Source Code Cross Referenced for StackedXYAreaRendererTests.java in  » Chart » jfreechart » org » jfree » chart » renderer » xy » junit » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Chart » jfreechart » org.jfree.chart.renderer.xy.junit 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* ===========================================================
002:         * JFreeChart : a free chart library for the Java(tm) platform
003:         * ===========================================================
004:         *
005:         * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
006:         *
007:         * Project Info:  http://www.jfree.org/jfreechart/index.html
008:         *
009:         * This library is free software; you can redistribute it and/or modify it 
010:         * under the terms of the GNU Lesser General Public License as published by 
011:         * the Free Software Foundation; either version 2.1 of the License, or 
012:         * (at your option) any later version.
013:         *
014:         * This library is distributed in the hope that it will be useful, but 
015:         * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
016:         * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
017:         * License for more details.
018:         *
019:         * You should have received a copy of the GNU Lesser General Public
020:         * License along with this library; if not, write to the Free Software
021:         * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
022:         * USA.  
023:         *
024:         * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
025:         * in the United States and other countries.]
026:         *
027:         * -------------------------------
028:         * StackedXYAreaRendererTests.java
029:         * -------------------------------
030:         * (C) Copyright 2003-2007, by Object Refinery Limited and Contributors.
031:         *
032:         * Original Author:  David Gilbert (for Object Refinery Limited);
033:         * Contributor(s):   -;
034:         *
035:         * $Id: StackedXYAreaRendererTests.java,v 1.1.2.3 2007/03/22 16:58:37 mungady Exp $
036:         *
037:         * Changes
038:         * -------
039:         * 25-Mar-2003 : Version 1 (DG);
040:         * 06-Jan-2005 : Renamed StackedAreaXYRendererTests --> 
041:         *               StackedXYAreaRendererTests, improved testEquals() method, 
042:         *               added check for auto range calculation (DG);
043:         * 10-Nov-2006 : Added testBug1593156() (DG);
044:         *
045:         */
046:
047:        package org.jfree.chart.renderer.xy.junit;
048:
049:        import java.awt.BasicStroke;
050:        import java.awt.Color;
051:        import java.awt.GradientPaint;
052:        import java.awt.Stroke;
053:        import java.io.ByteArrayInputStream;
054:        import java.io.ByteArrayOutputStream;
055:        import java.io.ObjectInput;
056:        import java.io.ObjectInputStream;
057:        import java.io.ObjectOutput;
058:        import java.io.ObjectOutputStream;
059:
060:        import junit.framework.Test;
061:        import junit.framework.TestCase;
062:        import junit.framework.TestSuite;
063:
064:        import org.jfree.chart.ChartFactory;
065:        import org.jfree.chart.JFreeChart;
066:        import org.jfree.chart.axis.NumberAxis;
067:        import org.jfree.chart.plot.PlotOrientation;
068:        import org.jfree.chart.plot.XYPlot;
069:        import org.jfree.chart.renderer.xy.StackedXYAreaRenderer;
070:        import org.jfree.chart.renderer.xy.XYAreaRenderer;
071:        import org.jfree.data.Range;
072:        import org.jfree.data.xy.DefaultTableXYDataset;
073:        import org.jfree.data.xy.TableXYDataset;
074:        import org.jfree.data.xy.XYSeries;
075:
076:        /**
077:         * Tests for the {@link StackedXYAreaRenderer} class.
078:         */
079:        public class StackedXYAreaRendererTests extends TestCase {
080:
081:            /**
082:             * Returns the tests as a test suite.
083:             *
084:             * @return The test suite.
085:             */
086:            public static Test suite() {
087:                return new TestSuite(StackedXYAreaRendererTests.class);
088:            }
089:
090:            /**
091:             * Constructs a new set of tests.
092:             *
093:             * @param name  the name of the tests.
094:             */
095:            public StackedXYAreaRendererTests(String name) {
096:                super (name);
097:            }
098:
099:            /**
100:             * Test that the equals() method distinguishes all fields.
101:             */
102:            public void testEquals() {
103:                StackedXYAreaRenderer r1 = new StackedXYAreaRenderer();
104:                StackedXYAreaRenderer r2 = new StackedXYAreaRenderer();
105:                assertEquals(r1, r2);
106:                assertEquals(r2, r1);
107:
108:                r1.setShapePaint(new GradientPaint(1.0f, 2.0f, Color.yellow,
109:                        3.0f, 4.0f, Color.green));
110:                assertFalse(r1.equals(r2));
111:                r2.setShapePaint(new GradientPaint(1.0f, 2.0f, Color.yellow,
112:                        3.0f, 4.0f, Color.green));
113:                assertTrue(r1.equals(r2));
114:
115:                Stroke s = new BasicStroke(1.23f);
116:                r1.setShapeStroke(s);
117:                assertFalse(r1.equals(r2));
118:                r2.setShapeStroke(s);
119:                assertTrue(r1.equals(r2));
120:            }
121:
122:            /**
123:             * Two objects that are equal are required to return the same hashCode. 
124:             */
125:            public void testHashcode() {
126:                StackedXYAreaRenderer r1 = new StackedXYAreaRenderer();
127:                StackedXYAreaRenderer r2 = new StackedXYAreaRenderer();
128:                assertTrue(r1.equals(r2));
129:                int h1 = r1.hashCode();
130:                int h2 = r2.hashCode();
131:                assertEquals(h1, h2);
132:            }
133:
134:            /**
135:             * Confirm that cloning works.
