8 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
9 |
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import static java.util.concurrent.TimeUnit.SECONDS; |
10 |
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|
11 |
+ |
import java.lang.reflect.Method; |
12 |
+ |
import java.lang.reflect.Modifier; |
13 |
+ |
|
14 |
+ |
import java.util.stream.Collectors; |
15 |
+ |
import java.util.stream.Stream; |
16 |
+ |
|
17 |
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import java.util.ArrayList; |
18 |
+ |
import java.util.Arrays; |
19 |
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import java.util.List; |
20 |
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import java.util.Objects; |
21 |
+ |
import java.util.Set; |
22 |
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import java.util.concurrent.Callable; |
23 |
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import java.util.concurrent.CancellationException; |
24 |
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import java.util.concurrent.CompletableFuture; |
36 |
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import java.util.function.BiFunction; |
37 |
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import java.util.function.Consumer; |
38 |
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import java.util.function.Function; |
39 |
+ |
import java.util.function.Predicate; |
40 |
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import java.util.function.Supplier; |
41 |
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|
42 |
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import junit.framework.Test; |
86 |
|
assertTrue(f.toString().contains("[Completed normally]")); |
87 |
|
} |
88 |
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|
89 |
< |
void checkCompletedWithWrappedCFException(CompletableFuture<?> f) { |
90 |
< |
long startTime = System.nanoTime(); |
91 |
< |
long timeoutMillis = LONG_DELAY_MS; |
92 |
< |
try { |
93 |
< |
f.get(timeoutMillis, MILLISECONDS); |
94 |
< |
shouldThrow(); |
95 |
< |
} catch (ExecutionException success) { |
96 |
< |
assertTrue(success.getCause() instanceof CFException); |
97 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
98 |
< |
assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); |
99 |
< |
|
100 |
< |
try { |
101 |
< |
f.join(); |
102 |
< |
shouldThrow(); |
103 |
< |
} catch (CompletionException success) { |
104 |
< |
assertTrue(success.getCause() instanceof CFException); |
105 |
< |
} |
97 |
< |
try { |
98 |
< |
f.getNow(null); |
99 |
< |
shouldThrow(); |
100 |
< |
} catch (CompletionException success) { |
101 |
< |
assertTrue(success.getCause() instanceof CFException); |
89 |
> |
/** |
90 |
> |
* Returns the "raw" internal exceptional completion of f, |
91 |
> |
* without any additional wrapping with CompletionException. |
92 |
> |
*/ |
93 |
> |
<U> Throwable exceptionalCompletion(CompletableFuture<U> f) { |
94 |
> |
// handle (and whenComplete) can distinguish between "direct" |
95 |
> |
// and "wrapped" exceptional completion |
96 |
> |
return f.handle((U u, Throwable t) -> t).join(); |
97 |
> |
} |
98 |
> |
|
99 |
> |
void checkCompletedExceptionally(CompletableFuture<?> f, |
100 |
> |
boolean wrapped, |
101 |
> |
Consumer<Throwable> checker) { |
102 |
> |
Throwable cause = exceptionalCompletion(f); |
103 |
> |
if (wrapped) { |
104 |
> |
assertTrue(cause instanceof CompletionException); |
105 |
> |
cause = cause.getCause(); |
106 |
|
} |
107 |
< |
try { |
104 |
< |
f.get(); |
105 |
< |
shouldThrow(); |
106 |
< |
} catch (ExecutionException success) { |
107 |
< |
