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jfreechart example source code file (DefaultIntervalCategoryDatasetTests.java)

This example jfreechart source code file (DefaultIntervalCategoryDatasetTests.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, category, category, clonenotsupportedexception, comparable, comparable, defaultintervalcategorydataset, defaultintervalcategorydataset, illegalargumentexception, io, runtimeexception, series, series, string, util, xx

The jfreechart DefaultIntervalCategoryDatasetTests.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2009, 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.]
 *
 * ----------------------------------------
 * DefaultIntervalCategoryDatasetTests.java
 * ----------------------------------------
 * (C) Copyright 2007-2009, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 08-Mar-2007 : Version 1 (DG);
 * 25-Feb-2008 : Added new tests to check behaviour of an empty dataset (DG);
 * 11-Feb-2009 : Fixed locale-sensitive failures (DG);
 *
 */

package org.jfree.data.category.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.data.DataUtilities;
import org.jfree.data.UnknownKeyException;
import org.jfree.data.category.DefaultIntervalCategoryDataset;

/**
 * Tests for the {@link DefaultIntervalCategoryDataset} class.
 */
public class DefaultIntervalCategoryDatasetTests extends TestCase {

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

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

    /**
     * Some checks for the getValue() method.
     */
    public void testGetValue() {
        double[] starts_S1 = new double[] {0.1, 0.2, 0.3};
        double[] starts_S2 = new double[] {0.3, 0.4, 0.5};
        double[] ends_S1 = new double[] {0.5, 0.6, 0.7};
        double[] ends_S2 = new double[] {0.7, 0.8, 0.9};
        double[][] starts = new double[][] {starts_S1, starts_S2};
        double[][] ends = new double[][] {ends_S1, ends_S2};
        DefaultIntervalCategoryDataset d = new DefaultIntervalCategoryDataset(
                new Comparable[] {"Series 1", "Series 2"},
                new Comparable[] {"Category 1", "Category 2", "Category 3"},
                DataUtilities.createNumberArray2D(starts),
                DataUtilities.createNumberArray2D(ends));

        assertEquals(new Double(0.1), d.getStartValue("Series 1",
                "Category 1"));
        assertEquals(new Double(0.2), d.getStartValue("Series 1",
                "Category 2"));
        assertEquals(new Double(0.3), d.getStartValue("Series 1",
                "Category 3"));
        assertEquals(new Double(0.3), d.getStartValue("Series 2",
                "Category 1"));
        assertEquals(new Double(0.4), d.getStartValue("Series 2",
                "Category 2"));
        assertEquals(new Double(0.5), d.getStartValue("Series 2",
                "Category 3"));

        assertEquals(new Double(0.5), d.getEndValue("Series 1",
                "Category 1"));
        assertEquals(new Double(0.6), d.getEndValue("Series 1",
                "Category 2"));
        assertEquals(new Double(0.7), d.getEndValue("Series 1",
                "Category 3"));
        assertEquals(new Double(0.7), d.getEndValue("Series 2",
                "Category 1"));
        assertEquals(new Double(0.8), d.getEndValue("Series 2",
                "Category 2"));
        assertEquals(new Double(0.9), d.getEndValue("Series 2",
                "Category 3"));

        boolean pass = false;
        try {
            d.getValue("XX", "Category 1");
        }
        catch (UnknownKeyException e) {
            pass = true;
        }
        assertTrue(pass);

        pass = false;
        try {
            d.getValue("Series 1", "XX");
        }
        catch (UnknownKeyException e) {
            pass = true;
        }
        assertTrue(pass);
    }


    /**
     * Some tests for the getRowCount() method.
     */
    public void testGetRowAndColumnCount() {
        double[] starts_S1 = new double[] {0.1, 0.2, 0.3};
        double[] starts_S2 = new double[] {0.3, 0.4, 0.5};
        double[] ends_S1 = new double[] {0.5, 0.6, 0.7};
        double[] ends_S2 = new double[] {0.7, 0.8, 0.9};
        double[][] starts = new double[][] {starts_S1, starts_S2};
        double[][] ends = new double[][] {ends_S1, ends_S2};
        DefaultIntervalCategoryDataset d
                = new DefaultIntervalCategoryDataset(starts, ends);

        assertEquals(2, d.getRowCount());
        assertEquals(3, d.getColumnCount());
    }

