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root/jsr166/jsr166/src/test/tck/ExecutorsTest.java

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.3 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.7 by dl, Sun Oct 5 23:00:40 2003 UTC

#	Line 12 | Line 12 | import java.util.concurrent.*;
12		import java.math.BigInteger;
13
14		public class ExecutorsTest extends JSR166TestCase{
15	–
15		public static void main(String[] args) {
16		junit.textui.TestRunner.run (suite());
17		}
19	–
20	–
18		public static Test suite() {
19		return new TestSuite(ExecutorsTest.class);
20		}
21
22	+	private static final String TEST_STRING = "a test string";
23	+
24	+	private static class StringTask implements Callable<String> {
25	+	public String call() { return TEST_STRING; }
26	+	}
27	+
28	+	static class DirectExecutor implements Executor {
29	+	public void execute(Runnable r) {
30	+	r.run();
31	+	}
32	+	}
33	+
34	+	static class TimedCallable<T> implements Callable<T> {
35	+	private final Executor exec;
36	+	private final Callable<T> func;
37	+	private final long msecs;
38	+
39	+	TimedCallable(Executor exec, Callable<T> func, long msecs) {
40	+	this.exec = exec;
41	+	this.func = func;
42	+	this.msecs = msecs;
43	+	}
44	+
45	+	public T call() throws Exception {
46	+	Future<T> ftask = Executors.execute(exec, func);
47	+	try {
48	+	return ftask.get(msecs, TimeUnit.MILLISECONDS);
49	+	} finally {
50	+	ftask.cancel(true);
51	+	}
52	+	}
53	+	}
54	+
55	+
56	+	private static class Fib implements Callable<BigInteger> {
57	+	private final BigInteger n;
58	+	Fib(long n) {
59	+	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
60	+	this.n = BigInteger.valueOf(n);
61	+	}
62	+	public BigInteger call() {
63	+	BigInteger f1 = BigInteger.ONE;
64	+	BigInteger f2 = f1;
65	+	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
66	+	BigInteger t = f1.add(f2);
67	+	f1 = f2;
68	+	f2 = t;
69	+	}
70	+	return f1;
71	+	}
72	+	};
73	+
74	+	/**
75	+	* A newCachedThreadPool can execute runnables
76	+	*/
77	+	public void testNewCachedThreadPool1() {
78	+	ExecutorService e = Executors.newCachedThreadPool();
79	+	e.execute(new NoOpRunnable());
80	+	e.execute(new NoOpRunnable());
81	+	e.execute(new NoOpRunnable());
82	+	e.shutdown();
83	+	}
84	+
85	+	/**
86	+	* A newCachedThreadPool with given ThreadFactory can execute runnables
87	+	*/
88	+	public void testNewCachedThreadPool2() {
89	+	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
90	+	e.execute(new NoOpRunnable());
91	+	e.execute(new NoOpRunnable());
92	+	e.execute(new NoOpRunnable());
93	+	e.shutdown();
94	+	}
95	+
96	+	/**
97	+	* A newCachedThreadPool with null ThreadFactory throws NPE
98	+	*/
99	+	public void testNewCachedThreadPool3() {
100	+	try {
101	+	ExecutorService e = Executors.newCachedThreadPool(null);
102	+	shouldThrow();
103	+	}
104	+	catch(NullPointerException success) {
105	+	}
106	+	}
107	+
108	+
109	+	/**
110	+	* A new SingleThreadExecutor can execute runnables
111	+	*/
112	+	public void testNewSingleThreadExecutor1() {
113	+	ExecutorService e = Executors.newSingleThreadExecutor();
114	+	e.execute(new NoOpRunnable());
115	+	e.execute(new NoOpRunnable());
116	+	e.execute(new NoOpRunnable());
117	+	e.shutdown();
118	+	}
119	+
120	+	/**
121	+	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
122	+	*/
123	+	public void testNewSingleThreadExecutor2() {
124	+	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
125	+	e.execute(new NoOpRunnable());
126	+	e.execute(new NoOpRunnable());
127	+	e.execute(new NoOpRunnable());
128	+	e.shutdown();
129	+	}
130	+
131	+	/**
132	+	* A new SingleThreadExecutor with null ThreadFactory throws NPE
133	+	*/
134	+	public void testNewSingleThreadExecutor3() {
135	+	try {
