/* ===========================================================
* 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.]
*
* --------------------
* NumberAxisTests.java
* --------------------
* (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 26-Mar-2003 : Version 1 (DG);
* 14-Aug-2003 : Added tests for equals() method (DG);
* 05-Oct-2004 : Added tests to pick up a bug in the auto-range calculation for
* a domain axis on an XYPlot using an XYSeriesCollection (DG);
* 07-Jan-2005 : Added test for hashCode() (DG);
* 11-Jan-2006 : Fixed testAutoRange2() and testAutoRange3() following changes
* to BarRenderer (DG);
* 20-Feb-2006 : Added rangeType field to equals() test (DG);
*
*/
package org.jfree.chart.axis;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.ui.RectangleEdge;
import org.jfree.data.Range;
import org.jfree.data.RangeType;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.junit.Ignore;
import org.junit.Test;
import java.awt.geom.Rectangle2D;
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 java.text.DecimalFormat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.fail;
/**
* Tests for the {@link NumberAxis} class.
*/
public class NumberAxisTest {
/**
* Confirm that cloning works.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
NumberAxis a1 = new NumberAxis("Test");
NumberAxis a2 = (NumberAxis) a1.clone();
assertNotSame(a1, a2);
assertSame(a1.getClass(), a2.getClass());
assertEquals(a1, a2);
}
/**
* Confirm that the equals method can distinguish all the required fields.
*/
@Test
public void testEquals() {
NumberAxis a1 = new NumberAxis("Test");
NumberAxis a2 = new NumberAxis("Test");
assertEquals(a1, a2);
//private boolean autoRangeIncludesZero;
a1.setAutoRangeIncludesZero(false);
assertFalse(a1.equals(a2));
a2.setAutoRangeIncludesZero(false);
assertEquals(a1, a2);
//private boolean autoRangeStickyZero;
a1.setAutoRangeStickyZero(false);
assertFalse(a1.equals(a2));
a2.setAutoRangeStickyZero(false);
assertEquals(a1, a2);
//private NumberTickUnit tickUnit;
a1.setTickUnit(new NumberTickUnit(25.0));
assertFalse(a1.equals(a2));
a2.setTickUnit(new NumberTickUnit(25.0));
assertEquals(a1, a2);
//private NumberFormat numberFormatOverride;
a1.setNumberFormatOverride(new DecimalFormat("0.00"));
assertFalse(a1.equals(a2));
a2.setNumberFormatOverride(new DecimalFormat("0.00"));
assertEquals(a1, a2);
a1.setRangeType(RangeType.POSITIVE);
assertFalse(a1.equals(a2));
a2.setRangeType(RangeType.POSITIVE);
assertEquals(a1, a2);
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
@Test
public void testHashCode() {
NumberAxis a1 = new NumberAxis("Test");
NumberAxis a2 = new NumberAxis("Test");
assertEquals(a1, a2);
int h1 = a1.hashCode();
int h2 = a2.hashCode();
assertEquals(h1, h2);
}
private static final double EPSILON = 0.0000001;
/**
* Test the translation of Java2D values to data values.
*/
@Test
public void testTranslateJava2DToValue() {
NumberAxis axis = new NumberAxis();
axis.setRange(50.0, 100.0);
Rectangle2D dataArea = new Rectangle2D.Double(10.0, 50.0, 400.0, 300.0);
double y1 = axis.java2DToValue(75.0, dataArea, RectangleEdge.LEFT);
assertEquals(y1, 95.8333333, EPSILON);
double y2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);
assertEquals(y2, 95.8333333, EPSILON);
double x1 = axis.java2DToValue(75.0, dataArea, RectangleEdge.TOP);
assertEquals(x1, 58.125, EPSILON);
double x2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.BOTTOM);
assertEquals(x2, 58.125, EPSILON);
axis.setInverted(true);
double y3 = axis.java2DToValue(75.0, dataArea, RectangleEdge.LEFT);
assertEquals(y3, 54.1666667, EPSILON);
double y4 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);
assertEquals(y4, 54.1666667, EPSILON);
double x3 = axis.java2DToValue(75.0, dataArea, RectangleEdge.TOP);
assertEquals(x3, 91.875, EPSILON);
double x4 = axis.java2DToValue(75.0, dataArea, RectangleEdge.BOTTOM);
assertEquals(x4, 91.875, EPSILON);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
NumberAxis a1 = new NumberAxis("Test Axis");
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(a1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
NumberAxis a2 = (NumberAxis) in.readObject();
in.close();
assertEquals(a1, a2);
}
/**
* A simple test for the auto-range calculation looking at a
* NumberAxis used as the range axis for a CategoryPlot.
