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Java > Open Source Codes > org > jfree > ui > junit > LayerTests


1 /* ========================================================================
2  * JCommon : a free general purpose class library for the Java(tm) platform
3  * ========================================================================
4  *
5  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
6  *
7  * Project Info: http://www.jfree.org/jcommon/index.html
8  *
9  * 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  * LayerTests.java
29  * ---------------
30  * (C) Copyright 2004, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: LayerTests.java,v 1.2 2005/10/18 13:22:36 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 08-Jan-2004 : Version 1 (DG);
40  *
41  */
42
43 package org.jfree.ui.junit;
44
45 import java.io.ByteArrayInputStream JavaDoc;
46 import java.io.ByteArrayOutputStream JavaDoc;
47 import java.io.ObjectInput JavaDoc;
48 import java.io.ObjectInputStream JavaDoc;
49 import java.io.ObjectOutput JavaDoc;
50 import java.io.ObjectOutputStream JavaDoc;
51
52 import junit.framework.Test;
53 import junit.framework.TestCase;
54 import junit.framework.TestSuite;
55
56 import org.jfree.ui.Layer;
57
58 /**
59  * Tests for the {@link Layer} class.
60  */
61 public class LayerTests extends TestCase {
62
63     /**
64      * Returns the tests as a test suite.
65      *
66      * @return The test suite.
67      */
68     public static Test suite() {
69         return new TestSuite(LayerTests.class);
70     }
71
72     /**
73      * Constructs a new set of tests.
74      *
75      * @param name the name of the tests.
76      */
77     public LayerTests(final String JavaDoc name) {
78         super(name);
79     }
80
81     /**
82      * Tests the equals() method.
83      */
84     public void testEquals() {
85         assertTrue(Layer.FOREGROUND.equals(Layer.FOREGROUND));
86         assertTrue(Layer.BACKGROUND.equals(Layer.BACKGROUND));
87         assertFalse(Layer.FOREGROUND.equals(Layer.BACKGROUND));
88     }
89     
90     /**
91      * Serialize an instance, restore it, and check for identity.
92      */
93     public void testSerialization() {
94
95         final Layer l1 = Layer.FOREGROUND;
96         Layer l2 = null;
97
98         try {
99             final ByteArrayOutputStream JavaDoc buffer = new ByteArrayOutputStream JavaDoc();
100             final ObjectOutput JavaDoc out = new ObjectOutputStream JavaDoc(buffer);
101             out.writeObject(l1);
102             out.close();
103
104             final ObjectInput JavaDoc in = new ObjectInputStream JavaDoc(new ByteArrayInputStream JavaDoc(buffer.toByteArray()));
105             l2 = (Layer) in.readObject();
106             in.close();
107         }
108         catch (Exception JavaDoc e) {
109             System.out.println(e.toString());
110         }
111         assertTrue(l1 == l2);
112
113     }
114
115 }
116
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