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jfreechart example source code file (DefaultKeyedValues2DTests.java)

This example jfreechart source code file (DefaultKeyedValues2DTests.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

c1, c1, c2, c2, defaultkeyedvalues2d, defaultkeyedvalues2d, epsilon, indexoutofboundsexception, integer, io, r1, r1, r2, unknownkeyexception, xx

The jfreechart DefaultKeyedValues2DTests.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.]
 *
 * ------------------------------
 * DefaultKeyedValues2DTests.java
 * ------------------------------
 * (C) Copyright 2003-2008 by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 13-Mar-2003 : Version 1 (DG);
 * 15-Sep-2004 : Updated cloning test (DG);
 * 06-Oct-2005 : Added testEquals() (DG);
 * 18-Jan-2007 : Added testSparsePopulation() (DG);
 * 26-Feb-2007 : Added some basic tests (DG);
 * 30-Mar-2007 : Added a test for bug 1690654 (DG);
 * 21-Nov-2007 : Added testRemoveColumnByKey() method (DG);
 *
 */

package org.jfree.data.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 junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.jfree.data.DefaultKeyedValues2D;
import org.jfree.data.UnknownKeyException;

/**
 * Tests for the {@link DefaultKeyedValues2D} class.
 */
public class DefaultKeyedValues2DTests extends TestCase {

    /**
     * Returns the tests as a test suite.
     *
     * @return The test suite.
     */
    public static Test suite() {
        return new TestSuite(DefaultKeyedValues2DTests.class);
    }

    /**
     * Constructs a new set of tests.
     *
     * @param name  the name of the tests.
     */
    public DefaultKeyedValues2DTests(String name) {
        super(name);
    }

    /**
     * Some checks for the getValue() method.
     */
    public void testGetValue() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        d.addValue(new Double(1.0), "R1", "C1");
        assertEquals(new Double(1.0), d.getValue("R1", "C1"));
        boolean pass = false;
        try {
            d.getValue("XX", "C1");
        }
        catch (UnknownKeyException e) {
            pass = true;
        }
        assertTrue(pass);

        pass = false;
        try {
            d.getValue("R1", "XX");
        }
        catch (UnknownKeyException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some checks for the clone() method.
     */
    public void testCloning() {
        DefaultKeyedValues2D v1 = new DefaultKeyedValues2D();
        v1.setValue(new Integer(1), "V1", "C1");
        v1.setValue(null, "V2", "C1");
        v1.setValue(new Integer(3), "V3", "C2");
        DefaultKeyedValues2D v2 = null;
        try {
            v2 = (DefaultKeyedValues2D) v1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(v1 != v2);
        assertTrue(v1.getClass() == v2.getClass());
        assertTrue(v1.equals(v2));

        // check that clone is independent of the original
        v2.setValue(new Integer(2), "V2", "C1");
        assertFalse(v1.equals(v2));
    }

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

        DefaultKeyedValues2D kv2D1 = new DefaultKeyedValues2D();
        kv2D1.addValue(new Double(234.2), "Row1", "Col1");
        kv2D1.addValue(null, "Row1", "Col2");
        kv2D1.addValue(new Double(345.9), "Row2", "Col1");
        kv2D1.addValue(new Double(452.7), "Row2", "Col2");

        DefaultKeyedValues2D kv2D2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(kv2D1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            kv2D2 = (DefaultKeyedValues2D) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(kv2D1, kv2D2);

    }

    /**
     * Some checks for the equals() method.
     */
    public void testEquals() {
        DefaultKeyedValues2D d1 = new DefaultKeyedValues2D();
        DefaultKeyedValues2D d2 = new DefaultKeyedValues2D();
        assertTrue(d1.equals(d2));
        assertTrue(d2.equals(d1));

        d1.addValue(new Double(1.0), new Double(2.0), "S1");
        assertFalse(d1.equals(d2));
        d2.addValue(new Double(1.0), new Double(2.0), "S1");
        assertTrue(d1.equals(d2));
    }

    /**
     * Populates a data structure with sparse entries, then checks that
     * the unspecified entries return null.
     */
    public void testSparsePopulation() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        d.addValue(new Integer(11), "R1", "C1");
        d.addValue(new Integer(22), "R2", "C2");

        assertEquals(new Integer(11), d.getValue("R1", "C1"));
        assertNull(d.getValue("R1", "C2"));
        assertEquals(new Integer(22), d.getValue("R2", "C2"));
        assertNull(d.getValue("R2", "C1"));
    }

