5 |
|
* http://creativecommons.org/publicdomain/zero/1.0/ |
6 |
|
*/ |
7 |
|
|
8 |
< |
import junit.framework.*; |
8 |
> |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
9 |
> |
import static java.util.concurrent.TimeUnit.SECONDS; |
10 |
> |
import static java.util.concurrent.CompletableFuture.completedFuture; |
11 |
> |
import static java.util.concurrent.CompletableFuture.failedFuture; |
12 |
> |
|
13 |
> |
import java.lang.reflect.Method; |
14 |
> |
import java.lang.reflect.Modifier; |
15 |
> |
|
16 |
> |
import java.util.stream.Collectors; |
17 |
> |
import java.util.stream.Stream; |
18 |
> |
|
19 |
> |
import java.util.ArrayList; |
20 |
> |
import java.util.Arrays; |
21 |
> |
import java.util.List; |
22 |
> |
import java.util.Objects; |
23 |
> |
import java.util.Set; |
24 |
|
import java.util.concurrent.Callable; |
10 |
– |
import java.util.concurrent.Executor; |
25 |
|
import java.util.concurrent.CancellationException; |
12 |
– |
import java.util.concurrent.ExecutionException; |
26 |
|
import java.util.concurrent.CompletableFuture; |
27 |
|
import java.util.concurrent.CompletionException; |
28 |
|
import java.util.concurrent.CompletionStage; |
29 |
+ |
import java.util.concurrent.ExecutionException; |
30 |
+ |
import java.util.concurrent.Executor; |
31 |
|
import java.util.concurrent.ForkJoinPool; |
32 |
|
import java.util.concurrent.ForkJoinTask; |
33 |
+ |
import java.util.concurrent.RejectedExecutionException; |
34 |
|
import java.util.concurrent.TimeoutException; |
35 |
|
import java.util.concurrent.atomic.AtomicInteger; |
36 |
< |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
21 |
< |
import static java.util.concurrent.TimeUnit.SECONDS; |
22 |
< |
import java.util.*; |
23 |
< |
import java.util.function.Supplier; |
24 |
< |
import java.util.function.Consumer; |
36 |
> |
import java.util.concurrent.atomic.AtomicReference; |
37 |
|
import java.util.function.BiConsumer; |
26 |
– |
import java.util.function.Function; |
38 |
|
import java.util.function.BiFunction; |
39 |
+ |
import java.util.function.Consumer; |
40 |
+ |
import java.util.function.Function; |
41 |
+ |
import java.util.function.Predicate; |
42 |
+ |
import java.util.function.Supplier; |
43 |
+ |
|
44 |
+ |
import junit.framework.Test; |
45 |
+ |
import junit.framework.TestSuite; |
46 |
|
|
47 |
|
public class CompletableFutureTest extends JSR166TestCase { |
48 |
|
|
49 |
|
public static void main(String[] args) { |
50 |
< |
junit.textui.TestRunner.run(suite()); |
50 |
> |
main(suite(), args); |
51 |
|
} |
52 |
|
public static Test suite() { |
53 |
|
return new TestSuite(CompletableFutureTest.class); |
58 |
|
void checkIncomplete(CompletableFuture<?> f) { |
59 |
|
assertFalse(f.isDone()); |
60 |
|
assertFalse(f.isCancelled()); |
61 |
< |
assertTrue(f.toString().contains("[Not completed]")); |
61 |
> |
assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]")); |
62 |
> |
|
63 |
> |
Object result = null; |
64 |
|
try { |
65 |
< |
assertNull(f.getNow(null)); |
65 |
> |
result = f.getNow(null); |
66 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
67 |
+ |
assertNull(result); |
68 |
+ |
|
69 |
|
try { |
70 |
< |
f.get(0L, SECONDS); |
70 |
> |
f.get(randomExpiredTimeout(), randomTimeUnit()); |
71 |
|
shouldThrow(); |
72 |
|
} |
73 |
|
catch (TimeoutException success) {} |
74 |
|
catch (Throwable fail) { threadUnexpectedException(fail); } |
75 |
|
} |
76 |
|
|
77 |
< |
<T> void checkCompletedNormally(CompletableFuture<T> f, T value) { |
78 |
< |
checkTimedGet(f, value); |
77 |
> |
<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) { |
78 |
> |
checkTimedGet(f, expectedValue); |
79 |
|
|
80 |
+ |
assertEquals(expectedValue, f.join()); |
81 |
+ |
assertEquals(expectedValue, f.getNow(null)); |
82 |
+ |
|
83 |
+ |
T result = null; |
84 |
|
try { |
85 |
< |
assertEquals(value, f.join()); |
60 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
61 |
< |
try { |
62 |
< |
assertEquals(value, f.getNow(null)); |
63 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
64 |
< |
try { |
65 |
< |
assertEquals(value, f.get()); |
85 |
> |
result = f.get(); |
86 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
87 |
+ |
assertEquals(expectedValue, result); |
88 |
+ |
|
89 |
|
assertTrue(f.isDone()); |
90 |
|
assertFalse(f.isCancelled()); |
91 |
|
assertFalse(f.isCompletedExceptionally()); |
92 |
< |
assertTrue(f.toString().contains("[Completed normally]")); |
92 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]")); |
93 |
|
} |
94 |
|
|
95 |
< |
void checkCompletedWithWrappedCFException(CompletableFuture<?> f) { |
96 |
< |
long startTime = System.nanoTime(); |
97 |
< |
long timeoutMillis = LONG_DELAY_MS; |
98 |
< |
try { |
99 |
< |
f.get(timeoutMillis, MILLISECONDS); |
100 |
< |
shouldThrow(); |
101 |
< |
} catch (ExecutionException success) { |
102 |
< |
assertTrue(success.getCause() instanceof CFException); |
103 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
82 |
< |
assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); |
95 |
> |
/** |
96 |
> |
* Returns the "raw" internal exceptional completion of f, |
97 |
> |
* without any additional wrapping with CompletionException. |
98 |
> |
*/ |
99 |
> |
Throwable exceptionalCompletion(CompletableFuture<?> f) { |
100 |
> |
// handle (and whenComplete and exceptionally) can distinguish |
101 |
> |
// between "direct" and "wrapped" exceptional completion |
102 |
> |
return f.handle((u, t) -> t).join(); |
103 |
> |
} |
104 |
|
|
105 |
< |
try { |
106 |
< |
f.join(); |
107 |
< |
shouldThrow(); |
108 |
< |
} catch (CompletionException success) { |
109 |
< |
assertTrue(success.getCause() instanceof CFException); |
110 |
< |
} |
111 |
< |
try { |
91 |
< |
f.getNow(null); |
92 |
< |
shouldThrow(); |
93 |
< |
} catch (CompletionException success) { |
94 |
< |
assertTrue(success.getCause() instanceof CFException); |
105 |
> |
void checkCompletedExceptionally(CompletableFuture<?> f, |
106 |
> |
boolean wrapped, |
107 |
> |
Consumer<Throwable> checker) { |
108 |
> |
Throwable cause = exceptionalCompletion(f); |
109 |
> |
if (wrapped) { |
110 |
> |
assertTrue(cause instanceof CompletionException); |
111 |
> |
cause = cause.getCause(); |
112 |
|
} |
113 |
< |
try { |
97 |
< |
f.get(); |
98 |
< |
shouldThrow(); |
99 |
< |
} catch (ExecutionException success) { |