assertTrue(success.getCause() instanceof CFException); |
108 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
109 |
< |
assertTrue(f.isDone()); |
110 |
< |
assertFalse(f.isCancelled()); |
111 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
112 |
< |
} |
107 |
> |
checker.accept(cause); |
108 |
|
|
114 |
– |
<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f, |
115 |
– |
Throwable ex) { |
109 |
|
long startTime = System.nanoTime(); |
117 |
– |
long timeoutMillis = LONG_DELAY_MS; |
110 |
|
try { |
111 |
< |
f.get(timeoutMillis, MILLISECONDS); |
111 |
> |
f.get(LONG_DELAY_MS, MILLISECONDS); |
112 |
|
shouldThrow(); |
113 |
|
} catch (ExecutionException success) { |
114 |
< |
assertSame(ex, success.getCause()); |
114 |
> |
assertSame(cause, success.getCause()); |
115 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
116 |
< |
assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); |
116 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
117 |
|
|
118 |
|
try { |
119 |
|
f.join(); |
120 |
|
shouldThrow(); |
121 |
|
} catch (CompletionException success) { |
122 |
< |
assertSame(ex, success.getCause()); |
123 |
< |
} |
122 |
> |
assertSame(cause, success.getCause()); |
123 |
> |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
124 |
> |
|
125 |
|
try { |
126 |
|
f.getNow(null); |
127 |
|
shouldThrow(); |
128 |
|
} catch (CompletionException success) { |
129 |
< |
assertSame(ex, success.getCause()); |
130 |
< |
} |
129 |
> |
assertSame(cause, success.getCause()); |
130 |
> |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
131 |
> |
|
132 |
|
try { |
133 |
|
f.get(); |
134 |
|
shouldThrow(); |
135 |
|
} catch (ExecutionException success) { |
136 |
< |
assertSame(ex, success.getCause()); |
136 |
> |
assertSame(cause, success.getCause()); |
137 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
138 |
|
|
145 |
– |
assertTrue(f.isDone()); |
139 |
|
assertFalse(f.isCancelled()); |
140 |
+ |
assertTrue(f.isDone()); |
141 |
+ |
assertTrue(f.isCompletedExceptionally()); |
142 |
|
assertTrue(f.toString().contains("[Completed exceptionally]")); |
143 |
|
} |
144 |
|
|
145 |
< |
<U> void checkCompletedExceptionallyWithTimeout(CompletableFuture<U> f) { |
146 |
< |
long startTime = System.nanoTime(); |
147 |
< |
long timeoutMillis = LONG_DELAY_MS; |
148 |
< |
try { |
154 |
< |
f.get(timeoutMillis, MILLISECONDS); |
155 |
< |
shouldThrow(); |
156 |
< |
} catch (ExecutionException ex) { |
157 |
< |
assertTrue(ex.getCause() instanceof TimeoutException); |
158 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
159 |
< |
assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); |
160 |
< |
|
161 |
< |
try { |
162 |
< |
f.join(); |
163 |
< |
shouldThrow(); |
164 |
< |
} catch (Throwable ex) { |
165 |
< |
assertTrue(ex.getCause() instanceof TimeoutException); |
166 |
< |
} |
167 |
< |
|
168 |
< |
try { |
169 |
< |
f.getNow(null); |
170 |
< |
shouldThrow(); |
171 |
< |
} catch (Throwable ex) { |
172 |
< |
assertTrue(ex.getCause() instanceof TimeoutException); |
173 |
< |
} |
145 |
> |
void checkCompletedWithWrappedCFException(CompletableFuture<?> f) { |
146 |
> |
checkCompletedExceptionally(f, true, |
147 |
> |
(t) -> assertTrue(t instanceof CFException)); |
148 |
> |
} |
149 |
|
|
150 |
< |
try { |
151 |
< |
f.get(); |
152 |
< |
shouldThrow(); |
153 |
< |
} catch (ExecutionException ex) { |
179 |
< |
assertTrue(ex.getCause() instanceof TimeoutException); |
180 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
150 |
> |
void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) { |
151 |
> |
checkCompletedExceptionally(f, true, |
152 |
> |
