Java tutorial
/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2013, 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. * * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. * Other names may be trademarks of their respective owners.] * * ------------------------------ * DefaultHeatMapDatasetTest.java * ------------------------------ * (C) Copyright 2009-2013, by Object Refinery Limited. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * Changes: * -------- * 28-Jan-2009 : Version 1 (DG); * */ package org.jfree.data.general; import org.jfree.chart.TestUtilities; import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNull; import static org.junit.Assert.assertNotNull; import org.junit.Test; /** * Somes tests for the {@link DefaultHeatMapDataset} class. * * @since 1.0.13 */ public class DefaultHeatMapDatasetTest implements DatasetChangeListener { /** The last event received. */ private DatasetChangeEvent lastEvent; /** * Records the last event. * * @param event the last event. */ @Override public void datasetChanged(DatasetChangeEvent event) { this.lastEvent = event; } private static final double EPSILON = 0.0000000001; /** * Some general tests. */ @Test public void testGeneral() { DefaultHeatMapDataset d = new DefaultHeatMapDataset(10, 5, 0.0, 9.0, 0.0, 5.0); assertEquals(10, d.getXSampleCount()); assertEquals(5, d.getYSampleCount()); assertEquals(0.0, d.getMinimumXValue(), EPSILON); assertEquals(9.0, d.getMaximumXValue(), EPSILON); assertEquals(0.0, d.getMinimumYValue(), EPSILON); assertEquals(5.0, d.getMaximumYValue(), EPSILON); assertEquals(0.0, d.getZValue(0, 0), EPSILON); d.addChangeListener(this); d.setZValue(0, 0, 1.0, false); assertEquals(1.0, d.getZValue(0, 0), EPSILON); assertNull(this.lastEvent); d.setZValue(1, 2, 2.0); assertEquals(2.0, d.getZValue(1, 2), EPSILON); assertNotNull(this.lastEvent); } /** * Some tests for the equals() method. */ @Test public void testEquals() { DefaultHeatMapDataset d1 = new DefaultHeatMapDataset(5, 10, 1.0, 2.0, 3.0, 4.0); DefaultHeatMapDataset d2 = new DefaultHeatMapDataset(5, 10, 1.0, 2.0, 3.0, 4.0); assertEquals(d1, d2); d1 = new DefaultHeatMapDataset(6, 10, 1.0, 2.0, 3.0, 4.0); assertFalse(d1.equals(d2)); d2 = new DefaultHeatMapDataset(6, 10, 1.0, 2.0, 3.0, 4.0); assertTrue(d1.equals(d2)); d1 = new DefaultHeatMapDataset(6, 11, 1.0, 2.0, 3.0, 4.0); assertFalse(d1.equals(d2)); d2 = new DefaultHeatMapDataset(6, 11, 1.0, 2.0, 3.0, 4.0); assertTrue(d1.equals(d2)); d1 = new DefaultHeatMapDataset(6, 11, 2.0, 2.0, 3.0, 4.0); assertFalse(d1.equals(d2)); d2 = new DefaultHeatMapDataset(6, 11, 2.0, 2.0, 3.0, 4.0); assertTrue(d1.equals(d2)); d1 = new DefaultHeatMapDataset(6, 11, 2.0, 3.0, 3.0, 4.0); assertFalse(d1.equals(d2)); d2 = new DefaultHeatMapDataset(6, 11, 2.0, 3.0, 3.0, 4.0); assertTrue(d1.equals(d2)); d1 = new DefaultHeatMapDataset(6, 11, 2.0, 3.0, 4.0, 4.0); assertFalse(d1.equals(d2)); d2 = new DefaultHeatMapDataset(6, 11, 2.0, 3.0, 4.0, 4.0); assertTrue(d1.equals(d2)); d1 = new DefaultHeatMapDataset(6, 11, 2.0, 3.0, 4.0, 5.0); assertFalse(d1.equals(d2)); d2 = new DefaultHeatMapDataset(6, 11, 2.0, 3.0, 4.0, 5.0); assertTrue(d1.equals(d2)); d1.setZValue(1, 2, 3.0); assertFalse(d1.equals(d2)); d2.setZValue(1, 2, 3.0); assertTrue(d1.equals(d2)); d1.setZValue(0, 0, Double.NEGATIVE_INFINITY); assertFalse(d1.equals(d2)); d2.setZValue(0, 0, Double.NEGATIVE_INFINITY); assertTrue(d1.equals(d2)); d1.setZValue(0, 1, Double.POSITIVE_INFINITY); assertFalse(d1.equals(d2)); d2.setZValue(0, 1, Double.POSITIVE_INFINITY); assertTrue(d1.equals(d2)); d1.setZValue(0, 2, Double.NaN); assertFalse(d1.equals(d2)); d2.setZValue(0, 2, Double.NaN); assertTrue(d1.equals(d2)); } /** * Confirm that cloning works. */ @Test public void testCloning() throws CloneNotSupportedException { DefaultHeatMapDataset d1 = new DefaultHeatMapDataset(2, 3, -1.0, 4.0, -2.0, 5.0); d1.setZValue(0, 0, 10.0); d1.setZValue(0, 1, Double.NEGATIVE_INFINITY); d1.setZValue(0, 2, Double.POSITIVE_INFINITY); d1.setZValue(1, 0, Double.NaN); DefaultHeatMapDataset d2 = (DefaultHeatMapDataset) d1.clone(); assertTrue(d1 != d2); assertTrue(d1.getClass() == d2.getClass()); assertTrue(d1.equals(d2)); // simple check for independence d1.setZValue(0, 0, 11.0); assertFalse(d1.equals(d2)); d2.setZValue(0, 0, 11.0); assertTrue(d1.equals(d2)); } /** * Serialize an instance, restore it, and check for equality. */ @Test public void testSerialization() { DefaultHeatMapDataset d1 = new DefaultHeatMapDataset(2, 3, -1.0, 4.0, -2.0, 5.0); d1.setZValue(0, 0, 10.0); d1.setZValue(0, 1, Double.NEGATIVE_INFINITY); d1.setZValue(0, 2, Double.POSITIVE_INFINITY); d1.setZValue(1, 0, Double.NaN); DefaultHeatMapDataset d2 = (DefaultHeatMapDataset) TestUtilities.serialised(d1); assertEquals(d1, d2); } }