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.] * * --------------------------------------- * DefaultIntervalCategoryDatasetTest.java * --------------------------------------- * (C) Copyright 2007-2013, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * Changes * ------- * 08-Mar-2007 : Version 1 (DG); * 25-Feb-2008 : Added new tests to check behaviour of an empty dataset (DG); * 11-Feb-2009 : Fixed locale-sensitive failures (DG); * */ package org.jfree.data.category; import java.util.List; import org.jfree.chart.TestUtilities; import org.jfree.data.DataUtilities; import org.jfree.data.UnknownKeyException; import org.junit.Test; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertFalse; /** * Tests for the {@link DefaultIntervalCategoryDataset} class. */ public class DefaultIntervalCategoryDatasetTest { /** * Some checks for the getValue() method. */ @Test public void testGetValue() { double[] starts_S1 = new double[] { 0.1, 0.2, 0.3 }; double[] starts_S2 = new double[] { 0.3, 0.4, 0.5 }; double[] ends_S1 = new double[] { 0.5, 0.6, 0.7 }; double[] ends_S2 = new double[] { 0.7, 0.8, 0.9 }; double[][] starts = new double[][] { starts_S1, starts_S2 }; double[][] ends = new double[][] { ends_S1, ends_S2 }; DefaultIntervalCategoryDataset d = new DefaultIntervalCategoryDataset( new Comparable[] { "Series 1", "Series 2" }, new Comparable[] { "Category 1", "Category 2", "Category 3" }, DataUtilities.createNumberArray2D(starts), DataUtilities.createNumberArray2D(ends)); assertEquals(new Double(0.1), d.getStartValue("Series 1", "Category 1")); assertEquals(new Double(0.2), d.getStartValue("Series 1", "Category 2")); assertEquals(new Double(0.3), d.getStartValue("Series 1", "Category 3")); assertEquals(new Double(0.3), d.getStartValue("Series 2", "Category 1")); assertEquals(new Double(0.4), d.getStartValue("Series 2", "Category 2")); assertEquals(new Double(0.5), d.getStartValue("Series 2", "Category 3")); assertEquals(new Double(0.5), d.getEndValue("Series 1", "Category 1")); assertEquals(new Double(0.6), d.getEndValue("Series 1", "Category 2")); assertEquals(new Double(0.7), d.getEndValue("Series 1", "Category 3")); assertEquals(new Double(0.7), d.getEndValue("Series 2", "Category 1")); assertEquals(new Double(0.8), d.getEndValue("Series 2", "Category 2")); assertEquals(new Double(0.9), d.getEndValue("Series 2", "Category 3")); boolean pass = false; try { d.getValue("XX", "Category 1"); } catch (UnknownKeyException e) { pass = true; } assertTrue(pass); pass = false; try { d.getValue("Series 1", "XX"); } catch (UnknownKeyException e) { pass = true; } assertTrue(pass); } /** * Some tests for the getRowCount() method. */ @Test public void testGetRowAndColumnCount() { double[] starts_S1 = new double[] { 0.1, 0.2, 0.3 }; double[] starts_S2 = new double[] { 0.3, 0.4, 0.5 }; double[] ends_S1 = new double[] { 0.5, 0.6, 0.7 }; double[] ends_S2 = new double[] { 0.7, 0.8, 0.9 }; double[][] starts = new double[][] { starts_S1, starts_S2 }; double[][] ends = new double[][] { ends_S1, ends_S2 }; DefaultIntervalCategoryDataset d = new DefaultIntervalCategoryDataset(starts, ends); assertEquals(2, d.getRowCount()); assertEquals(3, d.getColumnCount()); } /** * Confirm that the equals method can distinguish all the required fields. */ @Test public void testEquals() { double[] starts_S1A = new double[] { 0.1, 0.2, 0.3 }; double[] starts_S2A = new double[] { 0.3, 0.4, 0.5 }; double[] ends_S1A = new double[] { 0.5, 0.6, 0.7 }; double[] ends_S2A = new double[] { 0.7, 0.8, 0.9 }; double[][] startsA = new double[][] { starts_S1A, starts_S2A }; double[][] endsA = new double[][] { ends_S1A, ends_S2A }; DefaultIntervalCategoryDataset dA = new DefaultIntervalCategoryDataset(startsA, endsA); double[] starts_S1B = new double[] { 0.1, 0.2, 