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dl |
1.1 |
/* |
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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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dl |
1.4 |
public class ScheduledExecutorTest extends JSR166TestCase { |
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dl |
1.1 |
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(ScheduledExecutorTest.class); |
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} |
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static class MyRunnable implements Runnable { |
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volatile boolean done = false; |
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public void run(){ |
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try{ |
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dl |
1.4 |
Thread.sleep(SMALL_DELAY_MS); |
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dl |
1.1 |
done = true; |
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dl |
1.2 |
} catch(Exception e){ |
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} |
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dl |
1.1 |
} |
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} |
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static class MyCallable implements Callable { |
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volatile boolean done = false; |
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public Object call(){ |
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try{ |
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dl |
1.4 |
Thread.sleep(SMALL_DELAY_MS); |
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dl |
1.1 |
done = true; |
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}catch(Exception e){} |
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return Boolean.TRUE; |
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} |
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} |
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public void testExecute(){ |
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try{ |
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MyRunnable runnable =new MyRunnable(); |
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ScheduledExecutor one = new ScheduledExecutor(1); |
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one.execute(runnable); |
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dl |
1.4 |
assertFalse(runnable.done); |
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Thread.sleep(SHORT_DELAY_MS); |
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dl |
1.1 |
one.shutdown(); |
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dl |
1.2 |
try{ |
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Thread.sleep(MEDIUM_DELAY_MS); |
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} catch(InterruptedException e){ |
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fail("unexpected exception"); |
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} |
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dl |
1.1 |
assertTrue(runnable.done); |
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one.shutdown(); |
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dl |
1.4 |
joinPool(one); |
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dl |
1.1 |
} |
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catch(Exception e){ |
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fail("unexpected exception"); |
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} |
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dl |
1.4 |
|
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dl |
1.1 |
} |
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public void testSchedule1(){ |
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try{ |
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MyCallable callable = new MyCallable(); |
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ScheduledExecutor one = new ScheduledExecutor(1); |
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dl |
1.2 |
Future f = one.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
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dl |
1.4 |
assertFalse(callable.done); |
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1.2 |
Thread.sleep(MEDIUM_DELAY_MS); |
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1.1 |
assertTrue(callable.done); |
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assertEquals(Boolean.TRUE, f.get()); |
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one.shutdown(); |
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1.4 |
joinPool(one); |
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1.1 |
}catch(RejectedExecutionException e){} |
