01: /* ===========================================================
02: * JFreeChart : a free chart library for the Java(tm) platform
03: * ===========================================================
04: *
05: * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
06: *
07: * Project Info: http://www.jfree.org/jfreechart/index.html
08: *
09: * This library is free software; you can redistribute it and/or modify it
10: * under the terms of the GNU Lesser General Public License as published by
11: * the Free Software Foundation; either version 2.1 of the License, or
12: * (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful, but
15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17: * License for more details.
18: *
19: * You should have received a copy of the GNU Lesser General Public
20: * License along with this library; if not, write to the Free Software
21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22: * USA.
23: *
24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25: * in the United States and other countries.]
26: *
27: * -----------------------
28: * HashUtilitiesTests.java
29: * -----------------------
30: * (C) Copyright 2004-2007, by Object Refinery Limited and Contributors.
31: *
32: * Original Author: David Gilbert (for Object Refinery Limited);
33: * Contributor(s): -;
34: *
35: * $Id: HashUtilitiesTests.java,v 1.1.2.1 2007/03/06 16:00:44 mungady Exp $
36: *
37: * Changes
38: * -------
39: * 06-Mar-2007 : Version 1 (DG);
40: *
41: */
42:
43: package org.jfree.chart.junit;
44:
45: import junit.framework.Test;
46: import junit.framework.TestCase;
47: import junit.framework.TestSuite;
48:
49: import org.jfree.chart.HashUtilities;
50:
51: /**
52: * Tests for the {@link HashUtilities} class.
53: */
54: public class HashUtilitiesTests extends TestCase {
55:
56: /**
57: * Returns the tests as a test suite.
58: *
59: * @return The test suite.
60: */
61: public static Test suite() {
62: return new TestSuite(HashUtilitiesTests.class);
63: }
64:
65: /**
66: * Constructs a new set of tests.
67: *
68: * @param name the name of the tests.
69: */
70: public HashUtilitiesTests(String name) {
71: super (name);
72: }
73:
74: /**
75: * Some sanity checks for the hashCodeForDoubleArray() method.
76: */
77: public void testHashCodeForDoubleArray() {
78: double[] a1 = new double[] { 1.0 };
79: double[] a2 = new double[] { 1.0 };
80: int h1 = HashUtilities.hashCodeForDoubleArray(a1);
81: int h2 = HashUtilities.hashCodeForDoubleArray(a2);
82: assertTrue(h1 == h2);
83:
84: double[] a3 = new double[] { 0.5, 1.0 };
85: int h3 = HashUtilities.hashCodeForDoubleArray(a3);
86: assertFalse(h1 == h3);
87: }
88: }
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