/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2012, 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.]
 *
 * ------------------------
 * WaterfallChartTests.java
 * ------------------------
 * (C) Copyright 2002-2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes:
 * --------
 * 12-Apr-2005 : Version 1 (DG);
 *
 */

package org.jfree.chart;

import org.jfree.chart.labels.CategoryToolTipGenerator;
import org.jfree.chart.labels.StandardCategoryToolTipGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.chart.urls.CategoryURLGenerator;
import org.jfree.chart.urls.StandardCategoryURLGenerator;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DatasetUtilities;
import org.junit.Before;
import org.junit.Test;

import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;

import static org.junit.Assert.assertSame;

/**
 * Some tests for a waterfall chart.
 */
public class WaterfallChartTest  {

    /** A chart. */
    private JFreeChart chart;





    /**
     * Common test setup.
     */
    @Before
    public void setUp() {
        this.chart = createWaterfallChart();
    }

    /**
     * Draws the chart with a null info object to make sure that no exceptions
     * are thrown (a problem that was occurring at one point).
     */
    @Test
    public void testDrawWithNullInfo() {


        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        this.chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null,
                null);
        g2.dispose();

        //FIXME we should really assert a value here

    }

    /**
     * Check that setting a tool tip generator for a series does override the
     * default generator.
     */
    @Test
    public void testSetSeriesToolTipGenerator() {
        CategoryPlot plot = (CategoryPlot) this.chart.getPlot();
        CategoryItemRenderer renderer = plot.getRenderer();
        StandardCategoryToolTipGenerator tt
                = new StandardCategoryToolTipGenerator();
        renderer.setSeriesToolTipGenerator(0, tt);
        CategoryToolTipGenerator tt2 = renderer.getToolTipGenerator(0, 0);
        assertSame(tt2, tt);
    }

    /**
     * Check that setting a URL generator for a series does override the
     * default generator.
     */
    @Test
    public void testSetSeriesURLGenerator() {
        CategoryPlot plot = (CategoryPlot) this.chart.getPlot();
        CategoryItemRenderer renderer = plot.getRenderer();
        StandardCategoryURLGenerator url1
                = new StandardCategoryURLGenerator();
        renderer.setSeriesItemURLGenerator(0, url1);
        CategoryURLGenerator url2 = renderer.getItemURLGenerator(0, 0);
        assertSame(url2, url1);
    }

    /**
     * Create a bar chart with sample data in the range -3 to +3.
     *
     * @return The chart.
     */
    private static JFreeChart createWaterfallChart() {
        Number[][] data = new Integer[][]
            {{-3, -2},
             {-1, 1},
             {2, 3}};
        CategoryDataset dataset = DatasetUtilities.createCategoryDataset("S",
                "C", data);
        return ChartFactory.createWaterfallChart("Waterfall Chart", "Domain",
                "Range", dataset);
    }

}