100 |
< |
assertTrue(success.getCause() instanceof CFException); |
101 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
102 |
< |
assertTrue(f.isDone()); |
103 |
< |
assertFalse(f.isCancelled()); |
104 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
105 |
< |
} |
113 |
> |
checker.accept(cause); |
114 |
|
|
107 |
– |
<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f, |
108 |
– |
Throwable ex) { |
115 |
|
long startTime = System.nanoTime(); |
110 |
– |
long timeoutMillis = LONG_DELAY_MS; |
116 |
|
try { |
117 |
< |
f.get(timeoutMillis, MILLISECONDS); |
117 |
> |
f.get(LONG_DELAY_MS, MILLISECONDS); |
118 |
|
shouldThrow(); |
119 |
|
} catch (ExecutionException success) { |
120 |
< |
assertSame(ex, success.getCause()); |
120 |
> |
assertSame(cause, success.getCause()); |
121 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
122 |
< |
assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); |
122 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
123 |
|
|
124 |
|
try { |
125 |
|
f.join(); |
126 |
|
shouldThrow(); |
127 |
|
} catch (CompletionException success) { |
128 |
< |
assertSame(ex, success.getCause()); |
129 |
< |
} |
128 |
> |
assertSame(cause, success.getCause()); |
129 |
> |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
130 |
> |
|
131 |
|
try { |
132 |
|
f.getNow(null); |
133 |
|
shouldThrow(); |
134 |
|
} catch (CompletionException success) { |
135 |
< |
assertSame(ex, success.getCause()); |
136 |
< |
} |
135 |
> |
assertSame(cause, success.getCause()); |
136 |
> |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
137 |
> |
|
138 |
|
try { |
139 |
|
f.get(); |
140 |
|
shouldThrow(); |
141 |
|
} catch (ExecutionException success) { |
142 |
< |
assertSame(ex, success.getCause()); |
142 |
> |
assertSame(cause, success.getCause()); |
143 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
144 |
|
|
138 |
– |
assertTrue(f.isDone()); |
145 |
|
assertFalse(f.isCancelled()); |
146 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
146 |
> |
assertTrue(f.isDone()); |
147 |
> |
assertTrue(f.isCompletedExceptionally()); |
148 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
149 |
|
} |
150 |
|
|
151 |
< |
<U> void checkCompletedWithWrappedException(CompletableFuture<U> f, |
152 |
< |
Throwable ex) { |
153 |
< |
checkCompletedExceptionallyWithRootCause(f, ex); |
146 |
< |
try { |
147 |
< |
CompletableFuture<Throwable> spy = f.handle |
148 |
< |
((U u, Throwable t) -> t); |
149 |
< |
assertTrue(spy.join() instanceof CompletionException); |
150 |
< |
assertSame(ex, spy.join().getCause()); |
151 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
151 |
> |
void checkCompletedWithWrappedCFException(CompletableFuture<?> f) { |
152 |
> |
checkCompletedExceptionally(f, true, |
153 |
> |
t -> assertTrue(t instanceof CFException)); |
154 |
|
} |
155 |
|
|
156 |
< |
<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) { |
157 |
< |
checkCompletedExceptionallyWithRootCause(f, ex); |
158 |
< |
try { |
159 |
< |
CompletableFuture<Throwable> spy = f.handle |
160 |
< |
((U u, Throwable t) -> t); |
161 |
< |
assertSame(ex, spy.join()); |
162 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
156 |
> |
void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) { |
157 |
> |
checkCompletedExceptionally(f, true, |
158 |
> |
t -> assertTrue(t instanceof CancellationException)); |
159 |
> |
} |
160 |
> |
|
161 |
> |
void checkCompletedWithTimeoutException(CompletableFuture<?> f) { |
162 |
> |
checkCompletedExceptionally(f, false, |
163 |
> |
t -> assertTrue(t instanceof TimeoutException)); |
164 |
> |
} |
165 |
> |
|
166 |
> |
void checkCompletedWithWrappedException(CompletableFuture<?> f, |
167 |
> |
Throwable ex) { |
168 |
> |
checkCompletedExceptionally(f, true, t -> assertSame(t, ex)); |
169 |
> |
} |
170 |
> |
|
171 |
> |
void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) { |
172 |
> |
checkCompletedExceptionally(f, false, t -> assertSame(t, ex)); |
173 |
|
} |
174 |
|
|
175 |
|
void checkCancelled(CompletableFuture<?> f) { |
176 |
|
long startTime = System.nanoTime(); |
165 |
– |
long timeoutMillis = LONG_DELAY_MS; |
177 |
|
try { |
178 |
< |
f.get(timeoutMillis, MILLISECONDS); |
178 |
> |
f.get(LONG_DELAY_MS, MILLISECONDS); |
179 |
|
shouldThrow(); |
180 |
|
} catch (CancellationException success) { |
181 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
182 |
< |
assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); |
182 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
183 |
|
|
184 |
|
try { |
185 |
|
f.join(); |
194 |
|
shouldThrow(); |
195 |
|
} catch (CancellationException success) { |
196 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
186 |
– |
assertTrue(f.isDone()); |
187 |
– |
assertTrue(f.isCompletedExceptionally()); |
188 |
– |
assertTrue(f.isCancelled()); |
189 |
– |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
190 |
– |
} |
197 |
|
|
198 |
< |
void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) { |
193 |
< |
long startTime = System.nanoTime(); |
194 |
< |
long timeoutMillis = LONG_DELAY_MS; |
195 |
< |
try { |
196 |
< |
f.get(timeoutMillis, MILLISECONDS); |
197 |
< |
shouldThrow(); |
198 |
< |
} catch (ExecutionException success) { |
199 |
< |
assertTrue(success.getCause() instanceof CancellationException); |
200 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
201 |
< |
assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); |
198 |
> |
assertTrue(exceptionalCompletion(f) instanceof CancellationException); |
199 |
|
|
203 |
– |
try { |
204 |
– |
f.join(); |
205 |
– |
shouldThrow(); |
206 |
– |
} catch (CompletionException success) { |
207 |
– |
assertTrue(success.getCause() instanceof CancellationException); |
208 |
– |
} |
209 |
– |
try { |
210 |
– |
f.getNow(null); |
211 |
– |
shouldThrow(); |
212 |
– |
} catch (CompletionException success) { |
213 |
– |
assertTrue(success.getCause() instanceof CancellationException); |
214 |
– |
} |
215 |
– |
try { |
216 |
– |
f.get(); |
217 |
– |
shouldThrow(); |
218 |
– |
} catch (ExecutionException success) { |
219 |
– |
assertTrue(success.getCause() instanceof CancellationException); |
220 |
– |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
200 |
|
assertTrue(f.isDone()); |
222 |
– |
assertFalse(f.isCancelled()); |
201 |
|