0.3 }; double[] starts_S2B = new double[] { 0.3, 0.4, 0.5 }; double[] ends_S1B = new double[] { 0.5, 0.6, 0.7 }; double[] ends_S2B = new double[] { 0.7, 0.8, 0.9 }; double[][] startsB = new double[][] { starts_S1B, starts_S2B }; double[][] endsB = new double[][] { ends_S1B, ends_S2B }; DefaultIntervalCategoryDataset dB = new DefaultIntervalCategoryDataset(startsB, endsB); assertTrue(dA.equals(dB)); assertTrue(dB.equals(dA)); // check that two empty datasets are equal DefaultIntervalCategoryDataset empty1 = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); DefaultIntervalCategoryDataset empty2 = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); assertTrue(empty1.equals(empty2)); } /** * Serialize an instance, restore it, and check for equality. */ @Test public void testSerialization() { double[] starts_S1 = new double[] { 0.1, 0.2, 0.3 }; double[] starts_S2 = new double[] { 0.3, 0.4, 0.5 }; double[] ends_S1 = new double[] { 0.5, 0.6, 0.7 }; double[] ends_S2 = new double[] { 0.7, 0.8, 0.9 }; double[][] starts = new double[][] { starts_S1, starts_S2 }; double[][] ends = new double[][] { ends_S1, ends_S2 }; DefaultIntervalCategoryDataset d1 = new DefaultIntervalCategoryDataset(starts, ends); DefaultIntervalCategoryDataset d2 = (DefaultIntervalCategoryDataset) TestUtilities.serialised(d1); assertEquals(d1, d2); } /** * Confirm that cloning works. */ @Test public void testCloning() throws CloneNotSupportedException { double[] starts_S1 = new double[] { 0.1, 0.2, 0.3 }; double[] starts_S2 = new double[] { 0.3, 0.4, 0.5 }; double[] ends_S1 = new double[] { 0.5, 0.6, 0.7 }; double[] ends_S2 = new double[] { 0.7, 0.8, 0.9 }; double[][] starts = new double[][] { starts_S1, starts_S2 }; double[][] ends = new double[][] { ends_S1, ends_S2 }; DefaultIntervalCategoryDataset d1 = new DefaultIntervalCategoryDataset( new Comparable[] { "Series 1", "Series 2" }, new Comparable[] { "Category 1", "Category 2", "Category 3" }, DataUtilities.createNumberArray2D(starts), DataUtilities.createNumberArray2D(ends)); DefaultIntervalCategoryDataset d2 = null; d2 = (DefaultIntervalCategoryDataset) 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. d1.setStartValue(0, "Category 1", new Double(0.99)); assertFalse(d1.equals(d2)); d2.setStartValue(0, "Category 1", new Double(0.99)); assertTrue(d1.equals(d2)); } /** * A check to ensure that an empty dataset can be cloned. */ @Test public void testCloning2() throws CloneNotSupportedException { DefaultIntervalCategoryDataset d1 = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); DefaultIntervalCategoryDataset d2 = null; d2 = (DefaultIntervalCategoryDataset) d1.clone(); assertTrue(d1 != d2); assertTrue(d1.getClass() == d2.getClass()); assertTrue(d1.equals(d2)); } /** * Some basic checks for the setStartValue() method. */ @Test public void testSetStartValue() { double[] starts_S1 = new double[] { 0.1, 0.2, 0.3 }; double[] starts_S2 = new double[] { 0.3, 0.4, 0.5 }; double[] ends_S1 = new double[] { 0.5, 0.6, 0.7 }; double[] ends_S2 = new double[] { 0.7, 0.8, 0.9 }; double[][] starts = new double[][] { starts_S1, starts_S2 }; double[][] ends = new double[][] { ends_S1, ends_S2 }; DefaultIntervalCategoryDataset d1 = new DefaultIntervalCategoryDataset( new Comparable[] { "Series 1", "Series 2" }, new Comparable[] { "Category 1", "Category 2", "Category 3" }, DataUtilities.createNumberArray2D(starts), DataUtilities.createNumberArray2D(ends)); d1.setStartValue(0, "Category 2", new Double(99.9)); assertEquals(new Double(99.9), d1.getStartValue("Series 1", "Category 2")); boolean pass = false; try { d1.setStartValue(-1, "Category 2", new Double(99.9)); } catch (IllegalArgumentException e) { pass = true; } assertTrue(pass); pass = false; try { d1.setStartValue(2, "Category 2", new