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root/jsr166/jsr166/src/test/tck/ScheduledExecutorTest.java
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Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.17 by dl, Tue Jan 20 20:20:56 2004 UTC vs.
Revision 1.21 by dl, Thu Jan 22 15:17:35 2004 UTC

# Line 9 | Line 9
9   import junit.framework.*;
10   import java.util.*;
11   import java.util.concurrent.*;
12 + import java.util.concurrent.atomic.*;
13  
14   public class ScheduledExecutorTest extends JSR166TestCase {
15      public static void main(String[] args) {
# Line 104 | Line 105 | public class ScheduledExecutorTest exten
105          }
106      }
107  
108 +    static class RunnableCounter implements Runnable {
109 +        AtomicInteger count = new AtomicInteger(0);
110 +        public void run() { count.getAndIncrement(); }
111 +    }
112 +
113      /**
114       * scheduleWithFixedDelay executes runnable after given initial delay
115       */
# Line 123 | Line 129 | public class ScheduledExecutorTest exten
129      }
130      
131      /**
132 +     * scheduleAtFixedRate executes series of tasks at given rate
133 +     */
134 +    public void testFixedRateSequence() {
135 +        try {
136 +            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
137 +            RunnableCounter counter = new RunnableCounter();
138 +            ScheduledFuture h =
139 +                p1.scheduleAtFixedRate(counter, 0, 1, TimeUnit.MILLISECONDS);
140 +            Thread.sleep(SMALL_DELAY_MS);
141 +            h.cancel(true);
142 +            int c = counter.count.get();
143 +            // By time scaling conventions, we must have at least
144 +            // an execution per SHORT delay, but no more than one SHORT more
145 +            assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
146 +            assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
147 +            joinPool(p1);
148 +        } catch(Exception e){
149 +            unexpectedException();
150 +        }
151 +    }
152 +
153 +    /**
154 +     * scheduleWithFixedDelay executes series of tasks with given period
155 +     */
156 +    public void testFixedDelaySequence() {
157 +        try {
158 +            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
159 +            RunnableCounter counter = new RunnableCounter();
160 +            ScheduledFuture h =
161 +                p1.scheduleWithFixedDelay(counter, 0, 1, TimeUnit.MILLISECONDS);
162 +            Thread.sleep(SMALL_DELAY_MS);
163 +            h.cancel(true);
164 +            int c = counter.count.get();
165 +            assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
166 +            assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
167 +            joinPool(p1);
168 +        } catch(Exception e){
169 +            unexpectedException();
170 +        }
171 +    }
172 +
173 +
174 +    /**
175       *  execute (null) throws NPE
176       */
177      public void testExecuteNull() {
# Line 474 | Line 523 | public class ScheduledExecutorTest exten
523          ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
524          ScheduledFuture[] tasks = new ScheduledFuture[5];
525          for(int i = 0; i < 5; i++){
526 <            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
526 >            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
527 >        }
528 >        try {
529 >            int max = 5;
530 >            if (tasks[4].cancel(true)) --max;
531 >            if (tasks[3].cancel(true)) --max;
532 >            // There must eventually be an interference-free point at
533 >            // which purge will not fail. (At worst, when queue is empty.)
534 >            int k;
535 >            for (k = 0; k < SMALL_DELAY_MS; ++k) {
536 >                p1.purge();
537 >                long count = p1.getTaskCount();
538 >                if (count >= 0 && count <= max)
539 >                    break;
540 >                Thread.sleep(1);
541 >            }
542 >            assertTrue(k < SMALL_DELAY_MS);
543 >        } catch(Exception e) {
544 >            unexpectedException();
545 >        } finally {
546 >            joinPool(p1);
547          }
479 –        int max = 5;
480 –        if (tasks[4].cancel(true)) --max;
481 –        if (tasks[3].cancel(true)) --max;
482 –        p1.purge();
483 –        long count = p1.getTaskCount();
484 –        assertTrue(count > 0 && count <= max);
485 –        joinPool(p1);
548      }
549  
550      /**
# Line 672 | Line 734 | public class ScheduledExecutorTest exten
734          }
735      }
736  
675 –
676 –
677 –
678 –
737      /**
738       * invokeAny(null) throws NPE
739       */

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