/* ===========================================================
* 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.]
*
* -----------------------
* TextAnnotationTest.java
* -----------------------
* (C) Copyright 2003-2013, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): Martin Hoeller;
*
* Changes
* -------
* 19-Aug-2003 : Version 1 (DG);
* 07-Jan-2005 : Added testHashCode() method (DG);
* 28-Oct-2011 : Added testSetRotationAnchor() method for bug #3428870 (MH);
* 01-Jul-2013 : Added testChangeEvents() (DG);
*
*/
package org.jfree.chart.annotations;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.fail;
import static org.junit.Assert.assertNotNull;
import java.awt.Color;
import java.awt.Font;
import java.awt.GradientPaint;
import org.jfree.chart.event.AnnotationChangeEvent;
import org.jfree.chart.event.AnnotationChangeListener;
import org.jfree.ui.TextAnchor;
import org.junit.Test;
/**
* Tests for the {@link TextAnnotation} class.
*/
public class TextAnnotationTest implements AnnotationChangeListener {
/**
* Confirm that the equals method can distinguish all the required fields.
*/
@Test
public void testEquals() {
TextAnnotation a1 = new CategoryTextAnnotation("Test", "Category", 1.0);
TextAnnotation a2 = new CategoryTextAnnotation("Test", "Category", 1.0);
assertTrue(a1.equals(a2));
// text
a1.setText("Text");
assertFalse(a1.equals(a2));
a2.setText("Text");
assertTrue(a1.equals(a2));
// font
a1.setFont(new Font("Serif", Font.BOLD, 18));
assertFalse(a1.equals(a2));
a2.setFont(new Font("Serif", Font.BOLD, 18));
assertTrue(a1.equals(a2));
// paint
a1.setPaint(new GradientPaint(1.0f, 2.0f, Color.red,
3.0f, 4.0f, Color.pink));
assertFalse(a1.equals(a2));
a2.setPaint(new GradientPaint(1.0f, 2.0f, Color.red,
3.0f, 4.0f, Color.pink));
assertTrue(a1.equals(a2));
// textAnchor
a1.setTextAnchor(TextAnchor.BOTTOM_LEFT);
assertFalse(a1.equals(a2));
a2.setTextAnchor(TextAnchor.BOTTOM_LEFT);
assertTrue(a1.equals(a2));
// rotationAnchor
a1.setRotationAnchor(TextAnchor.BOTTOM_LEFT);
assertFalse(a1.equals(a2));
a2.setRotationAnchor(TextAnchor.BOTTOM_LEFT);
assertTrue(a1.equals(a2));
// rotationAngle
a1.setRotationAngle(Math.PI);
assertFalse(a1.equals(a2));
a2.setRotationAngle(Math.PI);
assertTrue(a1.equals(a2));
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
@Test
public void testHashCode() {
TextAnnotation a1 = new CategoryTextAnnotation("Test", "Category", 1.0);
TextAnnotation a2 = new CategoryTextAnnotation("Test", "Category", 1.0);
assertTrue(a1.equals(a2));
int h1 = a1.hashCode();
int h2 = a2.hashCode();
assertEquals(h1, h2);
}
/**
* Test null-argument (Bug #3428870).
*/
@Test
public void testSetRotationAnchor() {
TextAnnotation a = new CategoryTextAnnotation("Test", "Category", 1.0);
try {
a.setRotationAnchor(null);
fail("Should have thrown Exception.");
} catch (IllegalArgumentException e) {
// ok, exception is expected
}
}
/**
* Some tests to ensure that change events are generated as expected.
*/
@Test
public void testChangeEvents() {
TextAnnotation a = new CategoryTextAnnotation("Test", "A", 1.0);
a.addChangeListener(this);
this.lastEvent = null;
a.setText("B");
assertNotNull(this.lastEvent);
this.lastEvent = null;
a.setText("B");
assertNotNull(this.lastEvent);
this.lastEvent = null;
a.setFont(new Font("SansSerif", Font.PLAIN, 12));
assertNotNull(this.lastEvent);
this.lastEvent = null;
a.setPaint(Color.BLUE);
assertNotNull(this.lastEvent);
this.lastEvent = null;
a.setTextAnchor(TextAnchor.CENTER_LEFT);
assertNotNull(this.lastEvent);
this.lastEvent = null;
a.setRotationAnchor(TextAnchor.CENTER_LEFT);
assertNotNull(this.lastEvent);
this.lastEvent = null;
a.setRotationAngle(123.4);
assertNotNull(this.lastEvent);
}
private AnnotationChangeEvent lastEvent;
/**
* Receives notification of a change to an annotation.
*
* @param event the event.
*/
@Override
public void annotationChanged(AnnotationChangeEvent event) {
this.lastEvent = event;
}
}