/*
* RapidMiner
*
* Copyright (C) 2001-2008 by Rapid-I and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapid-i.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.tools.math.matrix.test;
import com.rapidminer.tools.math.matrix.Matrix;
import com.rapidminer.tools.math.matrix.SimpleSparseMatrix;
import junit.framework.TestCase;
/**
* Tests the simple sparse matrix.
*
* @author Michael Wurst, Ingo Mierswa
* @version $Id: SimpleSparseMatrixTest.java,v 1.5 2008/09/12 10:31:33 tobiasmalbrecht Exp $
*/
public class SimpleSparseMatrixTest extends TestCase {
public void testAccess() {
Matrix<String, String> m = new SimpleSparseMatrix<String, String>();
m.setEntry("a", "b", 0.4);
assertEquals(m.getEntry("a", "b"), 0.4);
m.setEntry("a", "c", 0.0);
assertEquals(m.getEntry("a", "c"), 0.0);
assertEquals(m.getEntry("a", "d"), 0.0);
assertEquals(m.getEntry("d", "a"), 0.0);
assertEquals(m.getEntry("x", "y"), 0.0);
m.incEntry("a", "b", 0.4);
assertEquals(m.getEntry("a", "b"), 0.8);
m.incEntry("a", "e", 0.4);
assertEquals(m.getNumXLabels(), 1);
assertEquals(m.getNumYLabels(), 3);
}
}