(t) -> assertTrue(t instanceof CancellationException)); |
153 |
> |
} |
154 |
|
|
155 |
< |
assertTrue(f.isDone()); |
156 |
< |
assertFalse(f.isCancelled()); |
157 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
155 |
> |
void checkCompletedWithTimeoutException(CompletableFuture<?> f) { |
156 |
> |
checkCompletedExceptionally(f, false, |
157 |
> |
(t) -> assertTrue(t instanceof TimeoutException)); |
158 |
|
} |
159 |
|
|
160 |
< |
<U> void checkCompletedWithWrappedException(CompletableFuture<U> f, |
161 |
< |
Throwable ex) { |
162 |
< |
checkCompletedExceptionallyWithRootCause(f, ex); |
190 |
< |
try { |
191 |
< |
CompletableFuture<Throwable> spy = f.handle |
192 |
< |
((U u, Throwable t) -> t); |
193 |
< |
assertTrue(spy.join() instanceof CompletionException); |
194 |
< |
assertSame(ex, spy.join().getCause()); |
195 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
160 |
> |
void checkCompletedWithWrappedException(CompletableFuture<?> f, |
161 |
> |
Throwable ex) { |
162 |
> |
checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex)); |
163 |
|
} |
164 |
|
|
165 |
< |
<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) { |
166 |
< |
checkCompletedExceptionallyWithRootCause(f, ex); |
200 |
< |
try { |
201 |
< |
CompletableFuture<Throwable> spy = f.handle |
202 |
< |
((U u, Throwable t) -> t); |
203 |
< |
assertSame(ex, spy.join()); |
204 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
165 |
> |
void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) { |
166 |
> |
checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex)); |
167 |
|
} |
168 |
|
|
169 |
|
void checkCancelled(CompletableFuture<?> f) { |
170 |
|
long startTime = System.nanoTime(); |
209 |
– |
long timeoutMillis = LONG_DELAY_MS; |
171 |
|
try { |
172 |
< |
f.get(timeoutMillis, MILLISECONDS); |
172 |
> |
f.get(LONG_DELAY_MS, MILLISECONDS); |
173 |
|
shouldThrow(); |
174 |
|
} catch (CancellationException success) { |
175 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
176 |
< |
assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); |
176 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
177 |
|
|
178 |
|
try { |
179 |
|
f.join(); |
188 |
|
shouldThrow(); |
189 |
|
} catch (CancellationException success) { |
190 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
230 |
– |
assertTrue(f.isDone()); |
231 |
– |
assertTrue(f.isCompletedExceptionally()); |
232 |
– |
assertTrue(f.isCancelled()); |
233 |
– |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
234 |
– |
} |
191 |
|
|
192 |
< |
void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) { |
237 |
< |
long startTime = System.nanoTime(); |
238 |
< |
long timeoutMillis = LONG_DELAY_MS; |
239 |
< |
try { |
240 |
< |
f.get(timeoutMillis, MILLISECONDS); |
241 |
< |
shouldThrow(); |
242 |
< |
} catch (ExecutionException success) { |
243 |
< |
assertTrue(success.getCause() instanceof CancellationException); |
244 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
245 |
< |
assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); |
192 |
> |
assertTrue(exceptionalCompletion(f) instanceof CancellationException); |
193 |
|
|
247 |
– |
try { |
248 |
– |
f.join(); |
249 |
– |
shouldThrow(); |
250 |
– |
} catch (CompletionException success) { |
251 |
– |
assertTrue(success.getCause() instanceof CancellationException); |
252 |
– |
} |
253 |
– |
try { |
254 |
– |
f.getNow(null); |
255 |
– |
shouldThrow(); |
256 |
– |
} catch (CompletionException success) { |
257 |
– |
assertTrue(success.getCause() instanceof CancellationException); |
258 |
– |
} |
259 |
– |
try { |
260 |
– |
f.get(); |
261 |
– |
shouldThrow(); |
262 |
– |