assertTrue(f.isCompletedExceptionally()); |
202 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
202 |
> |
assertTrue(f.isCancelled()); |
203 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
204 |
|
} |
205 |
|
|
206 |
|
/** |
247 |
|
{ |
248 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
249 |
|
checkIncomplete(f); |
250 |
< |
assertTrue(f.cancel(true)); |
251 |
< |
assertTrue(f.cancel(true)); |
250 |
> |
assertTrue(f.cancel(mayInterruptIfRunning)); |
251 |
> |
assertTrue(f.cancel(mayInterruptIfRunning)); |
252 |
> |
assertTrue(f.cancel(!mayInterruptIfRunning)); |
253 |
|
checkCancelled(f); |
254 |
|
}} |
255 |
|
|
299 |
|
} |
300 |
|
|
301 |
|
f = new CompletableFuture<>(); |
302 |
< |
f.completeExceptionally(ex = new CFException()); |
302 |
> |
f.completeExceptionally(new CFException()); |
303 |
|
f.obtrudeValue(v1); |
304 |
|
checkCompletedNormally(f, v1); |
305 |
|
f.obtrudeException(ex = new CFException()); |
336 |
|
/** |
337 |
|
* toString indicates current completion state |
338 |
|
*/ |
339 |
< |
public void testToString() { |
340 |
< |
CompletableFuture<String> f; |
341 |
< |
|
342 |
< |
f = new CompletableFuture<String>(); |
343 |
< |
assertTrue(f.toString().contains("[Not completed]")); |
339 |
> |
public void testToString_incomplete() { |
340 |
> |
CompletableFuture<String> f = new CompletableFuture<>(); |
341 |
> |
assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]")); |
342 |
> |
if (testImplementationDetails) |
343 |
> |
assertEquals(identityString(f) + "[Not completed]", |
344 |
> |
f.toString()); |
345 |
> |
} |
346 |
|
|
347 |
+ |
public void testToString_normal() { |
348 |
+ |
CompletableFuture<String> f = new CompletableFuture<>(); |
349 |
|
assertTrue(f.complete("foo")); |
350 |
< |
assertTrue(f.toString().contains("[Completed normally]")); |
350 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]")); |
351 |
> |
if (testImplementationDetails) |
352 |
> |
assertEquals(identityString(f) + "[Completed normally]", |
353 |
> |
f.toString()); |
354 |
> |
} |
355 |
|
|
356 |
< |
f = new CompletableFuture<String>(); |
356 |
> |
public void testToString_exception() { |
357 |
> |
CompletableFuture<String> f = new CompletableFuture<>(); |
358 |
|
assertTrue(f.completeExceptionally(new IndexOutOfBoundsException())); |
359 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
359 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
360 |
> |
if (testImplementationDetails) |
361 |
> |
assertTrue(f.toString().startsWith( |
362 |
> |
identityString(f) + "[Completed exceptionally: ")); |
363 |
> |
} |
364 |
|
|
365 |
+ |
public void testToString_cancelled() { |
366 |
|
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { |
367 |
< |
f = new CompletableFuture<String>(); |
367 |
> |
CompletableFuture<String> f = new CompletableFuture<>(); |
368 |
|
assertTrue(f.cancel(mayInterruptIfRunning)); |
369 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
369 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
370 |
> |
if (testImplementationDetails) |
371 |
> |
assertTrue(f.toString().startsWith( |
372 |
> |
identityString(f) + "[Completed exceptionally: ")); |
373 |
|
} |
374 |
|
} |
375 |
|
|
381 |
|
checkCompletedNormally(f, "test"); |
382 |
|
} |
383 |
|
|
384 |
< |
abstract class CheckedAction { |
384 |
> |
abstract static class CheckedAction { |
385 |
|
int invocationCount = 0; |
386 |
|
final ExecutionMode m; |
387 |
|
CheckedAction(ExecutionMode m) { this.m = m; } |
393 |
|
void assertInvoked() { assertEquals(1, invocationCount); } |
394 |
|
} |
395 |
|
|
396 |
< |
abstract class CheckedIntegerAction extends CheckedAction { |
396 |
> |
abstract static class CheckedIntegerAction extends CheckedAction { |
397 |
|
Integer value; |
398 |
|
CheckedIntegerAction(ExecutionMode m) { super(m); } |
399 |
|
void assertValue(Integer expected) { |
402 |
|
} |
403 |
|
} |
404 |
|
|
405 |
< |
class IntegerSupplier extends CheckedAction |
405 |
> |
static class IntegerSupplier extends CheckedAction |
406 |
|
implements Supplier<Integer> |
407 |
|
{ |
408 |
|
final Integer value; |
421 |
|
return (x == null) ? null : x + 1; |
422 |
|
} |
423 |
|
|
424 |
< |
class NoopConsumer extends CheckedIntegerAction |
424 |
> |
static class NoopConsumer extends CheckedIntegerAction |
425 |
|
implements Consumer<Integer> |
426 |
|
{ |
427 |
|
NoopConsumer(ExecutionMode m) { super(m); } |
431 |
|
} |
432 |
|
} |
433 |
|
|
434 |
< |
class IncFunction extends CheckedIntegerAction |
434 |
> |
static class IncFunction extends CheckedIntegerAction |
435 |
|
implements Function<Integer,Integer> |
436 |
|
{ |
437 |
|
IncFunction(ExecutionMode m) { super(m); } |
449 |
|
- ((y == null) ? 99 : y.intValue()); |
450 |
|
} |
451 |
|
|
452 |
< |
class SubtractAction extends CheckedIntegerAction |
452 |
> |
static class SubtractAction extends CheckedIntegerAction |
453 |
|
implements BiConsumer<Integer, Integer> |
454 |
|
{ |
455 |
|
SubtractAction(ExecutionMode m) { super(m); } |
459 |
|
} |
460 |
|
} |
461 |
|
|
462 |
< |
class SubtractFunction extends CheckedIntegerAction |
462 |
> |
static class SubtractFunction extends CheckedIntegerAction |
463 |
|
implements BiFunction<Integer, Integer, Integer> |
464 |
|
{ |
465 |
|
SubtractFunction(ExecutionMode m) { super(m); } |
469 |
|
} |
470 |
|
} |
471 |
|
|
472 |
< |
class Noop extends CheckedAction implements Runnable { |
472 |
> |
static class Noop extends CheckedAction implements Runnable { |
473 |
|
Noop(ExecutionMode m) { super(m); } |
474 |
|
public void run() { |
475 |
|
invoked(); |
476 |
|
} |
477 |
|
} |
478 |
|
|
479 |
< |
class FailingSupplier extends CheckedAction |
479 |
> |
static class FailingSupplier extends CheckedAction |
480 |
|
implements Supplier<Integer> |
481 |
|
{ |
482 |
< |
FailingSupplier(ExecutionMode m) { super(m); } |
482 |
> |
final CFException ex; |
483 |
> |
FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); } |
484 |
|
public Integer get() { |
485 |
|
invoked(); |
486 |
< |
throw new CFException(); |
486 |
> |
throw ex; |
487 |
|
} |
488 |
|
} |
489 |
|
|
490 |
< |
class FailingConsumer extends CheckedIntegerAction |
490 |
> |
static class FailingConsumer extends CheckedIntegerAction |
491 |
|
implements Consumer<Integer> |
492 |
|
{ |
493 |
< |
FailingConsumer(ExecutionMode m) { super(m); } |
493 |
> |
final CFException ex; |
