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Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.5 by dl, Sat Sep 20 18:20:08 2003 UTC vs.
Revision 1.34 by jsr166, Mon Oct 11 15:46:40 2010 UTC

# Line 1 | Line 1
1   /*
2 < * Written by members of JCP JSR-166 Expert Group and released to the
3 < * public domain. Use, modify, and redistribute this code in any way
4 < * without acknowledgement. Other contributors include Andrew Wright,
5 < * Jeffrey Hayes, Pat Fischer, Mike Judd.
2 > * Written by Doug Lea with assistance from members of JCP JSR-166
3 > * Expert Group and released to the public domain, as explained at
4 > * http://creativecommons.org/licenses/publicdomain
5 > * Other contributors include Andrew Wright, Jeffrey Hayes,
6 > * Pat Fisher, Mike Judd.
7   */
8  
9   import junit.framework.*;
10   import java.util.*;
11   import java.util.concurrent.*;
12 + import static java.util.concurrent.TimeUnit.MILLISECONDS;
13 + import java.util.concurrent.atomic.*;
14  
15   public class ScheduledExecutorTest extends JSR166TestCase {
16      public static void main(String[] args) {
17 <        junit.textui.TestRunner.run (suite());  
17 >        junit.textui.TestRunner.run(suite());
18      }
19      public static Test suite() {
20 <        return new TestSuite(ScheduledExecutorTest.class);
20 >        return new TestSuite(ScheduledExecutorTest.class);
21      }
22  
23 <    static class MyRunnable implements Runnable {
24 <        volatile boolean done = false;
25 <        public void run() {
26 <            try {
27 <                Thread.sleep(SMALL_DELAY_MS);
28 <                done = true;
29 <            } catch(Exception e){
30 <            }
23 >
24 >    /**
25 >     * execute successfully executes a runnable
26 >     */
27 >    public void testExecute() throws InterruptedException {
28 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
29 >        final CountDownLatch done = new CountDownLatch(1);
30 >        final Runnable task = new CheckedRunnable() {
31 >            public void realRun() {
32 >                done.countDown();
33 >            }};
34 >        try {
35 >            p.execute(task);
36 >            assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
37 >        } finally {
38 >            joinPool(p);
39          }
40      }
41  
42 <    static class MyCallable implements Callable {
43 <        volatile boolean done = false;
44 <        public Object call() {
45 <            try {
46 <                Thread.sleep(SMALL_DELAY_MS);
47 <                done = true;
48 <            } catch(Exception e){
49 <            }
50 <            return Boolean.TRUE;
42 >
43 >    /**
44 >     * delayed schedule of callable successfully executes after delay
45 >     */
46 >    public void testSchedule1() throws Exception {
47 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
48 >        final long t0 = System.nanoTime();
49 >        final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
50 >        final CountDownLatch done = new CountDownLatch(1);
51 >        try {
52 >            Callable task = new CheckedCallable<Boolean>() {
53 >                public Boolean realCall() {
54 >                    done.countDown();
55 >                    assertTrue(System.nanoTime() - t0 >= timeoutNanos);
56 >                    return Boolean.TRUE;
57 >                }};
58 >            Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS);
59 >            assertEquals(Boolean.TRUE, f.get());
60 >            assertTrue(System.nanoTime() - t0 >= timeoutNanos);
61 >            assertTrue(done.await(0L, MILLISECONDS));
62 >        } finally {
63 >            joinPool(p);
64          }
65      }
66  
67      /**
68 <     *
68 >     * delayed schedule of runnable successfully executes after delay
69       */
70 <    public void testExecute() {
71 <        try {
72 <            MyRunnable runnable =new MyRunnable();
73 <            ScheduledExecutor p1 = new ScheduledExecutor(1);
74 <            p1.execute(runnable);
75 <            assertFalse(runnable.done);
76 <            Thread.sleep(SHORT_DELAY_MS);
77 <            p1.shutdown();
78 <            try {
79 <                Thread.sleep(MEDIUM_DELAY_MS);
80 <            } catch(InterruptedException e){
81 <                unexpectedException();
82 <            }
83 <            assertTrue(runnable.done);
84 <            p1.shutdown();
85 <            joinPool(p1);
86 <        }
63 <        catch(Exception e){
64 <            unexpectedException();
70 >    public void testSchedule3() throws Exception {
71 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
72 >        final long t0 = System.nanoTime();
73 >        final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
74 >        final CountDownLatch done = new CountDownLatch(1);
75 >        try {
76 >            Runnable task = new CheckedRunnable() {
77 >                public void realRun() {
78 >                    done.countDown();
79 >                    assertTrue(System.nanoTime() - t0 >= timeoutNanos);
80 >                }};
81 >            Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS);
82 >            assertNull(f.get());
83 >            assertTrue(System.nanoTime() - t0 >= timeoutNanos);
84 >            assertTrue(done.await(0L, MILLISECONDS));
85 >        } finally {
86 >            joinPool(p);
87          }
66        
88      }
89  
90      /**
91 <     *
91 >     * scheduleAtFixedRate executes runnable after given initial delay
92       */
93 <    public void testSchedule1() {
94 <        try {
95 <            MyCallable callable = new MyCallable();
96 <            ScheduledExecutor p1 = new ScheduledExecutor(1);
97 <            Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
98 <            assertFalse(callable.done);
99 <            Thread.sleep(MEDIUM_DELAY_MS);
100 <            assertTrue(callable.done);
101 <            assertEquals(Boolean.TRUE, f.get());
102 <            p1.shutdown();
103 <            joinPool(p1);
104 <        } catch(RejectedExecutionException e){}
105 <        catch(Exception e){
106 <            unexpectedException();
93 >    public void testSchedule4() throws Exception {
94 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
95 >        final long t0 = System.nanoTime();
96 >        final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
97 >        final CountDownLatch done = new CountDownLatch(1);
98 >        try {
99 >            Runnable task = new CheckedRunnable() {
100 >                public void realRun() {
101 >                    done.countDown();
102 >                    assertTrue(System.nanoTime() - t0 >= timeoutNanos);
103 >                }};
104 >            ScheduledFuture f =
105 >                p.scheduleAtFixedRate(task, SHORT_DELAY_MS,
106 >                                      SHORT_DELAY_MS, MILLISECONDS);
107 >            assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
108 >            assertTrue(System.nanoTime() - t0 >= timeoutNanos);
109 >            f.cancel(true);
110 >        } finally {
111 >            joinPool(p);
112          }
113      }
114  
115      /**
116 <     *  
116 >     * scheduleWithFixedDelay executes runnable after given initial delay
117       */
118 <    public void testSchedule3() {
119 <        try {
120 <            MyRunnable runnable = new MyRunnable();
121 <            ScheduledExecutor p1 = new ScheduledExecutor(1);
122 <            p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
123 <            Thread.sleep(SHORT_DELAY_MS);
124 <            assertFalse(runnable.done);
125 <            Thread.sleep(MEDIUM_DELAY_MS);
126 <            assertTrue(runnable.done);
