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dl |
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/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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public class CancellableTaskTest extends TestCase{ |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(CancellableTaskTest.class); |
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} |
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private static long SHORT_DELAY_MS = 100; |
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private static long MEDIUM_DELAY_MS = 1000; |
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private static long LONG_DELAY_MS = 10000; |
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public void testIsDone(){ |
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CancellableTask task = new CancellableTask(new Runnable() { |
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public void run() {} }); |
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task.run(); |
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assertTrue(task.isDone()); |
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assertFalse(task.isCancelled()); |
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} |
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public void testCancelBeforeRun() { |
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CancellableTask task = new CancellableTask(new Runnable() { |
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public void run() {} }); |
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assertTrue(task.cancel(false)); |
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task.run(); |
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assertTrue(task.isDone()); |
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assertTrue(task.isCancelled()); |
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} |
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public void testCancelBeforeRun2() { |
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CancellableTask task = new CancellableTask(new Runnable() { |
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public void run() {} }); |
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assertTrue(task.cancel(true)); |
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task.run(); |
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assertTrue(task.isDone()); |
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assertTrue(task.isCancelled()); |
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} |
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public void testCancelAfterRun() { |
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CancellableTask task = new CancellableTask(new Runnable() { |
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public void run() {} }); |
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task.run(); |
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assertFalse(task.cancel(false)); |
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assertTrue(task.isDone()); |
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assertFalse(task.isCancelled()); |
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} |
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public void testCancelInterrupt(){ |
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CancellableTask task = new CancellableTask(new Runnable() { |
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public void run() { |
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try { |
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Thread.sleep(SHORT_DELAY_MS* 2); |
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fail("should throw"); |
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} |
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catch (InterruptedException success) {} |
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} }); |
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Thread t = new Thread(task); |
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t.start(); |
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try{ |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(task.cancel(true)); |
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t.join(); |
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assertTrue(task.isDone()); |
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assertTrue(task.isCancelled()); |
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} catch(InterruptedException e){ |
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fail("unexpected exception"); |
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} |
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} |
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public void testCancelNoInterrupt(){ |
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CancellableTask task = new CancellableTask(new Runnable() { |
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public void run() { |
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try { |
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Thread.sleep(SHORT_DELAY_MS* 2); |
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} |
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catch (InterruptedException success) { |
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fail("should not interrupt"); |
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} |
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} }); |
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Thread t = new Thread(task); |
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t.start(); |
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try{ |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(task.cancel(false)); |
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t.join(); |
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assertTrue(task.isDone()); |
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assertTrue(task.isCancelled()); |
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} catch(InterruptedException e){ |
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fail("unexpected exception"); |
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} |
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} |
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} |