} catch (ExecutionException success) { |
263 |
– |
assertTrue(success.getCause() instanceof CancellationException); |
264 |
– |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
194 |
|
assertTrue(f.isDone()); |
266 |
– |
assertFalse(f.isCancelled()); |
195 |
|
assertTrue(f.isCompletedExceptionally()); |
196 |
+ |
assertTrue(f.isCancelled()); |
197 |
|
assertTrue(f.toString().contains("[Completed exceptionally]")); |
198 |
|
} |
199 |
|
|
3071 |
|
for (int i = 0; i < k; i++) { |
3072 |
|
checkIncomplete(f); |
3073 |
|
checkIncomplete(CompletableFuture.allOf(fs)); |
3074 |
< |
if (i != k/2) { |
3074 |
> |
if (i != k / 2) { |
3075 |
|
fs[i].complete(i); |
3076 |
|
checkCompletedNormally(fs[i], i); |
3077 |
|
} else { |
3274 |
|
() -> CompletableFuture.anyOf(null, f), |
3275 |
|
|
3276 |
|
() -> f.obtrudeException(null), |
3277 |
+ |
|
3278 |
+ |
() -> CompletableFuture.delayedExecutor(1L, SECONDS, null), |
3279 |
+ |
() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()), |
3280 |
+ |
() -> CompletableFuture.delayedExecutor(1L, null), |
3281 |
+ |
|
3282 |
+ |
() -> f.orTimeout(1L, null), |
3283 |
+ |
() -> f.completeOnTimeout(42, 1L, null), |
3284 |
+ |
|
3285 |
+ |
() -> CompletableFuture.failedFuture(null), |
3286 |
+ |
() -> CompletableFuture.failedStage(null), |
3287 |
|
}; |
3288 |
|
|
3289 |
|
assertThrows(NullPointerException.class, throwingActions); |
3304 |
|
* newIncompleteFuture returns an incomplete CompletableFuture |
3305 |
|
*/ |
3306 |
|
public void testNewIncompleteFuture() { |
3307 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3308 |
+ |
{ |
3309 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3310 |
|
CompletableFuture<Integer> g = f.newIncompleteFuture(); |
3311 |
|
checkIncomplete(f); |
3312 |
|
checkIncomplete(g); |
3313 |
< |
} |
3313 |
> |
f.complete(v1); |
3314 |
> |
checkCompletedNormally(f, v1); |
3315 |
> |
checkIncomplete(g); |
3316 |
> |
g.complete(v1); |
3317 |
> |
checkCompletedNormally(g, v1); |
3318 |
> |
assertSame(g.getClass(), CompletableFuture.class); |
3319 |
> |
}} |
3320 |
|
|
3321 |
|
/** |
3322 |
|
* completedStage returns a completed CompletionStage |
3323 |
|
*/ |
3324 |
|
public void testCompletedStage() { |
3325 |
< |
AtomicInteger x = new AtomicInteger(); |
3325 |
> |
AtomicInteger x = new AtomicInteger(0); |
3326 |
|
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3327 |
|
CompletionStage<Integer> f = CompletableFuture.completedStage(1); |
3328 |
|
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3351 |
|
public void testFailedFuture() { |
3352 |
|
CFException ex = new CFException(); |
3353 |
|
CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex); |
3354 |
< |
checkCompletedExceptionallyWithRootCause(f, ex); |
3354 |
> |
checkCompletedExceptionally(f, ex); |
3355 |
|
} |
3356 |
|
|
3357 |
|
/** |
3358 |
|
* failedFuture(null) throws NPE |
3359 |
|
*/ |
3360 |
< |
public void testFailedFuture2() { |
3360 |
> |
public void testFailedFuture_null() { |
3361 |
|
try { |
3362 |
|
CompletableFuture<Integer> f = CompletableFuture.failedFuture(null); |
3363 |
|
shouldThrow(); |
3390 |
|
CFException ex = new CFException(); |
3391 |
|
f.completeExceptionally(ex); |
3392 |
|
checkCompletedExceptionally(f, ex); |
3393 |
< |
checkCompletedWithWrappedCFException(g); |
3393 |
> |
checkCompletedWithWrappedException(g, ex); |
3394 |
|
} |
3395 |
|
|
3396 |
|
/** |
3400 |
|
public void testMinimalCompletionStage() { |
3401 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3402 |
|
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3403 |
< |
AtomicInteger x = new AtomicInteger(); |
3403 |
> |