127 <            p1.shutdown();
128 <            joinPool(p1);
129 <        } catch(Exception e){
130 <            unexpectedException();
118 >    public void testSchedule5() throws InterruptedException {
119 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
120 >        final long t0 = System.nanoTime();
121 >        final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
122 >        final CountDownLatch done = new CountDownLatch(1);
123 >        try {
124 >            Runnable task = new CheckedRunnable() {
125 >                public void realRun() {
126 >                    done.countDown();
127 >                    assertTrue(System.nanoTime() - t0 >= timeoutNanos);
128 >                }};
129 >            ScheduledFuture f =
130 >                p.scheduleWithFixedDelay(task, SHORT_DELAY_MS,
131 >                                         SHORT_DELAY_MS, MILLISECONDS);
132 >            assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
133 >            assertTrue(System.nanoTime() - t0 >= timeoutNanos);
134 >            f.cancel(true);
135 >        } finally {
136 >            joinPool(p);
137          }
138      }
139 <    
139 >
140 >    static class RunnableCounter implements Runnable {
141 >        AtomicInteger count = new AtomicInteger(0);
142 >        public void run() { count.getAndIncrement(); }
143 >    }
144 >
145      /**
146 <     *
146 >     * scheduleAtFixedRate executes series of tasks at given rate
147       */
148 <    public void testSchedule4() {
149 <        try {
150 <            MyRunnable runnable = new MyRunnable();
151 <            ScheduledExecutor p1 = new ScheduledExecutor(1);
152 <            p1.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
153 <            assertFalse(runnable.done);
154 <            Thread.sleep(MEDIUM_DELAY_MS);
155 <            assertTrue(runnable.done);
156 <            p1.shutdown();
157 <            joinPool(p1);
158 <        } catch(Exception e){
159 <            unexpectedException();
160 <        }
148 >    public void testFixedRateSequence() throws InterruptedException {
149 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
150 >        RunnableCounter counter = new RunnableCounter();
151 >        ScheduledFuture h =
152 >            p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS);
153 >        Thread.sleep(SMALL_DELAY_MS);
154 >        h.cancel(true);
155 >        int c = counter.count.get();
156 >        // By time scaling conventions, we must have at least
157 >        // an execution per SHORT delay, but no more than one SHORT more
158 >        assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
159 >        assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
160 >        joinPool(p);
161 >    }
162 >
163 >    /**
164 >     * scheduleWithFixedDelay executes series of tasks with given period
165 >     */
166 >    public void testFixedDelaySequence() throws InterruptedException {
167 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
168 >        RunnableCounter counter = new RunnableCounter();
169 >        ScheduledFuture h =
170 >            p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS);
171 >        Thread.sleep(SMALL_DELAY_MS);
172 >        h.cancel(true);
173 >        int c = counter.count.get();
174 >        assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
175 >        assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
176 >        joinPool(p);
177      }
178 <    
126 <  
127 <    // exception tests
178 >
179  
180      /**
181 <     *   schedule(Runnable, long) throws RejectedExecutionException
131 <     *  This occurs on an attempt to schedule a task on a shutdown executor
181 >     * execute(null) throws NPE
182       */
183 <    public void testSchedule1_RejectedExecutionException() {
184 <        ScheduledExecutor se = new ScheduledExecutor(1);
183 >    public void testExecuteNull() throws InterruptedException {
184 >        ScheduledThreadPoolExecutor se = null;
185 >        try {
186 >            se = new ScheduledThreadPoolExecutor(1);
187 >            se.execute(null);
188 >            shouldThrow();
189 >        } catch (NullPointerException success) {}
190 >
191 >        joinPool(se);
192 >    }
193 >
194 >    /**
195 >     * schedule(null) throws NPE
196 >     */
197 >    public void testScheduleNull() throws InterruptedException {
198 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
199 >        try {
200 >            TrackedCallable callable = null;
201 >            Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
202 >            shouldThrow();
203 >        } catch (NullPointerException success) {}
204 >        joinPool(se);
205 >    }
206 >
207 >    /**
208 >     * execute throws RejectedExecutionException if shutdown
209 >     */
210 >    public void testSchedule1_RejectedExecutionException() throws InterruptedException {
211 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
212          try {
213              se.shutdown();
214              se.schedule(new NoOpRunnable(),
215 <                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
215 >                        MEDIUM_DELAY_MS, MILLISECONDS);
216              shouldThrow();
217 <        } catch(RejectedExecutionException success){
217 >        } catch (RejectedExecutionException success) {
218 >        } catch (SecurityException ok) {
219          }
142        joinPool(se);
220  
221 +        joinPool(se);
222      }
223  
224      /**
225 <     *   schedule(Callable, long, TimeUnit) throws RejectedExecutionException
148 <     *  This occurs on an attempt to schedule a task on a shutdown executor
225 >     * schedule throws RejectedExecutionException if shutdown
226       */
227 <    public void testSchedule2_RejectedExecutionException() {
228 <        ScheduledExecutor se = new ScheduledExecutor(1);
227 >    public void testSchedule2_RejectedExecutionException() throws InterruptedException {
228 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
229          try {
230              se.shutdown();
231              se.schedule(new NoOpCallable(),
232 <                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
232 >                        MEDIUM_DELAY_MS, MILLISECONDS);
233              shouldThrow();
234 <        } catch(RejectedExecutionException success){
234 >        } catch (RejectedExecutionException success) {
235 >        } catch (SecurityException ok) {
236          }
237          joinPool(se);
238      }
239  
240      /**
241 <     *   schedule(Callable, long) throws RejectedExecutionException
164 <     *  This occurs on an attempt to schedule a task on a shutdown executor
241 >     * schedule callable throws RejectedExecutionException if shutdown
242       */
243 <     public void testSchedule3_RejectedExecutionException() {
244 <         ScheduledExecutor se = new ScheduledExecutor(1);
243 >     public void testSchedule3_RejectedExecutionException() throws InterruptedException {
244 >         ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
245           try {
246              se.shutdown();
247              se.schedule(new NoOpCallable(),
248 <                        MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
248 >                        MEDIUM_DELAY_MS, MILLISECONDS);
249              shouldThrow();
250 <        } catch(RejectedExecutionException success){
251 <        }
250 >        } catch (RejectedExecutionException success) {
251 >        } catch (SecurityException ok) {
252 >        }
253           joinPool(se);
254      }
255  
256      /**
257 <     *   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
180 <     *  RejectedExecutionException.
