6 |
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* Pat Fisher, Mike Judd. |
7 |
|
*/ |
8 |
|
|
9 |
< |
import junit.framework.*; |
9 |
> |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
> |
import static java.util.concurrent.TimeUnit.NANOSECONDS; |
11 |
> |
|
12 |
> |
import java.util.ArrayList; |
13 |
> |
import java.util.List; |
14 |
> |
import java.util.NoSuchElementException; |
15 |
|
import java.util.concurrent.Callable; |
16 |
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import java.util.concurrent.CancellationException; |
17 |
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import java.util.concurrent.CountDownLatch; |
18 |
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import java.util.concurrent.ExecutionException; |
19 |
+ |
import java.util.concurrent.Executors; |
20 |
+ |
import java.util.concurrent.ExecutorService; |
21 |
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import java.util.concurrent.Future; |
22 |
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import java.util.concurrent.FutureTask; |
23 |
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import java.util.concurrent.TimeoutException; |
24 |
< |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
25 |
< |
import static java.util.concurrent.TimeUnit.SECONDS; |
26 |
< |
import java.util.*; |
24 |
> |
import java.util.concurrent.atomic.AtomicInteger; |
25 |
> |
|
26 |
> |
import junit.framework.Test; |
27 |
> |
import junit.framework.TestSuite; |
28 |
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|
29 |
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public class FutureTaskTest extends JSR166TestCase { |
30 |
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|
31 |
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public static void main(String[] args) { |
32 |
< |
junit.textui.TestRunner.run(suite()); |
32 |
> |
main(suite(), args); |
33 |
|
} |
34 |
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public static Test suite() { |
35 |
|
return new TestSuite(FutureTaskTest.class); |
36 |
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} |
37 |
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|
38 |
+ |
void checkIsDone(Future<?> f) { |
39 |
+ |
assertTrue(f.isDone()); |
40 |
+ |
assertFalse(f.cancel(false)); |
41 |
+ |
assertFalse(f.cancel(true)); |
42 |
+ |
if (f instanceof PublicFutureTask) { |
43 |
+ |
PublicFutureTask pf = (PublicFutureTask) f; |
44 |
+ |
assertEquals(1, pf.doneCount()); |
45 |
+ |
assertFalse(pf.runAndReset()); |
46 |
+ |
assertEquals(1, pf.doneCount()); |
47 |
+ |
Object r = null; Object exInfo = null; |
48 |
+ |
try { |
49 |
+ |
r = f.get(); |
50 |
+ |
} catch (CancellationException t) { |
51 |
+ |
exInfo = CancellationException.class; |
52 |
+ |
} catch (ExecutionException t) { |
53 |
+ |
exInfo = t.getCause(); |
54 |
+ |
} catch (Throwable t) { |
55 |
+ |
threadUnexpectedException(t); |
56 |
+ |
} |
57 |
+ |
|
58 |
+ |
// Check that run and runAndReset have no effect. |
59 |
+ |
int savedRunCount = pf.runCount(); |
60 |
+ |
pf.run(); |
61 |
+ |
pf.runAndReset(); |
62 |
+ |
assertEquals(savedRunCount, pf.runCount()); |
63 |
+ |
try { |
64 |
+ |
assertSame(r, f.get()); |
65 |
+ |
} catch (CancellationException t) { |
66 |
+ |
assertSame(exInfo, CancellationException.class); |
67 |
+ |
} catch (ExecutionException t) { |
68 |
+ |
assertSame(exInfo, t.getCause()); |
69 |
+ |
} catch (Throwable t) { |
70 |
+ |
threadUnexpectedException(t); |
71 |
+ |
} |
72 |
+ |
assertTrue(f.isDone()); |
73 |
+ |
} |
74 |
+ |
} |
75 |
+ |
|
76 |
|
void checkNotDone(Future<?> f) { |
77 |
|
assertFalse(f.isDone()); |
78 |
|
assertFalse(f.isCancelled()); |
79 |
+ |
if (f instanceof PublicFutureTask) { |
80 |
+ |
PublicFutureTask pf = (PublicFutureTask) f; |
81 |
+ |
assertEquals(0, pf.doneCount()); |
82 |
+ |
assertEquals(0, pf.setCount()); |
83 |
+ |
assertEquals(0, pf.setExceptionCount()); |
84 |
+ |
} |
85 |
+ |
} |
86 |
+ |
|
87 |
+ |
void checkIsRunning(Future<?> f) { |
88 |
+ |
checkNotDone(f); |
89 |
+ |
if (f instanceof FutureTask) { |
90 |
+ |
FutureTask ft = (FutureTask<?>) f; |
91 |
+ |
// Check that run methods do nothing |
92 |
+ |
ft.run(); |
93 |
+ |
if (f instanceof PublicFutureTask) { |
94 |
+ |
PublicFutureTask pf = (PublicFutureTask) f; |
95 |
+ |
int savedRunCount = pf.runCount(); |
96 |
+ |
pf.run(); |
97 |
+ |
assertFalse(pf.runAndReset()); |
98 |
+ |
assertEquals(savedRunCount, pf.runCount()); |
99 |
+ |
} |
100 |
+ |
checkNotDone(f); |
101 |
+ |
} |
102 |
|
} |
103 |
|
|
104 |
|
<T> void checkCompletedNormally(Future<T> f, T expected) { |
105 |
< |
assertTrue(f.isDone()); |
105 |
> |
checkIsDone(f); |
106 |
|
assertFalse(f.isCancelled()); |
107 |
|
|
108 |
|
try { |
109 |
|
assertSame(expected, f.get()); |
110 |
+ |
assertSame(expected, f.get(randomTimeout(), randomTimeUnit())); |
111 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
42 |
– |
try { |
43 |
– |
assertSame(expected, f.get(5L, SECONDS)); |
44 |
– |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
45 |
– |
|
46 |
– |
assertFalse(f.cancel(false)); |
47 |
– |
assertFalse(f.cancel(true)); |
112 |
|
} |
113 |
|
|
114 |
|
void checkCancelled(Future<?> f) { |
115 |
< |
assertTrue(f.isDone()); |
115 |
> |
checkIsDone(f); |
116 |
|
assertTrue(f.isCancelled()); |
117 |
|
|
118 |
|
try { |
122 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
