/* ===========================================================
* 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.]
*
* ------------------------------
* CategoryToPieDatasetTests.java
* ------------------------------
* (C) Copyright 2006-2012, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 26-Jul-2006 : Version 1 (DG);
* 01-Aug-2006 : Added testGetIndex() method (DG);
* 17-Jun-2012 : Remove JCommon dependencies (DG);
*
*/
package org.jfree.data.category;
import org.jfree.chart.util.TableOrder;
import org.jfree.data.general.DefaultPieDataset;
import org.junit.Test;
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.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* Tests for the {@link CategoryToPieDataset} class.
*/
public class CategoryToPieDatasetTest {
/**
* Some tests for the constructor.
*/
@Test
public void testConstructor() {
// try a null source
CategoryToPieDataset p1 = new CategoryToPieDataset(null,
TableOrder.BY_COLUMN, 0);
assertNull(p1.getUnderlyingDataset());
assertEquals(p1.getItemCount(), 0);
assertTrue(p1.getKeys().isEmpty());
assertNull(p1.getValue("R1"));
}
/**
* Some checks for the getValue() method.
*/
@Test
public void testGetValue() {
DefaultCategoryDataset underlying = new DefaultCategoryDataset();
underlying.addValue(1.1, "R1", "C1");
underlying.addValue(2.2, "R1", "C2");
CategoryToPieDataset d1 = new CategoryToPieDataset(underlying,
TableOrder.BY_ROW, 0);
assertEquals(d1.getValue("C1"), 1.1);
assertEquals(d1.getValue("C2"), 2.2);
// check negative index throws exception
try {
/* Number n = */ d1.getValue(-1);
fail("Expected IndexOutOfBoundsException.");
}
catch (IndexOutOfBoundsException e) {
// this is expected
}
// check index == getItemCount() throws exception
try {
/* Number n = */ d1.getValue(d1.getItemCount());
fail("Expected IndexOutOfBoundsException.");
}
catch (IndexOutOfBoundsException e) {
// this is expected
}
// test null source
CategoryToPieDataset p1 = new CategoryToPieDataset(null,
TableOrder.BY_COLUMN, 0);
try {
/* Number n = */ p1.getValue(0);
fail("Expected IndexOutOfBoundsException.");
}
catch (IndexOutOfBoundsException e) {
// this is expected
}
}
/**
* Some checks for the getKey(int) method.
*/
@Test
public void testGetKey() {
DefaultCategoryDataset underlying = new DefaultCategoryDataset();
underlying.addValue(1.1, "R1", "C1");
underlying.addValue(2.2, "R1", "C2");
CategoryToPieDataset d1 = new CategoryToPieDataset(underlying,
TableOrder.BY_ROW, 0);
assertEquals(d1.getKey(0), "C1");
assertEquals(d1.getKey(1), "C2");
// check negative index throws exception
try {
/* Number n = */ d1.getKey(-1);
fail("Expected IndexOutOfBoundsException.");
}
catch (IndexOutOfBoundsException e) {
// this is expected
}
// check index == getItemCount() throws exception
try {
/* Number n = */ d1.getKey(d1.getItemCount());
fail("Expected IndexOutOfBoundsException.");
}
catch (IndexOutOfBoundsException e) {
// this is expected
}
// test null source
CategoryToPieDataset p1 = new CategoryToPieDataset(null,
TableOrder.BY_COLUMN, 0);
try {
/* Number n = */ p1.getKey(0);
fail("Expected IndexOutOfBoundsException.");
}
catch (IndexOutOfBoundsException e) {
// this is expected
}
}
/**
* Some checks for the getIndex() method.
*/
@Test
public void testGetIndex() {
DefaultCategoryDataset underlying = new DefaultCategoryDataset();
underlying.addValue(1.1, "R1", "C1");
underlying.addValue(2.2, "R1", "C2");
CategoryToPieDataset d1 = new CategoryToPieDataset(underlying,
TableOrder.BY_ROW, 0);
assertEquals(0, d1.getIndex("C1"));
assertEquals(1, d1.getIndex("C2"));
assertEquals(-1, d1.getIndex("XX"));
// try null
try {
d1.getIndex(null);
fail("IllegalArgumentException should have been thrown on null parameter");
}
catch (IllegalArgumentException e) {
assertEquals("Null 'key' argument.", e.getMessage());
}
}
/**
* For datasets, the equals() method just checks keys and values.
*/
@Test
public void testEquals() {
DefaultCategoryDataset underlying = new DefaultCategoryDataset();
underlying.addValue(1.1, "R1", "C1");
underlying.addValue(2.2, "R1", "C2");
CategoryToPieDataset d1 = new CategoryToPieDataset(underlying,
TableOrder.BY_COLUMN, 1);
DefaultPieDataset d2 = new DefaultPieDataset();
d2.setValue("R1", 2.2);
assertEquals(d1, d2);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
DefaultCategoryDataset underlying = new DefaultCategoryDataset();
underlying.addValue(1.1, "R1", "C1");
underlying.addValue(2.2, "R1", "C2");
CategoryToPieDataset d1 = new CategoryToPieDataset(underlying,
TableOrder.BY_COLUMN, 1);
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(d1);
out.close();
ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
buffer.toByteArray()));
CategoryToPieDataset d2 = (CategoryToPieDataset) in.readObject();
in.close();
assertEquals(d1, d2);
// regular equality for the datasets doesn't check the fields, just
// the data values...so let's check some more things...
assertEquals(d1.getUnderlyingDataset(), d2.getUnderlyingDataset());
assertEquals(d1.getExtractType(), d2.getExtractType());
assertEquals(d1.getExtractIndex(), d2.getExtractIndex());
}
}