/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2014, 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.]
*
* -----------------
* LogAxisTests.java
* -----------------
* (C) Copyright 2007-2014, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 11-Jul-2007 : Version 1 (DG);
* 08-Apr-2008 : Fixed incorrect testEquals() method (DG);
* 28-Oct-2011 : Added test for endless loop, # 3429707 (MH);
* 17-Jun-2012 : Removed JCommon dependencies (DG);
*
*/
package org.jfree.chart.axis;
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.assertTrue;
import org.junit.Test;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
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.ui.RectangleEdge;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.chart.TestUtils;
/**
* Tests for the {@link LogAxis} class.
*/
public class LogAxisTest {
/**
* Confirm that cloning works.
* @throws CloneNotSupportedException
*/
@Test
public void testCloning() throws CloneNotSupportedException {
LogAxis a1 = new LogAxis("Test");
LogAxis a2 = (LogAxis) 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() {
LogAxis a1 = new LogAxis("Test");
LogAxis a2 = new LogAxis("Test");
assertEquals(a1, a2);
a1.setBase(2.0);
assertFalse(a1.equals(a2));
a2.setBase(2.0);
assertEquals(a1, a2);
a1.setSmallestValue(0.1);
assertFalse(a1.equals(a2));
a2.setSmallestValue(0.1);
assertEquals(a1, a2);
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
@Test
public void testHashCode() {
LogAxis a1 = new LogAxis("Test");
LogAxis a2 = new LogAxis("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() {
LogAxis axis = new LogAxis();
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(94.3874312681693, y1, EPSILON);
double y2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);
assertEquals(94.3874312681693, y2, EPSILON);
double x1 = axis.java2DToValue(75.0, dataArea, RectangleEdge.TOP);
assertEquals(55.961246381405, x1, EPSILON);
double x2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.BOTTOM);
assertEquals(55.961246381405, x2, EPSILON);
axis.setInverted(true);
double y3 = axis.java2DToValue(75.0, dataArea, RectangleEdge.LEFT);
assertEquals(52.9731547179647, y3, EPSILON);
double y4 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);
assertEquals(52.9731547179647, y4, EPSILON);
double x3 = axis.java2DToValue(75.0, dataArea, RectangleEdge.TOP);
assertEquals(89.3475453695651, x3, EPSILON);
double x4 = axis.java2DToValue(75.0, dataArea, RectangleEdge.BOTTOM);
assertEquals(89.3475453695651, x4, EPSILON);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() {
LogAxis a1 = new LogAxis("Test Axis");
LogAxis a2 = (LogAxis) TestUtils.serialised(a1);
assertEquals(a1, a2);
}
/**
* A simple test for the auto-range calculation looking at a
* LogAxis 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();
LogAxis axis = new LogAxis("Log(Y)");
plot.setRangeAxis(axis);
assertEquals(0.0, axis.getLowerBound(), EPSILON);
assertEquals(2.6066426411261268E7, axis.getUpperBound(), 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 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();
LogAxis axis = new LogAxis("Log(Y)");
plot.setRangeAxis(axis);
assertEquals(96.59363289248458, axis.getLowerBound(), EPSILON);
assertEquals(207.0529847682752, 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(895.2712433374774, axis.getLowerBound(), EPSILON);
assertEquals(1005.2819262292991, 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();
LogAxis axis = new LogAxis("Log(Y)");
plot.setRangeAxis(axis);
assertEquals(0.9465508226401592, axis.getLowerBound(), EPSILON);
assertEquals(3.1694019256486126, 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();
LogAxis axis = new LogAxis("Log(Y)");
plot.setRangeAxis(axis);
assertEquals(0.9465508226401592, axis.getLowerBound(), EPSILON);
assertEquals(3.1694019256486126, axis.getUpperBound(), EPSILON);
}
/**
* Some checks for the setLowerBound() method.
*/
@Test
public void testSetLowerBound() {
LogAxis axis = new LogAxis("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);
}
/**
* Checks the default value for the tickMarksVisible flag.
*/
@Test
public void testTickMarksVisibleDefault() {
LogAxis axis = new LogAxis("Log Axis");
assertTrue(axis.isTickMarksVisible());
}
/**
* Checks that a TickUnit with a size of 0 doesn't crash.
*/
@Test
public void testrefreshTicksWithZeroTickUnit() {
LogAxis axis = new LogAxis();
AxisState state = new AxisState();
BufferedImage image = new BufferedImage(200, 100,
BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = image.createGraphics();
Rectangle2D area = new Rectangle2D.Double(0.0, 0.0, 200, 100);
axis.refreshTicks(g2, state, area, RectangleEdge.TOP);
}
}