123 |
|
|
124 |
|
try { |
125 |
< |
f.get(5L, SECONDS); |
125 |
> |
f.get(randomTimeout(), randomTimeUnit()); |
126 |
|
shouldThrow(); |
127 |
|
} catch (CancellationException success) { |
128 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
129 |
+ |
} |
130 |
|
|
131 |
< |
assertFalse(f.cancel(false)); |
132 |
< |
assertFalse(f.cancel(true)); |
131 |
> |
void tryToConfuseDoneTask(PublicFutureTask pf) { |
132 |
> |
pf.set(new Object()); |
133 |
> |
pf.setException(new Error()); |
134 |
> |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { |
135 |
> |
pf.cancel(mayInterruptIfRunning); |
136 |
> |
} |
137 |
|
} |
138 |
|
|
139 |
|
void checkCompletedAbnormally(Future<?> f, Throwable t) { |
140 |
< |
assertTrue(f.isDone()); |
140 |
> |
checkIsDone(f); |
141 |
|
assertFalse(f.isCancelled()); |
142 |
|
|
143 |
|
try { |
148 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
149 |
|
|
150 |
|
try { |
151 |
< |
f.get(5L, SECONDS); |
151 |
> |
f.get(randomTimeout(), randomTimeUnit()); |
152 |
|
shouldThrow(); |
153 |
|
} catch (ExecutionException success) { |
154 |
|
assertSame(t, success.getCause()); |
155 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
87 |
– |
|
88 |
– |
assertFalse(f.cancel(false)); |
89 |
– |
assertFalse(f.cancel(true)); |
156 |
|
} |
157 |
|
|
158 |
|
/** |
159 |
|
* Subclass to expose protected methods |
160 |
|
*/ |
161 |
|
static class PublicFutureTask extends FutureTask { |
162 |
< |
public PublicFutureTask(Callable r) { super(r); } |
163 |
< |
public boolean runAndReset() { return super.runAndReset(); } |
164 |
< |
public void set(Object x) { super.set(x); } |
165 |
< |
public void setException(Throwable t) { super.setException(t); } |
162 |
> |
private final AtomicInteger runCount; |
163 |
> |
private final AtomicInteger doneCount = new AtomicInteger(0); |
164 |
> |
private final AtomicInteger runAndResetCount = new AtomicInteger(0); |
165 |
> |
private final AtomicInteger setCount = new AtomicInteger(0); |
166 |
> |
private final AtomicInteger setExceptionCount = new AtomicInteger(0); |
167 |
> |
public int runCount() { return runCount.get(); } |
168 |
> |
public int doneCount() { return doneCount.get(); } |
169 |
> |
public int runAndResetCount() { return runAndResetCount.get(); } |
170 |
> |
public int setCount() { return setCount.get(); } |
171 |
> |
public int setExceptionCount() { return setExceptionCount.get(); } |
172 |
> |
|
173 |
> |
PublicFutureTask(Runnable runnable) { |
174 |
> |
this(runnable, seven); |
175 |
> |
} |
176 |
> |
PublicFutureTask(Runnable runnable, Object result) { |
177 |
> |
this(runnable, result, new AtomicInteger(0)); |
178 |
> |
} |
179 |
> |
private PublicFutureTask(final Runnable runnable, Object result, |
180 |
> |
final AtomicInteger runCount) { |
181 |
> |
super(new Runnable() { |
182 |
> |
public void run() { |
183 |
> |
runCount.getAndIncrement(); |
184 |
> |
runnable.run(); |
185 |
> |
}}, result); |
186 |
> |
this.runCount = runCount; |
187 |
> |
} |
188 |
> |
PublicFutureTask(Callable callable) { |
189 |
> |
this(callable, new AtomicInteger(0)); |
190 |
> |
} |
191 |
> |
private PublicFutureTask(final Callable callable, |
192 |
> |
final AtomicInteger runCount) { |
193 |
> |
super(new Callable() { |
194 |
> |
public Object call() throws Exception { |
195 |
> |
runCount.getAndIncrement(); |
196 |
> |
return callable.call(); |
197 |
> |
}}); |
198 |
> |
this.runCount = runCount; |
199 |
> |
} |
200 |
> |
@Override public void done() { |
201 |
> |
assertTrue(isDone()); |
202 |
> |
doneCount.incrementAndGet(); |
203 |
> |
super.done(); |
204 |
> |
} |
205 |
> |
@Override public boolean runAndReset() { |
206 |
> |
runAndResetCount.incrementAndGet(); |
207 |
> |
return super.runAndReset(); |
208 |
> |
} |
209 |
> |
@Override public void set(Object x) { |
210 |
> |
setCount.incrementAndGet(); |
211 |
> |
super.set(x); |
212 |
> |
} |
213 |
> |
@Override public void setException(Throwable t) { |
214 |
> |
setExceptionCount.incrementAndGet(); |
215 |
> |
super.setException(t); |
216 |
> |
} |
217 |
> |
} |
218 |
> |
|
219 |
> |
class Counter extends CheckedRunnable { |
220 |
> |
final AtomicInteger count = new AtomicInteger(0); |
221 |
> |
public int get() { return count.get(); } |
222 |
> |
public void realRun() { |
223 |
> |
count.getAndIncrement(); |
224 |
> |
} |
225 |
|
} |
226 |
|
|
227 |
|
/** |
228 |
< |
* Creating a future with a null callable throws NPE |
228 |
> |
* creating a future with a null callable throws NullPointerException |
229 |
|
*/ |
230 |
|
public void testConstructor() { |
231 |
|
try { |
232 |
< |
FutureTask task = new FutureTask(null); |
232 |
> |
new FutureTask(null); |
233 |
|
shouldThrow(); |
234 |
|
} catch (NullPointerException success) {} |
235 |
|
} |
236 |
|
|
237 |
|
/** |
238 |
< |
* creating a future with null runnable fails |
238 |
> |
* creating a future with null runnable throws NullPointerException |
239 |
|
*/ |
240 |
|
public void testConstructor2() { |
241 |
|
try { |
242 |
< |
FutureTask task = new FutureTask(null, Boolean.TRUE); |
242 |
> |
new FutureTask(null, Boolean.TRUE); |
243 |
|
shouldThrow(); |
244 |
|
} catch (NullPointerException success) {} |
245 |
|
} |
248 |
|
* isDone is true when a task completes |
249 |
|
*/ |
250 |
|
public void testIsDone() { |
251 |
< |
FutureTask task = new FutureTask(new NoOpCallable()); |
251 |
