/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2005, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. * * [Java is a trademark or registered trademark of Sun Microsystems, Inc. * in the United States and other countries.] * * ---------------------------------- * MeanAndStandardDeviationTests.java * ---------------------------------- * (C) Copyright 2005, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: MeanAndStandardDeviationTests.java,v 1.1 2005/02/09 13:52:47 mungady Exp $ * * Changes * ------- * 05-Feb-2005 : Version 1 (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 junit.framework.Test; import junit.framework.TestCase; import junit.framework.TestSuite; import org.jfree.data.statistics.MeanAndStandardDeviation; /** * Tests for the {@link MeanAndStandardDeviation} class. */ public class MeanAndStandardDeviationTests extends TestCase { /** * Returns the tests as a test suite. * * @return The test suite. */ public static Test suite() { return new TestSuite(MeanAndStandardDeviationTests.class); } /** * Constructs a new set of tests. * * @param name the name of the tests. */ public MeanAndStandardDeviationTests(String name) { super(name); } /** * Confirm that the equals method can distinguish all the required fields. */ public void testEquals() { MeanAndStandardDeviation m1 = new MeanAndStandardDeviation(1.2, 3.4); MeanAndStandardDeviation m2 = new MeanAndStandardDeviation(1.2, 3.4); assertTrue(m1.equals(m2)); assertTrue(m2.equals(m1)); m1 = new MeanAndStandardDeviation(1.0, 3.4); assertFalse(m1.equals(m2)); m2 = new MeanAndStandardDeviation(1.0, 3.4); assertTrue(m1.equals(m2)); m1 = new MeanAndStandardDeviation(1.0, 3.0); assertFalse(m1.equals(m2)); m2 = new MeanAndStandardDeviation(1.0, 3.0); assertTrue(m1.equals(m2)); } /** * Immutable class - should not be cloneable. */ public void testCloning() { MeanAndStandardDeviation m1 = new MeanAndStandardDeviation(1.2, 3.4); assertFalse(m1 instanceof Cloneable); } /** * Serialize an instance, restore it, and check for equality. */ public void testSerialization() { MeanAndStandardDeviation m1 = new MeanAndStandardDeviation(1.2, 3.4); MeanAndStandardDeviation m2 = null; try { ByteArrayOutputStream buffer = new ByteArrayOutputStream(); ObjectOutput out = new ObjectOutputStream(buffer); out.writeObject(m1); out.close(); ObjectInput in = new ObjectInputStream( new ByteArrayInputStream(buffer.toByteArray()) ); m2 = (MeanAndStandardDeviation) in.readObject(); in.close(); } catch (Exception e) { System.out.println(e.toString()); } assertEquals(m1, m2); } }