494 |
> |
FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); } |
495 |
|
public void accept(Integer x) { |
496 |
|
invoked(); |
497 |
|
value = x; |
498 |
< |
throw new CFException(); |
498 |
> |
throw ex; |
499 |
|
} |
500 |
|
} |
501 |
|
|
502 |
< |
class FailingBiConsumer extends CheckedIntegerAction |
502 |
> |
static class FailingBiConsumer extends CheckedIntegerAction |
503 |
|
implements BiConsumer<Integer, Integer> |
504 |
|
{ |
505 |
< |
FailingBiConsumer(ExecutionMode m) { super(m); } |
505 |
> |
final CFException ex; |
506 |
> |
FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); } |
507 |
|
public void accept(Integer x, Integer y) { |
508 |
|
invoked(); |
509 |
|
value = subtract(x, y); |
510 |
< |
throw new CFException(); |
510 |
> |
throw ex; |
511 |
|
} |
512 |
|
} |
513 |
|
|
514 |
< |
class FailingFunction extends CheckedIntegerAction |
514 |
> |
static class FailingFunction extends CheckedIntegerAction |
515 |
|
implements Function<Integer, Integer> |
516 |
|
{ |
517 |
< |
FailingFunction(ExecutionMode m) { super(m); } |
517 |
> |
final CFException ex; |
518 |
> |
FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); } |
519 |
|
public Integer apply(Integer x) { |
520 |
|
invoked(); |
521 |
|
value = x; |
522 |
< |
throw new CFException(); |
522 |
> |
throw ex; |
523 |
|
} |
524 |
|
} |
525 |
|
|
526 |
< |
class FailingBiFunction extends CheckedIntegerAction |
526 |
> |
static class FailingBiFunction extends CheckedIntegerAction |
527 |
|
implements BiFunction<Integer, Integer, Integer> |
528 |
|
{ |
529 |
< |
FailingBiFunction(ExecutionMode m) { super(m); } |
529 |
> |
final CFException ex; |
530 |
> |
FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); } |
531 |
|
public Integer apply(Integer x, Integer y) { |
532 |
|
invoked(); |
533 |
|
value = subtract(x, y); |
534 |
< |
throw new CFException(); |
534 |
> |
throw ex; |
535 |
|
} |
536 |
|
} |
537 |
|
|
538 |
< |
class FailingRunnable extends CheckedAction implements Runnable { |
539 |
< |
FailingRunnable(ExecutionMode m) { super(m); } |
538 |
> |
static class FailingRunnable extends CheckedAction implements Runnable { |
539 |
> |
final CFException ex; |
540 |
> |
FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); } |
541 |
|
public void run() { |
542 |
|
invoked(); |
543 |
< |
throw new CFException(); |
543 |
> |
throw ex; |
544 |
|
} |
545 |
|
} |
546 |
|
|
547 |
< |
|
545 |
< |
class CompletableFutureInc extends CheckedIntegerAction |
547 |
> |
static class CompletableFutureInc extends CheckedIntegerAction |
548 |
|
implements Function<Integer, CompletableFuture<Integer>> |
549 |
|
{ |
550 |
|
CompletableFutureInc(ExecutionMode m) { super(m); } |
557 |
|
} |
558 |
|
} |
559 |
|
|
560 |
< |
class FailingCompletableFutureFunction extends CheckedIntegerAction |
560 |
> |
static class FailingExceptionalCompletableFutureFunction extends CheckedAction |
561 |
> |
implements Function<Throwable, CompletableFuture<Integer>> |
562 |
> |
{ |
563 |
> |
final CFException ex; |
564 |
> |
FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); } |
565 |
> |
public CompletableFuture<Integer> apply(Throwable x) { |
566 |
> |
invoked(); |
567 |
> |
throw ex; |
568 |
> |
} |
569 |
> |
} |
570 |
> |
|
571 |
> |
static class ExceptionalCompletableFutureFunction extends CheckedAction |
572 |
> |
implements Function<Throwable, CompletionStage<Integer>> { |
573 |
> |
final Integer value = 3; |
574 |
> |
ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); } |
575 |
> |
public CompletionStage<Integer> apply(Throwable x) { |
576 |
> |
invoked(); |
577 |
> |
return CompletableFuture.completedFuture(value); |
578 |
> |
} |
579 |
> |
} |
580 |
> |
|
581 |
> |
static class FailingCompletableFutureFunction extends CheckedIntegerAction |
582 |
|
implements Function<Integer, CompletableFuture<Integer>> |
583 |
|
{ |
584 |
< |
FailingCompletableFutureFunction(ExecutionMode m) { super(m); } |
584 |
> |
final CFException ex; |
585 |
> |
FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); } |
586 |
|
public CompletableFuture<Integer> apply(Integer x) { |
587 |
|
invoked(); |
588 |
|
value = x; |
589 |
< |
throw new CFException(); |
589 |
> |
throw ex; |
590 |
> |
} |
591 |
> |
} |
592 |
> |
|
593 |
> |
static class CountingRejectingExecutor implements Executor { |
594 |
> |
final RejectedExecutionException ex = new RejectedExecutionException(); |
595 |
> |
final AtomicInteger count = new AtomicInteger(0); |
596 |
> |
public void execute(Runnable r) { |
597 |
> |
count.getAndIncrement(); |
598 |
> |
throw ex; |
599 |
|
} |
600 |
|
} |
601 |
|
|
693 |
|
Function<? super T,U> a) { |
694 |
|
return f.applyToEither(g, a); |
695 |
|
} |
696 |
+ |
public <T> CompletableFuture<T> exceptionally |
697 |
+ |
(CompletableFuture<T> f, |
698 |
+ |
Function<Throwable, ? extends T> fn) { |
699 |
+ |
return f.exceptionally(fn); |
700 |
+ |
} |
701 |
+ |
public <T> CompletableFuture<T> exceptionallyCompose |
702 |
+ |
(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) { |
703 |
+ |
return f.exceptionallyCompose(fn); |
704 |
+ |
} |
705 |
|
}, |
664 |
– |
|
706 |
|
ASYNC { |
707 |
|
public void checkExecutionMode() { |
708 |
|
assertEquals(defaultExecutorIsCommonPool, |
775 |
|
Function<? super T,U> a) { |
776 |
|
return f.applyToEitherAsync(g, a); |
777 |
|
} |
778 |
+ |
public <T> CompletableFuture<T> exceptionally |
779 |
+ |
(CompletableFuture<T> f, |
780 |
+ |
Function<Throwable, ? extends T> fn) { |
781 |
+ |
return f.exceptionallyAsync(fn); |
782 |
+ |
} |
783 |
+ |
|
784 |
+ |
public <T> CompletableFuture<T> exceptionallyCompose |
785 |
+ |
(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) { |
786 |
+ |
return f.exceptionallyComposeAsync(fn); |
787 |
+ |
} |
788 |
+ |
|
789 |
|
}, |
790 |
|
|
791 |
|
EXECUTOR { |
859 |
|
Function<? super T,U> a) { |
860 |
|
return f.applyToEitherAsync(g, a, new ThreadExecutor()); |
861 |
|
} |
862 |
+ |
public <T> CompletableFuture<T> exceptionally |
863 |
+ |
(CompletableFuture<T> f, |
864 |
+ |
Function<Throwable, ? extends T> fn) { |
865 |
+ |
return f.exceptionallyAsync(fn, new ThreadExecutor()); |
866 |
+ |
} |
867 |
+ |
public <T> CompletableFuture<T> exceptionallyCompose |
868 |
+ |
(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) { |
869 |
+ |