AtomicInteger x = new AtomicInteger(0); |
3404 |
|
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3405 |
|
checkIncomplete(f); |
3406 |
|
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3417 |
|
public void testMinimalCompletionStage2() { |
3418 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3419 |
|
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3420 |
< |
AtomicInteger x = new AtomicInteger(); |
3420 |
> |
AtomicInteger x = new AtomicInteger(0); |
3421 |
|
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3422 |
|
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3423 |
|
checkIncomplete(f); |
3435 |
|
public void testFailedStage() { |
3436 |
|
CFException ex = new CFException(); |
3437 |
|
CompletionStage<Integer> f = CompletableFuture.failedStage(ex); |
3438 |
< |
AtomicInteger x = new AtomicInteger(); |
3438 |
> |
AtomicInteger x = new AtomicInteger(0); |
3439 |
|
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3440 |
|
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3441 |
|
assertEquals(x.get(), 0); |
3442 |
< |
assertEquals(r.get().getCause(), ex); |
3442 |
> |
assertEquals(r.get(), ex); |
3443 |
|
} |
3444 |
|
|
3445 |
|
/** |
3446 |
|
* completeAsync completes with value of given supplier |
3447 |
|
*/ |
3448 |
|
public void testCompleteAsync() { |
3449 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3450 |
+ |
{ |
3451 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3452 |
< |
f.completeAsync(() -> 1); |
3452 |
> |
f.completeAsync(() -> v1); |
3453 |
|
f.join(); |
3454 |
< |
checkCompletedNormally(f, 1); |
3455 |
< |
} |
3454 |
> |
checkCompletedNormally(f, v1); |
3455 |
> |
}} |
3456 |
|
|
3457 |
|
/** |
3458 |
|
* completeAsync completes exceptionally if given supplier throws |
3464 |
|
try { |
3465 |
|
f.join(); |
3466 |
|
shouldThrow(); |
3467 |
< |
} catch (Exception success) {} |
3468 |
< |
checkCompletedWithWrappedCFException(f); |
3467 |
> |
} catch (CompletionException success) {} |
3468 |
> |
checkCompletedWithWrappedException(f, ex); |
3469 |
|
} |
3470 |
|
|
3471 |
|
/** |
3472 |
|
* completeAsync with given executor completes with value of given supplier |
3473 |
|
*/ |
3474 |
|
public void testCompleteAsync3() { |
3475 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3476 |
+ |
{ |
3477 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3478 |
< |
f.completeAsync(() -> 1, new ThreadExecutor()); |
3479 |
< |
f.join(); |
3480 |
< |
checkCompletedNormally(f, 1); |
3481 |
< |
} |
3478 |
> |
ThreadExecutor executor = new ThreadExecutor(); |
3479 |
> |
f.completeAsync(() -> v1, executor); |
3480 |
> |
assertSame(v1, f.join()); |
3481 |
> |
checkCompletedNormally(f, v1); |
3482 |
> |
assertEquals(1, executor.count.get()); |
3483 |
> |
}} |
3484 |
|
|
3485 |
|
/** |
3486 |
|
* completeAsync with given executor completes exceptionally if |
3489 |
|
public void testCompleteAsync4() { |
3490 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3491 |
|
CFException ex = new CFException(); |
3492 |
< |
f.completeAsync(() -> {if (true) throw ex; return 1;}, new ThreadExecutor()); |
3492 |
> |
ThreadExecutor executor = new ThreadExecutor(); |
3493 |
> |
f.completeAsync(() -> {if (true) throw ex; return 1;}, executor); |
3494 |
|
try { |
3495 |
|
f.join(); |
3496 |
|
shouldThrow(); |
3497 |
< |
} catch (Exception success) {} |
3498 |
< |
checkCompletedWithWrappedCFException(f); |
3497 |
> |
} catch (CompletionException success) {} |
3498 |
> |
checkCompletedWithWrappedException(f, ex); |
3499 |
> |
assertEquals(1, executor.count.get()); |
3500 |
|
} |
3501 |
|
|
3502 |
|
/** |
3503 |
|
