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.] * * ----------------------------------------- * DefaultMultiValueCategoryDatasetTest.java * ----------------------------------------- * (C) Copyright 2007-2013, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * Changes * ------- * 28-Sep-2007 : Version 1 (DG); * */ package org.jfree.data.statistics; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertFalse; import java.util.ArrayList; import java.util.List; import org.jfree.chart.TestUtilities; import org.jfree.data.UnknownKeyException; import org.junit.Test; /** * Tests for the {@link DefaultMultiValueCategoryDataset} class. */ public class DefaultMultiValueCategoryDatasetTest { /** * Some checks for the getValue() method. */ @Test public void testGetValue() { DefaultMultiValueCategoryDataset d = new DefaultMultiValueCategoryDataset(); List values = new ArrayList(); values.add(new Integer(1)); values.add(new Integer(2)); d.add(values, "R1", "C1"); assertEquals(new Double(1.5), 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); } /** * A simple check for the getValue(int, int) method. */ @Test public void testGetValue2() { DefaultMultiValueCategoryDataset d = new DefaultMultiValueCategoryDataset(); boolean pass = false; try { /* Number n =*/ d.getValue(0, 0); } catch (IndexOutOfBoundsException e) { pass = true; } assertTrue(pass); } /** * Some tests for the getRowCount() method. */ @Test public void testGetRowCount() { DefaultMultiValueCategoryDataset d = new DefaultMultiValueCategoryDataset(); assertTrue(d.getRowCount() == 0); List values = new ArrayList(); d.add(values, "R1", "C1"); assertTrue(d.getRowCount() == 1); d.add(values, "R2", "C1"); assertTrue(d.getRowCount() == 2); d.add(values, "R2", "C1"); assertTrue(d.getRowCount() == 2); } /** * Some tests for the getColumnCount() method. */ @Test public void testGetColumnCount() { DefaultMultiValueCategoryDataset d = new DefaultMultiValueCategoryDataset(); assertTrue(d.getColumnCount() == 0); List values = new ArrayList(); d.add(values, "R1", "C1"); assertTrue(d.getColumnCount() == 1); d.add(values, "R1", "C2"); assertTrue(d.getColumnCount() == 2); d.add(values, "R1", "C2"); assertTrue(d.getColumnCount() == 2); } /** * Confirm that the equals method can distinguish all the required fields. */ @Test public void testEquals() { DefaultMultiValueCategoryDataset d1 = new DefaultMultiValueCategoryDataset(); DefaultMultiValueCategoryDataset d2 = new DefaultMultiValueCategoryDataset(); assertTrue(d1.equals(d2)); assertTrue(d2.equals(d1)); List values = new ArrayList(); d1.add(values, "R1", "C1"); assertFalse(d1.equals(d2)); d2.add(values, "R1", "C1"); assertTrue(d1.equals(d2)); values.add(new Integer(99)); d1.add(values, "R1", "C1"); assertFalse(d1.equals(d2)); d2.add(values, "R1", "C1"); assertTrue(d1.equals(d2)); values.add(new Integer(99)); d1.add(values, "R1", "C2"); assertFalse(d1.equals(d2)); d2.add(values, "R1", "C2"); assertTrue(d1.equals(d2)); } /** * Serialize an instance, restore it, and check for equality. */ @Test public void testSerialization() { DefaultMultiValueCategoryDataset d1 = new DefaultMultiValueCategoryDataset(); DefaultMultiValueCategoryDataset d2 = (DefaultMultiValueCategoryDataset) TestUtilities.serialised(d1); assertEquals(d1, d2); } /** * Some checks for the add() method. */ @Test public void testAddValue() { DefaultMultiValueCategoryDataset d1 = new DefaultMultiValueCategoryDataset(); boolean pass = false; try { d1.add(null, "R1", "C1"); } catch (IllegalArgumentException e) { pass = true; } assertTrue(pass); List values = new ArrayList(); d1.add(values, "R2", "C1"); assertEquals(values, d1.getValues("R2", "C1")); pass = false; try { d1.add(values, null, "C2"); } catch (IllegalArgumentException e) { pass = true; } assertTrue(pass); } /** * Confirm that cloning works. */ @Test public void testCloning() throws CloneNotSupportedException { DefaultMultiValueCategoryDataset d1 = new DefaultMultiValueCategoryDataset(); DefaultMultiValueCategoryDataset d2 = (DefaultMultiValueCategoryDataset) d1.clone(); assertTrue(d1 != d2); assertTrue(d1.getClass() == d2.getClass()); assertTrue(d1.equals(d2)); // try a dataset with some content... List values = new ArrayList(); values.add(new Integer(99)); d1.add(values, "R1", "C1"); d2 = (DefaultMultiValueCategoryDataset) d1.clone(); assertTrue(d1 != d2); assertTrue(d1.getClass() == d2.getClass()); assertTrue(d1.equals(d2)); // check that the clone doesn't share the same underlying arrays. List values2 = new ArrayList(); values2.add(new Integer(111)); d1.add(values2, "R2", "C2"); assertFalse(d1.equals(d2)); d2.add(values2, "R2", "C2"); assertTrue(d1.equals(d2)); } }