    /**
     * Some basic checks for the getRowCount() method.
     */
    public void testRowCount() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        assertEquals(0, d.getRowCount());
        d.addValue(new Double(1.0), "R1", "C1");
        assertEquals(1, d.getRowCount());
        d.addValue(new Double(2.0), "R2", "C1");
        assertEquals(2, d.getRowCount());
    }

    /**
     * Some basic checks for the getColumnCount() method.
     */
    public void testColumnCount() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        assertEquals(0, d.getColumnCount());
        d.addValue(new Double(1.0), "R1", "C1");
        assertEquals(1, d.getColumnCount());
        d.addValue(new Double(2.0), "R1", "C2");
        assertEquals(2, d.getColumnCount());
    }

    private static final double EPSILON = 0.0000000001;

    /**
     * Some basic checks for the getValue(int, int) method.
     */
    public void testGetValue2() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        boolean pass = false;
        try {
            d.getValue(0, 0);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);
        d.addValue(new Double(1.0), "R1", "C1");
        assertEquals(1.0, d.getValue(0, 0).doubleValue(), EPSILON);
        d.addValue(new Double(2.0), "R2", "C2");
        assertEquals(2.0, d.getValue(1, 1).doubleValue(), EPSILON);
        assertNull(d.getValue(1, 0));
        assertNull(d.getValue(0, 1));

        pass = false;
        try {
            d.getValue(2, 0);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some basic checks for the getRowKey() method.
     */
    public void testGetRowKey() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        boolean pass = false;
        try {
            d.getRowKey(0);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);
        d.addValue(new Double(1.0), "R1", "C1");
        d.addValue(new Double(1.0), "R2", "C1");
        assertEquals("R1", d.getRowKey(0));
        assertEquals("R2", d.getRowKey(1));

        // check sorted rows
        d = new DefaultKeyedValues2D(true);
        d.addValue(new Double(1.0), "R1", "C1");
        assertEquals("R1", d.getRowKey(0));
        d.addValue(new Double(0.0), "R0", "C1");
        assertEquals("R0", d.getRowKey(0));
        assertEquals("R1", d.getRowKey(1));
    }

    /**
     * Some basic checks for the getColumnKey() method.
     */
    public void testGetColumnKey() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        boolean pass = false;
        try {
            d.getColumnKey(0);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);
        d.addValue(new Double(1.0), "R1", "C1");
        d.addValue(new Double(1.0), "R1", "C2");
        assertEquals("C1", d.getColumnKey(0));
        assertEquals("C2", d.getColumnKey(1));
    }

    /**
     * Some basic checks for the removeValue() method.
     */
    public void testRemoveValue() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        d.removeValue("R1", "C1");
        d.addValue(new Double(1.0), "R1", "C1");
        d.removeValue("R1", "C1");
        assertEquals(0, d.getRowCount());
        assertEquals(0, d.getColumnCount());

        d.addValue(new Double(1.0), "R1", "C1");
        d.addValue(new Double(2.0), "R2", "C1");
        d.removeValue("R1", "C1");
        assertEquals(new Double(2.0), d.getValue(0, 0));
    }

    /**
     * A test for bug 1690654.
     */
    public void testRemoveValueBug1690654() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        d.addValue(new Double(1.0), "R1", "C1");
        d.addValue(new Double(2.0), "R2", "C2");
        assertEquals(2, d.getColumnCount());
        assertEquals(2, d.getRowCount());
        d.removeValue("R2", "C2");
        assertEquals(1, d.getColumnCount());
        assertEquals(1, d.getRowCount());
        assertEquals(new Double(1.0), d.getValue(0, 0));
    }

    /**
     * Some basic checks for the removeRow() method.
     */
    public void testRemoveRow() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        boolean pass = false;
        try {
            d.removeRow(0);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);
    }

    /**
     * Some basic checks for the removeColumn(Comparable) method.
     */
    public void testRemoveColumnByKey() {
        DefaultKeyedValues2D d = new DefaultKeyedValues2D();
        d.addValue(new Double(1.0), "R1", "C1");
        d.addValue(new Double(2.0), "R2", "C2");
        d.removeColumn("C2");
        d.addValue(new Double(3.0), "R2", "C2");
        assertEquals(3.0, d.getValue("R2", "C2").doubleValue(), EPSILON);

        // check for unknown column
        boolean pass = false;
        try {
            d.removeColumn("XXX");
        }
        catch (UnknownKeyException e) {
            pass = true;
        }
        assertTrue(pass);
    }

}

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