181 <     *  This occurs on an attempt to schedule a task on a shutdown executor
257 >     * scheduleAtFixedRate throws RejectedExecutionException if shutdown
258       */
259 <    public void testScheduleAtFixedRate1_RejectedExecutionException() {
260 <        ScheduledExecutor se = new ScheduledExecutor(1);
259 >    public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
260 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
261          try {
262              se.shutdown();
263              se.scheduleAtFixedRate(new NoOpRunnable(),
264 <                                   MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
264 >                                   MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
265              shouldThrow();
266 <        } catch(RejectedExecutionException success){
267 <        }
266 >        } catch (RejectedExecutionException success) {
267 >        } catch (SecurityException ok) {
268 >        }
269          joinPool(se);
270      }
271 <    
271 >
272      /**
273 <     *   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
197 <     *  RejectedExecutionException.
198 <     *  This occurs on an attempt to schedule a task on a shutdown executor
273 >     * scheduleWithFixedDelay throws RejectedExecutionException if shutdown
274       */
275 <    public void testScheduleAtFixedRate2_RejectedExecutionException() {
276 <        ScheduledExecutor se = new ScheduledExecutor(1);
275 >    public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
276 >        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
277          try {
278              se.shutdown();
279 <            se.scheduleAtFixedRate(new NoOpRunnable(),
280 <                                   1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
279 >            se.scheduleWithFixedDelay(new NoOpRunnable(),
280 >                                      MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
281              shouldThrow();
282 <        } catch(RejectedExecutionException success){
283 <        }
282 >        } catch (RejectedExecutionException success) {
283 >        } catch (SecurityException ok) {
284 >        }
285          joinPool(se);
286      }
287  
288      /**
289 <     *   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
290 <     *  RejectedExecutionException.
215 <     *  This occurs on an attempt to schedule a task on a shutdown executor
289 >     * getActiveCount increases but doesn't overestimate, when a
290 >     * thread becomes active
291       */
292 <    public void testScheduleWithFixedDelay1_RejectedExecutionException() {
293 <        ScheduledExecutor se = new ScheduledExecutor(1);
292 >    public void testGetActiveCount() throws InterruptedException {
293 >        final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
294 >        final CountDownLatch threadStarted = new CountDownLatch(1);
295 >        final CountDownLatch done = new CountDownLatch(1);
296          try {
297 <            se.shutdown();
298 <            se.scheduleWithFixedDelay(new NoOpRunnable(),
299 <                                      MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
300 <            shouldThrow();
301 <        } catch(RejectedExecutionException success){
302 <        }
303 <        joinPool(se);
297 >            assertEquals(0, p.getActiveCount());
298 >            p.execute(new CheckedRunnable() {
299 >                public void realRun() throws InterruptedException {
300 >                    threadStarted.countDown();
301 >                    assertEquals(1, p.getActiveCount());
302 >                    done.await();
303 >                }});
304 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
305 >            assertEquals(1, p.getActiveCount());
306 >        } finally {
307 >            done.countDown();
308 >            joinPool(p);
309 >        }
310      }
311  
312      /**
313 <     *   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
314 <     *  RejectedExecutionException.
232 <     *  This occurs on an attempt to schedule a task on a shutdown executor
313 >     * getCompletedTaskCount increases, but doesn't overestimate,
314 >     * when tasks complete
315       */
316 <     public void testScheduleWithFixedDelay2_RejectedExecutionException() {
317 <         ScheduledExecutor se = new ScheduledExecutor(1);
316 >    public void testGetCompletedTaskCount() throws InterruptedException {
317 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
318 >        final CountDownLatch threadStarted = new CountDownLatch(1);
319 >        final CountDownLatch threadProceed = new CountDownLatch(1);
320 >        final CountDownLatch threadDone = new CountDownLatch(1);
321          try {
322 <            se.shutdown();
323 <            se.scheduleWithFixedDelay(new NoOpRunnable(),
324 <                                      1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
325 <            shouldThrow();
326 <        } catch(RejectedExecutionException success){
327 <        }
328 <        joinPool(se);
322 >            assertEquals(0, p.getCompletedTaskCount());
323 >            p.execute(new CheckedRunnable() {
324 >                public void realRun() throws InterruptedException {
325 >                    threadStarted.countDown();
326 >                    assertEquals(0, p.getCompletedTaskCount());
327 >                    threadProceed.await();
328 >                    threadDone.countDown();
329 >                }});
330 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
331 >            assertEquals(0, p.getCompletedTaskCount());
332 >            threadProceed.countDown();
333 >            threadDone.await();
334 >            Thread.sleep(SHORT_DELAY_MS);
335 >            assertEquals(1, p.getCompletedTaskCount());
336 >        } finally {
337 >            joinPool(p);
338 >        }
339      }
340  
341      /**
342 <     *   execute throws RejectedExecutionException
248 <     *  This occurs on an attempt to schedule a task on a shutdown executor
342 >     * getCorePoolSize returns size given in constructor if not otherwise set
343       */
344 <    public void testExecute_RejectedExecutionException() {
345 <        ScheduledExecutor se = new ScheduledExecutor(1);
344 >    public void testGetCorePoolSize() throws InterruptedException {
345 >        ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
346 >        assertEquals(1, p.getCorePoolSize());
347 >        joinPool(p);
348 >    }
349 >
350 >    /**
351 >     * getLargestPoolSize increases, but doesn't overestimate, when
352 >     * multiple threads active
353 >     */
354 >    public void testGetLargestPoolSize() throws InterruptedException {
355 >        final int THREADS = 3;
356 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
357 >        final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
358 >        final CountDownLatch done = new CountDownLatch(1);
359          try {
360 <            se.shutdown();
361 <            se.execute(new NoOpRunnable());
360 >            assertEquals(0, p.getLargestPoolSize());
361 >            for (int i = 0; i < THREADS; i++)
362 >                p.execute(new CheckedRunnable() {
363 >                    public void realRun() throws InterruptedException {
364 >                        threadsStarted.countDown();
365 >                        done.await();
366 >                        assertEquals(THREADS, p.getLargestPoolSize());
367 >                    }});
368 >            assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS));
369 >            assertEquals(THREADS, p.getLargestPoolSize());
370 >        } finally {
371 >            done.countDown();
372 >            joinPool(p);
373 >            assertEquals(THREADS, p.getLargestPoolSize());
374 >        }
375 >    }
376 >
377 >    /**
378 >     * getPoolSize increases, but doesn't overestimate, when threads
379 >     * become active
380 >     */