return f.exceptionallyComposeAsync(fn, new ThreadExecutor()); |
870 |
+ |
} |
871 |
+ |
|
872 |
|
}; |
873 |
|
|
874 |
|
public abstract void checkExecutionMode(); |
911 |
|
(CompletableFuture<T> f, |
912 |
|
CompletionStage<? extends T> g, |
913 |
|
Function<? super T,U> a); |
914 |
+ |
public abstract <T> CompletableFuture<T> exceptionally |
915 |
+ |
(CompletableFuture<T> f, |
916 |
+ |
Function<Throwable, ? extends T> fn); |
917 |
+ |
public abstract <T> CompletableFuture<T> exceptionallyCompose |
918 |
+ |
(CompletableFuture<T> f, |
919 |
+ |
Function<Throwable, ? extends CompletionStage<T>> fn); |
920 |
|
} |
921 |
|
|
922 |
|
/** |
924 |
|
* normally, and source result is propagated |
925 |
|
*/ |
926 |
|
public void testExceptionally_normalCompletion() { |
927 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
928 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
929 |
|
for (Integer v1 : new Integer[] { 1, null }) |
930 |
|
{ |
931 |
|
final AtomicInteger a = new AtomicInteger(0); |
932 |
|
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
933 |
|
if (!createIncomplete) assertTrue(f.complete(v1)); |
934 |
< |
final CompletableFuture<Integer> g = f.exceptionally |
935 |
< |
((Throwable t) -> { |
867 |
< |
// Should not be called |
934 |
> |
final CompletableFuture<Integer> g = m.exceptionally |
935 |
> |
(f, (Throwable t) -> { |
936 |
|
a.getAndIncrement(); |
937 |
< |
throw new AssertionError(); |
937 |
> |
threadFail("should not be called"); |
938 |
> |
return null; // unreached |
939 |
|
}); |
940 |
|
if (createIncomplete) assertTrue(f.complete(v1)); |
941 |
|
|
949 |
|
* exception |
950 |
|
*/ |
951 |
|
public void testExceptionally_exceptionalCompletion() { |
952 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
953 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
954 |
|
for (Integer v1 : new Integer[] { 1, null }) |
955 |
|
{ |
957 |
|
final CFException ex = new CFException(); |
958 |
|
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
959 |
|
if (!createIncomplete) f.completeExceptionally(ex); |
960 |
< |
final CompletableFuture<Integer> g = f.exceptionally |
961 |
< |
((Throwable t) -> { |
962 |
< |
ExecutionMode.SYNC.checkExecutionMode(); |
960 |
> |
final CompletableFuture<Integer> g = m.exceptionally |
961 |
> |
(f, (Throwable t) -> { |
962 |
> |
m.checkExecutionMode(); |
963 |
|
threadAssertSame(t, ex); |
964 |
|
a.getAndIncrement(); |
965 |
|
return v1; |
970 |
|
assertEquals(1, a.get()); |
971 |
|
}} |
972 |
|
|
973 |
+ |
/** |
974 |
+ |
* If an "exceptionally action" throws an exception, it completes |
975 |
+ |
* exceptionally with that exception |
976 |
+ |
*/ |
977 |
|
public void testExceptionally_exceptionalCompletionActionFailed() { |
978 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
979 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
905 |
– |
for (Integer v1 : new Integer[] { 1, null }) |
980 |
|
{ |
981 |
|
final AtomicInteger a = new AtomicInteger(0); |
982 |
|
final CFException ex1 = new CFException(); |
983 |
|
final CFException ex2 = new CFException(); |
984 |
|
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
985 |
|
if (!createIncomplete) f.completeExceptionally(ex1); |
986 |
< |
final CompletableFuture<Integer> g = f.exceptionally |
987 |
< |
((Throwable t) -> { |
988 |
< |
ExecutionMode.SYNC.checkExecutionMode(); |
986 |
> |
final CompletableFuture<Integer> g = m.exceptionally |
987 |
> |
(f, (Throwable t) -> { |
988 |
> |
m.checkExecutionMode(); |
989 |
|
threadAssertSame(t, ex1); |
990 |
|
a.getAndIncrement(); |
991 |
|
throw ex2; |
993 |
|
if (createIncomplete) f.completeExceptionally(ex1); |
994 |
|
|
995 |
|
checkCompletedWithWrappedException(g, ex2); |
996 |
+ |
checkCompletedExceptionally(f, ex1); |
997 |
|
assertEquals(1, a.get()); |
998 |
|
}} |
999 |
|
|
1001 |
|
* whenComplete action executes on normal completion, propagating |
1002 |
|
* source result. |
1003 |
|
*/ |
1004 |
< |
public void testWhenComplete_normalCompletion1() { |
1004 |
> |
public void testWhenComplete_normalCompletion() { |
1005 |
|
for (ExecutionMode m : ExecutionMode.values()) |
1006 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
1007 |
|
for (Integer v1 : new Integer[] { 1, null }) |
1011 |
|
if (!createIncomplete) assertTrue(f.complete(v1)); |
1012 |
|
final CompletableFuture<Integer> g = m.whenComplete |
1013 |
|
(f, |
1014 |
< |
(Integer x, Throwable t) -> { |
1014 |
> |
(Integer result, Throwable t) -> { |
1015 |
|
m.checkExecutionMode(); |
1016 |
< |
threadAssertSame(x, v1); |
1016 |
> |
threadAssertSame(result, v1); |
1017 |
|
threadAssertNull(t); |
1018 |
|
a.getAndIncrement(); |
1019 |
|
}); |
1031 |
|
public void testWhenComplete_exceptionalCompletion() { |
1032 |
|
for (ExecutionMode m : ExecutionMode.values()) |
1033 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
959 |
– |
for (Integer v1 : new Integer[] { 1, null }) |
1034 |
|
{ |
1035 |
|
final AtomicInteger a = new AtomicInteger(0); |
1036 |
|
final CFException ex = new CFException(); |
1038 |
|
if (!createIncomplete) f.completeExceptionally(ex); |
1039 |
|
final CompletableFuture<Integer> g = m.whenComplete |
1040 |
|
(f, |
1041 |
< |
(Integer x, Throwable t) -> { |
1041 |
> |
(Integer result, Throwable t) -> { |
1042 |
|
m.checkExecutionMode(); |
1043 |
< |
threadAssertNull(x); |
1043 |
> |
threadAssertNull(result); |
1044 |
|
threadAssertSame(t, ex); |
1045 |
|
a.getAndIncrement(); |
1046 |
|
}); |
1065 |
|
if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); |
1066 |
|
final CompletableFuture<Integer> g = m.whenComplete |
1067 |
|
(f, |
1068 |
< |
(Integer x, Throwable t) -> { |
1068 |
> |
(Integer result, Throwable t) -> { |
1069 |
|
m.checkExecutionMode(); |
1070 |
< |
threadAssertNull(x); |
1070 |
> |
threadAssertNull(result); |
1071 |
|
threadAssertTrue(t instanceof CancellationException); |
1072 |
|
a.getAndIncrement(); |
1073 |
|
}); |
1082 |
|
* If a whenComplete action throws an exception when triggered by |
1083 |
|
* a normal completion, it completes exceptionally |
1084 |
|
*/ |
1085 |
< |
public void testWhenComplete_actionFailed() { |
1085 |
> |
public void testWhenComplete_sourceCompletedNormallyActionFailed() { |
1086 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
1087 |
|
for (ExecutionMode m : ExecutionMode.values()) |
1088 |
|