    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        double[] starts_S1A = new double[] {0.1, 0.2, 0.3};
        double[] starts_S2A = new double[] {0.3, 0.4, 0.5};
        double[] ends_S1A = new double[] {0.5, 0.6, 0.7};
        double[] ends_S2A = new double[] {0.7, 0.8, 0.9};
        double[][] startsA = new double[][] {starts_S1A, starts_S2A};
        double[][] endsA = new double[][] {ends_S1A, ends_S2A};
        DefaultIntervalCategoryDataset dA
                = new DefaultIntervalCategoryDataset(startsA, endsA);

        double[] starts_S1B = new double[] {0.1, 0.2, 0.3};
        double[] starts_S2B = new double[] {0.3, 0.4, 0.5};
        double[] ends_S1B = new double[] {0.5, 0.6, 0.7};
        double[] ends_S2B = new double[] {0.7, 0.8, 0.9};
        double[][] startsB = new double[][] {starts_S1B, starts_S2B};
        double[][] endsB = new double[][] {ends_S1B, ends_S2B};
        DefaultIntervalCategoryDataset dB
                = new DefaultIntervalCategoryDataset(startsB, endsB);

        assertTrue(dA.equals(dB));
        assertTrue(dB.equals(dA));

        // check that two empty datasets are equal
        DefaultIntervalCategoryDataset empty1
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        DefaultIntervalCategoryDataset empty2
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        assertTrue(empty1.equals(empty2));
    }

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

        double[] starts_S1 = new double[] {0.1, 0.2, 0.3};
        double[] starts_S2 = new double[] {0.3, 0.4, 0.5};
        double[] ends_S1 = new double[] {0.5, 0.6, 0.7};
        double[] ends_S2 = new double[] {0.7, 0.8, 0.9};
        double[][] starts = new double[][] {starts_S1, starts_S2};
        double[][] ends = new double[][] {ends_S1, ends_S2};
        DefaultIntervalCategoryDataset d1
                = new DefaultIntervalCategoryDataset(starts, ends);
        DefaultIntervalCategoryDataset 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 = (DefaultIntervalCategoryDataset) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(d1, d2);

    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        double[] starts_S1 = new double[] {0.1, 0.2, 0.3};
        double[] starts_S2 = new double[] {0.3, 0.4, 0.5};
        double[] ends_S1 = new double[] {0.5, 0.6, 0.7};
        double[] ends_S2 = new double[] {0.7, 0.8, 0.9};
        double[][] starts = new double[][] {starts_S1, starts_S2};
        double[][] ends = new double[][] {ends_S1, ends_S2};
        DefaultIntervalCategoryDataset d1 = new DefaultIntervalCategoryDataset(
                new Comparable[] {"Series 1", "Series 2"},
                new Comparable[] {"Category 1", "Category 2", "Category 3"},
                DataUtilities.createNumberArray2D(starts),
                DataUtilities.createNumberArray2D(ends));
        DefaultIntervalCategoryDataset d2 = null;
        try {
            d2 = (DefaultIntervalCategoryDataset) d1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(d1 != d2);
        assertTrue(d1.getClass() == d2.getClass());
        assertTrue(d1.equals(d2));

        // check that the clone doesn't share the same underlying arrays.
        d1.setStartValue(0, "Category 1", new Double(0.99));
        assertFalse(d1.equals(d2));
        d2.setStartValue(0, "Category 1", new Double(0.99));
        assertTrue(d1.equals(d2));
    }

    /**
     * A check to ensure that an empty dataset can be cloned.
     */
    public void testCloning2() {
        DefaultIntervalCategoryDataset d1
                = new DefaultIntervalCategoryDataset(new double[0][0],
                    new double[0][0]);
        DefaultIntervalCategoryDataset d2 = null;
        try {
            d2 = (DefaultIntervalCategoryDataset) d1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(d1 != d2);
        assertTrue(d1.getClass() == d2.getClass());
        assertTrue(d1.equals(d2));
    }

