DataUtilitiesTests.java
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2007, 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.]
*
* -----------------------
* DataUtilitiesTests.java
* -----------------------
* (C) Copyright 2005, 2007, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 03-Mar-2005 : Version 1 (DG);
*
*/
package org.jfree.data.junit;
import junit.framework.TestCase;
import org.jfree.data.DataUtilities;
import org.jfree.data.DefaultKeyedValues2D;
/**
* Some tests for the {@link DataUtilities} class.
*/
public class DataUtilitiesTests extends TestCase {
/**
* Tests the createNumberArray2D() method.
*/
public void testCreateNumberArray2D() {
double[][] d = new double[2][];
d[0] = new double[] {1.1, 2.2, 3.3, 4.4};
d[1] = new double[] {1.1, 2.2, 3.3, 4.4, 5.5};
Number[][] n = DataUtilities.createNumberArray2D(d);
assertEquals(2, n.length);
assertEquals(4, n[0].length);
assertEquals(5, n[1].length);
}
private static final double EPSILON = 0.000000001;
/**
* Some checks for the calculateColumnTotal() method.
*/
public void testCalculateColumnTotal() {
DefaultKeyedValues2D table = new DefaultKeyedValues2D();
table.addValue(new Double(1.0), "R0", "C0");
table.addValue(new Double(2.0), "R0", "C1");
table.addValue(new Double(3.0), "R1", "C0");
table.addValue(new Double(4.0), "R1", "C1");
assertEquals(4.0, DataUtilities.calculateColumnTotal(table, 0), EPSILON);
assertEquals(6.0, DataUtilities.calculateColumnTotal(table, 1), EPSILON);
table.setValue(null, "R1", "C1");
assertEquals(2.0, DataUtilities.calculateColumnTotal(table, 1), EPSILON);
}
/**
* Some checks for the calculateRowTotal() method.
*/
public void testCalculateRowTotal() {
DefaultKeyedValues2D table = new DefaultKeyedValues2D();
table.addValue(new Double(1.0), "R0", "C0");
table.addValue(new Double(2.0), "R0", "C1");
table.addValue(new Double(3.0), "R1", "C0");
table.addValue(new Double(4.0), "R1", "C1");
assertEquals(3.0, DataUtilities.calculateRowTotal(table, 0), EPSILON);
assertEquals(7.0, DataUtilities.calculateRowTotal(table, 1), EPSILON);
table.setValue(null, "R1", "C1");
assertEquals(3.0, DataUtilities.calculateRowTotal(table, 1), EPSILON);
}
}