for (Integer v1 : new Integer[] { 1, null }) |
1093 |
|
if (!createIncomplete) assertTrue(f.complete(v1)); |
1094 |
|
final CompletableFuture<Integer> g = m.whenComplete |
1095 |
|
(f, |
1096 |
< |
(Integer x, Throwable t) -> { |
1096 |
> |
(Integer result, Throwable t) -> { |
1097 |
|
m.checkExecutionMode(); |
1098 |
< |
threadAssertSame(x, v1); |
1098 |
> |
threadAssertSame(result, v1); |
1099 |
|
threadAssertNull(t); |
1100 |
|
a.getAndIncrement(); |
1101 |
|
throw ex; |
1110 |
|
/** |
1111 |
|
* If a whenComplete action throws an exception when triggered by |
1112 |
|
* a source completion that also throws an exception, the source |
1113 |
< |
* exception takes precedence. |
1113 |
> |
* exception takes precedence (unlike handle) |
1114 |
|
*/ |
1115 |
< |
public void testWhenComplete_actionFailedSourceFailed() { |
1115 |
> |
public void testWhenComplete_sourceFailedActionFailed() { |
1116 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
1117 |
|
for (ExecutionMode m : ExecutionMode.values()) |
1044 |
– |
for (Integer v1 : new Integer[] { 1, null }) |
1118 |
|
{ |
1119 |
|
final AtomicInteger a = new AtomicInteger(0); |
1120 |
|
final CFException ex1 = new CFException(); |
1124 |
|
if (!createIncomplete) f.completeExceptionally(ex1); |
1125 |
|
final CompletableFuture<Integer> g = m.whenComplete |
1126 |
|
(f, |
1127 |
< |
(Integer x, Throwable t) -> { |
1127 |
> |
(Integer result, Throwable t) -> { |
1128 |
|
m.checkExecutionMode(); |
1129 |
|
threadAssertSame(t, ex1); |
1130 |
< |
threadAssertNull(x); |
1130 |
> |
threadAssertNull(result); |
1131 |
|
a.getAndIncrement(); |
1132 |
|
throw ex2; |
1133 |
|
}); |
1135 |
|
|
1136 |
|
checkCompletedWithWrappedException(g, ex1); |
1137 |
|
checkCompletedExceptionally(f, ex1); |
1138 |
+ |
if (testImplementationDetails) { |
1139 |
+ |
assertEquals(1, ex1.getSuppressed().length); |
1140 |
+ |
assertSame(ex2, ex1.getSuppressed()[0]); |
1141 |
+ |
} |
1142 |
|
assertEquals(1, a.get()); |
1143 |
|
}} |
1144 |
|
|
1156 |
|
if (!createIncomplete) assertTrue(f.complete(v1)); |
1157 |
|
final CompletableFuture<Integer> g = m.handle |
1158 |
|
(f, |
1159 |
< |
(Integer x, Throwable t) -> { |
1159 |
> |
(Integer result, Throwable t) -> { |
1160 |
|
m.checkExecutionMode(); |
1161 |
< |
threadAssertSame(x, v1); |
1161 |
> |
threadAssertSame(result, v1); |
1162 |
|
threadAssertNull(t); |
1163 |
|
a.getAndIncrement(); |
1164 |
|
return inc(v1); |
1185 |
|
if (!createIncomplete) f.completeExceptionally(ex); |
1186 |
|
final CompletableFuture<Integer> g = m.handle |
1187 |
|
(f, |
1188 |
< |
(Integer x, Throwable t) -> { |
1188 |
> |
(Integer result, Throwable t) -> { |
1189 |
|
m.checkExecutionMode(); |
1190 |
< |
threadAssertNull(x); |
1190 |
> |
threadAssertNull(result); |
1191 |
|
threadAssertSame(t, ex); |
1192 |
|
a.getAndIncrement(); |
1193 |
|
return v1; |
1214 |
|
if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); |
1215 |
|
final CompletableFuture<Integer> g = m.handle |
1216 |
|
(f, |
1217 |
< |
(Integer x, Throwable t) -> { |
1217 |
> |
(Integer result, Throwable t) -> { |
1218 |
|
m.checkExecutionMode(); |
1219 |
< |
threadAssertNull(x); |
1219 |
> |
threadAssertNull(result); |
1220 |
|
threadAssertTrue(t instanceof CancellationException); |
1221 |
|
a.getAndIncrement(); |
1222 |
|
return v1; |
1229 |
|
}} |
1230 |
|
|
1231 |
|
/** |
1232 |
< |
* handle result completes exceptionally if action does |
1232 |
> |
* If a "handle action" throws an exception when triggered by |
1233 |
> |
* a normal completion, it completes exceptionally |
1234 |
|
*/ |
1235 |
< |
public void testHandle_sourceFailedActionFailed() { |
1235 |
> |
public void testHandle_sourceCompletedNormallyActionFailed() { |
1236 |
|
for (ExecutionMode m : ExecutionMode.values()) |
1237 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
1238 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
1239 |
|
{ |
1240 |
|
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1241 |
|
final AtomicInteger a = new AtomicInteger(0); |
1242 |
< |
final CFException ex1 = new CFException(); |
1243 |
< |
final CFException ex2 = new CFException(); |
1165 |
< |
if (!createIncomplete) f.completeExceptionally(ex1); |
1242 |
> |
final CFException ex = new CFException(); |
1243 |
> |
if (!createIncomplete) assertTrue(f.complete(v1)); |
1244 |
|
final CompletableFuture<Integer> g = m.handle |
1245 |
|
(f, |
1246 |
< |
(Integer x, Throwable t) -> { |
1246 |
> |
(Integer result, Throwable t) -> { |
1247 |
|
m.checkExecutionMode(); |
1248 |
< |
threadAssertNull(x); |
1249 |
< |
threadAssertSame(ex1, t); |
1248 |
> |
threadAssertSame(result, v1); |
1249 |
> |
threadAssertNull(t); |
1250 |
|
a.getAndIncrement(); |
1251 |
< |
throw ex2; |
1251 |
> |
throw ex; |
1252 |
|
}); |
1253 |
< |
if (createIncomplete) f.completeExceptionally(ex1); |
1253 |
> |
if (createIncomplete) assertTrue(f.complete(v1)); |
1254 |
|
|
1255 |
< |
checkCompletedWithWrappedException(g, ex2); |
1256 |
< |
checkCompletedExceptionally(f, ex1); |
1255 |
> |
checkCompletedWithWrappedException(g, ex); |
1256 |
> |
checkCompletedNormally(f, v1); |
1257 |
|
assertEquals(1, a.get()); |
1258 |
|
}} |
1259 |
|
|
1260 |
< |
public void testHandle_sourceCompletedNormallyActionFailed() { |
1261 |
< |
for (ExecutionMode m : ExecutionMode.values()) |
1260 |
> |
/** |
1261 |
> |
* If a "handle action" throws an exception when triggered by |
1262 |
> |
* a source completion that also throws an exception, the action |
1263 |
> |
* exception takes precedence (unlike whenComplete) |
1264 |
> |
*/ |
1265 |
> |
public void testHandle_sourceFailedActionFailed() { |
1266 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
1267 |
< |
for (Integer v1 : new Integer[] { 1, null }) |
1267 |
> |
for (ExecutionMode m : ExecutionMode.values()) |
1268 |
|
{ |
1187 |
– |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1269 |
|
final AtomicInteger a = new AtomicInteger(0); |
1270 |
< |
final CFException ex = new CFException(); |
1271 |
< |
if (!createIncomplete) assertTrue(f.complete(v1)); |
1270 |
> |
final CFException ex1 = new CFException(); |
1271 |
> |
final CFException ex2 = new CFException(); |
1272 |
> |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1273 |
> |
|
1274 |
> |
if (!createIncomplete) f.completeExceptionally(ex1); |
1275 |
|
