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- /* ===========================================================
- * 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.]
- *
- * -----------------------
- * GrayPaintScaleTest.java
- * -----------------------
- * (C) Copyright 2006-2013, by Object Refinery Limited and Contributors.
- *
- * Original Author: David Gilbert (for Object Refinery Limited);
- * Contributor(s): -;
- *
- * Changes
- * -------
- * 05-Jul-2006 : Version 1 (DG);
- * 26-Sep-2007 : Added testConstructor() and testGetPaint() (DG);
- * 29-Jan-2009 : Extended testEquals() for new alpha field (DG);
- *
- */
- package org.jfree.chart.renderer;
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertFalse;
- import static org.junit.Assert.assertTrue;
- import java.awt.Color;
- import org.jfree.chart.TestUtilities;
- import org.junit.Test;
- /**
- * Tests for the {@link GrayPaintScale} class.
- */
- public class GrayPaintScaleTest {
- private static final double EPSILON = 0.000000001;
- /**
- * Simple check for the default constructor.
- */
- @Test
- public void testConstructor() {
- GrayPaintScale gps = new GrayPaintScale();
- assertEquals(0.0, gps.getLowerBound(), EPSILON);
- assertEquals(1.0, gps.getUpperBound(), EPSILON);
- assertEquals(255, gps.getAlpha());
- }
- /**
- * Some checks for the getPaint() method.
- */
- @Test
- public void testGetPaint() {
- GrayPaintScale gps = new GrayPaintScale();
- Color c = (Color) gps.getPaint(0.0);
- assertTrue(c.equals(Color.black));
- c = (Color) gps.getPaint(1.0);
- assertTrue(c.equals(Color.white));
- // check lookup values that are outside the bounds - see bug report
- // 1767315
- c = (Color) gps.getPaint(-0.5);
- assertTrue(c.equals(Color.black));
- c = (Color) gps.getPaint(1.5);
- assertTrue(c.equals(Color.white));
- }
- /**
- * A test for the equals() method.
- */
- @Test
- public void testEquals() {
- GrayPaintScale g1 = new GrayPaintScale();
- GrayPaintScale g2 = new GrayPaintScale();
- assertTrue(g1.equals(g2));
- assertTrue(g2.equals(g1));
- g1 = new GrayPaintScale(0.0, 1.0);
- g2 = new GrayPaintScale(0.0, 1.0);
- assertTrue(g1.equals(g2));
- g1 = new GrayPaintScale(0.1, 1.0);
- assertFalse(g1.equals(g2));
- g2 = new GrayPaintScale(0.1, 1.0);
- assertTrue(g1.equals(g2));
- g1 = new GrayPaintScale(0.1, 0.9);
- assertFalse(g1.equals(g2));
- g2 = new GrayPaintScale(0.1, 0.9);
- assertTrue(g1.equals(g2));
- g1 = new GrayPaintScale(0.1, 0.9, 128);
- assertFalse(g1.equals(g2));
- g2 = new GrayPaintScale(0.1, 0.9, 128);
- assertTrue(g1.equals(g2));
- }
- /**
- * Confirm that cloning works.
- */
- @Test
- public void testCloning() throws CloneNotSupportedException {
- GrayPaintScale g1 = new GrayPaintScale();
- GrayPaintScale g2 = (GrayPaintScale) g1.clone();
- assertTrue(g1 != g2);
- assertTrue(g1.getClass() == g2.getClass());
- assertTrue(g1.equals(g2));
- }
- /**
- * Serialize an instance, restore it, and check for equality.
- */
- @Test
- public void testSerialization() {
- GrayPaintScale g1 = new GrayPaintScale();
- GrayPaintScale g2 = (GrayPaintScale) TestUtilities.serialised(g1);
- assertEquals(g1, g2);
- }
- }
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