KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > edu > rice > cs > drjava > model > EventNotifierTest


1 /*BEGIN_COPYRIGHT_BLOCK
2  *
3  * This file is part of DrJava. Download the current version of this project from http://www.drjava.org/
4  * or http://sourceforge.net/projects/drjava/
5  *
6  * DrJava Open Source License
7  *
8  * Copyright (C) 2001-2006 JavaPLT group at Rice University (javaplt@rice.edu). All rights reserved.
9  *
10  * Developed by: Java Programming Languages Team, Rice University, http://www.cs.rice.edu/~javaplt/
11  *
12  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
13  * documentation files (the "Software"), to deal with the Software without restriction, including without limitation
14  * the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
15  * to permit persons to whom the Software is furnished to do so, subject to the following conditions:
16  *
17  * - Redistributions of source code must retain the above copyright notice, this list of conditions and the
18  * following disclaimers.
19  * - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
20  * following disclaimers in the documentation and/or other materials provided with the distribution.
21  * - Neither the names of DrJava, the JavaPLT, Rice University, nor the names of its contributors may be used to
22  * endorse or promote products derived from this Software without specific prior written permission.
23  * - Products derived from this software may not be called "DrJava" nor use the term "DrJava" as part of their
24  * names without prior written permission from the JavaPLT group. For permission, write to javaplt@rice.edu.
25  *
26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
27  * THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
28  * CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
29  * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
30  * WITH THE SOFTWARE.
31  *
32  *END_COPYRIGHT_BLOCK*/

33
34 package edu.rice.cs.drjava.model;
35
36 import edu.rice.cs.drjava.DrJavaTestCase;
37 import edu.rice.cs.drjava.model.GlobalModelTestCase.TestListener;
38
39 /**
40  * Tests the functionality of the class that notifies listeners
41  * of a global model.
42  * @version $Id: EventNotifierTest.java 3901 2006-06-30 05:28:11Z rcartwright $
43  */

44 public final class EventNotifierTest extends DrJavaTestCase {
45   
46   protected GlobalEventNotifier _notifier;
47   
48   public void setUp() throws Exception JavaDoc {
49     super.setUp();
50     _notifier = new GlobalEventNotifier();
51   }
52   
53   public void tearDown() throws Exception JavaDoc {
54     _notifier = null;
55     super.tearDown();
56   }
57   
58   /**
59    * Checks that the notifier adds and removes listeners correctly,
60    * notifying the correct ones on a particular event.
61    */

62   public void testAddAndRemoveListeners() {
63     TestListener listener1 = new TestListener() {
64       public void junitSuiteStarted(int numTests) {
65         junitSuiteStartedCount++;
66       }
67       public void interpreterExited(int status) {
68         interpreterExitedCount++;
69       }
70     };
71     TestListener listener2 = new TestListener() {
72       public void junitSuiteStarted(int numTests) {
73         junitSuiteStartedCount++;
74       }
75     };
76     
77     _notifier.addListener(listener1);
78     _notifier.addListener(listener2);
79     _notifier.junitSuiteStarted(1);
80     
81     listener1.assertJUnitSuiteStartedCount(1);
82     listener2.assertJUnitSuiteStartedCount(1);
83
84     //remove one listener and fire another event
85
_notifier.removeListener(listener2);
86     _notifier.interpreterExited(1);
87
88     listener1.assertInterpreterExitedCount(1);
89     listener2.assertInterpreterExitedCount(0);
90   }
91   
92   /**
93    * Checks that the notifier can poll multiple listeners.
94    */

95   public void testPollListeners() {
96     TestListener trueListener = new TestListener() {
97       public boolean canAbandonFile(OpenDefinitionsDocument doc) { return true; }
98     };
99     TestListener falseListener = new TestListener() {
100       public boolean canAbandonFile(OpenDefinitionsDocument doc) { return false; }
101     };
102
103     // Make sure trueListener says yes
104
_notifier.addListener(trueListener);
105     boolean result = _notifier.canAbandonFile(null);
106     assertTrue("should be able to abandon file", result);
107     
108     // Make sure falseListener says no
109
_notifier.addListener(falseListener);
110     result = _notifier.canAbandonFile(null);
111     assertTrue("should not be able to abandon file", !result);
112   }
113 }
114
Popular Tags