> |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
252 |
> |
assertFalse(task.isDone()); |
253 |
|
task.run(); |
254 |
|
assertTrue(task.isDone()); |
255 |
|
checkCompletedNormally(task, Boolean.TRUE); |
256 |
+ |
assertEquals(1, task.runCount()); |
257 |
|
} |
258 |
|
|
259 |
|
/** |
261 |
|
*/ |
262 |
|
public void testRunAndReset() { |
263 |
|
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
264 |
< |
assertTrue(task.runAndReset()); |
265 |
< |
checkNotDone(task); |
264 |
> |
for (int i = 0; i < 3; i++) { |
265 |
> |
assertTrue(task.runAndReset()); |
266 |
> |
checkNotDone(task); |
267 |
> |
assertEquals(i + 1, task.runCount()); |
268 |
> |
assertEquals(i + 1, task.runAndResetCount()); |
269 |
> |
assertEquals(0, task.setCount()); |
270 |
> |
assertEquals(0, task.setExceptionCount()); |
271 |
> |
} |
272 |
|
} |
273 |
|
|
274 |
|
/** |
275 |
|
* runAndReset after cancellation fails |
276 |
|
*/ |
277 |
< |
public void testResetAfterCancel() { |
278 |
< |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
279 |
< |
assertTrue(task.cancel(false)); |
280 |
< |
assertFalse(task.runAndReset()); |
281 |
< |
checkCancelled(task); |
277 |
> |
public void testRunAndResetAfterCancel() { |
278 |
> |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { |
279 |
> |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
280 |
> |
assertTrue(task.cancel(mayInterruptIfRunning)); |
281 |
> |
for (int i = 0; i < 3; i++) { |
282 |
> |
assertFalse(task.runAndReset()); |
283 |
> |
assertEquals(0, task.runCount()); |
284 |
> |
assertEquals(i + 1, task.runAndResetCount()); |
285 |
> |
assertEquals(0, task.setCount()); |
286 |
> |
assertEquals(0, task.setExceptionCount()); |
287 |
> |
} |
288 |
> |
tryToConfuseDoneTask(task); |
289 |
> |
checkCancelled(task); |
290 |
> |
} |
291 |
|
} |
292 |
|
|
293 |
|
/** |
296 |
|
public void testSet() throws Exception { |
297 |
|
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
298 |
|
task.set(one); |
299 |
< |
assertSame(task.get(), one); |
299 |
> |
for (int i = 0; i < 3; i++) { |
300 |
> |
assertSame(one, task.get()); |
301 |
> |
assertSame(one, task.get(LONG_DELAY_MS, MILLISECONDS)); |
302 |
> |
assertEquals(1, task.setCount()); |
303 |
> |
} |
304 |
> |
tryToConfuseDoneTask(task); |
305 |
|
checkCompletedNormally(task, one); |
306 |
+ |
assertEquals(0, task.runCount()); |
307 |
|
} |
308 |
|
|
309 |
|
/** |
310 |
|
* setException causes get to throw ExecutionException |
311 |
|
*/ |
312 |
< |
public void testSetException() throws Exception { |
312 |
> |
public void testSetException_get() throws Exception { |
313 |
|
Exception nse = new NoSuchElementException(); |
314 |
|
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
315 |
|
task.setException(nse); |
316 |
+ |
|
317 |
+ |
try { |
318 |
+ |
task.get(); |
319 |
+ |
shouldThrow(); |
320 |
+ |
} catch (ExecutionException success) { |
321 |
+ |
assertSame(nse, success.getCause()); |
322 |
+ |
checkCompletedAbnormally(task, nse); |
323 |
+ |
} |
324 |
+ |
|
325 |
|
try { |
326 |
< |
Object x = task.get(); |
326 |
> |
task.get(LONG_DELAY_MS, MILLISECONDS); |
327 |
|
shouldThrow(); |
328 |
|
} catch (ExecutionException success) { |
329 |
< |
assertSame(success.getCause(), nse); |
329 |
> |
assertSame(nse, success.getCause()); |
330 |
|
checkCompletedAbnormally(task, nse); |
331 |
|
} |
332 |
+ |
|
333 |
+ |
assertEquals(1, task.setExceptionCount()); |
334 |
+ |
assertEquals(0, task.setCount()); |
335 |
+ |
tryToConfuseDoneTask(task); |
336 |
+ |
checkCompletedAbnormally(task, nse); |
337 |
+ |
assertEquals(0, task.runCount()); |
338 |
|
} |
339 |
|
|
340 |
|
/** |
341 |
< |
* Cancelling before running succeeds |
341 |
> |
* cancel(false) before run succeeds |
342 |
|
*/ |
343 |
|
public void testCancelBeforeRun() { |
344 |
< |
FutureTask task = new FutureTask(new NoOpCallable()); |
344 |
> |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
345 |
|
assertTrue(task.cancel(false)); |
346 |
|
task.run(); |
347 |
+ |
assertEquals(0, task.runCount()); |
348 |
+ |
assertEquals(0, task.setCount()); |
349 |
+ |
assertEquals(0, task.setExceptionCount()); |
350 |
+ |
assertTrue(task.isCancelled()); |
351 |
+ |
assertTrue(task.isDone()); |
352 |
+ |
tryToConfuseDoneTask(task); |
353 |
+ |
assertEquals(0, task.runCount()); |
354 |
|
checkCancelled(task); |
355 |
|
} |
356 |
|
|
357 |
|
/** |
358 |
< |
* Cancel(true) before run succeeds |
358 |
> |
* cancel(true) before run succeeds |
359 |
|
*/ |
360 |
|
public void testCancelBeforeRun2() { |
361 |
< |
FutureTask task = new FutureTask(new NoOpCallable()); |
361 |
> |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
362 |
|
assertTrue(task.cancel(true)); |
363 |
|
task.run(); |
364 |
+ |
assertEquals(0, task.runCount()); |
365 |
+ |
assertEquals(0, task.setCount()); |
366 |
+ |
assertEquals(0, task.setExceptionCount()); |
367 |
+ |
assertTrue(task.isCancelled()); |
368 |
+ |
assertTrue(task.isDone()); |
369 |
+ |
tryToConfuseDoneTask(task); |
370 |
+ |
assertEquals(0, task.runCount()); |
371 |
|
checkCancelled(task); |
372 |
|
} |
373 |
|
|
374 |
|
/** |
375 |
< |
* cancel of a completed task fails |
375 |
> |
* cancel(false) of a completed task fails |
376 |
|
*/ |
377 |
|
public void testCancelAfterRun() { |
378 |
< |
FutureTask task = new FutureTask(new NoOpCallable()); |
378 |
> |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