381 >    public void testGetPoolSize() throws InterruptedException {
382 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
383 >        final CountDownLatch threadStarted = new CountDownLatch(1);
384 >        final CountDownLatch done = new CountDownLatch(1);
385 >        try {
386 >            assertEquals(0, p.getPoolSize());
387 >            p.execute(new CheckedRunnable() {
388 >                public void realRun() throws InterruptedException {
389 >                    threadStarted.countDown();
390 >                    assertEquals(1, p.getPoolSize());
391 >                    done.await();
392 >                }});
393 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
394 >            assertEquals(1, p.getPoolSize());
395 >        } finally {
396 >            done.countDown();
397 >            joinPool(p);
398 >        }
399 >    }
400 >
401 >    /**
402 >     * getTaskCount increases, but doesn't overestimate, when tasks
403 >     * submitted
404 >     */
405 >    public void testGetTaskCount() throws InterruptedException {
406 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
407 >        final CountDownLatch threadStarted = new CountDownLatch(1);
408 >        final CountDownLatch done = new CountDownLatch(1);
409 >        final int TASKS = 5;
410 >        try {
411 >            assertEquals(0, p.getTaskCount());
412 >            for (int i = 0; i < TASKS; i++)
413 >                p.execute(new CheckedRunnable() {
414 >                    public void realRun() throws InterruptedException {
415 >                        threadStarted.countDown();
416 >                        done.await();
417 >                    }});
418 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
419 >            assertEquals(TASKS, p.getTaskCount());
420 >        } finally {
421 >            done.countDown();
422 >            joinPool(p);
423 >        }
424 >    }
425 >
426 >    /**
427 >     * getThreadFactory returns factory in constructor if not set
428 >     */
429 >    public void testGetThreadFactory() throws InterruptedException {
430 >        ThreadFactory tf = new SimpleThreadFactory();
431 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
432 >        assertSame(tf, p.getThreadFactory());
433 >        joinPool(p);
434 >    }
435 >
436 >    /**
437 >     * setThreadFactory sets the thread factory returned by getThreadFactory
438 >     */
439 >    public void testSetThreadFactory() throws InterruptedException {
440 >        ThreadFactory tf = new SimpleThreadFactory();
441 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
442 >        p.setThreadFactory(tf);
443 >        assertSame(tf, p.getThreadFactory());
444 >        joinPool(p);
445 >    }
446 >
447 >    /**
448 >     * setThreadFactory(null) throws NPE
449 >     */
450 >    public void testSetThreadFactoryNull() throws InterruptedException {
451 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
452 >        try {
453 >            p.setThreadFactory(null);
454              shouldThrow();
455 <        } catch(RejectedExecutionException success){
456 <        }
457 <        joinPool(se);
455 >        } catch (NullPointerException success) {
456 >        } finally {
457 >            joinPool(p);
458 >        }
459      }
460  
461      /**
462 <     *   getActiveCount gives correct values
462 >     * isShutDown is false before shutdown, true after
463       */
464 <    public void testGetActiveCount() {
465 <        ScheduledExecutor p2 = new ScheduledExecutor(2);
466 <        assertEquals(0, p2.getActiveCount());
267 <        p2.execute(new SmallRunnable());
464 >    public void testIsShutdown() {
465 >
466 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
467          try {
468 <            Thread.sleep(SHORT_DELAY_MS);
469 <        } catch(Exception e){
470 <            unexpectedException();
468 >            assertFalse(p.isShutdown());
469 >        }
470 >        finally {
471 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
472          }
473 <        assertEquals(1, p2.getActiveCount());
274 <        joinPool(p2);
473 >        assertTrue(p.isShutdown());
474      }
475 <    
475 >
476 >
477      /**
478 <     *   getCompleteTaskCount gives correct values
478 >     * isTerminated is false before termination, true after
479       */
480 <    public void testGetCompletedTaskCount() {
481 <        ScheduledExecutor p2 = new ScheduledExecutor(2);
482 <        assertEquals(0, p2.getCompletedTaskCount());
483 <        p2.execute(new SmallRunnable());
480 >    public void testIsTerminated() throws InterruptedException {
481 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
482 >        final CountDownLatch threadStarted = new CountDownLatch(1);
483 >        final CountDownLatch done = new CountDownLatch(1);
484 >        assertFalse(p.isTerminated());
485          try {
486 <            Thread.sleep(MEDIUM_DELAY_MS);
487 <        } catch(Exception e){
488 <            unexpectedException();
486 >            p.execute(new CheckedRunnable() {
487 >                public void realRun() throws InterruptedException {
488 >                    threadStarted.countDown();
489 >                    assertFalse(p.isTerminated());
490 >                    done.await();
491 >                }});
492 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
493 >            done.countDown();
494 >        } finally {
495 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
496          }
497 <        assertEquals(1, p2.getCompletedTaskCount());
498 <        joinPool(p2);
497 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
498 >        assertTrue(p.isTerminated());
499      }
500 <    
500 >
501      /**
502 <     *   getCorePoolSize gives correct values
502 >     * isTerminating is not true when running or when terminated
503       */
504 <    public void testGetCorePoolSize() {
505 <        ScheduledExecutor p1 = new ScheduledExecutor(1);
506 <        assertEquals(1, p1.getCorePoolSize());
507 <        joinPool(p1);
504 >    public void testIsTerminating() throws InterruptedException {
505 >        final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
506 >        final CountDownLatch threadStarted = new CountDownLatch(1);
507 >        final CountDownLatch done = new CountDownLatch(1);
508 >        try {
509 >            assertFalse(p.isTerminating());
510 >            p.execute(new CheckedRunnable() {
511 >                public void realRun() throws InterruptedException {
512 >                    threadStarted.countDown();
513 >                    assertFalse(p.isTerminating());
514 >                    done.await();
515 >                }});
516 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
517 >            assertFalse(p.isTerminating());
518 >            done.countDown();
519 >        } finally {
520 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
521 >        }
522 >        assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
523 >        assertTrue(p.isTerminated());
524 >        assertFalse(p.isTerminating());
525      }
526 <    
526 >
527      /**
528 <     *   getLargestPoolSize gives correct values
528 >     * getQueue returns the work queue, which contains queued tasks
529       */
530 <    public void testGetLargestPoolSize() {
531 <        ScheduledExecutor p2 = new ScheduledExecutor(2);
532 <        assertEquals(0, p2.getLargestPoolSize());
533 <        p2.execute(new SmallRunnable());
309 <        p2.execute(new SmallRunnable());
530 >    public void testGetQueue() throws InterruptedException {
531 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
532 >        final CountDownLatch threadStarted = new CountDownLatch(1);
533 >        final CountDownLatch done = new CountDownLatch(1);
534          try {
535 <            Thread.sleep(SHORT_DELAY_MS);
536 <        } catch(Exception e){
537 <            unexpectedException();
535 >            ScheduledFuture[] tasks = new ScheduledFuture[5];
536 >            for (int i = 0; i < tasks.length; i++) {
