abstractxyitemrenderertests.java

JFreeChart是做统计图表的,、混合图、甘特图以及一些仪表盘

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2007, 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.]
 *
 * --------------------------------
 * AbstractXYItemRendererTests.java
 * --------------------------------
 * (C) Copyright 2004-2007, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 06-Oct-2004 : Version 1 (DG);
 * 24-Nov-2006 : Added cloning tests (DG);
 *
 */

package org.jfree.chart.renderer.xy.junit;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.jfree.chart.labels.StandardXYSeriesLabelGenerator;
import org.jfree.chart.renderer.xy.AbstractXYItemRenderer;
import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.chart.renderer.xy.XYBarRenderer;
import org.jfree.data.Range;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;

/**
 * Tests for the {@link AbstractXYItemRenderer} class.
 */
public class AbstractXYItemRendererTests extends TestCase {

    /**
     * Returns the tests as a test suite.
     *
     * @return The test suite.
     */
    public static Test suite() {
        return new TestSuite(AbstractXYItemRendererTests.class);
    }

    /**
     * Constructs a new set of tests.
     *
     * @param name  the name of the tests.
     */
    public AbstractXYItemRendererTests(String name) {
        super(name);
    }

    /**
     * Creates a test dataset.
     * 
     * @return A test dataset.
     */
    private XYDataset createDataset1() {
        XYSeries series = new XYSeries("Series");
        series.add(1.0, 1.0);
        series.add(2.0, 2.0);
        series.add(3.0, 3.0);
        XYSeriesCollection dataset = new XYSeriesCollection();
        dataset.addSeries(series);
        return dataset;
    }
    
    private static final double EPSILON = 0.0000000001;
    
    /**
     * Some checks for the findDomainBounds() method.
     */
    public void testFindDomainBounds() {
        AbstractXYItemRenderer renderer = new StandardXYItemRenderer();
        
        // check the bounds of a simple dataset
        XYDataset dataset = createDataset1();
        Range r = renderer.findDomainBounds(dataset);
        assertEquals(1.0, r.getLowerBound(), EPSILON);
        assertEquals(3.0, r.getUpperBound(), EPSILON);
        
        // check that a null dataset returns null bounds
        assertTrue(renderer.findDomainBounds(null) == null);
    }

    /**
     * Some checks for the findRangeBounds() method.
     */
    public void testFindRangeBounds() {
        AbstractXYItemRenderer renderer = new StandardXYItemRenderer();
        // check that a null dataset returns null bounds
        assertTrue(renderer.findRangeBounds(null) == null);
    }
    
    /**
     * Check that the legendItemLabelGenerator is cloned.
     */
    public void testCloning_LegendItemLabelGenerator() {
        StandardXYSeriesLabelGenerator generator 
                = new StandardXYSeriesLabelGenerator("Series {0}");
        XYBarRenderer r1 = new XYBarRenderer();
        r1.setLegendItemLabelGenerator(generator);
        XYBarRenderer r2 = null;
        try {
            r2 = (XYBarRenderer) r1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(r1 != r2);
        assertTrue(r1.getClass() == r2.getClass());
        assertTrue(r1.equals(r2));
        
        // check that the generator has been cloned
        assertTrue(r1.getLegendItemLabelGenerator() 
                != r2.getLegendItemLabelGenerator());
    }

    /**
     * Check that the legendItemToolTipGenerator is cloned.
     */
    public void testCloning_LegendItemToolTipGenerator() {
        StandardXYSeriesLabelGenerator generator 
                = new StandardXYSeriesLabelGenerator("Series {0}");
        XYBarRenderer r1 = new XYBarRenderer();
        r1.setLegendItemToolTipGenerator(generator);
        XYBarRenderer r2 = null;
        try {
            r2 = (XYBarRenderer) r1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(r1 != r2);
        assertTrue(r1.getClass() == r2.getClass());
        assertTrue(r1.equals(r2));
        
        // check that the generator has been cloned
        assertTrue(r1.getLegendItemToolTipGenerator() 
                != r2.getLegendItemToolTipGenerator());
    }

    /**
     * Check that the legendItemURLGenerator is cloned.
     */
    public void testCloning_LegendItemURLGenerator() {
        StandardXYSeriesLabelGenerator generator 
                = new StandardXYSeriesLabelGenerator("Series {0}");
        XYBarRenderer r1 = new XYBarRenderer();
        r1.setLegendItemURLGenerator(generator);
        XYBarRenderer r2 = null;
        try {
            r2 = (XYBarRenderer) r1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(r1 != r2);
        assertTrue(r1.getClass() == r2.getClass());
        assertTrue(r1.equals(r2));
        
        // check that the generator has been cloned
        assertTrue(r1.getLegendItemURLGenerator() 
                != r2.getLegendItemURLGenerator());
    }


}