* orTimeout completes with TimeoutException if not complete |
3504 |
|
*/ |
3505 |
< |
public void testOrTimeout() { |
3505 |
> |
public void testOrTimeout_timesOut() { |
3506 |
> |
long timeoutMillis = timeoutMillis(); |
3507 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3508 |
< |
f.orTimeout(SHORT_DELAY_MS, MILLISECONDS); |
3509 |
< |
checkCompletedExceptionallyWithTimeout(f); |
3508 |
> |
long startTime = System.nanoTime(); |
3509 |
> |
f.orTimeout(timeoutMillis, MILLISECONDS); |
3510 |
> |
checkCompletedWithTimeoutException(f); |
3511 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
3512 |
|
} |
3513 |
|
|
3514 |
|
/** |
3515 |
|
* orTimeout completes normally if completed before timeout |
3516 |
|
*/ |
3517 |
< |
public void testOrTimeout2() { |
3517 |
> |
public void testOrTimeout_completed() { |
3518 |
> |
for (Integer v1 : new Integer[] { 1, null }) |
3519 |
> |
{ |
3520 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3521 |
< |
f.complete(1); |
3522 |
< |
f.orTimeout(SHORT_DELAY_MS, MILLISECONDS); |
3523 |
< |
checkCompletedNormally(f, 1); |
3524 |
< |
} |
3521 |
> |
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3522 |
> |
long startTime = System.nanoTime(); |
3523 |
> |
f.complete(v1); |
3524 |
> |
f.orTimeout(LONG_DELAY_MS, MILLISECONDS); |
3525 |
> |
g.orTimeout(LONG_DELAY_MS, MILLISECONDS); |
3526 |
> |
g.complete(v1); |
3527 |
> |
checkCompletedNormally(f, v1); |
3528 |
> |
checkCompletedNormally(g, v1); |
3529 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
3530 |
> |
}} |
3531 |
|
|
3532 |
|
/** |
3533 |
|
* completeOnTimeout completes with given value if not complete |
3534 |
|
*/ |
3535 |
< |
public void testCompleteOnTimeout() { |
3535 |
> |
public void testCompleteOnTimeout_timesOut() { |
3536 |
> |
testInParallel(() -> testCompleteOnTimeout_timesOut(42), |
3537 |
> |
() -> testCompleteOnTimeout_timesOut(null)); |
3538 |
> |
} |
3539 |
> |
|
3540 |
> |
public void testCompleteOnTimeout_timesOut(Integer v) { |
3541 |
> |
long timeoutMillis = timeoutMillis(); |
3542 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3543 |
< |
f.completeOnTimeout(-1, SHORT_DELAY_MS, MILLISECONDS); |
3544 |
< |
f.join(); |
3545 |
< |
checkCompletedNormally(f, -1); |
3543 |
> |
long startTime = System.nanoTime(); |
3544 |
> |
f.completeOnTimeout(v, timeoutMillis, MILLISECONDS); |
3545 |
> |
assertSame(v, f.join()); |
3546 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
3547 |
> |
f.complete(99); // should have no effect |
3548 |
> |
checkCompletedNormally(f, v); |
3549 |
|
} |
3550 |
|
|
3551 |
|
/** |
3552 |
|
* completeOnTimeout has no effect if completed within timeout |
3553 |
|
*/ |
3554 |
< |
public void testCompleteOnTimeout2() { |
3554 |
> |
public void testCompleteOnTimeout_completed() { |
3555 |
> |
for (Integer v1 : new Integer[] { 1, null }) |
3556 |
> |
{ |
3557 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3558 |
< |
f.complete(1); |
3559 |
< |
f.completeOnTimeout(-1, SHORT_DELAY_MS, MILLISECONDS); |
3560 |
< |
checkCompletedNormally(f, 1); |
3561 |
< |
} |
3558 |
> |
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3559 |
> |
long startTime = System.nanoTime(); |
3560 |
> |
f.complete(v1); |
3561 |
> |
f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS); |
3562 |
> |
g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS); |
3563 |
> |
g.complete(v1); |
3564 |
> |
checkCompletedNormally(f, v1); |
3565 |
> |
checkCompletedNormally(g, v1); |
3566 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
3567 |
> |
}} |
3568 |
|
|
3569 |
|
/** |
3570 |
|
* delayedExecutor returns an executor that delays submission |
3571 |
|
*/ |