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dl |
1.2 |
catch(Exception e){ |
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fail("unexpected exception"); |
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} |
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dl |
1.1 |
} |
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/** |
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* Another version of schedule, only using Runnable instead of Callable |
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*/ |
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public void testSchedule3(){ |
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try{ |
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MyRunnable runnable = new MyRunnable(); |
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ScheduledExecutor one = new ScheduledExecutor(1); |
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1.4 |
one.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertFalse(runnable.done); |
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1.2 |
Thread.sleep(MEDIUM_DELAY_MS); |
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1.1 |
assertTrue(runnable.done); |
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one.shutdown(); |
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dl |
1.4 |
joinPool(one); |
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dl |
1.1 |
} catch(Exception e){ |
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fail("unexpected exception"); |
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} |
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} |
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/** |
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* The final version of schedule, using both long, TimeUnit and Runnable |
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*/ |
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public void testSchedule4(){ |
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try{ |
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MyRunnable runnable = new MyRunnable(); |
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ScheduledExecutor one = new ScheduledExecutor(1); |
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1.2 |
one.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
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1.4 |
assertFalse(runnable.done); |
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1.2 |
Thread.sleep(MEDIUM_DELAY_MS); |
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1.1 |
assertTrue(runnable.done); |
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one.shutdown(); |
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dl |
1.4 |
joinPool(one); |
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dl |
1.1 |
} catch(Exception e){ |
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fail("unexpected exception"); |
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} |
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} |
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// exception tests |
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/** |
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dl |
1.4 |
* schedule(Runnable, long) throws RejectedExecutionException |
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1.1 |
* This occurs on an attempt to schedule a task on a shutdown executor |
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*/ |
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public void testSchedule1_RejectedExecutionException(){ |
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1.4 |
ScheduledExecutor se = new ScheduledExecutor(1); |
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dl |
1.1 |
try{ |
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se.shutdown(); |
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dl |
1.4 |
se.schedule(new NoOpRunnable(), |
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MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
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dl |
1.1 |
fail("shoud throw"); |
133 |
dl |
1.4 |
} catch(RejectedExecutionException success){ |
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} |
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joinPool(se); |
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dl |
1.1 |
} |
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/** |
140 |
dl |
1.4 |
* schedule(Callable, long, TimeUnit) throws RejectedExecutionException |
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dl |
1.1 |
* This occurs on an attempt to schedule a task on a shutdown executor |
142 |
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*/ |
143 |
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public void testSchedule2_RejectedExecutionException(){ |