537 >                Runnable r = new CheckedRunnable() {
538 >                    public void realRun() throws InterruptedException {
539 >                        threadStarted.countDown();
540 >                        done.await();
541 >                    }};
542 >                tasks[i] = p.schedule(r, 1, MILLISECONDS);
543 >            }
544 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
545 >            BlockingQueue<Runnable> q = p.getQueue();
546 >            assertTrue(q.contains(tasks[tasks.length - 1]));
547 >            assertFalse(q.contains(tasks[0]));
548 >        } finally {
549 >            done.countDown();
550 >            joinPool(p);
551          }
315        assertEquals(2, p2.getLargestPoolSize());
316        joinPool(p2);
552      }
553 <    
553 >
554      /**
555 <     *   getPoolSize gives correct values
555 >     * remove(task) removes queued task, and fails to remove active task
556       */
557 <    public void testGetPoolSize() {
558 <        ScheduledExecutor p1 = new ScheduledExecutor(1);
559 <        assertEquals(0, p1.getPoolSize());
560 <        p1.execute(new SmallRunnable());
561 <        assertEquals(1, p1.getPoolSize());
562 <        joinPool(p1);
557 >    public void testRemove() throws InterruptedException {
558 >        final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
559 >        ScheduledFuture[] tasks = new ScheduledFuture[5];
560 >        final CountDownLatch threadStarted = new CountDownLatch(1);
561 >        final CountDownLatch done = new CountDownLatch(1);
562 >        try {
563 >            for (int i = 0; i < tasks.length; i++) {
564 >                Runnable r = new CheckedRunnable() {
565 >                    public void realRun() throws InterruptedException {
566 >                        threadStarted.countDown();
567 >                        done.await();
568 >                    }};
569 >                tasks[i] = p.schedule(r, 1, MILLISECONDS);
570 >            }
571 >            assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
572 >            BlockingQueue<Runnable> q = p.getQueue();
573 >            assertFalse(p.remove((Runnable)tasks[0]));
574 >            assertTrue(q.contains((Runnable)tasks[4]));
575 >            assertTrue(q.contains((Runnable)tasks[3]));
576 >            assertTrue(p.remove((Runnable)tasks[4]));
577 >            assertFalse(p.remove((Runnable)tasks[4]));
578 >            assertFalse(q.contains((Runnable)tasks[4]));
579 >            assertTrue(q.contains((Runnable)tasks[3]));
580 >            assertTrue(p.remove((Runnable)tasks[3]));
581 >            assertFalse(q.contains((Runnable)tasks[3]));
582 >        } finally {
583 >            done.countDown();
584 >            joinPool(p);
585 >        }
586      }
587 <    
587 >
588      /**
589 <     *   getTaskCount gives correct values
589 >     * purge removes cancelled tasks from the queue
590       */
591 <    public void testGetTaskCount() {
592 <        ScheduledExecutor p1 = new ScheduledExecutor(1);
593 <        assertEquals(0, p1.getTaskCount());
594 <        for(int i = 0; i < 5; i++)
595 <            p1.execute(new SmallRunnable());
591 >    public void testPurge() throws InterruptedException {
592 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
593 >        ScheduledFuture[] tasks = new ScheduledFuture[5];
594 >        for (int i = 0; i < tasks.length; i++) {
595 >            tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS);
596 >        }
597          try {
598 <            Thread.sleep(SHORT_DELAY_MS);
599 <        } catch(Exception e){
600 <            unexpectedException();
598 >            int max = tasks.length;
599 >            if (tasks[4].cancel(true)) --max;
600 >            if (tasks[3].cancel(true)) --max;
601 >            // There must eventually be an interference-free point at
602 >            // which purge will not fail. (At worst, when queue is empty.)
603 >            int k;
604 >            for (k = 0; k < SMALL_DELAY_MS; ++k) {
605 >                p.purge();
606 >                long count = p.getTaskCount();
607 >                if (count >= 0 && count <= max)
608 >                    break;
609 >                Thread.sleep(1);
610 >            }
611 >            assertTrue(k < SMALL_DELAY_MS);
612 >        } finally {
613 >            for (ScheduledFuture task : tasks)
614 >                task.cancel(true);
615 >            joinPool(p);
616          }
343        assertEquals(5, p1.getTaskCount());
344        joinPool(p1);
617      }
618 <    
618 >
619      /**
620 <     *   isShutDown gives correct values
620 >     * shutDownNow returns a list containing tasks that were not run
621       */
622 <    public void testIsShutdown() {
623 <        
624 <        ScheduledExecutor p1 = new ScheduledExecutor(1);
622 >    public void testShutDownNow() throws InterruptedException {
623 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
624 >        for (int i = 0; i < 5; i++)
625 >            p.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS);
626 >        List l;
627 >        try {
628 >            l = p.shutdownNow();
629 >        } catch (SecurityException ok) {
630 >            return;
631 >        }
632 >        assertTrue(p.isShutdown());
633 >        assertTrue(l.size() > 0 && l.size() <= 5);
634 >        joinPool(p);
635 >    }
636 >
637 >    /**
638 >     * In default setting, shutdown cancels periodic but not delayed
639 >     * tasks at shutdown
640 >     */
641 >    public void testShutDown1() throws InterruptedException {
642 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
643 >        assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
644 >        assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
645 >
646 >        ScheduledFuture[] tasks = new ScheduledFuture[5];
647 >        for (int i = 0; i < tasks.length; i++)
648 >            tasks[i] = p.schedule(new NoOpRunnable(),
649 >                                  SHORT_DELAY_MS, MILLISECONDS);
650 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
651 >        BlockingQueue<Runnable> q = p.getQueue();
652 >        for (ScheduledFuture task : tasks) {
653 >            assertFalse(task.isDone());
654 >            assertFalse(task.isCancelled());
655 >            assertTrue(q.contains(task));
656 >        }
657 >        assertTrue(p.isShutdown());
658 >        assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
659 >        assertTrue(p.isTerminated());
660 >        for (ScheduledFuture task : tasks) {
661 >            assertTrue(task.isDone());
662 >            assertFalse(task.isCancelled());
663 >        }
664 >    }
665 >
666 >
667 >    /**
668 >     * If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
669 >     * delayed tasks are cancelled at shutdown
670 >     */
671 >    public void testShutDown2() throws InterruptedException {
672 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
673 >        p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
674 >        assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
675 >        assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
676 >        ScheduledFuture[] tasks = new ScheduledFuture[5];
677 >        for (int i = 0; i < tasks.length; i++)
678 >            tasks[i] = p.schedule(new NoOpRunnable(),
679 >                                  SHORT_DELAY_MS, MILLISECONDS);
680 >        BlockingQueue q = p.getQueue();
681 >        assertEquals(tasks.length, q.size());
682 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
683 >        assertTrue(p.isShutdown());
684 >        assertTrue(q.isEmpty());
685 >        assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
686 >        assertTrue(p.isTerminated());
687 >        for (ScheduledFuture task : tasks) {
688 >            assertTrue(task.isDone());
689 >            assertTrue(task.isCancelled());
690 >        }
691 >    }
692 >
693 >    /**
694 >     * If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
