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.] * * ----------------------------- * DefaultKeyedValues2DTest.java * ----------------------------- * (C) Copyright 2003-2013 by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * Changes * ------- * 13-Mar-2003 : Version 1 (DG); * 15-Sep-2004 : Updated cloning test (DG); * 06-Oct-2005 : Added testEquals() (DG); * 18-Jan-2007 : Added testSparsePopulation() (DG); * 26-Feb-2007 : Added some basic tests (DG); * 30-Mar-2007 : Added a test for bug 1690654 (DG); * 21-Nov-2007 : Added testRemoveColumnByKey() method (DG); * */ package org.jfree.data; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertNull; import org.jfree.chart.TestUtilities; import org.junit.Test; /** * Tests for the {@link DefaultKeyedValues2D} class. */ public class DefaultKeyedValues2DTest { /** * Some checks for the getValue() method. */ @Test public void testGetValue() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); d.addValue(new Double(1.0), "R1", "C1"); assertEquals(new Double(1.0), 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); } /** * Some checks for the clone() method. */ @Test public void testCloning() throws CloneNotSupportedException { DefaultKeyedValues2D v1 = new DefaultKeyedValues2D(); v1.setValue(new Integer(1), "V1", "C1"); v1.setValue(null, "V2", "C1"); v1.setValue(new Integer(3), "V3", "C2"); DefaultKeyedValues2D v2 = (DefaultKeyedValues2D) v1.clone(); assertTrue(v1 != v2); assertTrue(v1.getClass() == v2.getClass()); assertTrue(v1.equals(v2)); // check that clone is independent of the original v2.setValue(new Integer(2), "V2", "C1"); assertFalse(v1.equals(v2)); } /** * Serialize an instance, restore it, and check for equality. */ @Test public void testSerialization() { DefaultKeyedValues2D kv2D1 = new DefaultKeyedValues2D(); kv2D1.addValue(new Double(234.2), "Row1", "Col1"); kv2D1.addValue(null, "Row1", "Col2"); kv2D1.addValue(new Double(345.9), "Row2", "Col1"); kv2D1.addValue(new Double(452.7), "Row2", "Col2"); DefaultKeyedValues2D kv2D2 = (DefaultKeyedValues2D) TestUtilities.serialised(kv2D1); assertEquals(kv2D1, kv2D2); } /** * Some checks for the equals() method. */ @Test public void testEquals() { DefaultKeyedValues2D d1 = new DefaultKeyedValues2D(); DefaultKeyedValues2D d2 = new DefaultKeyedValues2D(); assertTrue(d1.equals(d2)); assertTrue(d2.equals(d1)); d1.addValue(new Double(1.0), new Double(2.0), "S1"); assertFalse(d1.equals(d2)); d2.addValue(new Double(1.0), new Double(2.0), "S1"); assertTrue(d1.equals(d2)); } /** * Populates a data structure with sparse entries, then checks that * the unspecified entries return null. */ @Test public void testSparsePopulation() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); d.addValue(new Integer(11), "R1", "C1"); d.addValue(new Integer(22), "R2", "C2"); assertEquals(new Integer(11), d.getValue("R1", "C1")); assertNull(d.getValue("R1", "C2")); assertEquals(new Integer(22), d.getValue("R2", "C2")); assertNull(d.getValue("R2", "C1")); } /** * Some basic checks for the getRowCount() method. */ @Test public void testRowCount() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); assertEquals(0, d.getRowCount()); d.addValue(new Double(1.0), "R1", "C1"); assertEquals(1, d.getRowCount()); d.addValue(new Double(2.0), "R2", "C1"); assertEquals(2, d.getRowCount()); } /** * Some basic checks for the getColumnCount() method. */ @Test public void testColumnCount() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); assertEquals(0, d.getColumnCount()); d.addValue(new Double(1.0), "R1", "C1"); assertEquals(1, d.getColumnCount()); d.addValue(new