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dl |
1.4 |
ScheduledExecutor se = new ScheduledExecutor(1); |
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dl |
1.1 |
try{ |
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se.shutdown(); |
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dl |
1.4 |
se.schedule(new NoOpCallable(), |
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MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
149 |
dl |
1.1 |
fail("should throw"); |
150 |
dl |
1.4 |
} catch(RejectedExecutionException success){ |
151 |
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} |
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joinPool(se); |
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dl |
1.1 |
} |
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/** |
156 |
dl |
1.4 |
* schedule(Callable, long) throws RejectedExecutionException |
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dl |
1.1 |
* This occurs on an attempt to schedule a task on a shutdown executor |
158 |
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*/ |
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public void testSchedule3_RejectedExecutionException(){ |
160 |
dl |
1.4 |
ScheduledExecutor se = new ScheduledExecutor(1); |
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try{ |
162 |
dl |
1.1 |
se.shutdown(); |
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dl |
1.4 |
se.schedule(new NoOpCallable(), |
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MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
165 |
dl |
1.1 |
fail("should throw"); |
166 |
dl |
1.4 |
} catch(RejectedExecutionException success){ |
167 |
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} |
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joinPool(se); |
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dl |
1.1 |
} |
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/** |
172 |
dl |
1.4 |
* scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws |
173 |
dl |
1.1 |
* RejectedExecutionException. |
174 |
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* This occurs on an attempt to schedule a task on a shutdown executor |
175 |
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*/ |
176 |
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public void testScheduleAtFixedRate1_RejectedExecutionException(){ |
177 |
dl |
1.4 |
ScheduledExecutor se = new ScheduledExecutor(1); |
178 |
dl |
1.1 |
try{ |
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se.shutdown(); |
180 |
dl |
1.4 |
se.scheduleAtFixedRate(new NoOpRunnable(), |
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MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
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dl |
1.1 |
fail("should throw"); |
183 |
dl |
1.4 |
} catch(RejectedExecutionException success){ |
184 |
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} |
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joinPool(se); |
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dl |
1.1 |
} |
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/** |
189 |
dl |
1.4 |
* scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws |
190 |
dl |
1.1 |
* RejectedExecutionException. |
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* This occurs on an attempt to schedule a task on a shutdown executor |
192 |
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*/ |
193 |
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public void testScheduleAtFixedRate2_RejectedExecutionException(){ |
194 |
dl |
1.4 |
ScheduledExecutor se = new ScheduledExecutor(1); |
195 |
dl |
1.1 |
try{ |
196 |
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se.shutdown(); |
197 |
dl |
1.4 |
se.scheduleAtFixedRate(new NoOpRunnable(), |
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1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
199 |
dl |
1.1 |
fail("should throw"); |
200 |
dl |
1.4 |
} catch(RejectedExecutionException success){ |
201 |
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} |
202 |
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joinPool(se); |
203 |
dl |
1.1 |
} |
204 |
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205 |
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/** |
206 |
dl |
1.4 |
* scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws |
207 |
dl |
1.1 |
* RejectedExecutionException. |
208 |
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* This occurs on an attempt to schedule a task on a shutdown executor |
209 |
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*/ |
210 |
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public void testScheduleWithFixedDelay1_RejectedExecutionException(){ |
211 |
dl |
1.4 |