*/
@Test
public void testAutoRange1() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.setValue(100.0, "Row 1", "Column 1");
dataset.setValue(200.0, "Row 1", "Column 2");
JFreeChart chart = ChartFactory.createBarChart("Test",
"Categories", "Value", dataset);
CategoryPlot plot = (CategoryPlot) chart.getPlot();
NumberAxis axis = (NumberAxis) plot.getRangeAxis();
assertEquals(axis.getLowerBound(), 0.0, EPSILON);
assertEquals(axis.getUpperBound(), 210.0, EPSILON);
}
/**
* A simple test for the auto-range calculation looking at a
* NumberAxis used as the range axis for a CategoryPlot. In this
* case, the 'autoRangeIncludesZero' flag is set to false.
*/
@Test
public void testAutoRange2() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.setValue(100.0, "Row 1", "Column 1");
dataset.setValue(200.0, "Row 1", "Column 2");
JFreeChart chart = ChartFactory.createLineChart("Test", "Categories",
"Value", dataset);
CategoryPlot plot = (CategoryPlot) chart.getPlot();
NumberAxis axis = (NumberAxis) plot.getRangeAxis();
axis.setAutoRangeIncludesZero(false);
assertEquals(axis.getLowerBound(), 95.0, EPSILON);
assertEquals(axis.getUpperBound(), 205.0, EPSILON);
}
/**
* A simple test for the auto-range calculation looking at a
* NumberAxis used as the range axis for a CategoryPlot. In this
* case, the 'autoRangeIncludesZero' flag is set to false AND the
* original dataset is replaced with a new dataset.
*/
@Test
public void testAutoRange3() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.setValue(100.0, "Row 1", "Column 1");
dataset.setValue(200.0, "Row 1", "Column 2");
JFreeChart chart = ChartFactory.createLineChart("Test", "Categories",
"Value", dataset);
CategoryPlot plot = (CategoryPlot) chart.getPlot();
NumberAxis axis = (NumberAxis) plot.getRangeAxis();
axis.setAutoRangeIncludesZero(false);
assertEquals(axis.getLowerBound(), 95.0, EPSILON);
assertEquals(axis.getUpperBound(), 205.0, EPSILON);
// now replacing the dataset should update the axis range...
DefaultCategoryDataset dataset2 = new DefaultCategoryDataset();
dataset2.setValue(900.0, "Row 1", "Column 1");
dataset2.setValue(1000.0, "Row 1", "Column 2");
plot.setDataset(dataset2);
assertEquals(axis.getLowerBound(), 895.0, EPSILON);
assertEquals(axis.getUpperBound(), 1005.0, EPSILON);
}
/**
* A check for the interaction between the 'autoRangeIncludesZero' flag
* and the base setting in the BarRenderer.
*/
@Test
public void testAutoRange4() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.setValue(100.0, "Row 1", "Column 1");
dataset.setValue(200.0, "Row 1", "Column 2");
JFreeChart chart = ChartFactory.createBarChart("Test", "Categories",
"Value", dataset);
CategoryPlot plot = (CategoryPlot) chart.getPlot();
NumberAxis axis = (NumberAxis) plot.getRangeAxis();
axis.setAutoRangeIncludesZero(false);
BarRenderer br = (BarRenderer) plot.getRenderer();
br.setIncludeBaseInRange(false);
assertEquals(95.0, axis.getLowerBound(), EPSILON);
assertEquals(205.0, axis.getUpperBound(), EPSILON);
br.setIncludeBaseInRange(true);
assertEquals(0.0, axis.getLowerBound(), EPSILON);
assertEquals(210.0, axis.getUpperBound(), EPSILON);
axis.setAutoRangeIncludesZero(true);
assertEquals(0.0, axis.getLowerBound(), EPSILON);
assertEquals(210.0, axis.getUpperBound(), EPSILON);
br.setIncludeBaseInRange(true);
assertEquals(0.0, axis.getLowerBound(), EPSILON);
assertEquals(210.0, axis.getUpperBound(), EPSILON);
// now replacing the dataset should update the axis range...