136:             */
137:            public void testCloning() {
138:                StackedXYAreaRenderer r1 = new StackedXYAreaRenderer();
139:                StackedXYAreaRenderer r2 = null;
140:                try {
141:                    r2 = (StackedXYAreaRenderer) r1.clone();
142:                } catch (CloneNotSupportedException e) {
143:                    e.printStackTrace();
144:                }
145:                assertTrue(r1 != r2);
146:                assertTrue(r1.getClass() == r2.getClass());
147:                assertTrue(r1.equals(r2));
148:            }
149:
150:            /**
151:             * Serialize an instance, restore it, and check for equality.
152:             */
153:            public void testSerialization() {
154:                StackedXYAreaRenderer r1 = new StackedXYAreaRenderer();
155:                r1.setShapePaint(Color.red);
156:                r1.setShapeStroke(new BasicStroke(1.23f));
157:                StackedXYAreaRenderer r2 = null;
158:                try {
159:                    ByteArrayOutputStream buffer = new ByteArrayOutputStream();
160:                    ObjectOutput out = new ObjectOutputStream(buffer);
161:                    out.writeObject(r1);
162:                    out.close();
163:
164:                    ObjectInput in = new ObjectInputStream(
165:                            new ByteArrayInputStream(buffer.toByteArray()));
166:                    r2 = (StackedXYAreaRenderer) in.readObject();
167:                    in.close();
168:                } catch (Exception e) {
169:                    e.printStackTrace();
170:                }
171:                assertEquals(r1, r2);
172:            }
173:
174:            /**
175:             * Check that the renderer is calculating the range bounds correctly.
176:             */
177:            public void testFindRangeBounds() {
178:                TableXYDataset dataset = RendererXYPackageTests
179:                        .createTestTableXYDataset();
180:                JFreeChart chart = ChartFactory.createStackedXYAreaChart(
181:                        "Test Chart", "X", "Y", dataset,
182:                        PlotOrientation.VERTICAL, false, false, false);
183:                XYPlot plot = (XYPlot) chart.getPlot();
184:                NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
185:                Range bounds = rangeAxis.getRange();
186:                assertTrue(bounds.contains(6.0));
187:                assertTrue(bounds.contains(8.0));
188:            }
189:
190:            /**
191:             * Draws the chart with a <code>null</code> info object to make sure that 
192:             * no exceptions are thrown (particularly by code in the renderer).
193:             */
194:            public void testDrawWithNullInfo() {
195:                boolean success = false;
196:                try {
197:                    DefaultTableXYDataset dataset = new DefaultTableXYDataset();
198:
199:                    XYSeries s1 = new XYSeries("Series 1", true, false);
200:                    s1.add(5.0, 5.0);
201:                    s1.add(10.0, 15.5);
202:                    s1.add(15.0, 9.5);
203:                    s1.add(20.0, 7.5);
204:                    dataset.addSeries(s1);
205:
206:                    XYSeries s2 = new XYSeries("Series 2", true, false);
207:                    s2.add(5.0, 5.0);
208:                    s2.add(10.0, 15.5);
209:                    s2.add(15.0, 9.5);
210:                    s2.add(20.0, 3.5);
211:                    dataset.addSeries(s2);
212:                    XYPlot plot = new XYPlot(dataset, new NumberAxis("X"),
213:                            new NumberAxis("Y"), new StackedXYAreaRenderer());
214:                    JFreeChart chart = new JFreeChart(plot);
215:                    /* BufferedImage image = */chart.createBufferedImage(300,
216:                            200, null);
217:                    success = true;
218:                } catch (NullPointerException e) {
219:                    e.printStackTrace();
220:                    success = false;
221:                }
222:                assertTrue(success);
223:            }
224:
225:            /**
226:             * A test for bug 1593156.
227:             */
228:            public void testBug1593156() {
229:                boolean success = false;
230:                try {
231:                    DefaultTableXYDataset dataset = new DefaultTableXYDataset();
232:
233:                    XYSeries s1 = new XYSeries("Series 1", true, false);
234:                    s1.add(5.0, 5.0);
235:                    s1.add(10.0, 15.5);
236:                    s1.add(15.0, 9.5);
237:                    s1.add(20.0, 7.5);
238:                    dataset.addSeries(s1);
239:
240:                    XYSeries s2 = new XYSeries("Series 2", true, false);
241:                    s2.add(5.0, 5.0);
242:                    s2.add(10.0, 15.5);
243:                    s2.add(15.0, 9.5);
244:                    s2.add(20.0, 3.5);
245:                    dataset.addSeries(s2);
246:                    StackedXYAreaRenderer renderer = new StackedXYAreaRenderer(
247:                            XYAreaRenderer.LINES);
248:                    XYPlot plot = new XYPlot(dataset, new NumberAxis("X"),
249:                            new NumberAxis("Y"), renderer);
250:                    JFreeChart chart = new JFreeChart(plot);
251:                    /* BufferedImage image = */chart.createBufferedImage(300,
252:                            200, null);
253:                    success = true;
254:                } catch (NullPointerException e) {
255:                    e.printStackTrace();
256:                    success = false;
257:                }
258:                assertTrue(success);
259:            }
260:
261:        }
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