ScheduledExecutor se = new ScheduledExecutor(1); |
212 |
dl |
1.1 |
try{ |
213 |
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se.shutdown(); |
214 |
dl |
1.4 |
se.scheduleWithFixedDelay(new NoOpRunnable(), |
215 |
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MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
216 |
dl |
1.1 |
fail("should throw"); |
217 |
dl |
1.4 |
} catch(RejectedExecutionException success){ |
218 |
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} |
219 |
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joinPool(se); |
220 |
dl |
1.1 |
} |
221 |
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222 |
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/** |
223 |
dl |
1.4 |
* scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws |
224 |
dl |
1.1 |
* RejectedExecutionException. |
225 |
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* This occurs on an attempt to schedule a task on a shutdown executor |
226 |
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*/ |
227 |
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public void testScheduleWithFixedDelay2_RejectedExecutionException(){ |
228 |
dl |
1.4 |
ScheduledExecutor se = new ScheduledExecutor(1); |
229 |
dl |
1.1 |
try{ |
230 |
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se.shutdown(); |
231 |
dl |
1.4 |
se.scheduleWithFixedDelay(new NoOpRunnable(), |
232 |
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1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
233 |
dl |
1.1 |
fail("should throw"); |
234 |
dl |
1.4 |
} catch(RejectedExecutionException success){ |
235 |
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} |
236 |
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joinPool(se); |
237 |
dl |
1.1 |
} |
238 |
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239 |
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/** |
240 |
dl |
1.4 |
* execute throws RejectedExecutionException |
241 |
dl |
1.1 |
* This occurs on an attempt to schedule a task on a shutdown executor |
242 |
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*/ |
243 |
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public void testExecute_RejectedExecutionException(){ |
244 |
dl |
1.4 |
ScheduledExecutor se = new ScheduledExecutor(1); |
245 |
dl |
1.1 |
try{ |
246 |
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se.shutdown(); |
247 |
dl |
1.4 |
se.execute(new NoOpRunnable()); |
248 |
dl |
1.1 |
fail("should throw"); |
249 |
dl |
1.4 |
} catch(RejectedExecutionException success){ |
250 |
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} |
251 |
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joinPool(se); |
252 |
dl |
1.2 |
} |
253 |
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254 |
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/** |
255 |
dl |
1.4 |
* getActiveCount gives correct values |
256 |
dl |
1.2 |
*/ |
257 |
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public void testGetActiveCount(){ |
258 |
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ScheduledExecutor two = new ScheduledExecutor(2); |
259 |
dl |
1.4 |
assertEquals(0, two.getActiveCount()); |
260 |
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two.execute(new SmallRunnable()); |
261 |
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try{ |
262 |
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Thread.sleep(SHORT_DELAY_MS); |
263 |
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} catch(Exception e){ |
264 |
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fail("unexpected exception"); |
265 |
dl |
1.2 |
} |
266 |
dl |
1.4 |
assertEquals(1, two.getActiveCount()); |
267 |
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joinPool(two); |
268 |
dl |
1.2 |
} |
269 |
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|
270 |
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/** |
271 |
dl |
1.4 |
* getCompleteTaskCount gives correct values |
272 |
dl |
1.2 |
*/ |
273 |
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public void testGetCompletedTaskCount(){ |
274 |
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ScheduledExecutor two = new ScheduledExecutor(2); |
275 |
dl |
1.4 |
assertEquals(0, two.getCompletedTaskCount()); |
276 |
|
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two.execute(new SmallRunnable()); |
277 |
|
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try{ |
278 |
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Thread.sleep(MEDIUM_DELAY_MS); |
279 |
|
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} catch(Exception e){ |
280 |
|
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fail("unexpected exception"); |
281 |
dl |
1.2 |
} |
282 |
dl |
1.4 |
assertEquals(1, two.getCompletedTaskCount()); |
283 |
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joinPool(two); |