695 >     * periodic tasks are cancelled at shutdown
696 >     */
697 >    public void testShutDown3() throws InterruptedException {
698 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
699 >        assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
700 >        assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
701 >        p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
702 >        assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
703 >        assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
704 >        ScheduledFuture task =
705 >            p.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, MILLISECONDS);
706 >        try { p.shutdown(); } catch (SecurityException ok) { return; }
707 >        assertTrue(p.isShutdown());
708 >        BlockingQueue q = p.getQueue();
709 >        assertTrue(p.getQueue().isEmpty());
710 >        assertTrue(task.isDone());
711 >        assertTrue(task.isCancelled());
712 >        assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
713 >        assertTrue(p.isTerminated());
714 >    }
715 >
716 >    /**
717 >     * if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
718 >     * periodic tasks are not cancelled at shutdown
719 >     */
720 >    public void testShutDown4() throws InterruptedException {
721 >        ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
722 >        final CountDownLatch counter = new CountDownLatch(2);
723          try {
724 <            assertFalse(p1.isShutdown());
724 >            p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
725 >            assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
726 >            assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
727 >            final Runnable r = new CheckedRunnable() {
728 >                public void realRun() {
729 >                    counter.countDown();
730 >                }};
731 >            ScheduledFuture task =
732 >                p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS);
733 >            assertFalse(task.isDone());
734 >            assertFalse(task.isCancelled());
735 >            try { p.shutdown(); } catch (SecurityException ok) { return; }
736 >            assertFalse(task.isCancelled());
737 >            assertFalse(p.isTerminated());
738 >            assertTrue(p.isShutdown());
739 >            assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS));
740 >            assertFalse(task.isCancelled());
741 >            assertTrue(task.cancel(false));
742 >            assertTrue(task.isDone());
743 >            assertTrue(task.isCancelled());
744 >            assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS));
745 >            assertTrue(p.isTerminated());
746          }
747          finally {
748 <            p1.shutdown();
748 >            joinPool(p);
749          }
359        assertTrue(p1.isShutdown());
750      }
751  
362        
752      /**
753 <     *  isTerminated gives correct values
753 >     * completed submit of callable returns result
754       */
755 <    public void testIsTerminated() {
756 <        ScheduledExecutor p1 = new ScheduledExecutor(1);
755 >    public void testSubmitCallable() throws Exception {
756 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
757          try {
758 <            p1.execute(new SmallRunnable());
758 >            Future<String> future = e.submit(new StringTask());
759 >            String result = future.get();
760 >            assertSame(TEST_STRING, result);
761          } finally {
762 <            p1.shutdown();
762 >            joinPool(e);
763          }
764 +    }
765 +
766 +    /**
767 +     * completed submit of runnable returns successfully
768 +     */
769 +    public void testSubmitRunnable() throws Exception {
770 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
771          try {
772 <            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
773 <            assertTrue(p1.isTerminated());
774 <        } catch(Exception e){
775 <            unexpectedException();
776 <        }      
772 >            Future<?> future = e.submit(new NoOpRunnable());
773 >            future.get();
774 >            assertTrue(future.isDone());
775 >        } finally {
776 >            joinPool(e);
777 >        }
778      }
779  
780      /**
781 <     *  isTerminating gives correct values
781 >     * completed submit of (runnable, result) returns result
782       */
783 <    public void testIsTerminating() {
784 <        ScheduledExecutor p1 = new ScheduledExecutor(1);
386 <        assertFalse(p1.isTerminating());
783 >    public void testSubmitRunnable2() throws Exception {
784 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
785          try {
786 <            p1.execute(new SmallRunnable());
787 <            assertFalse(p1.isTerminating());
786 >            Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
787 >            String result = future.get();
788 >            assertSame(TEST_STRING, result);
789          } finally {
790 <            p1.shutdown();
790 >            joinPool(e);
791          }
792 +    }
793 +
794 +    /**
795 +     * invokeAny(null) throws NPE
796 +     */
797 +    public void testInvokeAny1() throws Exception {
798 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
799          try {
800 <            assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
801 <            assertTrue(p1.isTerminated());
802 <            assertFalse(p1.isTerminating());
803 <        } catch(Exception e){
804 <            unexpectedException();
805 <        }      
800 >            e.invokeAny(null);
801 >            shouldThrow();
802 >        } catch (NullPointerException success) {
803 >        } finally {
804 >            joinPool(e);
805 >        }
806      }
807  
808      /**
809 <     *   that purge correctly removes cancelled tasks
404 <     *  from the queue
809 >     * invokeAny(empty collection) throws IAE
810       */
811 <    public void testPurge() {
812 <        ScheduledExecutor p1 = new ScheduledExecutor(1);
813 <        ScheduledCancellable[] tasks = new ScheduledCancellable[5];
814 <        for(int i = 0; i < 5; i++){
815 <            tasks[i] = p1.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
811 >    public void testInvokeAny2() throws Exception {
812 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
813 >        try {
814 >            e.invokeAny(new ArrayList<Callable<String>>());
815 >            shouldThrow();
816 >        } catch (IllegalArgumentException success) {
817 >        } finally {
818 >            joinPool(e);
819          }
412        int max = 5;
413        if (tasks[4].cancel(true)) --max;
414        if (tasks[3].cancel(true)) --max;
415        p1.purge();
416        long count = p1.getTaskCount();
417        assertTrue(count > 0 && count <= max);
418        joinPool(p1);
820      }
821  
822      /**
823 <     *   shutDownNow returns a list
423 <     *  containing the correct number of elements
823 >     * invokeAny(c) throws NPE if c has null elements
824       */
825 <    public void testShutDownNow() {
826 <        ScheduledExecutor p1 = new ScheduledExecutor(1);
827 <        for(int i = 0; i < 5; i++)
828 <            p1.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
829 <        List l = p1.shutdownNow();
830 <        assertTrue(p1.isShutdown());
831 <        assertTrue(l.size() > 0 && l.size() <= 5);
832 <        joinPool(p1);
825 >    public void testInvokeAny3() throws Exception {
826 >        CountDownLatch latch = new CountDownLatch(1);
827 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
828 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
829 >        l.add(latchAwaitingStringTask(latch));
830 >        l.add(null);
831 >        try {
832 >            e.invokeAny(l);
833 >            shouldThrow();
834 >        } catch (NullPointerException success) {
835 >        } finally {
