001: /* ===========================================================
002: * JFreeChart : a free chart library for the Java(tm) platform
003: * ===========================================================
004: *
005: * (C) Copyright 2000-2006, 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: * XYIntervalDataItemTests.java
029: * ----------------------------
030: * (C) Copyright 2006, by Object Refinery Limited and Contributors.
031: *
032: * Original Author: David Gilbert (for Object Refinery Limited);
033: * Contributor(s): -;
034: *
035: * $Id: XYIntervalDataItemTests.java,v 1.1.2.2 2006/10/21 05:11:04 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 20-Oct-2006 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.data.xy.junit;
044:
045: import java.io.ByteArrayInputStream;
046: import java.io.ByteArrayOutputStream;
047: import java.io.ObjectInput;
048: import java.io.ObjectInputStream;
049: import java.io.ObjectOutput;
050: import java.io.ObjectOutputStream;
051:
052: import junit.framework.Test;
053: import junit.framework.TestCase;
054: import junit.framework.TestSuite;
055:
056: import org.jfree.data.xy.XYIntervalDataItem;
057:
058: /**
059: * Tests for the {@link XYIntervalDataItem} class.
060: */
061: public class XYIntervalDataItemTests extends TestCase {
062:
063: /**
064: * Returns the tests as a test suite.
065: *
066: * @return The test suite.
067: */
068: public static Test suite() {
069: return new TestSuite(XYIntervalDataItemTests.class);
070: }
071:
072: /**
073: * Constructs a new set of tests.
074: *
075: * @param name the name of the tests.
076: */
077: public XYIntervalDataItemTests(String name) {
078: super (name);
079: }
080:
081: private static final double EPSILON = 0.000000001;
082:
083: /**
084: * Some checks for the constructor.
085: */
086: public void testConstructor1() {
087: XYIntervalDataItem item1 = new XYIntervalDataItem(1.0, 0.5,
088: 1.5, 2.0, 1.9, 2.1);
089: assertEquals(new Double(1.0), item1.getX());
090: assertEquals(0.5, item1.getXLowValue(), EPSILON);
091: assertEquals(1.5, item1.getXHighValue(), EPSILON);
092: assertEquals(2.0, item1.getYValue(), EPSILON);
093: assertEquals(1.9, item1.getYLowValue(), EPSILON);
094: assertEquals(2.1, item1.getYHighValue(), EPSILON);
095: }
096:
097: /**
098: * Confirm that the equals method can distinguish all the required fields.
099: */
100: public void testEquals() {
101: XYIntervalDataItem item1 = new XYIntervalDataItem(1.0, 0.5,
102: 1.5, 2.0, 1.9, 2.1);
103: XYIntervalDataItem item2 = new XYIntervalDataItem(1.0, 0.5,
104: 1.5, 2.0, 1.9, 2.1);
105: assertTrue(item1.equals(item2));
106: assertTrue(item2.equals(item1));
107:
108: // x
109: item1 = new XYIntervalDataItem(1.1, 0.5, 1.5, 2.0, 1.9, 2.1);
110: assertFalse(item1.equals(item2));
111: item2 = new XYIntervalDataItem(1.1, 0.5, 1.5, 2.0, 1.9, 2.1);
112: assertTrue(item1.equals(item2));
113:
114: // xLow
115: item1 = new XYIntervalDataItem(1.1, 0.55, 1.5, 2.0, 1.9, 2.1);
116: assertFalse(item1.equals(item2));
117: item2 = new XYIntervalDataItem(1.1, 0.55, 1.5, 2.0, 1.9, 2.1);
118: assertTrue(item1.equals(item2));
119:
120: // xHigh
121: item1 = new XYIntervalDataItem(1.1, 0.55, 1.55, 2.0, 1.9, 2.1);
122: assertFalse(item1.equals(item2));
123: item2 = new XYIntervalDataItem(1.1, 0.55, 1.55, 2.0, 1.9, 2.1);
124: assertTrue(item1.equals(item2));
125:
126: // y
127: item1 = new XYIntervalDataItem(1.1, 0.55, 1.55, 2.2, 1.9, 2.1);
128: assertFalse(item1.equals(item2));
129: item2 = new XYIntervalDataItem(1.1, 0.55, 1.55, 2.2, 1.9, 2.1);
130: assertTrue(item1.equals(item2));
131:
132: // yLow
133: item1 = new XYIntervalDataItem(1.1, 0.55, 1.55, 2.2, 1.99, 2.1);
134: assertFalse(item1.equals(item2));
135: item2 = new XYIntervalDataItem(1.1, 0.55, 1.55, 2.2, 1.99, 2.1);
136: assertTrue(item1.equals(item2));
137:
138: // yHigh
139: item1 = new XYIntervalDataItem(1.1, 0.55, 1.55, 2.2, 1.99, 2.11);
140: assertFalse(item1.equals(item2));
141: item2 = new XYIntervalDataItem(1.1, 0.55, 1.55, 2.2, 1.99, 2.11);
142: assertTrue(item1.equals(item2));
143: }
144:
145: /**
146: * Some checks for the clone() method.
147: */
148: public void testCloning() {
149: XYIntervalDataItem item1 = new XYIntervalDataItem(1.0, 0.5,
150: 1.5, 2.0, 1.9, 2.1);
151: XYIntervalDataItem item2 = null;
152: try {
153: item2 = (XYIntervalDataItem) item1.clone();
154: } catch (CloneNotSupportedException e) {
155: e.printStackTrace();
156: }
157: assertTrue(item1 != item2);
158: assertTrue(item1.getClass() == item2.getClass());
159: assertTrue(item1.equals(item2));
160: }
161:
162: /**
163: * Serialize an instance, restore it, and check for equality.
164: */
165: public void testSerialization() {
166: XYIntervalDataItem item1 = new XYIntervalDataItem(1.0, 0.5,
167: 1.5, 2.0, 1.9, 2.1);
168: XYIntervalDataItem item2 = null;
169: try {
170: ByteArrayOutputStream buffer = new ByteArrayOutputStream();
171: ObjectOutput out = new ObjectOutputStream(buffer);
172: out.writeObject(item1);
173: out.close();
174:
175: ObjectInput in = new ObjectInputStream(
176: new ByteArrayInputStream(buffer.toByteArray()));
177: item2 = (XYIntervalDataItem) in.readObject();
178: in.close();
179: } catch (Exception e) {
180: e.printStackTrace();
181: }
182: assertEquals(item1, item2);
183: }
184:
185: }
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