136	+	ExecutorService e = Executors.newSingleThreadExecutor(null);
137	+	shouldThrow();
138	+	}
139	+	catch(NullPointerException success) {
140	+	}
141	+	}
142	+
143	+	/**
144	+	* A new newFixedThreadPool can execute runnables
145	+	*/
146	+	public void testNewFixedThreadPool1() {
147	+	ExecutorService e = Executors.newFixedThreadPool(2);
148	+	e.execute(new NoOpRunnable());
149	+	e.execute(new NoOpRunnable());
150	+	e.execute(new NoOpRunnable());
151	+	e.shutdown();
152	+	}
153	+
154	+	/**
155	+	* A new newFixedThreadPool with given ThreadFactory can execute runnables
156	+	*/
157	+	public void testNewFixedThreadPool2() {
158	+	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
159	+	e.execute(new NoOpRunnable());
160	+	e.execute(new NoOpRunnable());
161	+	e.execute(new NoOpRunnable());
162	+	e.shutdown();
163	+	}
164	+
165	+	/**
166	+	* A new newFixedThreadPool with null ThreadFactory throws NPE
167	+	*/
168	+	public void testNewFixedThreadPool3() {
169	+	try {
170	+	ExecutorService e = Executors.newFixedThreadPool(2, null);
171	+	shouldThrow();
172	+	}
173	+	catch(NullPointerException success) {
174	+	}
175	+	}
176	+
177	+	/**
178	+	* A new newFixedThreadPool with 0 threads throws IAE
179	+	*/
180	+	public void testNewFixedThreadPool4() {
181	+	try {
182	+	ExecutorService e = Executors.newFixedThreadPool(0);
183	+	shouldThrow();
184	+	}
185	+	catch(IllegalArgumentException success) {
186	+	}
187	+	}
188	+
189	+	/**
190	+	* execute of runnable runs it to completion
191	+	*/
192	+	public void testExecuteRunnable() {
193	+	try {
194	+	Executor e = new DirectExecutor();
195	+	TrackedShortRunnable task = new TrackedShortRunnable();
196	+	assertFalse(task.done);
197	+	Future<String> future = Executors.execute(e, task, TEST_STRING);
198	+	String result = future.get();
199	+	assertTrue(task.done);
200	+	assertSame(TEST_STRING, result);
201	+	}
202	+	catch (ExecutionException ex) {
203	+	unexpectedException();
204	+	}
205	+	catch (InterruptedException ex) {
206	+	unexpectedException();
207	+	}
208	+	}
209	+
210	+	/**
211	+	* invoke of a runnable runs it to completion
212	+	*/
213	+	public void testInvokeRunnable() {
214	+	try {
215	+	Executor e = new DirectExecutor();
216	+	TrackedShortRunnable task = new TrackedShortRunnable();
217	+	assertFalse(task.done);
218	+	Executors.invoke(e, task);
219	+	assertTrue(task.done);
220	+	}
221	+	catch (ExecutionException ex) {
222	+	unexpectedException();
223	+	}
224	+	catch (InterruptedException ex) {
225	+	unexpectedException();
226	+	}
227	+	}
228	+
229	+	/**
230	+	* execute of a callable runs it to completion
231	+	*/
232	+	public void testExecuteCallable() {
233	+	try {
234	+	Executor e = new DirectExecutor();
235	+	Future<String> future = Executors.execute(e, new StringTask());
236	+	String result = future.get();
237	+	assertSame(TEST_STRING, result);
238	+	}
239	+	catch (ExecutionException ex) {
240	+	unexpectedException();
241	+	}
242	+	catch (InterruptedException ex) {
243	+	unexpectedException();
244	+	}
245	+	}
246	+
247	+	/**
248	+	* invoke of a collable runs it to completion
249	+	*/
250	+	public void testInvokeCallable() {
251	+	try {
252	+	Executor e = new DirectExecutor();
253	+	String result = Executors.invoke(e, new StringTask());
254	+
255	+	assertSame(TEST_STRING, result);
256	+	}
257	+	catch (ExecutionException ex) {
258	+	unexpectedException();
259	+	}
260	+	catch (InterruptedException ex) {
261	+	unexpectedException();
262	+	}
263	+	}
264	+
265		/**
266	<	*   execute(Executor, Runnable) will throw
27	<	*  RejectedExecutionException Attempting to execute a runnable on
28	<	*  a full ThreadPool will cause such an exception here, up to 5
29	<	*  runnables are attempted on a pool capable on handling one
