/* ===========================================================
 
* JFreeChart : a free chart library for the Java(tm) platform
 
* ===========================================================
 
*
 
* (C) Copyright 2000-2016, 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.]
 
*
 
* --------------------------
 
* XYTitleAnnotationTest.java
 
* --------------------------
 
* (C) Copyright 2007-2016, by Object Refinery Limited.
 
*
 
* Original Author:
  
David Gilbert (for Object Refinery Limited);
 
* Contributor(s):
   
-;
 
*
 
* Changes
 
* -------
 
* 30-Apr-2007 : Version 1 (DG);
 
* 26-Feb-2008 : Added testDrawWithNullInfo() (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 org.jfree.chart.JFreeChart;
import org.jfree.chart.TestUtils;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.xy.DefaultTableXYDataset;
import org.jfree.data.xy.XYSeries;
import org.junit.Test;

/**
 
* Tests for the {@link XYTitleAnnotation} class.
 
*/
public class XYTitleAnnotationTest {

    
/**
     
* Confirm that the equals method can distinguish all the required fields.
     
*/

    
@Test
    
public void testEquals() {
        
TextTitle t = new TextTitle("Title");
        
XYTitleAnnotation a1 = new XYTitleAnnotation(1.0, 2.0, t);
        
XYTitleAnnotation a2 = new XYTitleAnnotation(1.0, 2.0, t);
        
assertTrue(a1.equals(a2));
        

        
a1 = new XYTitleAnnotation(1.1, 2.0, t);
        
assertFalse(a1.equals(a2));
        
a2 = new XYTitleAnnotation(1.1, 2.0, t);
        
assertTrue(a1.equals(a2));

        
a1 = new XYTitleAnnotation(1.1, 2.2, t);
        
assertFalse(a1.equals(a2));
        
a2 = new XYTitleAnnotation(1.1, 2.2, t);
        
assertTrue(a1.equals(a2));
        

        
TextTitle t2 = new TextTitle("Title 2");
        
a1 = new XYTitleAnnotation(1.1, 2.2, t2);
        
assertFalse(a1.equals(a2));
        
a2 = new XYTitleAnnotation(1.1, 2.2, t2);
        
assertTrue(a1.equals(a2));
    
}

    
/**
     
* Two objects that are equal are required to return the same hashCode.
 

     
*/

    
@Test
    
public void testHashCode() {
        
TextTitle t = new TextTitle("Title");
        
XYTitleAnnotation a1 = new XYTitleAnnotation(1.0, 2.0, t);
        
XYTitleAnnotation a2 = new XYTitleAnnotation(1.0, 2.0, t);
        
assertTrue(a1.equals(a2));
        
int h1 = a1.hashCode();
        
int h2 = a2.hashCode();
        
assertEquals(h1, h2);
    
}
    

    
/**
     
* Confirm that cloning works.
     
*/
    
@Test
    
public void testCloning() throws CloneNotSupportedException {
        
TextTitle t = new TextTitle("Title");
        
XYTitleAnnotation a1 = new XYTitleAnnotation(1.0, 2.0, t);
        
XYTitleAnnotation a2 = (XYTitleAnnotation) a1.clone();
        
assertTrue(a1 != a2);
        
assertTrue(a1.getClass() == a2.getClass());
        
assertTrue(a1.equals(a2));
    
}

    
/**
     
* Serialize an instance, restore it, and check for equality.
     
*/

    
@Test
    
public void testSerialization() {
        
TextTitle t = new TextTitle("Title");
        
XYTitleAnnotation a1 = new XYTitleAnnotation(1.0, 2.0, t);
        
XYTitleAnnotation a2 = (XYTitleAnnotation) TestUtils.serialised(a1);
        
assertEquals(a1, a2);
    
}
    

    
/**
     
* Draws the chart with a {@code null} info object to make sure that
 

     
* no exceptions are thrown.
     
*/

    
@Test
    
public void testDrawWithNullInfo() {
        
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 XYLineAndShapeRenderer());
            
plot.addAnnotation(new XYTitleAnnotation(5.0, 6.0,
                    
new TextTitle("Hello World!")));
            
JFreeChart chart = new JFreeChart(plot);
            
/* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    
null);
        
}
        
catch (NullPointerException e) {
            
fail("There should be no exception.");
        
}
    
}

}