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jfreechart example source code file (XYBlockRendererTests.java)
The jfreechart XYBlockRendererTests.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.] * * ------------------------- * XYBlockRendererTests.java * ------------------------- * (C) Copyright 2006-2008, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * Changes * ------- * 05-Jul-2006 : Version 1 (DG); * 09-Mar-2007 : Added independence check to testCloning (DG); * 22-Apr-2008 : Added testPublicCloneable (DG); * */ package org.jfree.chart.renderer.xy.junit; import java.awt.Color; 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.renderer.GrayPaintScale; import org.jfree.chart.renderer.LookupPaintScale; import org.jfree.chart.renderer.xy.XYBlockRenderer; import org.jfree.data.Range; import org.jfree.data.xy.DefaultXYZDataset; import org.jfree.util.PublicCloneable; /** * Tests for the {@link XYBlockRenderer} class. */ public class XYBlockRendererTests extends TestCase { /** * Returns the tests as a test suite. * * @return The test suite. */ public static Test suite() { return new TestSuite(XYBlockRendererTests.class); } /** * Constructs a new set of tests. * * @param name the name of the tests. */ public XYBlockRendererTests(String name) { super(name); } /** * Test that the equals() method distinguishes all fields. */ public void testEquals() { // default instances XYBlockRenderer r1 = new XYBlockRenderer(); XYBlockRenderer r2 = new XYBlockRenderer(); assertTrue(r1.equals(r2)); assertTrue(r2.equals(r1)); // blockHeight r1.setBlockHeight(2.0); assertFalse(r1.equals(r2)); r2.setBlockHeight(2.0); assertTrue(r1.equals(r2)); // blockWidth r1.setBlockWidth(2.0); assertFalse(r1.equals(r2)); r2.setBlockWidth(2.0); assertTrue(r1.equals(r2)); // paintScale r1.setPaintScale(new GrayPaintScale(0.0, 1.0)); assertFalse(r1.equals(r2)); r2.setPaintScale(new GrayPaintScale(0.0, 1.0)); assertTrue(r1.equals(r2)); } /** * Two objects that are equal are required to return the same hashCode. */ public void testHashcode() { XYBlockRenderer r1 = new XYBlockRenderer(); XYBlockRenderer r2 = new XYBlockRenderer(); assertTrue(r1.equals(r2)); int h1 = r1.hashCode(); int h2 = r2.hashCode(); assertEquals(h1, h2); } /** * Confirm that cloning works. */ public void testCloning() { XYBlockRenderer r1 = new XYBlockRenderer(); LookupPaintScale scale1 = new LookupPaintScale(); r1.setPaintScale(scale1); XYBlockRenderer r2 = null; try { r2 = (XYBlockRenderer) r1.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); } assertTrue(r1 != r2); assertTrue(r1.getClass() == r2.getClass()); assertTrue(r1.equals(r2)); // check independence scale1.add(0.5, Color.red); assertFalse(r1.equals(r2)); LookupPaintScale scale2 = (LookupPaintScale) r2.getPaintScale(); scale2.add(0.5, Color.red); assertTrue(r1.equals(r2)); } /** * Verify that this class implements {@link PublicCloneable}. */ public void testPublicCloneable() { XYBlockRenderer r1 = new XYBlockRenderer(); assertTrue(r1 instanceof PublicCloneable); } /** * Serialize an instance, restore it, and check for equality. */ public void testSerialization() { XYBlockRenderer r1 = new XYBlockRenderer(); XYBlockRenderer 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 = (XYBlockRenderer) in.readObject(); in.close(); } catch (Exception e) { e.printStackTrace(); } assertEquals(r1, r2); } /** * A simple test for bug 1766646. */ public void testBug1766646A() { XYBlockRenderer r = new XYBlockRenderer(); Range range = r.findDomainBounds(null); assertTrue(range == null); DefaultXYZDataset emptyDataset = new DefaultXYZDataset(); range = r.findDomainBounds(emptyDataset); assertTrue(range == null); } /** * A simple test for bug 1766646. */ public void testBug1766646B() { XYBlockRenderer r = new XYBlockRenderer(); Range range = r.findRangeBounds(null); assertTrue(range == null); DefaultXYZDataset emptyDataset = new DefaultXYZDataset(); range = r.findRangeBounds(emptyDataset); assertTrue(range == null); } } Other jfreechart examples (source code examples)Here is a short list of links related to this jfreechart XYBlockRendererTests.java source code file: |
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