30	<	*  until it throws an exception
266	>	* execute with null executor throws NPE
267		*/
268	<	public void testExecute1(){
268	>	public void testNullExecuteRunnable() {
269	>	try {
270	>	TrackedShortRunnable task = new TrackedShortRunnable();
271	>	assertFalse(task.done);
272	>	Future<String> future = Executors.execute(null, task, TEST_STRING);
273	>	shouldThrow();
274	>	}
275	>	catch (NullPointerException success) {
276	>	}
277	>	catch (Exception ex) {
278	>	unexpectedException();
279	>	}
280	>	}
281	>
282	>	/**
283	>	* execute with a null runnable throws NPE
284	>	*/
285	>	public void testExecuteNullRunnable() {
286	>	try {
287	>	Executor e = new DirectExecutor();
288	>	TrackedShortRunnable task = null;
289	>	Future<String> future = Executors.execute(e, task, TEST_STRING);
290	>	shouldThrow();
291	>	}
292	>	catch (NullPointerException success) {
293	>	}
294	>	catch (Exception ex) {
295	>	unexpectedException();
296	>	}
297	>	}
298	>
299	>	/**
300	>	* invoke of a null runnable throws NPE
301	>	*/
302	>	public void testInvokeNullRunnable() {
303	>	try {
304	>	Executor e = new DirectExecutor();
305	>	TrackedShortRunnable task = null;
306	>	Executors.invoke(e, task);
307	>	shouldThrow();
308	>	}
309	>	catch (NullPointerException success) {
310	>	}
311	>	catch (Exception ex) {
312	>	unexpectedException();
313	>	}
314	>	}
315	>
316	>	/**
317	>	* execute of a null callable throws NPE
318	>	*/
319	>	public void testExecuteNullCallable() {
320	>	try {
321	>	Executor e = new DirectExecutor();
322	>	StringTask t = null;
323	>	Future<String> future = Executors.execute(e, t);
324	>	shouldThrow();
325	>	}
326	>	catch (NullPointerException success) {
327	>	}
328	>	catch (Exception ex) {
329	>	unexpectedException();
330	>	}
331	>	}
332	>
333	>	/**
334	>	* invoke of a null callable throws NPE
335	>	*/
336	>	public void testInvokeNullCallable() {
337	>	try {
338	>	Executor e = new DirectExecutor();
339	>	StringTask t = null;
340	>	String result = Executors.invoke(e, t);
341	>	shouldThrow();
342	>	}
343	>	catch (NullPointerException success) {
344	>	}
345	>	catch (Exception ex) {
346	>	unexpectedException();
347	>	}
348	>	}
349	>
350	>	/**
351	>	*  execute(Executor, Runnable) throws RejectedExecutionException
352	>	*  if saturated.
353	>	*/
354	>	public void testExecute1() {
355		ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
356	<	try{
356	>	try {
357
358		for(int i = 0; i < 5; ++i){
359		Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
360		}
361	<	fail("should throw");
361	>	shouldThrow();
362		} catch(RejectedExecutionException success){}
363		joinPool(p);
364		}
365
366		/**
367	<	*   execute(Executor, Callable) will throw
368	<	*  RejectedExecutionException Attempting to execute a callable on
47	<	*  a full ThreadPool will cause such an exception here, up to 5
48	<	*  runnables are attempted on a pool capable on handling one
49	<	*  until it throws an exception
367	>	*  execute(Executor, Callable)throws RejectedExecutionException
368	>	*  if saturated.
369		*/
370	<	public void testExecute2(){
370	>	public void testExecute2() {
371		ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
372	<	try{
372	>	try {
373		for(int i = 0; i < 5; ++i) {
374		Executors.execute(p, new SmallCallable());
375		}
376	<	fail("should throw");
377	<	}catch(RejectedExecutionException e){}
376	>	shouldThrow();
377	>	} catch(RejectedExecutionException e){}
378		joinPool(p);
379		}
380
381
382		/**
383	<	*   invoke(Executor, Runnable) throws InterruptedException
384	<	*  A single use of invoke starts that will wait long enough
66	<	*  for the invoking thread to be interrupted
383	>	*  invoke(Executor, Runnable) throws InterruptedException if
384	>	*  caller interrupted.