379 |
|
task.run(); |
380 |
|
assertFalse(task.cancel(false)); |
381 |
+ |
assertEquals(1, task.runCount()); |
382 |
+ |
assertEquals(1, task.setCount()); |
383 |
+ |
assertEquals(0, task.setExceptionCount()); |
384 |
+ |
tryToConfuseDoneTask(task); |
385 |
|
checkCompletedNormally(task, Boolean.TRUE); |
386 |
+ |
assertEquals(1, task.runCount()); |
387 |
|
} |
388 |
|
|
389 |
|
/** |
390 |
< |
* cancel(true) interrupts a running task |
390 |
> |
* cancel(true) of a completed task fails |
391 |
|
*/ |
392 |
< |
public void testCancelInterrupt() throws InterruptedException { |
393 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
394 |
< |
final FutureTask task = |
395 |
< |
new FutureTask(new CheckedCallable<Object>() { |
396 |
< |
public Object realCall() { |
397 |
< |
threadStarted.countDown(); |
398 |
< |
long t0 = System.nanoTime(); |
399 |
< |
for (;;) { |
400 |
< |
if (Thread.interrupted()) |
401 |
< |
return Boolean.TRUE; |
402 |
< |
if (millisElapsedSince(t0) > MEDIUM_DELAY_MS) |
403 |
< |
fail("interrupt not delivered"); |
404 |
< |
Thread.yield(); |
405 |
< |
} |
392 |
> |
public void testCancelAfterRun2() { |
393 |
> |
PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
394 |
> |
task.run(); |
395 |
> |
assertFalse(task.cancel(true)); |
396 |
> |
assertEquals(1, task.runCount()); |
397 |
> |
assertEquals(1, task.setCount()); |
398 |
> |
assertEquals(0, task.setExceptionCount()); |
399 |
> |
tryToConfuseDoneTask(task); |
400 |
> |
checkCompletedNormally(task, Boolean.TRUE); |
401 |
> |
assertEquals(1, task.runCount()); |
402 |
> |
} |
403 |
> |
|
404 |
> |
/** |
405 |
> |
* cancel(true) interrupts a running task that subsequently succeeds |
406 |
> |
*/ |
407 |
> |
public void testCancelInterrupt() { |
408 |
> |
final CountDownLatch pleaseCancel = new CountDownLatch(1); |
409 |
> |
final PublicFutureTask task = |
410 |
> |
new PublicFutureTask(new CheckedRunnable() { |
411 |
> |
public void realRun() { |
412 |
> |
pleaseCancel.countDown(); |
413 |
> |
try { |
414 |
> |
delay(LONG_DELAY_MS); |
415 |
> |
shouldThrow(); |
416 |
> |
} catch (InterruptedException success) {} |
417 |
> |
assertFalse(Thread.interrupted()); |
418 |
|
}}); |
419 |
|
|
420 |
|
Thread t = newStartedThread(task); |
421 |
< |
threadStarted.await(); |
421 |
> |
await(pleaseCancel); |
422 |
|
assertTrue(task.cancel(true)); |
423 |
< |
checkCancelled(task); |
424 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
423 |
> |
assertTrue(task.isCancelled()); |
424 |
> |
assertTrue(task.isDone()); |
425 |
> |
awaitTermination(t); |
426 |
> |
assertEquals(1, task.runCount()); |
427 |
> |
assertEquals(1, task.setCount()); |
428 |
> |
assertEquals(0, task.setExceptionCount()); |
429 |
> |
tryToConfuseDoneTask(task); |
430 |
|
checkCancelled(task); |
431 |
|
} |
432 |
|
|
433 |
|
/** |
434 |
< |
* cancel(false) does not interrupt a running task |
434 |
> |
* cancel(true) tries to interrupt a running task, but |
435 |
> |
* Thread.interrupt throws (simulating a restrictive security |
436 |
> |
* manager) |
437 |
|
*/ |
438 |
< |
public void testCancelNoInterrupt() throws InterruptedException { |
439 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
438 |
> |
public void testCancelInterrupt_ThrowsSecurityException() { |
439 |
> |
final CountDownLatch pleaseCancel = new CountDownLatch(1); |
440 |
|
final CountDownLatch cancelled = new CountDownLatch(1); |
441 |
< |
final FutureTask<Boolean> task = |
442 |
< |
new FutureTask<Boolean>(new CheckedCallable<Boolean>() { |
443 |
< |
public Boolean realCall() throws InterruptedException { |
444 |
< |
threadStarted.countDown(); |
445 |
< |
cancelled.await(MEDIUM_DELAY_MS, MILLISECONDS); |
441 |
> |
final PublicFutureTask task = |
442 |
> |
new PublicFutureTask(new CheckedRunnable() { |
443 |
> |
public void realRun() { |
444 |
> |
pleaseCancel.countDown(); |
445 |
> |
await(cancelled); |
446 |
|
assertFalse(Thread.interrupted()); |
246 |
– |
return Boolean.TRUE; |
447 |
|
}}); |
448 |
|
|
449 |
< |
Thread t = newStartedThread(task); |
450 |
< |
threadStarted.await(); |
451 |
< |
assertTrue(task.cancel(false)); |
452 |
< |
checkCancelled(task); |
449 |
> |
final Thread t = new Thread(task) { |
450 |
> |
// Simulate a restrictive security manager. |
451 |
> |
@Override public void interrupt() { |
452 |
> |
throw new SecurityException(); |
453 |
> |
}}; |
454 |
> |
t.setDaemon(true); |
455 |
> |
t.start(); |
456 |
> |
|
457 |
> |
await(pleaseCancel); |
458 |
> |
try { |
459 |
> |
task.cancel(true); |
460 |
> |
shouldThrow(); |
461 |
> |
} catch (SecurityException expected) {} |
462 |
> |
|
463 |
> |
// We failed to deliver the interrupt, but the world retains |
464 |
> |
// its sanity, as if we had done task.cancel(false) |
465 |
> |
assertTrue(task.isCancelled()); |
466 |
> |
assertTrue(task.isDone()); |
467 |
> |
assertEquals(1, task.runCount()); |
468 |
> |
assertEquals(1, task.doneCount()); |
469 |
> |
assertEquals(0, task.setCount()); |
470 |
> |
assertEquals(0, task.setExceptionCount()); |
471 |
|
cancelled.countDown(); |
472 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
472 |
> |
awaitTermination(t); |
473 |
> |
assertEquals(1, task.setCount()); |
474 |
> |
assertEquals(0, task.setExceptionCount()); |
475 |
> |
tryToConfuseDoneTask(task); |
476 |
|
checkCancelled(task); |
477 |
|
} |
478 |
|
|
479 |
|
/** |
480 |
< |