836 >            latch.countDown();
837 >            joinPool(e);
838 >        }
839      }
840  
841      /**
842 <     *
842 >     * invokeAny(c) throws ExecutionException if no task completes
843       */
844 <    public void testShutDown1() {
844 >    public void testInvokeAny4() throws Exception {
845 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
846 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
847 >        l.add(new NPETask());
848          try {
849 <            ScheduledExecutor p1 = new ScheduledExecutor(1);
850 <            assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
851 <            assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
849 >            e.invokeAny(l);
850 >            shouldThrow();
851 >        } catch (ExecutionException success) {
852 >            assertTrue(success.getCause() instanceof NullPointerException);
853 >        } finally {
854 >            joinPool(e);
855 >        }
856 >    }
857  
858 <            ScheduledCancellable[] tasks = new ScheduledCancellable[5];
859 <            for(int i = 0; i < 5; i++)
860 <                tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
861 <            p1.shutdown();
862 <            BlockingQueue q = p1.getQueue();
863 <            for (Iterator it = q.iterator(); it.hasNext();) {
864 <                ScheduledCancellable t = (ScheduledCancellable)it.next();
865 <                assertFalse(t.isCancelled());
866 <            }
867 <            assertTrue(p1.isShutdown());
868 <            Thread.sleep(SMALL_DELAY_MS);
869 <            for (int i = 0; i < 5; ++i) {
870 <                assertTrue(tasks[i].isDone());
457 <                assertFalse(tasks[i].isCancelled());
458 <            }
459 <            
858 >    /**
859 >     * invokeAny(c) returns result of some task
860 >     */
861 >    public void testInvokeAny5() throws Exception {
862 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
863 >        try {
864 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
865 >            l.add(new StringTask());
866 >            l.add(new StringTask());
867 >            String result = e.invokeAny(l);
868 >            assertSame(TEST_STRING, result);
869 >        } finally {
870 >            joinPool(e);
871          }
872 <        catch(Exception ex) {
873 <            unexpectedException();
872 >    }
873 >
874 >    /**
875 >     * invokeAll(null) throws NPE
876 >     */
877 >    public void testInvokeAll1() throws Exception {
878 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
879 >        try {
880 >            e.invokeAll(null);
881 >            shouldThrow();
882 >        } catch (NullPointerException success) {
883 >        } finally {
884 >            joinPool(e);
885          }
886      }
887  
888 +    /**
889 +     * invokeAll(empty collection) returns empty collection
890 +     */
891 +    public void testInvokeAll2() throws Exception {
892 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
893 +        try {
894 +            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
895 +            assertTrue(r.isEmpty());
896 +        } finally {
897 +            joinPool(e);
898 +        }
899 +    }
900  
901      /**
902 <     *
902 >     * invokeAll(c) throws NPE if c has null elements
903       */
904 <    public void testShutDown2() {
904 >    public void testInvokeAll3() throws Exception {
905 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
906 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
907 >        l.add(new StringTask());
908 >        l.add(null);
909          try {
910 <            ScheduledExecutor p1 = new ScheduledExecutor(1);
911 <            p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
912 <            ScheduledCancellable[] tasks = new ScheduledCancellable[5];
913 <            for(int i = 0; i < 5; i++)
914 <                tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
477 <            p1.shutdown();
478 <            assertTrue(p1.isShutdown());
479 <            BlockingQueue q = p1.getQueue();
480 <            assertTrue(q.isEmpty());
481 <            Thread.sleep(SMALL_DELAY_MS);
482 <            assertTrue(p1.isTerminated());
910 >            e.invokeAll(l);
911 >            shouldThrow();
912 >        } catch (NullPointerException success) {
913 >        } finally {
914 >            joinPool(e);
915          }
916 <        catch(Exception ex) {
917 <            unexpectedException();
916 >    }
917 >
918 >    /**
919 >     * get of invokeAll(c) throws exception on failed task
920 >     */
921 >    public void testInvokeAll4() throws Exception {
922 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
923 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
924 >        l.add(new NPETask());
925 >        List<Future<String>> futures = e.invokeAll(l);
926 >        assertEquals(1, futures.size());
927 >        try {
928 >            futures.get(0).get();
929 >            shouldThrow();
930 >        } catch (ExecutionException success) {
931 >            assertTrue(success.getCause() instanceof NullPointerException);
932 >        } finally {
933 >            joinPool(e);
934          }
935      }
936  
937 +    /**
938 +     * invokeAll(c) returns results of all completed tasks
939 +     */
940 +    public void testInvokeAll5() throws Exception {
941 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
942 +        try {
943 +            List<Callable<String>> l = new ArrayList<Callable<String>>();
944 +            l.add(new StringTask());
945 +            l.add(new StringTask());
946 +            List<Future<String>> futures = e.invokeAll(l);
947 +            assertEquals(2, futures.size());
948 +            for (Future<String> future : futures)
949 +                assertSame(TEST_STRING, future.get());
950 +        } finally {
951 +            joinPool(e);
952 +        }
953 +    }
954  
955      /**
956 <     *
956 >     * timed invokeAny(null) throws NPE
957       */
958 <    public void testShutDown3() {
958 >    public void testTimedInvokeAny1() throws Exception {
959 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
960          try {
961 <            ScheduledExecutor p1 = new ScheduledExecutor(1);
962 <            p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
963 <            ScheduledCancellable task =
964 <                p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
965 <            p1.shutdown();
500 <            assertTrue(p1.isShutdown());
501 <            BlockingQueue q = p1.getQueue();
502 <            assertTrue(q.isEmpty());
503 <            Thread.sleep(SHORT_DELAY_MS);
504 <            assertTrue(p1.isTerminated());
961 >            e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
962 >            shouldThrow();
963 >        } catch (NullPointerException success) {
964 >        } finally {
965 >            joinPool(e);
966          }
967 <        catch(Exception ex) {
968 <            unexpectedException();
967 >    }
968 >
969 >    /**
970 >     * timed invokeAny(,,null) throws NPE
971 >     */
972 >    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
973 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
974 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
975 >        l.add(new StringTask());
976 >        try {
977 >            e.invokeAny(l, MEDIUM_DELAY_MS, null);
978 >            shouldThrow();
979 >        } catch (NullPointerException success) {
980 >        } finally {
981 >            joinPool(e);
982          }
983      }
984  
985      /**
986 <     *
986 >     * timed invokeAny(empty collection) throws IAE
987       */
988 <    public void testShutDown4() {
989 <        ScheduledExecutor p1 = new ScheduledExecutor(1);
988 >    public void testTimedInvokeAny2() throws Exception {
989 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
990          try {
991 <            p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
992 <            ScheduledCancellable task =