385		*/
386	<	public void testInvoke2(){
386	>	public void testInterruptedInvoke() {
387		final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
388		Thread t = new Thread(new Runnable() {
389	<	public void run(){
390	<	try{
391	<	Executors.invoke(p,new Runnable(){
392	<	public void run(){
393	<	try{
389	>	public void run() {
390	>	try {
391	>	Executors.invoke(p,new Runnable() {
392	>	public void run() {
393	>	try {
394		Thread.sleep(MEDIUM_DELAY_MS);
395	<	fail("should throw");
396	<	}catch(InterruptedException e){
395	>	shouldThrow();
396	>	} catch(InterruptedException e){
397		}
398		}
399		});
400		} catch(InterruptedException success){
401		} catch(Exception e) {
402	<	fail("unexpected exception");
402	>	unexpectedException();
403		}
404
405		}
406		});
407	<	try{
407	>	try {
408		t.start();
409		Thread.sleep(SHORT_DELAY_MS);
410		t.interrupt();
411	<	}catch(Exception e){
412	<	fail("unexpected exception");
411	>	} catch(Exception e){
412	>	unexpectedException();
413		}
414		joinPool(p);
415		}
416
417		/**
418	<	*   invoke(Executor, Runnable) will throw
419	<	*  ExecutionException An ExecutionException occurs when the
102	<	*  underlying Runnable throws an exception, here the
103	<	*  DivideByZeroException will cause an ExecutionException
418	>	*  invoke(Executor, Runnable) throws ExecutionException if
419	>	*  runnable throws exception.
420		*/
421	<	public void testInvoke3(){
421	>	public void testInvoke3() {
422		ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
423	<	try{
424	<	Runnable r = new Runnable(){
425	<	public void run(){
423	>	try {
424	>	Runnable r = new Runnable() {
425	>	public void run() {
426		int i = 5/0;
427		}
428		};
#	Line 115 | Line 431 | public class ExecutorsTest extends JSR16
431		Executors.invoke(p,r);
432		}
433
434	<	fail("should throw");
434	>	shouldThrow();
435		} catch(ExecutionException success){
436		} catch(Exception e){
437	<	fail("should throw EE");
437	>	unexpectedException();
438		}
439		joinPool(p);
440		}
#	Line 126 | Line 442 | public class ExecutorsTest extends JSR16
442
443
444		/**
445	<	*   invoke(Executor, Callable) throws
446	<	*  InterruptedException A single use of invoke starts that will
131	<	*  wait long enough for the invoking thread to be interrupted
445	>	*  invoke(Executor, Callable) throws InterruptedException if
446	>	*  callable throws exception
447		*/
448	<	public void testInvoke5(){
448	>	public void testInvoke5() {
449		final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
450
451	<	final Callable c = new Callable(){
452	<	public Object call(){
453	<	try{
451	>	final Callable c = new Callable() {
452	>	public Object call() {
453	>	try {
454		Executors.invoke(p, new SmallCallable());
455	<	fail("should throw");
456	<	}catch(InterruptedException e){}
455	>	shouldThrow();
456	>	} catch(InterruptedException e){}
457		catch(RejectedExecutionException e2){}
458		catch(ExecutionException e3){}
459		return Boolean.TRUE;
#	Line 147 | Line 462 | public class ExecutorsTest extends JSR16
462
463
464
465	<	Thread t = new Thread(new Runnable(){
466	<	public void run(){
467	<	try{
465	>	Thread t = new Thread(new Runnable() {
466	>	public void run() {
467	>	try {
468		c.call();
469	<	}catch(Exception e){}
469	>	} catch(Exception e){}
470		}
471		});
472	<	try{
472	>	try {
473		t.start();
474		Thread.sleep(SHORT_DELAY_MS);
475		t.interrupt();
476		t.join();
477	<	}catch(InterruptedException e){
478	<	fail("unexpected exception");
477	>	} catch(InterruptedException e){
478	>	unexpectedException();
479		}
480
481		joinPool(p);
482		}
483
484		/**
485	<	*   invoke(Executor, Callable) will throw ExecutionException
486	<	*  An ExecutionException occurs when the underlying Runnable throws
172	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
485	>	*  invoke(Executor, Callable) will throw ExecutionException
486	>	*  if callable throws exception
487		*/
488	<	public void testInvoke6(){
488	>	public void testInvoke6() {
489		ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
490
491	<	try{
492	<	Callable c = new Callable(){
493	<	public Object call(){
491	>	try {
492	>	Callable c = new Callable() {
493	>	public Object call() {
494		int i = 5/0;
495		return Boolean.TRUE;
496		}
#	Line 186 | Line 500 | public class ExecutorsTest extends JSR16
500		Executors.invoke(p,c);
501		}
502
503	<	fail("should throw");
504	<	}catch(RejectedExecutionException e){}
505	<	catch(InterruptedException e2){}
506	<	catch(ExecutionException e3){}
507	<	joinPool(p);
194	<	}
195	<