* run in one thread causes get in another thread to retrieve value |
480 |
> |
* cancel(true) interrupts a running task that subsequently throws |
481 |
|
*/ |
482 |
< |
public void testGetRun() throws InterruptedException { |
483 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
484 |
< |
|
485 |
< |
final FutureTask task = |
486 |
< |
new FutureTask(new CheckedCallable<Object>() { |
487 |
< |
public Object realCall() throws InterruptedException { |
488 |
< |
return Boolean.TRUE; |
482 |
> |
public void testCancelInterrupt_taskFails() { |
483 |
> |
final CountDownLatch pleaseCancel = new CountDownLatch(1); |
484 |
> |
final PublicFutureTask task = |
485 |
> |
new PublicFutureTask(new Runnable() { |
486 |
> |
public void run() { |
487 |
> |
pleaseCancel.countDown(); |
488 |
> |
try { |
489 |
> |
delay(LONG_DELAY_MS); |
490 |
> |
threadShouldThrow(); |
491 |
> |
} catch (InterruptedException success) { |
492 |
> |
} catch (Throwable t) { threadUnexpectedException(t); } |
493 |
> |
throw new RuntimeException(); |
494 |
|
}}); |
495 |
|
|
496 |
< |
Thread t = newStartedThread(new CheckedRunnable() { |
497 |
< |
public void realRun() throws Exception { |
498 |
< |
threadStarted.countDown(); |
499 |
< |
assertSame(Boolean.TRUE, task.get()); |
500 |
< |
}}); |
501 |
< |
|
502 |
< |
threadStarted.await(); |
503 |
< |
checkNotDone(task); |
504 |
< |
assertTrue(t.isAlive()); |
505 |
< |
task.run(); |
280 |
< |
checkCompletedNormally(task, Boolean.TRUE); |
281 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
496 |
> |
Thread t = newStartedThread(task); |
497 |
> |
await(pleaseCancel); |
498 |
> |
assertTrue(task.cancel(true)); |
499 |
> |
assertTrue(task.isCancelled()); |
500 |
> |
awaitTermination(t); |
501 |
> |
assertEquals(1, task.runCount()); |
502 |
> |
assertEquals(0, task.setCount()); |
503 |
> |
assertEquals(1, task.setExceptionCount()); |
504 |
> |
tryToConfuseDoneTask(task); |
505 |
> |
checkCancelled(task); |
506 |
|
} |
507 |
|
|
508 |
|
/** |
509 |
< |
* set in one thread causes get in another thread to retrieve value |
509 |
> |
* cancel(false) does not interrupt a running task |
510 |
|
*/ |
511 |
< |
public void testGetSet() throws InterruptedException { |
512 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
513 |
< |
|
511 |
> |
public void testCancelNoInterrupt() { |
512 |
> |
final CountDownLatch pleaseCancel = new CountDownLatch(1); |
513 |
> |
final CountDownLatch cancelled = new CountDownLatch(1); |
514 |
|
final PublicFutureTask task = |
515 |
< |
new PublicFutureTask(new CheckedCallable<Object>() { |
516 |
< |
public Object realCall() throws InterruptedException { |
515 |
> |
new PublicFutureTask(new CheckedCallable<Boolean>() { |
516 |
> |
public Boolean realCall() { |
517 |
> |
pleaseCancel.countDown(); |
518 |
> |
await(cancelled); |
519 |
> |
assertFalse(Thread.interrupted()); |
520 |
|
return Boolean.TRUE; |
521 |
|
}}); |
522 |
|
|
523 |
< |
Thread t = newStartedThread(new CheckedRunnable() { |
524 |
< |
public void realRun() throws Exception { |
525 |
< |
threadStarted.countDown(); |
526 |
< |
assertSame(Boolean.FALSE, task.get()); |
527 |
< |
}}); |
528 |
< |
|
529 |
< |
threadStarted.await(); |
530 |
< |
checkNotDone(task); |
531 |
< |
assertTrue(t.isAlive()); |
532 |
< |
task.set(Boolean.FALSE); |
533 |
< |
checkCompletedNormally(task, Boolean.FALSE); |
307 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
523 |
> |
Thread t = newStartedThread(task); |
524 |
> |
await(pleaseCancel); |
525 |
> |
assertTrue(task.cancel(false)); |
526 |
> |
assertTrue(task.isCancelled()); |
527 |
> |
cancelled.countDown(); |
528 |
> |
awaitTermination(t); |
529 |
> |
assertEquals(1, task.runCount()); |
530 |
> |
assertEquals(1, task.setCount()); |
531 |
> |
assertEquals(0, task.setExceptionCount()); |
532 |
> |
tryToConfuseDoneTask(task); |
533 |
> |
checkCancelled(task); |
534 |
|
} |
535 |
|
|
536 |
|
/** |
537 |
< |
* run in one thread causes timed get in another thread to retrieve value |
537 |
> |
* run in one thread causes get in another thread to retrieve value |
538 |
|
*/ |
539 |
< |
public void testTimedGetRun() throws InterruptedException { |
540 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
539 |
> |
public void testGetRun() { |
540 |
> |
final CountDownLatch pleaseRun = new CountDownLatch(2); |
541 |
|
|
542 |
< |
final FutureTask task = |
543 |
< |
new FutureTask(new CheckedCallable<Object>() { |
544 |
< |
public Object realCall() throws InterruptedException { |
545 |
< |
return Boolean.TRUE; |
542 |
> |
final PublicFutureTask task = |
543 |
> |
new PublicFutureTask(new CheckedCallable<Object>() { |
544 |
> |
public Object realCall() { |
545 |
> |
return two; |
546 |
|
}}); |
547 |
|
|
548 |
< |
Thread t = newStartedThread(new CheckedRunnable() { |
548 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
549 |
|
public void realRun() throws Exception { |
550 |
< |
threadStarted.countDown(); |
551 |
< |
assertSame(Boolean.TRUE, |
326 |
< |
task.get(MEDIUM_DELAY_MS, MILLISECONDS)); |
550 |
> |
pleaseRun.countDown(); |
551 |
> |
assertSame(two, task.get()); |
552 |
|
}}); |
553 |
|
|
554 |
< |
threadStarted.await(); |
554 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
555 |
> |
public void realRun() throws Exception { |
556 |
> |
pleaseRun.countDown(); |
557 |
> |
assertSame(two, task.get(2*LONG_DELAY_MS, MILLISECONDS)); |
558 |
> |
