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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    * 
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.io;
18  
19  import junit.framework.TestCase;
20  
21  /**
22   * Tests for {@link ThreadMonitor}.
23   */
24  public class ThreadMonitorTestCase extends TestCase {
25  
26  
27      public ThreadMonitorTestCase(final String name) {
28          super(name);
29      }
30  
31      /**
32       * Test timeout.
33       */
34      public void testTimeout() {
35          try {
36              final Thread monitor = ThreadMonitor.start(100);
37              Thread.sleep(200);
38              ThreadMonitor.stop(monitor);
39              fail("Expected InterruptedException");
40          } catch (final InterruptedException e) {
41              // expected result - timout
42          }
43      }
44  
45      /**
46       * Test task completed before timeout.
47       */
48      public void testCompletedWithoutTimeout() {
49          try {
50              final Thread monitor = ThreadMonitor.start(200);
51              Thread.sleep(100);
52              ThreadMonitor.stop(monitor);
53          } catch (final InterruptedException e) {
54              fail("Timed Out");
55          }
56      }
57  
58      /**
59       * Test No timeout.
60       */
61      public void testNoTimeout() {
62  
63          // timeout = -1
64          try {
65              final Thread monitor = ThreadMonitor.start(-1);
66              assertNull("Timeout -1, Monitor should be null", monitor);
67              Thread.sleep(100);
68              ThreadMonitor.stop(monitor);
69          } catch (final Exception e) {
70              fail("Timeout -1, threw " + e);
71          }
72  
73          // timeout = 0
74          try {
75              final Thread monitor = ThreadMonitor.start(0);
76              assertNull("Timeout 0, Monitor should be null", monitor);
77              Thread.sleep(100);
78              ThreadMonitor.stop(monitor);
79          } catch (final Exception e) {
80              fail("Timeout 0, threw " + e);
81          }
82      }
83  }
84