3572 |
|
public void testDelayedExecutor() { |
3573 |
< |
long timeoutMillis = SMALL_DELAY_MS; |
3574 |
< |
Executor d = CompletableFuture.delayedExecutor(timeoutMillis, |
3575 |
< |
MILLISECONDS); |
3573 |
> |
testInParallel(() -> testDelayedExecutor(null, null), |
3574 |
> |
() -> testDelayedExecutor(null, 1), |
3575 |
> |
() -> testDelayedExecutor(new ThreadExecutor(), 1), |
3576 |
> |
() -> testDelayedExecutor(new ThreadExecutor(), 1)); |
3577 |
> |
} |
3578 |
> |
|
3579 |
> |
public void testDelayedExecutor(Executor executor, Integer v) throws Exception { |
3580 |
> |
long timeoutMillis = timeoutMillis(); |
3581 |
> |
// Use an "unreasonably long" long timeout to catch lingering threads |
3582 |
> |
long longTimeoutMillis = 1000 * 60 * 60 * 24; |
3583 |
> |
final Executor delayer, longDelayer; |
3584 |
> |
if (executor == null) { |
3585 |
> |
delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS); |
3586 |
> |
longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS); |
3587 |
> |
} else { |
3588 |
> |
delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor); |
3589 |
> |
longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor); |
3590 |
> |
} |
3591 |
|
long startTime = System.nanoTime(); |
3592 |
< |
CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d); |
3593 |
< |
assertNull(f.getNow(null)); |
3594 |
< |
try { |
3595 |
< |
assertEquals(1, (int) f.get(LONG_DELAY_MS, MILLISECONDS)); |
3596 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
3597 |
< |
assertTrue(millisElapsedSince(startTime) > timeoutMillis/2); |
3598 |
< |
checkCompletedNormally(f, 1); |
3599 |
< |
} |
3592 |
> |
CompletableFuture<Integer> f = |
3593 |
> |
CompletableFuture.supplyAsync(() -> v, delayer); |
3594 |
> |
CompletableFuture<Integer> g = |
3595 |
> |
CompletableFuture.supplyAsync(() -> v, longDelayer); |
3596 |
> |
|
3597 |
> |
assertNull(g.getNow(null)); |
3598 |
> |
|
3599 |
> |
assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS)); |
3600 |
> |
long millisElapsed = millisElapsedSince(startTime); |
3601 |
> |
assertTrue(millisElapsed >= timeoutMillis); |
3602 |
> |
assertTrue(millisElapsed < LONG_DELAY_MS / 2); |
3603 |
|
|
3604 |
< |
/** |
3605 |
< |
* delayedExecutor for a given executor returns an executor that |
3606 |
< |
* delays submission |
3607 |
< |
*/ |
3607 |
< |
public void testDelayedExecutor2() { |
3608 |
< |
long timeoutMillis = SMALL_DELAY_MS; |
3609 |
< |
Executor d = CompletableFuture.delayedExecutor(timeoutMillis, |
3610 |
< |
MILLISECONDS, |
3611 |
< |
new ThreadExecutor()); |
3612 |
< |
long startTime = System.nanoTime(); |
3613 |
< |
CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d); |
3614 |
< |
assertNull(f.getNow(null)); |
3615 |
< |
try { |
3616 |
< |
assertEquals(1, (int) f.get(LONG_DELAY_MS, MILLISECONDS)); |
3617 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
3618 |
< |
assertTrue(millisElapsedSince(startTime) > timeoutMillis/2); |
3619 |
< |
checkCompletedNormally(f, 1); |
3604 |
> |
checkCompletedNormally(f, v); |
3605 |
> |
|
3606 |
> |
checkIncomplete(g); |
3607 |
> |
assertTrue(g.cancel(true)); |
3608 |
|
} |
3609 |
|
|
3610 |
|
//--- tests of implementation details; not part of official tck --- |
3697 |
|
} |
3698 |
|
}} |
3699 |
|
|
3700 |
+ |
/** |
3701 |
+ |
* Minimal completion stages throw UOE for all non-CompletionStage methods |
3702 |
+ |
*/ |
3703 |
+ |
public void testMinimalCompletionStage_minimality() { |
3704 |
+ |
if (!testImplementationDetails) return; |
3705 |
+ |
Function<Method, String> toSignature = |
3706 |
+ |
(method) -> method.getName() + Arrays.toString(method.getParameterTypes()); |