}}); |
559 |
> |
|
560 |
> |
await(pleaseRun); |
561 |
|
checkNotDone(task); |
562 |
< |
assertTrue(t.isAlive()); |
562 |
> |
assertTrue(t1.isAlive()); |
563 |
> |
assertTrue(t2.isAlive()); |
564 |
|
task.run(); |
565 |
< |
checkCompletedNormally(task, Boolean.TRUE); |
566 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
565 |
> |
checkCompletedNormally(task, two); |
566 |
> |
assertEquals(1, task.runCount()); |
567 |
> |
assertEquals(1, task.setCount()); |
568 |
> |
assertEquals(0, task.setExceptionCount()); |
569 |
> |
awaitTermination(t1); |
570 |
> |
awaitTermination(t2); |
571 |
> |
tryToConfuseDoneTask(task); |
572 |
> |
checkCompletedNormally(task, two); |
573 |
|
} |
574 |
|
|
575 |
|
/** |
576 |
< |
* set in one thread causes timed get in another thread to retrieve value |
576 |
> |
* set in one thread causes get in another thread to retrieve value |
577 |
|
*/ |
578 |
< |
public void testTimedGetSet() throws InterruptedException { |
579 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
578 |
> |
public void testGetSet() { |
579 |
> |
final CountDownLatch pleaseSet = new CountDownLatch(2); |
580 |
|
|
581 |
|
final PublicFutureTask task = |
582 |
|
new PublicFutureTask(new CheckedCallable<Object>() { |
583 |
|
public Object realCall() throws InterruptedException { |
584 |
< |
return Boolean.TRUE; |
584 |
> |
return two; |
585 |
|
}}); |
586 |
|
|
587 |
< |
Thread t = newStartedThread(new CheckedRunnable() { |
587 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
588 |
> |
public void realRun() throws Exception { |
589 |
> |
pleaseSet.countDown(); |
590 |
> |
assertSame(two, task.get()); |
591 |
> |
}}); |
592 |
> |
|
593 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
594 |
|
public void realRun() throws Exception { |
595 |
< |
threadStarted.countDown(); |
596 |
< |
assertSame(Boolean.FALSE, |
353 |
< |
task.get(MEDIUM_DELAY_MS, MILLISECONDS)); |
595 |
> |
pleaseSet.countDown(); |
596 |
> |
assertSame(two, task.get(2*LONG_DELAY_MS, MILLISECONDS)); |
597 |
|
}}); |
598 |
|
|
599 |
< |
threadStarted.await(); |
599 |
> |
await(pleaseSet); |
600 |
|
checkNotDone(task); |
601 |
< |
assertTrue(t.isAlive()); |
602 |
< |
task.set(Boolean.FALSE); |
603 |
< |
checkCompletedNormally(task, Boolean.FALSE); |
604 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
601 |
> |
assertTrue(t1.isAlive()); |
602 |
> |
assertTrue(t2.isAlive()); |
603 |
> |
task.set(two); |
604 |
> |
assertEquals(0, task.runCount()); |
605 |
> |
assertEquals(1, task.setCount()); |
606 |
> |
assertEquals(0, task.setExceptionCount()); |
607 |
> |
tryToConfuseDoneTask(task); |
608 |
> |
checkCompletedNormally(task, two); |
609 |
> |
awaitTermination(t1); |
610 |
> |
awaitTermination(t2); |
611 |
|
} |
612 |
|
|
613 |
|
/** |
614 |
|
* Cancelling a task causes timed get in another thread to throw |
615 |
|
* CancellationException |
616 |
|
*/ |
617 |
< |
public void testTimedGet_Cancellation() throws InterruptedException { |
618 |
< |
final CountDownLatch threadStarted = new CountDownLatch(2); |
370 |
< |
final FutureTask task = |
371 |
< |
new FutureTask(new CheckedInterruptedCallable<Object>() { |
372 |
< |
public Object realCall() throws InterruptedException { |
373 |
< |
threadStarted.countDown(); |
374 |
< |
delay(LONG_DELAY_MS); |
375 |
< |
return Boolean.TRUE; |
376 |
< |
}}); |
377 |
< |
|
378 |
< |
Thread t1 = new ThreadShouldThrow(CancellationException.class) { |
379 |
< |
public void realRun() throws Exception { |
380 |
< |
threadStarted.countDown(); |
381 |
< |
task.get(MEDIUM_DELAY_MS, MILLISECONDS); |
382 |
< |
}}; |
383 |
< |
Thread t2 = new Thread(task); |
384 |
< |
t1.start(); |
385 |
< |
t2.start(); |
386 |
< |
threadStarted.await(); |
387 |
< |
task.cancel(true); |
388 |
< |
awaitTermination(t1, MEDIUM_DELAY_MS); |
389 |
< |
awaitTermination(t2, MEDIUM_DELAY_MS); |
390 |
< |
checkCancelled(task); |
617 |
> |
public void testTimedGet_Cancellation() { |
618 |
> |
testTimedGet_Cancellation(false); |
619 |
|
} |
620 |
< |
|
621 |
< |
/** |
622 |
< |
* Cancelling a task causes get in another thread to throw |
623 |
< |
* CancellationException |
624 |
< |
*/ |
625 |
< |
public void testGet_Cancellation() throws InterruptedException { |
626 |
< |
final CountDownLatch threadStarted = new CountDownLatch(2); |
627 |
< |
final FutureTask task = |
628 |
< |
new FutureTask(new CheckedInterruptedCallable<Object>() { |
629 |
< |
public Object realCall() throws InterruptedException { |
630 |
< |
threadStarted.countDown(); |
631 |
< |
delay(LONG_DELAY_MS); |
632 |
< |
return Boolean.TRUE; |
633 |
< |
}}); |
620 |
> |
public void testTimedGet_Cancellation_interrupt() { |
621 |
> |
testTimedGet_Cancellation(true); |
622 |
> |
} |
623 |
> |
public void testTimedGet_Cancellation(final boolean mayInterruptIfRunning) { |
624 |
> |
final CountDownLatch pleaseCancel = new CountDownLatch(3); |
625 |
> |
final CountDownLatch cancelled = new CountDownLatch(1); |
626 |
> |
final Callable<Object> callable = |
627 |
> |
new CheckedCallable<Object>() { |
628 |
> |
public Object realCall() throws InterruptedException { |
629 |
> |
pleaseCancel.countDown(); |
630 |
> |
if (mayInterruptIfRunning) { |
631 |
> |
try { |
632 |
> |
delay(2*LONG_DELAY_MS); |
633 |
> |
} catch (InterruptedException success) {} |
634 |
> |
} else { |
635 |
> |
await(cancelled); |
636 |
> |
} |
637 |
> |
return two; |
