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Comparing jsr166/src/test/tck/ScheduledExecutorSubclassTest.java (file contents):
Revision 1.29 by jsr166, Fri Jun 10 19:45:01 2011 UTC vs.
Revision 1.36 by jsr166, Mon Sep 14 03:27:11 2015 UTC

# Line 4 | Line 4
4   * http://creativecommons.org/publicdomain/zero/1.0/
5   */
6  
7 – import junit.framework.*;
8 – import java.util.*;
9 – import java.util.concurrent.*;
7   import static java.util.concurrent.TimeUnit.MILLISECONDS;
8 +
9 + import java.util.ArrayList;
10 + import java.util.List;
11 + import java.util.concurrent.BlockingQueue;
12 + import java.util.concurrent.Callable;
13 + import java.util.concurrent.CancellationException;
14 + import java.util.concurrent.CountDownLatch;
15 + import java.util.concurrent.Delayed;
16 + import java.util.concurrent.ExecutionException;
17 + import java.util.concurrent.Executors;
18 + import java.util.concurrent.ExecutorService;
19 + import java.util.concurrent.Future;
20 + import java.util.concurrent.RejectedExecutionException;
21 + import java.util.concurrent.RejectedExecutionHandler;
22 + import java.util.concurrent.RunnableScheduledFuture;
23 + import java.util.concurrent.ScheduledFuture;
24 + import java.util.concurrent.ScheduledThreadPoolExecutor;
25 + import java.util.concurrent.ThreadFactory;
26 + import java.util.concurrent.ThreadPoolExecutor;
27 + import java.util.concurrent.TimeoutException;
28 + import java.util.concurrent.TimeUnit;
29   import java.util.concurrent.atomic.AtomicInteger;
30  
31 + import junit.framework.Test;
32 + import junit.framework.TestSuite;
33 +
34   public class ScheduledExecutorSubclassTest extends JSR166TestCase {
35      public static void main(String[] args) {
36 <        junit.textui.TestRunner.run(suite());
36 >        main(suite(), args);
37      }
38      public static Test suite() {
39          return new TestSuite(ScheduledExecutorSubclassTest.class);
# Line 36 | Line 57 | public class ScheduledExecutorSubclassTe
57          }
58          public boolean isCancelled() { return task.isCancelled(); }
59          public boolean isDone() { return task.isDone(); }
60 <        public V get() throws InterruptedException,  ExecutionException {
60 >        public V get() throws InterruptedException, ExecutionException {
61              V v = task.get();
62              assertTrue(ran);
63              return v;
64          }
65 <        public V get(long time, TimeUnit unit) throws InterruptedException,  ExecutionException, TimeoutException {
65 >        public V get(long time, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
66              V v = task.get(time, unit);
67              assertTrue(ran);
68              return v;
# Line 193 | Line 214 | public class ScheduledExecutorSubclassTe
214       */
215      public void testFixedRateSequence() throws InterruptedException {
216          CustomExecutor p = new CustomExecutor(1);
217 <        RunnableCounter counter = new RunnableCounter();
218 <        ScheduledFuture h =
219 <            p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS);
220 <        delay(SMALL_DELAY_MS);
221 <        h.cancel(true);
222 <        int c = counter.count.get();
223 <        // By time scaling conventions, we must have at least
224 <        // an execution per SHORT delay, but no more than one SHORT more
225 <        assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
226 <        assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
227 <        joinPool(p);
217 >        try {
218 >            for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
219 >                long startTime = System.nanoTime();
220 >                int cycles = 10;
221 >                final CountDownLatch done = new CountDownLatch(cycles);
222 >                Runnable task = new CheckedRunnable() {
223 >                    public void realRun() { done.countDown(); }};
224 >                ScheduledFuture h =
225 >                    p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
226 >                done.await();
227 >                h.cancel(true);
228 >                double normalizedTime =
229 >                    (double) millisElapsedSince(startTime) / delay;
230 >                if (normalizedTime >= cycles - 1 &&
231 >                    normalizedTime <= cycles)
232 >                    return;
233 >            }
234 >            throw new AssertionError("unexpected execution rate");
235 >        } finally {
236 >            joinPool(p);
237 >        }
238      }
239  
240      /**
# Line 211 | Line 242 | public class ScheduledExecutorSubclassTe
242       */
243      public void testFixedDelaySequence() throws InterruptedException {
244          CustomExecutor p = new CustomExecutor(1);
245 <        RunnableCounter counter = new RunnableCounter();
246 <        ScheduledFuture h =
247 <            p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS);
248 <        delay(SMALL_DELAY_MS);
249 <        h.cancel(true);
250 <        int c = counter.count.get();
251 <        assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
252 <        assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
253 <        joinPool(p);
245 >        try {
246 >            for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
247 >                long startTime = System.nanoTime();
248 >                int cycles = 10;
249 >                final CountDownLatch done = new CountDownLatch(cycles);
250 >                Runnable task = new CheckedRunnable() {
251 >                    public void realRun() { done.countDown(); }};
252 >                ScheduledFuture h =
253 >                    p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
254 >                done.await();
255 >                h.cancel(true);
256 >                double normalizedTime =
257 >                    (double) millisElapsedSince(startTime) / delay;
258 >                if (normalizedTime >= cycles - 1 &&
259 >                    normalizedTime <= cycles)
260 >                    return;
261 >            }
262 >            throw new AssertionError("unexpected execution rate");
263 >        } finally {
264 >            joinPool(p);
265 >        }
266      }
267  
268      /**
# Line 1198 | Line 1241 | public class ScheduledExecutorSubclassTe
1241      public void testTimedInvokeAll6() throws Exception {
1242          ExecutorService e = new CustomExecutor(2);
1243          try {
1244 <            List<Callable<String>> l = new ArrayList<Callable<String>>();
1245 <            l.add(new StringTask());
1246 <            l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1247 <            l.add(new StringTask());
1248 <            List<Future<String>> futures =
1249 <                e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1250 <            assertEquals(l.size(), futures.size());
1251 <            for (Future future : futures)
1252 <                assertTrue(future.isDone());
1253 <            assertFalse(futures.get(0).isCancelled());
1254 <            assertTrue(futures.get(1).isCancelled());
1244 >            for (long timeout = timeoutMillis();;) {
1245 >                List<Callable<String>> tasks = new ArrayList<>();
1246 >                tasks.add(new StringTask("0"));
1247 >                tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1248 >                tasks.add(new StringTask("2"));
1249 >                long startTime = System.nanoTime();
1250 >                List<Future<String>> futures =
1251 >                    e.invokeAll(tasks, timeout, MILLISECONDS);
1252 >                assertEquals(tasks.size(), futures.size());
1253 >                assertTrue(millisElapsedSince(startTime) >= timeout);
1254 >                for (Future future : futures)
1255 >                    assertTrue(future.isDone());
1256 >                assertTrue(futures.get(1).isCancelled());
1257 >                try {
1258 >                    assertEquals("0", futures.get(0).get());
1259 >                    assertEquals("2", futures.get(2).get());
1260 >                    break;
1261 >                } catch (CancellationException retryWithLongerTimeout) {
1262 >                    timeout *= 2;
1263 >                    if (timeout >= LONG_DELAY_MS / 2)
1264 >                        fail("expected exactly one task to be cancelled");
1265 >                }
1266 >            }
1267          } finally {
1268              joinPool(e);
1269          }

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