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jfreechart example source code file (XYStepAreaRendererTests.java)
The jfreechart XYStepAreaRendererTests.java source code/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2008, 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. * * [Java is a trademark or registered trademark of Sun Microsystems, Inc. * in the United States and other countries.] * * ---------------------------- * XYStepAreaRendererTests.java * ---------------------------- * (C) Copyright 2003-2008, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): Matthias Rose; * * Changes * ------- * 25-Mar-2003 : Version 1 (DG); * 26-Sep-2003 : copied XYStepRendererTests.java and used for * testing XYStepAreaRenderer (MR); * 14-Feb-2007 : Extended testEquals() (DG); * 22-Apr-2008 : Added testPublicCloneable (DG); * */ package org.jfree.chart.renderer.xy.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.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYStepAreaRenderer; import org.jfree.data.xy.DefaultTableXYDataset; import org.jfree.data.xy.XYSeries; import org.jfree.util.PublicCloneable; /** * Tests for the {@link XYStepAreaRenderer} class. */ public class XYStepAreaRendererTests extends TestCase { /** * Returns the tests as a test suite. * * @return The test suite. */ public static Test suite() { return new TestSuite(XYStepAreaRendererTests.class); } /** * Constructs a new set of tests. * * @param name the name of the tests. */ public XYStepAreaRendererTests(String name) { super(name); } /** * Check that the equals() method distinguishes all fields. */ public void testEquals() { XYStepAreaRenderer r1 = new XYStepAreaRenderer(); XYStepAreaRenderer r2 = new XYStepAreaRenderer(); assertEquals(r1, r2); r1.setOutline(true); assertFalse(r1.equals(r2)); r2.setOutline(true); assertTrue(r1.equals(r2)); r1.setShapesVisible(true); assertFalse(r1.equals(r2)); r2.setShapesVisible(true); assertTrue(r1.equals(r2)); r1.setShapesFilled(true); assertFalse(r1.equals(r2)); r2.setShapesFilled(true); assertTrue(r1.equals(r2)); r1.setPlotArea(false); assertFalse(r1.equals(r2)); r2.setPlotArea(false); assertTrue(r1.equals(r2)); r1.setRangeBase(-1.0); assertFalse(r1.equals(r2)); r2.setRangeBase(-1.0); assertTrue(r1.equals(r2)); } /** * Two objects that are equal are required to return the same hashCode. */ public void testHashcode() { XYStepAreaRenderer r1 = new XYStepAreaRenderer(); XYStepAreaRenderer r2 = new XYStepAreaRenderer(); assertTrue(r1.equals(r2)); int h1 = r1.hashCode(); int h2 = r2.hashCode(); assertEquals(h1, h2); } /** * Confirm that cloning works. */ public void testCloning() { XYStepAreaRenderer r1 = new XYStepAreaRenderer(); XYStepAreaRenderer r2 = null; try { r2 = (XYStepAreaRenderer) r1.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); } assertTrue(r1 != r2); assertTrue(r1.getClass() == r2.getClass()); assertTrue(r1.equals(r2)); } /** * Verify that this class implements {@link PublicCloneable}. */ public void testPublicCloneable() { XYStepAreaRenderer r1 = new XYStepAreaRenderer(); assertTrue(r1 instanceof PublicCloneable); } /** * Serialize an instance, restore it, and check for equality. */ public void testSerialization() { XYStepAreaRenderer r1 = new XYStepAreaRenderer(); XYStepAreaRenderer r2 = null; try { ByteArrayOutputStream buffer = new ByteArrayOutputStream(); ObjectOutput out = new ObjectOutputStream(buffer); out.writeObject(r1); out.close(); ObjectInput in = new ObjectInputStream( new ByteArrayInputStream(buffer.toByteArray())); r2 = (XYStepAreaRenderer) in.readObject(); in.close(); } catch (Exception e) { e.printStackTrace(); } assertEquals(r1, r2); } /** * Draws the chart with a <code>null info object to make sure that * no exceptions are thrown (particularly by code in the renderer). */ public void testDrawWithNullInfo() { boolean success = false; try { DefaultTableXYDataset dataset = new DefaultTableXYDataset(); XYSeries s1 = new XYSeries("Series 1", true, false); s1.add(5.0, 5.0); s1.add(10.0, 15.5); s1.add(15.0, 9.5); s1.add(20.0, 7.5); dataset.addSeries(s1); XYSeries s2 = new XYSeries("Series 2", true, false); s2.add(5.0, 5.0); s2.add(10.0, 15.5); s2.add(15.0, 9.5); s2.add(20.0, 3.5); dataset.addSeries(s2); XYPlot plot = new XYPlot(dataset, new NumberAxis("X"), new NumberAxis("Y"), new XYStepAreaRenderer()); JFreeChart chart = new JFreeChart(plot); /* BufferedImage image = */ chart.createBufferedImage(300, 200, null); success = true; } catch (NullPointerException e) { e.printStackTrace(); success = false; } assertTrue(success); } } Other jfreechart examples (source code examples)Here is a short list of links related to this jfreechart XYStepAreaRendererTests.java source code file: |
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