Double(99.9)); } catch (IllegalArgumentException e) { pass = true; } assertTrue(pass); } /** * Some basic checks for the setEndValue() method. */ @Test public void testSetEndValue() { double[] starts_S1 = new double[] { 0.1, 0.2, 0.3 }; double[] starts_S2 = new double[] { 0.3, 0.4, 0.5 }; double[] ends_S1 = new double[] { 0.5, 0.6, 0.7 }; double[] ends_S2 = new double[] { 0.7, 0.8, 0.9 }; double[][] starts = new double[][] { starts_S1, starts_S2 }; double[][] ends = new double[][] { ends_S1, ends_S2 }; DefaultIntervalCategoryDataset d1 = new DefaultIntervalCategoryDataset( new Comparable[] { "Series 1", "Series 2" }, new Comparable[] { "Category 1", "Category 2", "Category 3" }, DataUtilities.createNumberArray2D(starts), DataUtilities.createNumberArray2D(ends)); d1.setEndValue(0, "Category 2", new Double(99.9)); assertEquals(new Double(99.9), d1.getEndValue("Series 1", "Category 2")); boolean pass = false; try { d1.setEndValue(-1, "Category 2", new Double(99.9)); } catch (IllegalArgumentException e) { pass = true; } assertTrue(pass); pass = false; try { d1.setEndValue(2, "Category 2", new Double(99.9)); } catch (IllegalArgumentException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getSeriesCount() method. */ @Test public void testGetSeriesCount() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); assertEquals(0, empty.getSeriesCount()); } /** * Some checks for the getCategoryCount() method. */ @Test public void testGetCategoryCount() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); assertEquals(0, empty.getCategoryCount()); } /** * Some checks for the getSeriesIndex() method. */ @Test public void testGetSeriesIndex() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); assertEquals(-1, empty.getSeriesIndex("ABC")); } /** * Some checks for the getRowIndex() method. */ @Test public void testGetRowIndex() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); assertEquals(-1, empty.getRowIndex("ABC")); } /** * Some checks for the setSeriesKeys() method. */ @Test public void testSetSeriesKeys() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); boolean pass = true; try { empty.setSeriesKeys(new String[0]); } catch (RuntimeException e) { pass = false; } assertTrue(pass); } /** * Some checks for the getCategoryIndex() method. */ @Test public void testGetCategoryIndex() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); assertEquals(-1, empty.getCategoryIndex("ABC")); } /** * Some checks for the getColumnIndex() method. */ @Test public void testGetColumnIndex() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); assertEquals(-1, empty.getColumnIndex("ABC")); } /** * Some checks for the setCategoryKeys() method. */ @Test public void testSetCategoryKeys() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); boolean pass = true; try { empty.setCategoryKeys(new String[0]); } catch (RuntimeException e) { pass = false; } assertTrue(pass); } /** * Some checks for the getColumnKeys() method. */ @Test public void testGetColumnKeys() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); List keys = empty.getColumnKeys(); assertEquals(0, keys.size()); } /** * Some checks for the getRowKeys() method. */ @Test public void testGetRowKeys() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); List keys = empty.getRowKeys(); assertEquals(0, keys.size()); } /** * Some checks for the getColumnCount() method. */ @Test public void testGetColumnCount() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); assertEquals(0, empty.getColumnCount()); } /** * Some checks for the getRowCount() method. */ @Test public void testGetRowCount() { // check an empty dataset DefaultIntervalCategoryDataset empty = new DefaultIntervalCategoryDataset(new double[0][0], new double[0][0]); assertEquals(0, empty.getColumnCount()); } }