1 //----------------------------------------------------------------------
2 //
3 // PerfectJPattern: "Design patterns are good but components are better!"
4 // TestParameterlessSubject.java Copyright (c) 2009 Giovanni Azua Garcia
5 // bravegag@hotmail.com
6 //
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License
9 // as published by the Free Software Foundation; either version 3
10 // of the License, or (at your option) any later version.
11 //
12 // This program is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
16 //
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, see <http://www.gnu.org/licenses/>.
19 //
20 //----------------------------------------------------------------------
21 package org.perfectjpattern.core.behavioral.observer;
22
23 import junit.framework.*;
24
25 import org.perfectjpattern.core.api.behavioral.observer.*;
26 import org.perfectjpattern.core.api.behavioral.observer.data.*;
27
28 /**
29 * Test suite for the {@link ParameterlessSubject} implementation
30 *
31 * @author <a href="mailto:bravegag@hotmail.com">Giovanni Azua</a>
32 * @version $Revision: 1.0 $Date: Feb 13, 2009 10:03:09 PM $
33 */
34 public
35 class TestParameterlessSubject
36 extends TestCase
37 {
38 //------------------------------------------------------------------------
39 // public
40 //------------------------------------------------------------------------
41 @SuppressWarnings("unchecked")
42 public void
43 testParameterlessSubject()
44 {
45 IObserver<NullEventData> myObserver1 = new TestNullEventDataObserver();
46 IObserver<NullEventData> myObserver2 = new TestNullEventDataObserver();
47
48 ParameterlessSubject mySubject = new ParameterlessSubject();
49 mySubject.attach(myObserver1, myObserver2);
50 mySubject.notifyObservers();
51
52 assertEquals("ParameterlessSubject did not work as expected", 2,
53 theCallCount);
54 }
55
56 //------------------------------------------------------------------------
57 // inner classes
58 //------------------------------------------------------------------------
59 /**
60 * Concrete <code>IObserver<NullEventData></code> implementation
61 */
62 private static final
63 class TestNullEventDataObserver
64 implements IObserver<NullEventData>
65 {
66 //---------------------------------------------------------------------
67 public void
68 update(NullEventData anEventData)
69 {
70 theCallCount++;
71 }
72 }
73
74 //------------------------------------------------------------------------
75 // members
76 //------------------------------------------------------------------------
77 private static int theCallCount = 0;
78 }