638 |
> |
}}; |
639 |
> |
final PublicFutureTask task = new PublicFutureTask(callable); |
640 |
|
|
641 |
|
Thread t1 = new ThreadShouldThrow(CancellationException.class) { |
642 |
< |
public void realRun() throws Exception { |
643 |
< |
threadStarted.countDown(); |
644 |
< |
task.get(); |
645 |
< |
}}; |
646 |
< |
Thread t2 = new Thread(task); |
642 |
> |
public void realRun() throws Exception { |
643 |
> |
pleaseCancel.countDown(); |
644 |
> |
task.get(); |
645 |
> |
}}; |
646 |
> |
Thread t2 = new ThreadShouldThrow(CancellationException.class) { |
647 |
> |
public void realRun() throws Exception { |
648 |
> |
pleaseCancel.countDown(); |
649 |
> |
task.get(2*LONG_DELAY_MS, MILLISECONDS); |
650 |
> |
}}; |
651 |
|
t1.start(); |
652 |
|
t2.start(); |
653 |
< |
threadStarted.await(); |
654 |
< |
task.cancel(true); |
655 |
< |
awaitTermination(t1, MEDIUM_DELAY_MS); |
656 |
< |
awaitTermination(t2, MEDIUM_DELAY_MS); |
653 |
> |
Thread t3 = newStartedThread(task); |
654 |
> |
await(pleaseCancel); |
655 |
> |
checkIsRunning(task); |
656 |
> |
task.cancel(mayInterruptIfRunning); |
657 |
> |
checkCancelled(task); |
658 |
> |
awaitTermination(t1); |
659 |
> |
awaitTermination(t2); |
660 |
> |
cancelled.countDown(); |
661 |
> |
awaitTermination(t3); |
662 |
> |
assertEquals(1, task.runCount()); |
663 |
> |
assertEquals(1, task.setCount()); |
664 |
> |
assertEquals(0, task.setExceptionCount()); |
665 |
> |
tryToConfuseDoneTask(task); |
666 |
|
checkCancelled(task); |
667 |
|
} |
668 |
|
|
670 |
|
* A runtime exception in task causes get to throw ExecutionException |
671 |
|
*/ |
672 |
|
public void testGet_ExecutionException() throws InterruptedException { |
673 |
< |
final FutureTask task = new FutureTask(new Callable() { |
673 |
> |
final ArithmeticException e = new ArithmeticException(); |
674 |
> |
final PublicFutureTask task = new PublicFutureTask(new Callable() { |
675 |
|
public Object call() { |
676 |
< |
return 5/0; |
676 |
> |
throw e; |
677 |
|
}}); |
678 |
|
|
679 |
|
task.run(); |
680 |
+ |
assertEquals(1, task.runCount()); |
681 |
+ |
assertEquals(0, task.setCount()); |
682 |
+ |
assertEquals(1, task.setExceptionCount()); |
683 |
|
try { |
684 |
|
task.get(); |
685 |
|
shouldThrow(); |
686 |
|
} catch (ExecutionException success) { |
687 |
< |
assertTrue(success.getCause() instanceof ArithmeticException); |
687 |
> |
assertSame(e, success.getCause()); |
688 |
> |
tryToConfuseDoneTask(task); |
689 |
|
checkCompletedAbnormally(task, success.getCause()); |
690 |
|
} |
691 |
|
} |
694 |
|
* A runtime exception in task causes timed get to throw ExecutionException |
695 |
|
*/ |
696 |
|
public void testTimedGet_ExecutionException2() throws Exception { |
697 |
< |
final FutureTask task = new FutureTask(new Callable() { |
697 |
> |
final ArithmeticException e = new ArithmeticException(); |
698 |
> |
final PublicFutureTask task = new PublicFutureTask(new Callable() { |
699 |
|
public Object call() { |
700 |
< |
return 5/0; |
700 |
> |
throw e; |
701 |
|
}}); |
702 |
|
|
703 |
|
task.run(); |
704 |
|
try { |
705 |
< |
task.get(SHORT_DELAY_MS, MILLISECONDS); |
705 |
> |
task.get(LONG_DELAY_MS, MILLISECONDS); |
706 |
|
shouldThrow(); |
707 |
|
} catch (ExecutionException success) { |
708 |
< |
assertTrue(success.getCause() instanceof ArithmeticException); |
708 |
> |
assertSame(e, success.getCause()); |
709 |
> |
tryToConfuseDoneTask(task); |
710 |
|
checkCompletedAbnormally(task, success.getCause()); |
711 |
|
} |
712 |
|
} |
713 |
|
|
714 |
|
/** |
715 |
< |
* Interrupting a waiting get causes it to throw InterruptedException |
715 |
> |
* get is interruptible |
716 |
|
*/ |
717 |
< |
public void testGet_InterruptedException() throws InterruptedException { |
718 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
717 |
> |
public void testGet_interruptible() { |
718 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
719 |
|
final FutureTask task = new FutureTask(new NoOpCallable()); |
720 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
720 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
721 |
|
public void realRun() throws Exception { |
722 |
< |
threadStarted.countDown(); |
723 |
< |
task.get(); |
722 |
> |
Thread.currentThread().interrupt(); |
723 |
> |
try { |
724 |
> |
task.get(); |
725 |
> |
shouldThrow(); |
726 |
> |
} catch (InterruptedException success) {} |
727 |
> |
assertFalse(Thread.interrupted()); |
728 |
> |
|
729 |
> |
pleaseInterrupt.countDown(); |
730 |
> |
try { |
731 |
> |
task.get(); |
732 |
> |
shouldThrow(); |
733 |
> |
} catch (InterruptedException success) {} |
734 |
> |
assertFalse(Thread.interrupted()); |
735 |
|
}}); |
736 |
|
|
737 |
< |
threadStarted.await(); |
737 |
> |
await(pleaseInterrupt); |
738 |
|
t.interrupt(); |
739 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
739 |
> |
awaitTermination(t); |
740 |
|
checkNotDone(task); |
741 |
|
} |
742 |
|
|
743 |
|
/** |
744 |
< |
* Interrupting a waiting timed get causes it to throw InterruptedException |
744 |
> |
* timed get is interruptible |
745 |
|
*/ |
746 |
< |
public void testTimedGet_InterruptedException2() throws InterruptedException { |
747 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
746 |
> |
public void testTimedGet_interruptible() { |
747 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
748 |
|
final FutureTask task = new FutureTask(new NoOpCallable()); |