    /**
     * Some basic checks for the setStartValue() method.
     */
    public void testSetStartValue() {
        double[] starts_S1 = new double[] {0.1, 0.2, 0.3};
        double[] starts_S2 = new double[] {0.3, 0.4, 0.5};
        double[] ends_S1 = new double[] {0.5, 0.6, 0.7};
        double[] ends_S2 = new double[] {0.7, 0.8, 0.9};
        double[][] starts = new double[][] {starts_S1, starts_S2};
        double[][] ends = new double[][] {ends_S1, ends_S2};
        DefaultIntervalCategoryDataset d1 = new DefaultIntervalCategoryDataset(
                new Comparable[] {"Series 1", "Series 2"},
                new Comparable[] {"Category 1", "Category 2", "Category 3"},
                DataUtilities.createNumberArray2D(starts),
                DataUtilities.createNumberArray2D(ends));
        d1.setStartValue(0, "Category 2", new Double(99.9));
        assertEquals(new Double(99.9), d1.getStartValue("Series 1",
                "Category 2"));

        boolean pass = false;
        try {
            d1.setStartValue(-1, "Category 2", new Double(99.9));
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);

        pass = false;
        try {
            d1.setStartValue(2, "Category 2", new Double(99.9));
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some basic checks for the setEndValue() method.
     */
    public void testSetEndValue() {
        double[] starts_S1 = new double[] {0.1, 0.2, 0.3};
        double[] starts_S2 = new double[] {0.3, 0.4, 0.5};
        double[] ends_S1 = new double[] {0.5, 0.6, 0.7};
        double[] ends_S2 = new double[] {0.7, 0.8, 0.9};
        double[][] starts = new double[][] {starts_S1, starts_S2};
        double[][] ends = new double[][] {ends_S1, ends_S2};
        DefaultIntervalCategoryDataset d1 = new DefaultIntervalCategoryDataset(
                new Comparable[] {"Series 1", "Series 2"},
                new Comparable[] {"Category 1", "Category 2", "Category 3"},
                DataUtilities.createNumberArray2D(starts),
                DataUtilities.createNumberArray2D(ends));
        d1.setEndValue(0, "Category 2", new Double(99.9));
        assertEquals(new Double(99.9), d1.getEndValue("Series 1",
                "Category 2"));

        boolean pass = false;
        try {
            d1.setEndValue(-1, "Category 2", new Double(99.9));
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);

        pass = false;
        try {
            d1.setEndValue(2, "Category 2", new Double(99.9));
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some checks for the getSeriesCount() method.
     */
    public void testGetSeriesCount() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        assertEquals(0, empty.getSeriesCount());
    }

    /**
     * Some checks for the getCategoryCount() method.
     */
    public void testGetCategoryCount() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        assertEquals(0, empty.getCategoryCount());
    }

    /**
     * Some checks for the getSeriesIndex() method.
     */
    public void testGetSeriesIndex() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        assertEquals(-1, empty.getSeriesIndex("ABC"));
    }

    /**
     * Some checks for the getRowIndex() method.
     */
    public void testGetRowIndex() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        assertEquals(-1, empty.getRowIndex("ABC"));
    }

    /**
     * Some checks for the setSeriesKeys() method.
     */
    public void testSetSeriesKeys() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        boolean pass = true;
        try {
            empty.setSeriesKeys(new String[0]);
        }
        catch (RuntimeException e) {
            pass = false;
        }
        assertTrue(pass);
    }

    /**
     * Some checks for the getCategoryIndex() method.
     */
    public void testGetCategoryIndex() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        assertEquals(-1, empty.getCategoryIndex("ABC"));
    }

    /**
     * Some checks for the getColumnIndex() method.
     */
    public void testGetColumnIndex() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        assertEquals(-1, empty.getColumnIndex("ABC"));
    }

    /**
     * Some checks for the setCategoryKeys() method.
     */
    public void testSetCategoryKeys() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        boolean pass = true;
        try {
            empty.setCategoryKeys(new String[0]);
        }
        catch (RuntimeException e) {
            pass = false;
        }
        assertTrue(pass);
    }

    /**
     * Some checks for the getColumnKeys() method.
     */
    public void testGetColumnKeys() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        List keys = empty.getColumnKeys();
        assertEquals(0, keys.size());
    }

    /**
     * Some checks for the getRowKeys() method.
     */
    public void testGetRowKeys() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        List keys = empty.getRowKeys();
        assertEquals(0, keys.size());
    }

    /**
     * Some checks for the getColumnCount() method.
     */
    public void testGetColumnCount() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        assertEquals(0, empty.getColumnCount());
    }

    /**
     * Some checks for the getRowCount() method.
     */
    public void testGetRowCount() {
        // check an empty dataset
        DefaultIntervalCategoryDataset empty
                = new DefaultIntervalCategoryDataset(new double[0][0],
                        new double[0][0]);
        assertEquals(0, empty.getColumnCount());
    }

}

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