3707 |
+ |
Predicate<Method> isNotStatic = |
3708 |
+ |
(method) -> (method.getModifiers() & Modifier.STATIC) == 0; |
3709 |
+ |
List<Method> minimalMethods = |
3710 |
+ |
Stream.of(Object.class, CompletionStage.class) |
3711 |
+ |
.map((klazz) -> Stream.of(klazz.getMethods())) |
3712 |
+ |
.reduce(Stream::concat) |
3713 |
+ |
.orElseGet(Stream::empty) |
3714 |
+ |
.filter(isNotStatic) |
3715 |
+ |
.collect(Collectors.toList()); |
3716 |
+ |
// Methods from CompletableFuture permitted NOT to throw UOE |
3717 |
+ |
String[] signatureWhitelist = { |
3718 |
+ |
"newIncompleteFuture[]", |
3719 |
+ |
"defaultExecutor[]", |
3720 |
+ |
"minimalCompletionStage[]", |
3721 |
+ |
"copy[]", |
3722 |
+ |
}; |
3723 |
+ |
Set<String> permittedMethodSignatures = |
3724 |
+ |
Stream.concat(minimalMethods.stream().map(toSignature), |
3725 |
+ |
Stream.of(signatureWhitelist)) |
3726 |
+ |
.collect(Collectors.toSet()); |
3727 |
+ |
List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods()) |
3728 |
+ |
.filter(isNotStatic) |
3729 |
+ |
.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method))) |
3730 |
+ |
.collect(Collectors.toList()); |
3731 |
+ |
|
3732 |
+ |
CompletionStage<Integer> minimalStage = |
3733 |
+ |
new CompletableFuture<Integer>().minimalCompletionStage(); |
3734 |
+ |
|
3735 |
+ |
List<Method> bugs = new ArrayList<>(); |
3736 |
+ |
for (Method method : allMethods) { |
3737 |
+ |
Class<?>[] parameterTypes = method.getParameterTypes(); |
3738 |
+ |
Object[] args = new Object[parameterTypes.length]; |
3739 |
+ |
// Manufacture boxed primitives for primitive params |
3740 |
+ |
for (int i = 0; i < args.length; i++) { |
3741 |
+ |
Class<?> type = parameterTypes[i]; |
3742 |
+ |
if (parameterTypes[i] == boolean.class) |
3743 |
+ |
args[i] = false; |
3744 |
+ |
else if (parameterTypes[i] == int.class) |
3745 |
+ |
args[i] = 0; |
3746 |
+ |
else if (parameterTypes[i] == long.class) |
3747 |
+ |
args[i] = 0L; |
3748 |
+ |
} |
3749 |
+ |
try { |
3750 |
+ |
method.invoke(minimalStage, args); |
3751 |
+ |
bugs.add(method); |
3752 |
+ |
} |
3753 |
+ |
catch (java.lang.reflect.InvocationTargetException expected) { |
3754 |
+ |
if (! (expected.getCause() instanceof UnsupportedOperationException)) { |
3755 |
+ |
bugs.add(method); |
3756 |
+ |
// expected.getCause().printStackTrace(); |
3757 |
+ |
} |
3758 |
+ |
} |
3759 |
+ |
catch (ReflectiveOperationException bad) { throw new Error(bad); } |
3760 |
+ |
} |
3761 |
+ |
if (!bugs.isEmpty()) |
3762 |
+ |
throw new Error("Methods did not throw UOE: " + bugs.toString()); |
3763 |
+ |
} |
3764 |
+ |
|
3765 |
+ |
// static <U> U join(CompletionStage<U> stage) { |
3766 |
+ |
// CompletableFuture<U> f = new CompletableFuture<>(); |
3767 |
+ |
// stage.whenComplete((v, ex) -> { |
3768 |
+ |
// if (ex != null) f.completeExceptionally(ex); else f.complete(v); |
3769 |
+ |
// }); |
3770 |
+ |
// return f.join(); |
3771 |
+ |
// } |
3772 |
+ |
|
3773 |
+ |
// static <U> boolean isDone(CompletionStage<U> stage) { |
3774 |
+ |
// CompletableFuture<U> f = new CompletableFuture<>(); |
3775 |
+ |
// stage.whenComplete((v, ex) -> { |
3776 |
+ |
// if (ex != null) f.completeExceptionally(ex); else f.complete(v); |
3777 |
+ |
// }); |
3778 |
+ |
// return f.isDone(); |
3779 |
+ |
// } |
3780 |
+ |
|
3781 |
+ |
// static <U> U join2(CompletionStage<U> stage) { |
3782 |
+ |
// return stage.toCompletableFuture().copy().join(); |
3783 |
+ |
// } |
3784 |
+ |
|
3785 |
+ |
// static <U> boolean isDone2(CompletionStage<U> stage) { |
3786 |
+ |
// return stage.toCompletableFuture().copy().isDone(); |
3787 |
+ |
// } |
3788 |
+ |
|
3789 |
|
} |