final CompletableFuture<Integer> g = m.handle |
1276 |
|
(f, |
1277 |
< |
(Integer x, Throwable t) -> { |
1277 |
> |
(Integer result, Throwable t) -> { |
1278 |
|
m.checkExecutionMode(); |
1279 |
< |
threadAssertSame(x, v1); |
1280 |
< |
threadAssertNull(t); |
1279 |
> |
threadAssertNull(result); |
1280 |
> |
threadAssertSame(ex1, t); |
1281 |
|
a.getAndIncrement(); |
1282 |
< |
throw ex; |
1282 |
> |
throw ex2; |
1283 |
|
}); |
1284 |
< |
if (createIncomplete) assertTrue(f.complete(v1)); |
1284 |
> |
if (createIncomplete) f.completeExceptionally(ex1); |
1285 |
|
|
1286 |
< |
checkCompletedWithWrappedException(g, ex); |
1287 |
< |
checkCompletedNormally(f, v1); |
1286 |
> |
checkCompletedWithWrappedException(g, ex2); |
1287 |
> |
checkCompletedExceptionally(f, ex1); |
1288 |
|
assertEquals(1, a.get()); |
1289 |
|
}} |
1290 |
|
|
1317 |
|
{ |
1318 |
|
final FailingRunnable r = new FailingRunnable(m); |
1319 |
|
final CompletableFuture<Void> f = m.runAsync(r); |
1320 |
< |
checkCompletedWithWrappedCFException(f); |
1320 |
> |
checkCompletedWithWrappedException(f, r.ex); |
1321 |
|
r.assertInvoked(); |
1322 |
|
}} |
1323 |
|
|
1324 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
1325 |
+ |
public void testRunAsync_rejectingExecutor() { |
1326 |
+ |
CountingRejectingExecutor e = new CountingRejectingExecutor(); |
1327 |
+ |
try { |
1328 |
+ |
CompletableFuture.runAsync(() -> {}, e); |
1329 |
+ |
shouldThrow(); |
1330 |
+ |
} catch (Throwable t) { |
1331 |
+ |
assertSame(e.ex, t); |
1332 |
+ |
} |
1333 |
+ |
|
1334 |
+ |
assertEquals(1, e.count.get()); |
1335 |
+ |
} |
1336 |
+ |
|
1337 |
|
/** |
1338 |
|
* supplyAsync completes with result of supplier |
1339 |
|
*/ |
1364 |
|
{ |
1365 |
|
FailingSupplier r = new FailingSupplier(m); |
1366 |
|
CompletableFuture<Integer> f = m.supplyAsync(r); |
1367 |
< |
checkCompletedWithWrappedCFException(f); |
1367 |
> |
checkCompletedWithWrappedException(f, r.ex); |
1368 |
|
r.assertInvoked(); |
1369 |
|
}} |
1370 |
|
|
1371 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
1372 |
+ |
public void testSupplyAsync_rejectingExecutor() { |
1373 |
+ |
CountingRejectingExecutor e = new CountingRejectingExecutor(); |
1374 |
+ |
try { |
1375 |
+ |
CompletableFuture.supplyAsync(() -> null, e); |
1376 |
+ |
shouldThrow(); |
1377 |
+ |
} catch (Throwable t) { |
1378 |
+ |
assertSame(e.ex, t); |
1379 |
+ |
} |
1380 |
+ |
|
1381 |
+ |
assertEquals(1, e.count.get()); |
1382 |
+ |
} |
1383 |
+ |
|
1384 |
|
// seq completion methods |
1385 |
|
|
1386 |
|
/** |
1499 |
|
final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]); |
1500 |
|
final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]); |
1501 |
|
|
1502 |
< |
checkCompletedWithWrappedCFException(h0); |
1503 |
< |
checkCompletedWithWrappedCFException(h1); |
1504 |
< |
checkCompletedWithWrappedCFException(h2); |
1505 |
< |
checkCompletedWithWrappedCFException(h3); |
1506 |
< |
checkCompletedWithWrappedCFException(h4); |
1507 |
< |
checkCompletedWithWrappedCFException(h5); |
1502 |
> |
checkCompletedWithWrappedException(h0, rs[0].ex); |
1503 |
> |
checkCompletedWithWrappedException(h1, rs[1].ex); |
1504 |
> |
checkCompletedWithWrappedException(h2, rs[2].ex); |
1505 |
> |
checkCompletedWithWrappedException(h3, rs[3].ex); |
1506 |
> |
checkCompletedWithWrappedException(h4, rs[4].ex); |
1507 |
> |
checkCompletedWithWrappedException(h5, rs[5].ex); |
1508 |
|
checkCompletedNormally(f, v1); |
1509 |
|
}} |
1510 |
|
|
1603 |
|
final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]); |
1604 |
|
final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]); |
1605 |
|
|
1606 |
< |
checkCompletedWithWrappedCFException(h0); |
1607 |
< |
checkCompletedWithWrappedCFException(h1); |
1608 |
< |
checkCompletedWithWrappedCFException(h2); |
1609 |
< |
checkCompletedWithWrappedCFException(h3); |
1606 |
> |
checkCompletedWithWrappedException(h0, rs[0].ex); |
1607 |
> |
checkCompletedWithWrappedException(h1, rs[1].ex); |
1608 |
> |
checkCompletedWithWrappedException(h2, rs[2].ex); |
1609 |
> |
checkCompletedWithWrappedException(h3, rs[3].ex); |
1610 |
|
checkCompletedNormally(f, v1); |
1611 |
|
}} |
1612 |
|
|
1705 |
|
final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]); |
1706 |
|
final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]); |
1707 |
|
|
1708 |
< |
checkCompletedWithWrappedCFException(h0); |
1709 |
< |
checkCompletedWithWrappedCFException(h1); |
1710 |
< |
checkCompletedWithWrappedCFException(h2); |
1711 |
< |
checkCompletedWithWrappedCFException(h3); |
1708 |
> |
checkCompletedWithWrappedException(h0, rs[0].ex); |
1709 |
> |
checkCompletedWithWrappedException(h1, rs[1].ex); |
1710 |
> |
checkCompletedWithWrappedException(h2, rs[2].ex); |
1711 |
> |
checkCompletedWithWrappedException(h3, rs[3].ex); |
1712 |
|
checkCompletedNormally(f, v1); |
1713 |
|
}} |
1714 |
|
|
1870 |
|
assertTrue(snd.complete(w2)); |
1871 |
|
final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3); |
1872 |
|
|
1873 |
< |
checkCompletedWithWrappedCFException(h1); |
1874 |
< |
checkCompletedWithWrappedCFException(h2); |
1875 |
< |
checkCompletedWithWrappedCFException(h3); |
1873 |
> |
checkCompletedWithWrappedException(h1, r1.ex); |
1874 |
> |
checkCompletedWithWrappedException(h2, r2.ex); |
1875 |
> |
checkCompletedWithWrappedException(h3, r3.ex); |
1876 |
|
r1.assertInvoked(); |
1877 |
|
r2.assertInvoked(); |
1878 |
|
r3.assertInvoked(); |
2034 |
|
assertTrue(snd.complete(w2)); |
2035 |
|
final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3); |
2036 |
|
|
2037 |
< |
checkCompletedWithWrappedCFException(h1); |
2038 |
< |
checkCompletedWithWrappedCFException(h2); |
2039 |
< |
checkCompletedWithWrappedCFException(h3); |
2037 |
> |
checkCompletedWithWrappedException(h1, r1.ex); |
2038 |
> |
checkCompletedWithWrappedException(h2, r2.ex); |
2039 |
> |
checkCompletedWithWrappedException(h3, r3.ex); |
2040 |
|
r1.assertInvoked(); |
2041 |
|
r2.assertInvoked(); |
2042 |
|
r3.assertInvoked(); |
2198 |
|
assertTrue(snd.complete(w2)); |
2199 |
|
final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3); |
2200 |
|
|
2201 |
< |
checkCompletedWithWrappedCFException(h1); |
2202 |
< |
checkCompletedWithWrappedCFException(h2); |
2203 |
< |
checkCompletedWithWrappedCFException(h3); |
2201 |
> |
checkCompletedWithWrappedException(h1, r1.ex); |