749 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
749 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
750 |
|
public void realRun() throws Exception { |
751 |
< |
threadStarted.countDown(); |
752 |
< |
task.get(LONG_DELAY_MS, MILLISECONDS); |
751 |
> |
Thread.currentThread().interrupt(); |
752 |
> |
try { |
753 |
> |
task.get(2*LONG_DELAY_MS, MILLISECONDS); |
754 |
> |
shouldThrow(); |
755 |
> |
} catch (InterruptedException success) {} |
756 |
> |
assertFalse(Thread.interrupted()); |
757 |
> |
|
758 |
> |
pleaseInterrupt.countDown(); |
759 |
> |
try { |
760 |
> |
task.get(2*LONG_DELAY_MS, MILLISECONDS); |
761 |
> |
shouldThrow(); |
762 |
> |
} catch (InterruptedException success) {} |
763 |
> |
assertFalse(Thread.interrupted()); |
764 |
|
}}); |
765 |
|
|
766 |
< |
threadStarted.await(); |
766 |
> |
await(pleaseInterrupt); |
767 |
|
t.interrupt(); |
768 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
768 |
> |
awaitTermination(t); |
769 |
|
checkNotDone(task); |
770 |
|
} |
771 |
|
|
773 |
|
* A timed out timed get throws TimeoutException |
774 |
|
*/ |
775 |
|
public void testGet_TimeoutException() throws Exception { |
776 |
+ |
FutureTask task = new FutureTask(new NoOpCallable()); |
777 |
+ |
long startTime = System.nanoTime(); |
778 |
|
try { |
779 |
< |
FutureTask task = new FutureTask(new NoOpCallable()); |
502 |
< |
task.get(1, MILLISECONDS); |
779 |
> |
task.get(timeoutMillis(), MILLISECONDS); |
780 |
|
shouldThrow(); |
781 |
< |
} catch (TimeoutException success) {} |
781 |
> |
} catch (TimeoutException success) { |
782 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
783 |
> |
} |
784 |
> |
} |
785 |
> |
|
786 |
> |
/** |
787 |
> |
* timed get with null TimeUnit throws NullPointerException |
788 |
> |
*/ |
789 |
> |
public void testGet_NullTimeUnit() throws Exception { |
790 |
> |
FutureTask task = new FutureTask(new NoOpCallable()); |
791 |
> |
long[] timeouts = { Long.MIN_VALUE, 0L, Long.MAX_VALUE }; |
792 |
> |
|
793 |
> |
for (long timeout : timeouts) { |
794 |
> |
try { |
795 |
> |
task.get(timeout, null); |
796 |
> |
shouldThrow(); |
797 |
> |
} catch (NullPointerException success) {} |
798 |
> |
} |
799 |
> |
|
800 |
> |
task.run(); |
801 |
> |
|
802 |
> |
for (long timeout : timeouts) { |
803 |
> |
try { |
804 |
> |
task.get(timeout, null); |
805 |
> |
shouldThrow(); |
806 |
> |
} catch (NullPointerException success) {} |
807 |
> |
} |
808 |
> |
} |
809 |
> |
|
810 |
> |
/** |
811 |
> |
* timed get with most negative timeout works correctly (i.e. no |
812 |
> |
* underflow bug) |
813 |
> |
*/ |
814 |
> |
public void testGet_NegativeInfinityTimeout() throws Exception { |
815 |
> |
final ExecutorService pool = Executors.newFixedThreadPool(10); |
816 |
> |
final Runnable nop = new Runnable() { public void run() {}}; |
817 |
> |
final FutureTask<Void> task = new FutureTask<>(nop, null); |
818 |
> |
final List<Future<?>> futures = new ArrayList<>(); |
819 |
> |
Runnable r = new Runnable() { public void run() { |
820 |
> |
for (long timeout : new long[] { 0L, -1L, Long.MIN_VALUE }) { |
821 |
> |
try { |
822 |
> |
task.get(timeout, NANOSECONDS); |
823 |
> |
shouldThrow(); |
824 |
> |
} catch (TimeoutException success) { |
825 |
> |
} catch (Throwable fail) {threadUnexpectedException(fail);}}}}; |
826 |
> |
for (int i = 0; i < 10; i++) |
827 |
> |
futures.add(pool.submit(r)); |
828 |
> |
try { |
829 |
> |
joinPool(pool); |
830 |
> |
for (Future<?> future : futures) |
831 |
> |
checkCompletedNormally(future, null); |
832 |
> |
} finally { |
833 |
> |
task.run(); // last resort to help terminate |
834 |
> |
} |
835 |
> |
} |
836 |
> |
|
837 |
> |
/** |
838 |
> |
* toString indicates current completion state |
839 |
> |
*/ |
840 |
> |
public void testToString_incomplete() { |
841 |
> |
FutureTask<String> f = new FutureTask<>(() -> ""); |
842 |
> |
assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]")); |
843 |
> |
if (testImplementationDetails) |
844 |
> |
assertTrue(f.toString().startsWith( |
845 |
> |
identityString(f) + "[Not completed, task =")); |
846 |
> |
} |
847 |
> |
|
848 |
> |
public void testToString_normal() { |
849 |
> |
FutureTask<String> f = new FutureTask<>(() -> ""); |
850 |
> |
f.run(); |
851 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]")); |
852 |
> |
if (testImplementationDetails) |
853 |
> |
assertEquals(identityString(f) + "[Completed normally]", |
854 |
> |
f.toString()); |
855 |
> |
} |
856 |
> |
|
857 |
> |
public void testToString_exception() { |
858 |
> |
FutureTask<String> f = new FutureTask<>( |
859 |
> |
() -> { throw new ArithmeticException(); }); |
860 |
> |
f.run(); |
861 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
862 |
> |
if (testImplementationDetails) |
863 |
> |
assertTrue(f.toString().startsWith( |
864 |
> |
identityString(f) + "[Completed exceptionally: ")); |
865 |
> |
} |
866 |
> |
|
867 |
> |
public void testToString_cancelled() { |
868 |
> |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { |
869 |
> |
FutureTask<String> f = new FutureTask<>(() -> ""); |
870 |
> |
assertTrue(f.cancel(mayInterruptIfRunning)); |
871 |
> |
assertTrue(f.toString().matches(".*\\[.*Cancelled.*\\]")); |
872 |
> |
if (testImplementationDetails) |
873 |
> |
assertEquals(identityString(f) + "[Cancelled]", |
874 |
> |
f.toString()); |
875 |
> |
} |
876 |
|
} |
877 |
|
|
878 |
|
} |