/* ===========================================================
* 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.]
*
* ---------------------
* BarRendererTests.java
* ---------------------
* (C) Copyright 2003-2012, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 25-Mar-2003 : Version 1 (DG);
* 19-Aug-2003 : Renamed HorizontalBarRendererTests --> BarRendererTests (DG);
* 22-Oct-2003 : Added hashCode test (DG);
* 18-May-2005 : Added field to equals() test (DG);
* 22-Sep-2005 : Renamed getMaxBarWidth() --> getMaximumBarWidth() (DG);
* 11-May-2007 : Added testGetLegendItem() (DG);
* 23-Apr-2008 : Added testPublicCloneable() (DG);
* 25-Nov-2008 : Added testFindRangeBounds (DG);
* 16-May-2009 : Added series visibility check in testFindRangeBounds() (DG);
* 17-Jun-2012 : Removed JCommon dependencies (DG);
*
*/
package org.jfree.chart.renderer.category;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.LegendItem;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.labels.ItemLabelAnchor;
import org.jfree.chart.labels.ItemLabelPosition;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.renderer.RendererChangeDetector;
import org.jfree.chart.ui.GradientPaintTransformType;
import org.jfree.chart.ui.StandardGradientPaintTransformer;
import org.jfree.chart.ui.TextAnchor;
import org.jfree.chart.util.PublicCloneable;
import org.jfree.data.Range;
import org.jfree.data.category.DefaultCategoryDataset;
import org.junit.Test;
import java.awt.Color;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
/**
* Tests for the {@link BarRenderer} class.
*/
public class BarRendererTest {
/**
* Test that the equals() method distinguishes all fields.
*/
@Test
public void testEquals() {
BarRenderer r1 = new BarRenderer();
BarRenderer r2 = new BarRenderer();
assertEquals(r1, r2);
assertEquals(r2, r1);
// base value
r1.setBase(0.123);
assertFalse(r1.equals(r2));
r2.setBase(0.123);
assertEquals(r1, r2);
// itemMargin
r1.setItemMargin(0.22);
assertFalse(r1.equals(r2));
r2.setItemMargin(0.22);
assertEquals(r1, r2);
// drawBarOutline
r1.setDrawBarOutline(!r1.isDrawBarOutline());
assertFalse(r1.equals(r2));
r2.setDrawBarOutline(!r2.isDrawBarOutline());
assertEquals(r1, r2);
// maximumBarWidth
r1.setMaximumBarWidth(0.11);
assertFalse(r1.equals(r2));
r2.setMaximumBarWidth(0.11);
assertEquals(r1, r2);
// minimumBarLength
r1.setMinimumBarLength(0.04);
assertFalse(r1.equals(r2));
r2.setMinimumBarLength(0.04);
assertEquals(r1, r2);
// gradientPaintTransformer
r1.setGradientPaintTransformer(new StandardGradientPaintTransformer(
GradientPaintTransformType.CENTER_VERTICAL));
assertFalse(r1.equals(r2));
r2.setGradientPaintTransformer(new StandardGradientPaintTransformer(
GradientPaintTransformType.CENTER_VERTICAL));
assertEquals(r1, r2);
// positiveItemLabelPositionFallback
r1.setPositiveItemLabelPositionFallback(new ItemLabelPosition(
ItemLabelAnchor.INSIDE1, TextAnchor.CENTER));
assertFalse(r1.equals(r2));
r2.setPositiveItemLabelPositionFallback(new ItemLabelPosition(
ItemLabelAnchor.INSIDE1, TextAnchor.CENTER));
assertEquals(r1, r2);
// negativeItemLabelPositionFallback
r1.setNegativeItemLabelPositionFallback(new ItemLabelPosition(
ItemLabelAnchor.INSIDE1, TextAnchor.CENTER));
assertFalse(r1.equals(r2));
r2.setNegativeItemLabelPositionFallback(new ItemLabelPosition(
ItemLabelAnchor.INSIDE1, TextAnchor.CENTER));
assertEquals(r1, r2);
// barPainter
r1.setBarPainter(new GradientBarPainter(0.1, 0.2, 0.3));
assertFalse(r1.equals(r2));
r2.setBarPainter(new GradientBarPainter(0.1, 0.2, 0.3));
assertEquals(r1, r2);
// shadowsVisible
r1.setShadowVisible(false);
assertFalse(r1.equals(r2));
r2.setShadowVisible(false);
assertEquals(r1, r2);
r1.setShadowPaint(Color.RED);
assertFalse(r1.equals(r2));
r2.setShadowPaint(Color.RED);
assertEquals(r1, r2);
// shadowXOffset
r1.setShadowXOffset(3.3);
assertFalse(r1.equals(r2));
r2.setShadowXOffset(3.3);
assertEquals(r1, r2);
// shadowYOffset
r1.setShadowYOffset(3.3);
assertFalse(r1.equals(r2));
r2.setShadowYOffset(3.3);
assertEquals(r1, r2);
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
@Test
public void testHashcode() {
BarRenderer r1 = new BarRenderer();
BarRenderer r2 = new BarRenderer();
assertEquals(r1, r2);
int h1 = r1.hashCode();
int h2 = r2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
BarRenderer r1 = new BarRenderer();
r1.setDefaultItemLabelGenerator(new StandardCategoryItemLabelGenerator());
r1.setBarPainter(new GradientBarPainter(0.11, 0.22, 0.33));
BarRenderer r2 = (BarRenderer) r1.clone();
assertNotSame(r1, r2);
assertSame(r1.getClass(), r2.getClass());
assertEquals(r1, r2);
}
/**
* Check that this class implements PublicCloneable.