196	<	public void testExecuteRunnable () {
197	<	try {
198	<	Executor e = new DirectExecutor();
199	<	Task task = new Task();
200	<
201	<	assertFalse("task should not be complete", task.isCompleted());
202	<
203	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
204	<	String result = future.get();
205	<
206	<	assertTrue("task should be complete", task.isCompleted());
207	<	assertSame("should return test string", TEST_STRING, result);
208	<	}
209	<	catch (ExecutionException ex) {
210	<	fail("Unexpected exception");
211	<	}
212	<	catch (InterruptedException ex) {
213	<	fail("Unexpected exception");
214	<	}
215	<	}
216	<
217	<	public void testInvokeRunnable () {
218	<	try {
219	<	Executor e = new DirectExecutor();
220	<	Task task = new Task();
221	<
222	<	assertFalse("task should not be complete", task.isCompleted());
223	<
224	<	Executors.invoke(e, task);
225	<
226	<	assertTrue("task should be complete", task.isCompleted());
227	<	}
228	<	catch (ExecutionException ex) {
229	<	fail("Unexpected exception");
503	>	shouldThrow();
504	>	}
505	>	catch(ExecutionException success){
506	>	} catch(Exception e) {
507	>	unexpectedException();
508		}
509	<	catch (InterruptedException ex) {
232	<	fail("Unexpected exception");
233	<	}
234	<	}
235	<
236	<	public void testExecuteCallable () {
237	<	try {
238	<	Executor e = new DirectExecutor();
239	<	Future<String> future = Executors.execute(e, new StringTask());
240	<	String result = future.get();
241	<
242	<	assertSame("should return test string", TEST_STRING, result);
243	<	}
244	<	catch (ExecutionException ex) {
245	<	fail("Unexpected exception");
246	<	}
247	<	catch (InterruptedException ex) {
248	<	fail("Unexpected exception");
249	<	}
250	<	}
251	<
252	<	public void testInvokeCallable () {
253	<	try {
254	<	Executor e = new DirectExecutor();
255	<	String result = Executors.invoke(e, new StringTask());
256	<
257	<	assertSame("should return test string", TEST_STRING, result);
258	<	}
259	<	catch (ExecutionException ex) {
260	<	fail("Unexpected exception" );
261	<	}
262	<	catch (InterruptedException ex) {
263	<	fail("Unexpected exception");
264	<	}
265	<	}
266	<
267	<	private static final String TEST_STRING = "a test string";
268	<
269	<	private static class Task implements Runnable {
270	<	public void run() { completed = true; }
271	<	public boolean isCompleted() { return completed; }
272	<	public void reset() { completed = false; }
273	<	private boolean completed = false;
509	>	joinPool(p);
510		}
511
276	–	private static class StringTask implements Callable<String> {
277	–	public String call() { return TEST_STRING; }
278	–	}
512
280	–	static class DirectExecutor implements Executor {
281	–	public void execute(Runnable r) {
282	–	r.run();
283	–	}
284	–	}
513
514		/**
515	<	* Check that timeouts from execute will time out if they compute
288	<	* too long.
515	>	*  timeouts from execute will time out if they compute too long.
516		*/
290	–
517		public void testTimedCallable() {
518		int N = 10000;
519		ExecutorService executor = Executors.newSingleThreadExecutor();
#	Line 313 | Line 539 | public class ExecutorsTest extends JSR16
539		return;
540		}
541		catch (Exception e) {
542	<	fail("unexpected exception: " + e);
542	>	unexpectedException();
543		}
544		}
545		// if by chance we didn't ever time out, total time must be small
#	Line 326 | Line 552 | public class ExecutorsTest extends JSR16
552		}
553
554
329	–	static class TimedCallable<T> implements Callable<T> {
330	–	private final Executor exec;
331	–	private final Callable<T> func;
332	–	private final long msecs;
333	–
334	–	TimedCallable(Executor exec, Callable<T> func, long msecs) {
335	–	this.exec = exec;
336	–	this.func = func;
337	–	this.msecs = msecs;
338	–	}
339	–
340	–	public T call() throws Exception {
341	–	Future<T> ftask = Executors.execute(exec, func);
342	–	try {
343	–	return ftask.get(msecs, TimeUnit.MILLISECONDS);
344	–	} finally {
345	–	ftask.cancel(true);
346	–	}
347	–	}
348	–	}
349	–
350	–
351	–	private static class Fib implements Callable<BigInteger> {
352	–	private final BigInteger n;
353	–	Fib(long n) {
354	–	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
355	–	this.n = BigInteger.valueOf(n);
356	–	}
357	–	public BigInteger call() {
358	–	BigInteger f1 = BigInteger.ONE;
359	–	BigInteger f2 = f1;
360	–	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
361	–	BigInteger t = f1.add(f2);
362	–	f1 = f2;
363	–	f2 = t;
364	–	}
365	–	return f1;
366	–	}
367	–	};
368	–
555
556
557		}

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