1 /*
   2  * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  @test
  26  @summary Make sure that Thread.interrupt() works
  27  @summary Simple test for interrupting Thread.sleep
  28  @summary com.apple.junit.java.lang.Thread;
  29  @run main InterruptSleepTest
  30  */
  31 
  32 import junit.framework.*;
  33 
  34 public class InterruptSleepTest extends TestCase {
  35     public static Test suite() {
  36         return new TestSuite(InterruptSleepTest.class);
  37     }
  38 
  39     public static void main (String[] args) throws RuntimeException {
  40         TestResult tr = junit.textui.TestRunner.run(suite());
  41         if((tr.errorCount() != 0) || (tr.failureCount() != 0)) {
  42             throw new RuntimeException("### Unexpected JUnit errors or failures.");
  43         }
  44     }
  45 
  46     final static Object o = new Object();
  47     static volatile boolean in_sleep = false;
  48     static volatile boolean interrupt_worked = false;
  49     public static void testCase() {
  50         Thread t = new Thread(new Runnable() { public void run() {
  51             try {
  52                     in_sleep = true;
  53                     //System.out.println("sleep");
  54                     Thread.sleep(6000); // just a bit
  55                     in_sleep = false;
  56             } catch(Exception e) {
  57                 //System.out.println(Thread.currentThread().getName() + " caught " + e);
  58                 //e.printStackTrace();
  59                 interrupt_worked = true;
  60                 in_sleep = false;
  61             }
  62         }});
  63         t.start();
  64         while (!in_sleep) {} // Lame
  65         synchronized(o) {
  66             //System.out.println("interrupt");
  67             t.interrupt();
  68         }
  69         while (in_sleep) {} // spin while we are still in the sleep
  70         assertTrue(interrupt_worked);
  71     }
  72 }