
                new ArrayList()), "R2", "C1");
        assertEquals(new Range(7.0, 9.5), data.getRangeBounds(false));
        assertEquals(new Range(7.0, 9.5), data.getRangeBounds(true));

        data.remove("R1", "C1");
        assertEquals(new Range(8.5, 9.5), data.getRangeBounds(false));
        assertEquals(new Range(8.5, 9.5), data.getRangeBounds(true));
    }

}

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