*/
@Test
public void testPublicCloneable() {
BarRenderer r1 = new BarRenderer();
assertTrue(r1 instanceof PublicCloneable);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
BarRenderer r1 = new BarRenderer();
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(r1);
out.close();
ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
buffer.toByteArray()));
BarRenderer r2 = (BarRenderer) in.readObject();
in.close();
assertEquals(r1, r2);
}
/**
* Tests each setter method to ensure that it sends an event notification.
*/
@Test
public void testEventNotification() {
RendererChangeDetector detector = new RendererChangeDetector();
BarRenderer r1 = new BarRenderer();
r1.addChangeListener(detector);
detector.setNotified(false);
r1.setDefaultPaint(Color.RED);
assertTrue(detector.getNotified());
}
/**
* Some checks for the getLegendItem() method.
*/
@Test
public void testGetLegendItem() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(21.0, "R1", "C1");
BarRenderer r = new BarRenderer();
CategoryPlot plot = new CategoryPlot(dataset, new CategoryAxis("x"),
new NumberAxis("y"), r);
/*JFreeChart chart =*/ new JFreeChart(plot);
LegendItem li = r.getLegendItem(0, 0);
assertNotNull(li);
r.setSeriesVisibleInLegend(0, Boolean.FALSE);
li = r.getLegendItem(0, 0);
assertNull(li);
}
/**
* A check for the datasetIndex and seriesIndex fields in the LegendItem
* returned by the getLegendItem() method.
*/
@Test
public void testGetLegendItemSeriesIndex() {
DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
dataset0.addValue(21.0, "R1", "C1");
dataset0.addValue(22.0, "R2", "C1");
DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
dataset1.addValue(23.0, "R3", "C1");
dataset1.addValue(24.0, "R4", "C1");
dataset1.addValue(25.0, "R5", "C1");
BarRenderer r = new BarRenderer();
CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
new NumberAxis("y"), r);
plot.setDataset(1, dataset1);
/*JFreeChart chart =*/ new JFreeChart(plot);
LegendItem li = r.getLegendItem(1, 2);
assertEquals("R5", li.getLabel());
assertEquals(1, li.getDatasetIndex());
assertEquals(2, li.getSeriesIndex());
}
/**
* Some checks for the findRangeBounds() method.
*/
@Test
public void testFindRangeBounds() {
BarRenderer r = new BarRenderer();
assertNull(r.findRangeBounds(null));
// an empty dataset should return a null range
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
assertNull(r.findRangeBounds(dataset));
dataset.addValue(1.0, "R1", "C1");
assertEquals(new Range(0.0, 1.0), r.findRangeBounds(dataset));
r.setIncludeBaseInRange(false);
assertEquals(new Range(1.0, 1.0), r.findRangeBounds(dataset));
r.setIncludeBaseInRange(true);
dataset.addValue(-2.0, "R1", "C2");
assertEquals(new Range(-2.0, 1.0), r.findRangeBounds(dataset));
dataset.addValue(null, "R1", "C3");
assertEquals(new Range(-2.0, 1.0), r.findRangeBounds(dataset));
dataset.addValue(-6.0, "R2", "C1");
assertEquals(new Range(-6.0, 1.0), r.findRangeBounds(dataset));
r.setSeriesVisible(1, Boolean.FALSE);
assertEquals(new Range(-2.0, 1.0), r.findRangeBounds(dataset));
}
}