993 <                p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
994 <            assertFalse(task.isCancelled());
995 <            p1.shutdown();
522 <            assertFalse(task.isCancelled());
523 <            assertFalse(p1.isTerminated());
524 <            assertTrue(p1.isShutdown());
525 <            Thread.sleep(SHORT_DELAY_MS);
526 <            assertFalse(task.isCancelled());
527 <            task.cancel(true);
528 <            assertTrue(task.isCancelled());
529 <            Thread.sleep(SHORT_DELAY_MS);
530 <            assertTrue(p1.isTerminated());
991 >            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
992 >            shouldThrow();
993 >        } catch (IllegalArgumentException success) {
994 >        } finally {
995 >            joinPool(e);
996          }
997 <        catch(Exception ex) {
998 <            unexpectedException();
997 >    }
998 >
999 >    /**
1000 >     * timed invokeAny(c) throws NPE if c has null elements
1001 >     */
1002 >    public void testTimedInvokeAny3() throws Exception {
1003 >        CountDownLatch latch = new CountDownLatch(1);
1004 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1005 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1006 >        l.add(latchAwaitingStringTask(latch));
1007 >        l.add(null);
1008 >        try {
1009 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1010 >            shouldThrow();
1011 >        } catch (NullPointerException success) {
1012 >        } finally {
1013 >            latch.countDown();
1014 >            joinPool(e);
1015          }
1016 <        finally {
1017 <            p1.shutdownNow();
1016 >    }
1017 >
1018 >    /**
1019 >     * timed invokeAny(c) throws ExecutionException if no task completes
1020 >     */
1021 >    public void testTimedInvokeAny4() throws Exception {
1022 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1023 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1024 >        l.add(new NPETask());
1025 >        try {
1026 >            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1027 >            shouldThrow();
1028 >        } catch (ExecutionException success) {
1029 >            assertTrue(success.getCause() instanceof NullPointerException);
1030 >        } finally {
1031 >            joinPool(e);
1032 >        }
1033 >    }
1034 >
1035 >    /**
1036 >     * timed invokeAny(c) returns result of some task
1037 >     */
1038 >    public void testTimedInvokeAny5() throws Exception {
1039 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1040 >        try {
1041 >            List<Callable<String>> l = new ArrayList<Callable<String>>();
1042 >            l.add(new StringTask());
1043 >            l.add(new StringTask());
1044 >            String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1045 >            assertSame(TEST_STRING, result);
1046 >        } finally {
1047 >            joinPool(e);
1048 >        }
1049 >    }
1050 >
1051 >    /**
1052 >     * timed invokeAll(null) throws NPE
1053 >     */
1054 >    public void testTimedInvokeAll1() throws Exception {
1055 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1056 >        try {
1057 >            e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1058 >            shouldThrow();
1059 >        } catch (NullPointerException success) {
1060 >        } finally {
1061 >            joinPool(e);
1062 >        }
1063 >    }
1064 >
1065 >    /**
1066 >     * timed invokeAll(,,null) throws NPE
1067 >     */
1068 >    public void testTimedInvokeAllNullTimeUnit() throws Exception {
1069 >        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1070 >        List<Callable<String>> l = new ArrayList<Callable<String>>();
1071 >        l.add(new StringTask());
1072 >        try {
1073 >            e.invokeAll(l, MEDIUM_DELAY_MS, null);
1074 >            shouldThrow();
1075 >        } catch (NullPointerException success) {
1076 >        } finally {
1077 >            joinPool(e);
1078          }
1079      }
1080  
1081 +    /**
1082 +     * timed invokeAll(empty collection) returns empty collection
1083 +     */
1084 +    public void testTimedInvokeAll2() throws Exception {
1085 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1086 +        try {
1087 +            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1088 +            assertTrue(r.isEmpty());
1089 +        } finally {
1090 +            joinPool(e);
1091 +        }
1092 +    }
1093 +
1094 +    /**
1095 +     * timed invokeAll(c) throws NPE if c has null elements
1096 +     */
1097 +    public void testTimedInvokeAll3() throws Exception {
1098 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1099 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
1100 +        l.add(new StringTask());
1101 +        l.add(null);
1102 +        try {
1103 +            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1104 +            shouldThrow();
1105 +        } catch (NullPointerException success) {
1106 +        } finally {
1107 +            joinPool(e);
1108 +        }
1109 +    }
1110 +
1111 +    /**
1112 +     * get of element of invokeAll(c) throws exception on failed task
1113 +     */
1114 +    public void testTimedInvokeAll4() throws Exception {
1115 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1116 +        List<Callable<String>> l = new ArrayList<Callable<String>>();
1117 +        l.add(new NPETask());
1118 +        List<Future<String>> futures =
1119 +            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1120 +        assertEquals(1, futures.size());
1121 +        try {
1122 +            futures.get(0).get();
1123 +            shouldThrow();
1124 +        } catch (ExecutionException success) {
1125 +            assertTrue(success.getCause() instanceof NullPointerException);
1126 +        } finally {
1127 +            joinPool(e);
1128 +        }
1129 +    }
1130 +
1131 +    /**
1132 +     * timed invokeAll(c) returns results of all completed tasks
1133 +     */
1134 +    public void testTimedInvokeAll5() throws Exception {
1135 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1136 +        try {
1137 +            List<Callable<String>> l = new ArrayList<Callable<String>>();
1138 +            l.add(new StringTask());
1139 +            l.add(new StringTask());
1140 +            List<Future<String>> futures =
1141 +                e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1142 +            assertEquals(2, futures.size());
1143 +            for (Future<String> future : futures)
1144 +                assertSame(TEST_STRING, future.get());
1145 +        } finally {
1146 +            joinPool(e);
1147 +        }
1148 +    }
1149 +
1150 +    /**
1151 +     * timed invokeAll(c) cancels tasks not completed by timeout
1152 +     */
1153 +    public void testTimedInvokeAll6() throws Exception {
1154 +        ExecutorService e = new ScheduledThreadPoolExecutor(2);
1155 +        try {
1156 +            List<Callable<String>> l = new ArrayList<Callable<String>>();
1157 +            l.add(new StringTask());
1158 +            l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1159 +            l.add(new StringTask());
1160 +            List<Future<String>> futures =
1161 +                e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1162 +            assertEquals(3, futures.size());
1163 +            Iterator<Future<String>> it = futures.iterator();
1164 +            Future<String> f1 = it.next();
1165 +            Future<String> f2 = it.next();
1166 +            Future<String> f3 = it.next();
1167 +            assertTrue(f1.isDone());
1168 +            assertTrue(f2.isDone());
1169 +            assertTrue(f3.isDone());
1170 +            assertFalse(f1.isCancelled());
1171 +            assertTrue(f2.isCancelled());
1172 +        } finally {
1173 +            joinPool(e);
1174 +        }
1175 +    }
1176 +
1177 +
1178   }

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