Double(2.0), "R1", "C2"); assertEquals(2, d.getColumnCount()); } private static final double EPSILON = 0.0000000001; /** * Some basic checks for the getValue(int, int) method. */ @Test public void testGetValue2() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); boolean pass = false; try { d.getValue(0, 0); } catch (IndexOutOfBoundsException e) { pass = true; } assertTrue(pass); d.addValue(new Double(1.0), "R1", "C1"); assertEquals(1.0, d.getValue(0, 0).doubleValue(), EPSILON); d.addValue(new Double(2.0), "R2", "C2"); assertEquals(2.0, d.getValue(1, 1).doubleValue(), EPSILON); assertNull(d.getValue(1, 0)); assertNull(d.getValue(0, 1)); pass = false; try { d.getValue(2, 0); } catch (IndexOutOfBoundsException e) { pass = true; } assertTrue(pass); } /** * Some basic checks for the getRowKey() method. */ @Test public void testGetRowKey() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); boolean pass = false; try { d.getRowKey(0); } catch (IndexOutOfBoundsException e) { pass = true; } assertTrue(pass); d.addValue(new Double(1.0), "R1", "C1"); d.addValue(new Double(1.0), "R2", "C1"); assertEquals("R1", d.getRowKey(0)); assertEquals("R2", d.getRowKey(1)); // check sorted rows d = new DefaultKeyedValues2D(true); d.addValue(new Double(1.0), "R1", "C1"); assertEquals("R1", d.getRowKey(0)); d.addValue(new Double(0.0), "R0", "C1"); assertEquals("R0", d.getRowKey(0)); assertEquals("R1", d.getRowKey(1)); } /** * Some basic checks for the getColumnKey() method. */ @Test public void testGetColumnKey() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); boolean pass = false; try { d.getColumnKey(0); } catch (IndexOutOfBoundsException e) { pass = true; } assertTrue(pass); d.addValue(new Double(1.0), "R1", "C1"); d.addValue(new Double(1.0), "R1", "C2"); assertEquals("C1", d.getColumnKey(0)); assertEquals("C2", d.getColumnKey(1)); } /** * Some basic checks for the removeValue() method. */ @Test public void testRemoveValue() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); d.removeValue("R1", "C1"); d.addValue(new Double(1.0), "R1", "C1"); d.removeValue("R1", "C1"); assertEquals(0, d.getRowCount()); assertEquals(0, d.getColumnCount()); d.addValue(new Double(1.0), "R1", "C1"); d.addValue(new Double(2.0), "R2", "C1"); d.removeValue("R1", "C1"); assertEquals(new Double(2.0), d.getValue(0, 0)); } /** * A test for bug 1690654. */ @Test public void testRemoveValueBug1690654() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); d.addValue(new Double(1.0), "R1", "C1"); d.addValue(new Double(2.0), "R2", "C2"); assertEquals(2, d.getColumnCount()); assertEquals(2, d.getRowCount()); d.removeValue("R2", "C2"); assertEquals(1, d.getColumnCount()); assertEquals(1, d.getRowCount()); assertEquals(new Double(1.0), d.getValue(0, 0)); } /** * Some basic checks for the removeRow() method. */ @Test public void testRemoveRow() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); boolean pass = false; try { d.removeRow(0); } catch (IndexOutOfBoundsException e) { pass = true; } assertTrue(pass); } /** * Some basic checks for the removeColumn(Comparable) method. */ @Test public void testRemoveColumnByKey() { DefaultKeyedValues2D d = new DefaultKeyedValues2D(); d.addValue(new Double(1.0), "R1", "C1"); d.addValue(new Double(2.0), "R2", "C2"); d.removeColumn("C2"); d.addValue(new Double(3.0), "R2", "C2"); assertEquals(3.0, d.getValue("R2", "C2").doubleValue(), EPSILON); // check for unknown column boolean pass = false; try { d.removeColumn("XXX"); } catch (UnknownKeyException e) { pass = true; } assertTrue(pass); } }