/* ===========================================================
* 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.]
*
* --------------------
* ImageTitleTests.java
* --------------------
* (C) Copyright 2004-2013, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 17-Feb-2004 : Version 1 (DG);
* 21-Mar-2008 : Added tests for arrange method (DG);
*
*/
package org.jfree.chart.title;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.ui.Size2D;
import org.junit.Test;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import javax.swing.ImageIcon;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
/**
* Tests for the {@link ImageTitle} class.
*/
public class ImageTitleTest {
private Image testImage;
private Image getTestImage() {
if (testImage == null) {
URL imageURL = getClass().getClassLoader().getResource(
"org/jfree/chart/gorilla.jpg");
if (imageURL != null) {
ImageIcon temp = new ImageIcon(imageURL);
// use ImageIcon because it waits for the image to load...
testImage = temp.getImage();
}
}
return testImage;
}
/**
* Check that the equals() method distinguishes all fields.
*/
@Test
public void testEquals() {
ImageTitle t1 = new ImageTitle(getTestImage());
ImageTitle t2 = new ImageTitle(getTestImage());
assertEquals(t1, t2);
t1.setImage(new BufferedImage(2, 1, BufferedImage.TYPE_INT_RGB));
assertFalse(t1.equals(t2));
t2.setImage(new BufferedImage(2, 1, BufferedImage.TYPE_INT_RGB));
// images considered equal only if they're the SAME object
// TODO: is there a way to do a better test?
assertFalse(t1.equals(t2));
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
@Test
public void testHashcode() {
ImageTitle t1 = new ImageTitle(getTestImage());
ImageTitle t2 = new ImageTitle(getTestImage());
assertEquals(t1, t2);
int h1 = t1.hashCode();
int h2 = t2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
ImageTitle t1 = new ImageTitle(getTestImage());
ImageTitle t2 = (ImageTitle) t1.clone();
assertNotSame(t1, t2);
assertSame(t1.getClass(), t2.getClass());
assertEquals(t1, t2);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
// TODO: add serialization support for images
}
private static final double EPSILON = 0.00000001;
/**
* Check the width and height.
*/
@Test
public void testWidthAndHeight() {
ImageTitle t1 = new ImageTitle(getTestImage());
assertEquals(100, t1.getWidth(), EPSILON);
assertEquals(100, t1.getHeight(), EPSILON);
}
/**
* Some checks for the arrange method.
*/
@Test
public void testArrangeNN() {
BufferedImage image = new BufferedImage(100, 100,
BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
ImageTitle t = new ImageTitle(getTestImage());
Size2D s = t.arrange(g2);
assertEquals(102.0, s.getWidth(), EPSILON);
assertEquals(102.0, s.getHeight(), EPSILON);
t.setPadding(1.0, 2.0, 3.0, 4.0);
s = t.arrange(g2);
assertEquals(106.0, s.getWidth(), EPSILON);
assertEquals(104.0, s.getHeight(), EPSILON);
t.setMargin(5.0, 6.0, 7.0, 8.0);
s = t.arrange(g2);
assertEquals(120.0, s.getWidth(), EPSILON);
assertEquals(116.0, s.getHeight(), EPSILON);
}
}