284 |
dl |
1.2 |
} |
285 |
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286 |
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/** |
287 |
dl |
1.4 |
* getCorePoolSize gives correct values |
288 |
dl |
1.2 |
*/ |
289 |
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public void testGetCorePoolSize(){ |
290 |
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ScheduledExecutor one = new ScheduledExecutor(1); |
291 |
dl |
1.4 |
assertEquals(1, one.getCorePoolSize()); |
292 |
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joinPool(one); |
293 |
dl |
1.2 |
} |
294 |
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295 |
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/** |
296 |
dl |
1.4 |
* getLargestPoolSize gives correct values |
297 |
dl |
1.2 |
*/ |
298 |
|
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public void testGetLargestPoolSize(){ |
299 |
|
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ScheduledExecutor two = new ScheduledExecutor(2); |
300 |
dl |
1.4 |
assertEquals(0, two.getLargestPoolSize()); |
301 |
|
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two.execute(new SmallRunnable()); |
302 |
|
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two.execute(new SmallRunnable()); |
303 |
|
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try{ |
304 |
|
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Thread.sleep(SHORT_DELAY_MS); |
305 |
|
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} catch(Exception e){ |
306 |
|
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fail("unexpected exception"); |
307 |
dl |
1.2 |
} |
308 |
dl |
1.4 |
assertEquals(2, two.getLargestPoolSize()); |
309 |
|
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joinPool(two); |
310 |
dl |
1.2 |
} |
311 |
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|
312 |
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/** |
313 |
dl |
1.4 |
* getPoolSize gives correct values |
314 |
dl |
1.2 |
*/ |
315 |
|
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public void testGetPoolSize(){ |
316 |
|
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ScheduledExecutor one = new ScheduledExecutor(1); |
317 |
dl |
1.4 |
assertEquals(0, one.getPoolSize()); |
318 |
|
|
one.execute(new SmallRunnable()); |
319 |
|
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assertEquals(1, one.getPoolSize()); |
320 |
|
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joinPool(one); |
321 |
dl |
1.2 |
} |
322 |
|
|
|
323 |
|
|
/** |
324 |
dl |
1.4 |
* getTaskCount gives correct values |
325 |
dl |
1.2 |
*/ |
326 |
|
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public void testGetTaskCount(){ |
327 |
|
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ScheduledExecutor one = new ScheduledExecutor(1); |
328 |
dl |
1.4 |
assertEquals(0, one.getTaskCount()); |
329 |
|
|
for(int i = 0; i < 5; i++) |
330 |
|
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one.execute(new SmallRunnable()); |
331 |
|
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try{ |
332 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
333 |
|
|
} catch(Exception e){ |
334 |
|
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fail("unexpected exception"); |
335 |
dl |
1.2 |
} |
336 |
dl |
1.4 |
assertEquals(5, one.getTaskCount()); |
337 |
|
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joinPool(one); |
338 |
dl |
1.2 |
} |
339 |
|
|
|
340 |
|
|
/** |
341 |
dl |
1.4 |
* isShutDown gives correct values |
342 |
dl |
1.2 |
*/ |
343 |
|
|
public void testIsShutdown(){ |
344 |
|
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|
345 |
|
|
ScheduledExecutor one = new ScheduledExecutor(1); |
346 |
|
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try { |
347 |
|
|
assertFalse(one.isShutdown()); |
348 |
|
|
} |
349 |
|
|
finally { |
350 |
|
|
one.shutdown(); |
351 |
|
|
} |
352 |
|
|
assertTrue(one.isShutdown()); |
353 |
|
|
} |
354 |
|
|
|
355 |
|
|
|
356 |
|
|
/** |
357 |
dl |
1.4 |
* isTerminated gives correct values |
358 |
dl |
1.2 |
* Makes sure termination does not take an innapropriate |
359 |
|
|
* amount of time |
360 |
|
|
*/ |
361 |
|
|
public void testIsTerminated(){ |
362 |
|
|
ScheduledExecutor one = new ScheduledExecutor(1); |
363 |
|
|
try { |
364 |
dl |
1.4 |
one.execute(new SmallRunnable()); |
365 |
dl |
1.2 |
} finally { |
366 |
|
|
one.shutdown(); |
367 |
|
|
} |
368 |
dl |
1.4 |
try { |
369 |
|
|
assertTrue(one.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS)); |
370 |
|
|
assertTrue(one.isTerminated()); |
371 |
dl |
1.2 |
} catch(Exception e){ |
372 |
|
|
fail("unexpected exception"); |
373 |
|
|
} |
374 |
|
|
} |
375 |
|
|
|
376 |
|
|
/** |
377 |
dl |
1.4 |
* that purge correctly removes cancelled tasks |
378 |
dl |
1.2 |
* from the queue |
379 |
|
|
*/ |
380 |
|
