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Java > Open Source Codes > com > google > inject > util > FinalizableReferenceQueueTest


1 /**
2  * Copyright (C) 2006 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package com.google.inject.util;
18
19 import junit.framework.TestCase;
20
21 /**
22  * @author crazybob@google.com (Bob Lee)
23  */
24 public class FinalizableReferenceQueueTest extends TestCase {
25
26   public void testFinalizeReferentCalled() {
27     MockReference reference = new MockReference();
28     reference.enqueue();
29     // wait up to 5s
30 for (int i = 0; i < 50; i++) {
31       if (reference.finalizeReferentCalled) {
32         return;
33       }
34       try {
35         Thread.sleep(10);
36       } catch (InterruptedException JavaDoc e) { /* ignore */ }
37     }
38     fail();
39   }
40
41   static class MockReference extends FinalizableWeakReference<Object JavaDoc> {
42
43     boolean finalizeReferentCalled;
44
45     MockReference() {
46       super(new Object JavaDoc());
47     }
48
49     public void finalizeReferent() {
50       finalizeReferentCalled = true;
51     }
52   }
53 }
54
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