DefaultCategoryDataset dataset2 = new DefaultCategoryDataset();
dataset2.setValue(900.0, "Row 1", "Column 1");
dataset2.setValue(1000.0, "Row 1", "Column 2");
plot.setDataset(dataset2);
assertEquals(0.0, axis.getLowerBound(), EPSILON);
assertEquals(1050.0, axis.getUpperBound(), EPSILON);
br.setIncludeBaseInRange(false);
assertEquals(0.0, axis.getLowerBound(), EPSILON);
assertEquals(1050.0, axis.getUpperBound(), EPSILON);
axis.setAutoRangeIncludesZero(false);
assertEquals(895.0, axis.getLowerBound(), EPSILON);
assertEquals(1005.0, axis.getUpperBound(), EPSILON);
}
/**
* Checks that the auto-range for the domain axis on an XYPlot is
* working as expected.
*/
@Test
public void testXYAutoRange1() {
XYSeries series = new XYSeries("Series 1");
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);
JFreeChart chart = ChartFactory.createScatterPlot("Test", "X", "Y",
dataset);
XYPlot plot = (XYPlot) chart.getPlot();
NumberAxis axis = (NumberAxis) plot.getDomainAxis();
axis.setAutoRangeIncludesZero(false);
assertEquals(0.9, axis.getLowerBound(), EPSILON);
assertEquals(3.1, axis.getUpperBound(), EPSILON);
}
/**
* Checks that the auto-range for the range axis on an XYPlot is
* working as expected.
*/
@Test
public void testXYAutoRange2() {
XYSeries series = new XYSeries("Series 1");
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);
JFreeChart chart = ChartFactory.createScatterPlot("Test", "X", "Y",
dataset);
XYPlot plot = (XYPlot) chart.getPlot();
NumberAxis axis = (NumberAxis) plot.getRangeAxis();
axis.setAutoRangeIncludesZero(false);
assertEquals(0.9, axis.getLowerBound(), EPSILON);
assertEquals(3.1, axis.getUpperBound(), EPSILON);
}
/**
* Some checks for the setRangeType() method.
*/
@Ignore("This was previously commented out")
@Test
public void testSetRangeType() {
NumberAxis axis = new NumberAxis("X");
axis.setRangeType(RangeType.POSITIVE);
assertEquals(RangeType.POSITIVE, axis.getRangeType());
// test a change to RangeType.POSITIVE
axis.setRangeType(RangeType.FULL);
axis.setRange(-5.0, 5.0);
axis.setRangeType(RangeType.POSITIVE);
assertEquals(new Range(0.0, 5.0), axis.getRange());
axis.setRangeType(RangeType.FULL);
axis.setRange(-10.0, -5.0);
axis.setRangeType(RangeType.POSITIVE);
assertEquals(new Range(0.0, axis.getAutoRangeMinimumSize()),
axis.getRange());
// test a change to RangeType.NEGATIVE
axis.setRangeType(RangeType.FULL);
axis.setRange(-5.0, 5.0);
axis.setRangeType(RangeType.NEGATIVE);
assertEquals(new Range(-5.0, 0.0), axis.getRange());
axis.setRangeType(RangeType.FULL);
axis.setRange(5.0, 10.0);
axis.setRangeType(RangeType.NEGATIVE);
assertEquals(new Range(-axis.getAutoRangeMinimumSize(), 0.0),
axis.getRange());
// try null
try {
axis.setRangeType(null);
fail("IllegalArgumentException should have been thrown on null parameter");
}
catch (IllegalArgumentException e) {
assertEquals("Null 'rangeType' argument.", e.getMessage());
}
}
/**
* Some checks for the setLowerBound() method.
*/
@Test
public void testSetLowerBound() {
NumberAxis axis = new NumberAxis("X");
axis.setRange(0.0, 10.0);
axis.setLowerBound(5.0);
assertEquals(5.0, axis.getLowerBound(), EPSILON);
axis.setLowerBound(10.0);
assertEquals(10.0, axis.getLowerBound(), EPSILON);
assertEquals(11.0, axis.getUpperBound(), EPSILON);
//axis.setRangeType(RangeType.POSITIVE);
//axis.setLowerBound(-5.0);
//assertEquals(0.0, axis.getLowerBound(), EPSILON);
}
}