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: * OHLCItemTests.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: OHLCItemTests.java,v 1.1.2.1 2006/12/04 17:08:36 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 04-Dec-2006 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.data.time.ohlc.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.time.Year;
057: import org.jfree.data.time.ohlc.OHLCItem;
058:
059: /**
060: * Tests for the {@link OHLCItem} class.
061: */
062: public class OHLCItemTests extends TestCase {
063:
064: /**
065: * Returns the tests as a test suite.
066: *
067: * @return The test suite.
068: */
069: public static Test suite() {
070: return new TestSuite(OHLCItemTests.class);
071: }
072:
073: /**
074: * Constructs a new set of tests.
075: *
076: * @param name the name of the tests.
077: */
078: public OHLCItemTests(String name) {
079: super (name);
080: }
081:
082: private static final double EPSILON = 0.00000000001;
083:
084: /**
085: * Some checks for the constructor.
086: */
087: public void testConstructor1() {
088: OHLCItem item1 = new OHLCItem(new Year(2006), 2.0, 4.0, 1.0,
089: 3.0);
090: assertEquals(new Year(2006), item1.getPeriod());
091: assertEquals(2.0, item1.getOpenValue(), EPSILON);
092: assertEquals(4.0, item1.getHighValue(), EPSILON);
093: assertEquals(1.0, item1.getLowValue(), EPSILON);
094: assertEquals(3.0, item1.getCloseValue(), EPSILON);
095: }
096:
097: /**
098: * Confirm that the equals method can distinguish all the required fields.
099: */
100: public void testEquals() {
101: OHLCItem item1 = new OHLCItem(new Year(2006), 2.0, 4.0, 1.0,
102: 3.0);
103: OHLCItem item2 = new OHLCItem(new Year(2006), 2.0, 4.0, 1.0,
104: 3.0);
105: assertTrue(item1.equals(item2));
106: assertTrue(item2.equals(item1));
107:
108: // period
109: item1 = new OHLCItem(new Year(2007), 2.0, 4.0, 1.0, 3.0);
110: assertFalse(item1.equals(item2));
111: item2 = new OHLCItem(new Year(2007), 2.0, 4.0, 1.0, 3.0);
112: assertTrue(item1.equals(item2));
113:
114: // open
115: item1 = new OHLCItem(new Year(2007), 2.2, 4.0, 1.0, 3.0);
116: assertFalse(item1.equals(item2));
117: item2 = new OHLCItem(new Year(2007), 2.2, 4.0, 1.0, 3.0);
118: assertTrue(item1.equals(item2));
119:
120: // high
121: item1 = new OHLCItem(new Year(2007), 2.2, 4.4, 1.0, 3.0);
122: assertFalse(item1.equals(item2));
123: item2 = new OHLCItem(new Year(2007), 2.2, 4.4, 1.0, 3.0);
124: assertTrue(item1.equals(item2));
125:
126: // low
127: item1 = new OHLCItem(new Year(2007), 2.2, 4.4, 1.1, 3.0);
128: assertFalse(item1.equals(item2));
129: item2 = new OHLCItem(new Year(2007), 2.2, 4.4, 1.1, 3.0);
130: assertTrue(item1.equals(item2));
131:
132: // close
133: item1 = new OHLCItem(new Year(2007), 2.2, 4.4, 1.1, 3.3);
134: assertFalse(item1.equals(item2));
135: item2 = new OHLCItem(new Year(2007), 2.2, 4.4, 1.1, 3.3);
136: assertTrue(item1.equals(item2));
137: }
138:
139: /**
140: * Some checks for the clone() method.
141: */
142: public void testCloning() {
143: OHLCItem item1 = new OHLCItem(new Year(2006), 2.0, 4.0, 1.0,
144: 3.0);
145: OHLCItem item2 = null;
146: try {
147: item2 = (OHLCItem) item1.clone();
148: } catch (CloneNotSupportedException e) {
149: e.printStackTrace();
150: }
151: assertTrue(item1 != item2);
152: assertTrue(item1.getClass() == item2.getClass());
153: assertTrue(item1.equals(item2));
154: }
155:
156: /**
157: * Serialize an instance, restore it, and check for equality.
158: */
159: public void testSerialization() {
160: OHLCItem item1 = new OHLCItem(new Year(2006), 2.0, 4.0, 1.0,
161: 3.0);
162: OHLCItem item2 = null;
163: try {
164: ByteArrayOutputStream buffer = new ByteArrayOutputStream();
165: ObjectOutput out = new ObjectOutputStream(buffer);
166: out.writeObject(item1);
167: out.close();
168:
169: ObjectInput in = new ObjectInputStream(
170: new ByteArrayInputStream(buffer.toByteArray()));
171: item2 = (OHLCItem) in.readObject();
172: in.close();
173: } catch (Exception e) {
174: e.printStackTrace();
175: }
176: assertEquals(item1, item2);
177: }
178:
179: }
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