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: * YIntervalDataItemTests.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: YIntervalDataItemTests.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.YIntervalDataItem;
057:
058: /**
059: * Tests for the {@link YIntervalDataItem} class.
060: */
061: public class YIntervalDataItemTests 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(YIntervalDataItemTests.class);
070: }
071:
072: /**
073: * Constructs a new set of tests.
074: *
075: * @param name the name of the tests.
076: */
077: public YIntervalDataItemTests(String name) {
078: super (name);
079: }
080:
081: private static final double EPSILON = 0.00000000001;
082:
083: /**
084: * Some checks for the constructor.
085: */
086: public void testConstructor1() {
087: YIntervalDataItem item1 = new YIntervalDataItem(1.0, 2.0, 3.0,
088: 4.0);
089: assertEquals(new Double(1.0), item1.getX());
090: assertEquals(2.0, item1.getYValue(), EPSILON);
091: assertEquals(3.0, item1.getYLowValue(), EPSILON);
092: assertEquals(4.0, item1.getYHighValue(), EPSILON);
093: }
094:
095: /**
096: * Confirm that the equals method can distinguish all the required fields.
097: */
098: public void testEquals() {
099: YIntervalDataItem item1 = new YIntervalDataItem(1.0, 2.0, 1.5,
100: 2.5);
101: YIntervalDataItem item2 = new YIntervalDataItem(1.0, 2.0, 1.5,
102: 2.5);
103: assertTrue(item1.equals(item2));
104: assertTrue(item2.equals(item1));
105:
106: // x
107: item1 = new YIntervalDataItem(1.1, 2.0, 1.5, 2.5);
108: assertFalse(item1.equals(item2));
109: item2 = new YIntervalDataItem(1.1, 2.0, 1.5, 2.5);
110: assertTrue(item1.equals(item2));
111:
112: // y
113: item1 = new YIntervalDataItem(1.1, 2.2, 1.5, 2.5);
114: assertFalse(item1.equals(item2));
115: item2 = new YIntervalDataItem(1.1, 2.2, 1.5, 2.5);
116: assertTrue(item1.equals(item2));
117:
118: // yLow
119: item1 = new YIntervalDataItem(1.1, 2.2, 1.55, 2.5);
120: assertFalse(item1.equals(item2));
121: item2 = new YIntervalDataItem(1.1, 2.2, 1.55, 2.5);
122: assertTrue(item1.equals(item2));
123:
124: // yHigh
125: item1 = new YIntervalDataItem(1.1, 2.2, 1.55, 2.55);
126: assertFalse(item1.equals(item2));
127: item2 = new YIntervalDataItem(1.1, 2.2, 1.55, 2.55);
128: assertTrue(item1.equals(item2));
129: }
130:
131: /**
132: * Some checks for the clone() method.
133: */
134: public void testCloning() {
135: YIntervalDataItem item1 = new YIntervalDataItem(1.0, 2.0, 1.5,
136: 2.5);
137: YIntervalDataItem item2 = null;
138: try {
139: item2 = (YIntervalDataItem) item1.clone();
140: } catch (CloneNotSupportedException e) {
141: e.printStackTrace();
142: }
143: assertTrue(item1 != item2);
144: assertTrue(item1.getClass() == item2.getClass());
145: assertTrue(item1.equals(item2));
146: }
147:
148: /**
149: * Serialize an instance, restore it, and check for equality.
150: */
151: public void testSerialization() {
152: YIntervalDataItem item1 = new YIntervalDataItem(1.0, 2.0, 1.5,
153: 2.5);
154: YIntervalDataItem item2 = null;
155: try {
156: ByteArrayOutputStream buffer = new ByteArrayOutputStream();
157: ObjectOutput out = new ObjectOutputStream(buffer);
158: out.writeObject(item1);
159: out.close();
160:
161: ObjectInput in = new ObjectInputStream(
162: new ByteArrayInputStream(buffer.toByteArray()));
163: item2 = (YIntervalDataItem) in.readObject();
164: in.close();
165: } catch (Exception e) {
166: e.printStackTrace();
167: }
168: assertEquals(item1, item2);
169: }
170:
171: }
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