|
public void testPurge(){ |
381 |
|
|
ScheduledExecutor one = new ScheduledExecutor(1); |
382 |
dl |
1.4 |
ScheduledCancellable[] tasks = new ScheduledCancellable[5]; |
383 |
|
|
for(int i = 0; i < 5; i++){ |
384 |
|
|
tasks[i] = one.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS); |
385 |
dl |
1.2 |
} |
386 |
dl |
1.4 |
int max = 5; |
387 |
|
|
if (tasks[4].cancel(true)) --max; |
388 |
|
|
if (tasks[3].cancel(true)) --max; |
389 |
|
|
one.purge(); |
390 |
|
|
long count = one.getTaskCount(); |
391 |
|
|
assertTrue(count > 0 && count <= max); |
392 |
|
|
joinPool(one); |
393 |
dl |
1.2 |
} |
394 |
|
|
|
395 |
|
|
/** |
396 |
dl |
1.4 |
* shutDownNow returns a list |
397 |
dl |
1.2 |
* containing the correct number of elements |
398 |
|
|
*/ |
399 |
|
|
public void testShutDownNow(){ |
400 |
|
|
ScheduledExecutor one = new ScheduledExecutor(1); |
401 |
|
|
for(int i = 0; i < 5; i++) |
402 |
dl |
1.4 |
one.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
403 |
dl |
1.2 |
List l = one.shutdownNow(); |
404 |
|
|
assertTrue(one.isShutdown()); |
405 |
|
|
assertTrue(l.size() > 0 && l.size() <= 5); |
406 |
dl |
1.4 |
joinPool(one); |
407 |
dl |
1.2 |
} |
408 |
|
|
|
409 |
|
|
public void testShutDown1(){ |
410 |
|
|
try { |
411 |
|
|
ScheduledExecutor one = new ScheduledExecutor(1); |
412 |
|
|
assertTrue(one.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
413 |
|
|
assertFalse(one.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
414 |
|
|
|
415 |
|
|
ScheduledCancellable[] tasks = new ScheduledCancellable[5]; |
416 |
|
|
for(int i = 0; i < 5; i++) |
417 |
dl |
1.4 |
tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
418 |
dl |
1.2 |
one.shutdown(); |
419 |
|
|
BlockingQueue q = one.getQueue(); |
420 |
|
|
for (Iterator it = q.iterator(); it.hasNext();) { |
421 |
|
|
ScheduledCancellable t = (ScheduledCancellable)it.next(); |
422 |
|
|
assertFalse(t.isCancelled()); |
423 |
|
|
} |
424 |
|
|
assertTrue(one.isShutdown()); |
425 |
dl |
1.4 |
Thread.sleep(SMALL_DELAY_MS); |
426 |
dl |
1.2 |
for (int i = 0; i < 5; ++i) { |
427 |
|
|
assertTrue(tasks[i].isDone()); |
428 |
|
|
assertFalse(tasks[i].isCancelled()); |
429 |
|
|
} |
430 |
|
|
|
431 |
|
|
} |
432 |
|
|
catch(Exception ex) { |
433 |
|
|
fail("unexpected exception"); |
434 |
|
|
} |
435 |
|
|
} |
436 |
|
|
|
437 |
|
|
|
438 |
|
|
public void testShutDown2(){ |
439 |
|
|
try { |
440 |
|
|
ScheduledExecutor one = new ScheduledExecutor(1); |
441 |
|
|
one.setExecuteExistingDelayedTasksAfterShutdownPolicy(false); |
442 |
|
|
ScheduledCancellable[] tasks = new ScheduledCancellable[5]; |
443 |
|
|
for(int i = 0; i < 5; i++) |
444 |
dl |
1.4 |
tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
445 |
dl |
1.2 |
one.shutdown(); |
446 |
|
|
assertTrue(one.isShutdown()); |
447 |
|
|
BlockingQueue q = one.getQueue(); |
448 |
|
|
assertTrue(q.isEmpty()); |
449 |
dl |
1.4 |
Thread.sleep(SMALL_DELAY_MS); |
450 |
dl |
1.2 |
assertTrue(one.isTerminated()); |
451 |
|
|
} |
452 |
|
|
catch(Exception ex) { |
453 |
|
|
fail("unexpected exception"); |
454 |
|
|
} |
455 |
|
|
} |
456 |
|
|
|
457 |
|
|
|
458 |
|
|
public void testShutDown3(){ |
459 |
|
|
try { |
460 |
|
|
ScheduledExecutor one = new ScheduledExecutor(1); |
461 |
|
|
one.setContinueExistingPeriodicTasksAfterShutdownPolicy(false); |
462 |
|
|
ScheduledCancellable task = |
463 |
dl |
1.4 |
one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS); |
464 |
dl |
1.2 |
one.shutdown(); |
465 |
|
|
assertTrue(one.isShutdown()); |
466 |
|
|
BlockingQueue q = one.getQueue(); |
467 |
|
|
assertTrue(q.isEmpty()); |
468 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
469 |
|
|
assertTrue(one.isTerminated()); |
470 |
|
|
} |
471 |
|
|
catch(Exception ex) { |
472 |
|
|
fail("unexpected exception"); |
473 |
|
|
} |
474 |
|
|
} |
475 |
|
|
|
476 |
|
|
public void testShutDown4(){ |
477 |
|
|
ScheduledExecutor one = new ScheduledExecutor(1); |
478 |
|
|
try { |
479 |
|
|
one.setContinueExistingPeriodicTasksAfterShutdownPolicy(true); |
480 |
|
|
ScheduledCancellable task = |
481 |
dl |
1.4 |
one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS); |
482 |
dl |
1.2 |
assertFalse(task.isCancelled()); |
483 |
|
|
one.shutdown(); |
484 |
|
|
assertFalse(task.isCancelled()); |
485 |
|
|
assertFalse(one.isTerminated()); |
486 |
|
|
assertTrue(one.isShutdown()); |
487 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
488 |
|
|
assertFalse(task.isCancelled()); |
489 |
|
|
task.cancel(true); |
490 |
|
|
assertTrue(task.isCancelled()); |
491 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
492 |
|
|
assertTrue(one.isTerminated()); |
493 |
|
|
} |
494 |
|
|
catch(Exception ex) { |
495 |
|
|
fail("unexpected exception"); |
496 |
|
|
} |
497 |
|
|
finally { |
498 |
|
|
one.shutdownNow(); |
499 |
|
|
} |
500 |
dl |
1.1 |
} |
501 |
|
|
|
502 |
|
|
} |