2202 |
> |
checkCompletedWithWrappedException(h2, r2.ex); |
2203 |
> |
checkCompletedWithWrappedException(h3, r3.ex); |
2204 |
|
r1.assertInvoked(); |
2205 |
|
r2.assertInvoked(); |
2206 |
|
r3.assertInvoked(); |
2490 |
|
f.complete(v1); |
2491 |
|
final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]); |
2492 |
|
final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]); |
2493 |
< |
checkCompletedWithWrappedCFException(h0); |
2494 |
< |
checkCompletedWithWrappedCFException(h1); |
2495 |
< |
checkCompletedWithWrappedCFException(h2); |
2496 |
< |
checkCompletedWithWrappedCFException(h3); |
2493 |
> |
checkCompletedWithWrappedException(h0, rs[0].ex); |
2494 |
> |
checkCompletedWithWrappedException(h1, rs[1].ex); |
2495 |
> |
checkCompletedWithWrappedException(h2, rs[2].ex); |
2496 |
> |
checkCompletedWithWrappedException(h3, rs[3].ex); |
2497 |
|
for (int i = 0; i < 4; i++) rs[i].assertValue(v1); |
2498 |
|
|
2499 |
|
g.complete(v2); |
2502 |
|
final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]); |
2503 |
|
final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]); |
2504 |
|
|
2505 |
< |
checkCompletedWithWrappedCFException(h4); |
2505 |
> |
checkCompletedWithWrappedException(h4, rs[4].ex); |
2506 |
|
assertTrue(Objects.equals(v1, rs[4].value) || |
2507 |
|
Objects.equals(v2, rs[4].value)); |
2508 |
< |
checkCompletedWithWrappedCFException(h5); |
2508 |
> |
checkCompletedWithWrappedException(h5, rs[5].ex); |
2509 |
|
assertTrue(Objects.equals(v1, rs[5].value) || |
2510 |
|
Objects.equals(v2, rs[5].value)); |
2511 |
|
|
2643 |
|
|
2644 |
|
// unspecified behavior - both source completions available |
2645 |
|
try { |
2646 |
< |
assertEquals(null, h0.join()); |
2646 |
> |
assertNull(h0.join()); |
2647 |
|
rs[0].assertValue(v1); |
2648 |
|
} catch (CompletionException ok) { |
2649 |
|
checkCompletedWithWrappedException(h0, ex); |
2650 |
|
rs[0].assertNotInvoked(); |
2651 |
|
} |
2652 |
|
try { |
2653 |
< |
assertEquals(null, h1.join()); |
2653 |
> |
assertNull(h1.join()); |
2654 |
|
rs[1].assertValue(v1); |
2655 |
|
} catch (CompletionException ok) { |
2656 |
|
checkCompletedWithWrappedException(h1, ex); |
2657 |
|
rs[1].assertNotInvoked(); |
2658 |
|
} |
2659 |
|
try { |
2660 |
< |
assertEquals(null, h2.join()); |
2660 |
> |
assertNull(h2.join()); |
2661 |
|
rs[2].assertValue(v1); |
2662 |
|
} catch (CompletionException ok) { |
2663 |
|
checkCompletedWithWrappedException(h2, ex); |
2664 |
|
rs[2].assertNotInvoked(); |
2665 |
|
} |
2666 |
|
try { |
2667 |
< |
assertEquals(null, h3.join()); |
2667 |
> |
assertNull(h3.join()); |
2668 |
|
rs[3].assertValue(v1); |
2669 |
|
} catch (CompletionException ok) { |
2670 |
|
checkCompletedWithWrappedException(h3, ex); |
2749 |
|
f.complete(v1); |
2750 |
|
final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]); |
2751 |
|
final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]); |
2752 |
< |
checkCompletedWithWrappedCFException(h0); |
2753 |
< |
checkCompletedWithWrappedCFException(h1); |
2754 |
< |
checkCompletedWithWrappedCFException(h2); |
2755 |
< |
checkCompletedWithWrappedCFException(h3); |
2752 |
> |
checkCompletedWithWrappedException(h0, rs[0].ex); |
2753 |
> |
checkCompletedWithWrappedException(h1, rs[1].ex); |
2754 |
> |
checkCompletedWithWrappedException(h2, rs[2].ex); |
2755 |
> |
checkCompletedWithWrappedException(h3, rs[3].ex); |
2756 |
|
for (int i = 0; i < 4; i++) rs[i].assertValue(v1); |
2757 |
|
|
2758 |
|
g.complete(v2); |
2761 |
|
final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]); |
2762 |
|
final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]); |
2763 |
|
|
2764 |
< |
checkCompletedWithWrappedCFException(h4); |
2764 |
> |
checkCompletedWithWrappedException(h4, rs[4].ex); |
2765 |
|
assertTrue(Objects.equals(v1, rs[4].value) || |
2766 |
|
Objects.equals(v2, rs[4].value)); |
2767 |
< |
checkCompletedWithWrappedCFException(h5); |
2767 |
> |
checkCompletedWithWrappedException(h5, rs[5].ex); |
2768 |
|
assertTrue(Objects.equals(v1, rs[5].value) || |
2769 |
|
Objects.equals(v2, rs[5].value)); |
2770 |
|
|
2780 |
|
for (ExecutionMode m : ExecutionMode.values()) |
2781 |
|
for (Integer v1 : new Integer[] { 1, null }) |
2782 |
|
for (Integer v2 : new Integer[] { 2, null }) |
2783 |
+ |
for (boolean pushNop : new boolean[] { true, false }) |
2784 |
|
{ |
2785 |
|
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2786 |
|
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2793 |
|
checkIncomplete(h1); |
2794 |
|
rs[0].assertNotInvoked(); |
2795 |
|
rs[1].assertNotInvoked(); |
2796 |
+ |
if (pushNop) { // ad hoc test of intra-completion interference |
2797 |
+ |
m.thenRun(f, () -> {}); |
2798 |
+ |
m.thenRun(g, () -> {}); |
2799 |
+ |
} |
2800 |
|
f.complete(v1); |
2801 |
|
checkCompletedNormally(h0, null); |
2802 |
|
checkCompletedNormally(h1, null); |
2903 |
|
|
2904 |
|
// unspecified behavior - both source completions available |
2905 |
|
try { |
2906 |
< |
assertEquals(null, h0.join()); |
2906 |
> |
assertNull(h0.join()); |
2907 |
|
rs[0].assertInvoked(); |
2908 |
|
} catch (CompletionException ok) { |
2909 |
|
checkCompletedWithWrappedException(h0, ex); |
2910 |
|
rs[0].assertNotInvoked(); |
2911 |
|
} |
2912 |
|
try { |
2913 |
< |
assertEquals(null, h1.join()); |
2913 |
> |
assertNull(h1.join()); |
2914 |
|
rs[1].assertInvoked(); |
2915 |
|
} catch (CompletionException ok) { |
2916 |
|
checkCompletedWithWrappedException(h1, ex); |
2917 |
|
rs[1].assertNotInvoked(); |
2918 |
|
} |
2919 |
|
try { |
2920 |
< |
assertEquals(null, h2.join()); |
2920 |
> |
assertNull(h2.join()); |
2921 |
|
rs[2].assertInvoked(); |
2922 |
|
} catch (CompletionException ok) { |
2923 |
|
checkCompletedWithWrappedException(h2, ex); |
2924 |
|
rs[2].assertNotInvoked(); |
2925 |
|
} |
2926 |
|
try { |
2927 |
< |
assertEquals(null, h3.join()); |
2927 |
> |
assertNull(h3.join()); |
2928 |
|
rs[3].assertInvoked(); |
2929 |
|
} catch (CompletionException ok) { |
2930 |
|
checkCompletedWithWrappedException(h3, ex); |
3009 |
|
assertTrue(f.complete(v1)); |
3010 |
|
final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]); |
3011 |
|
final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]); |
3012 |
< |
checkCompletedWithWrappedCFException(h0); |
3013 |
< |
checkCompletedWithWrappedCFException(h1); |
3014 |
< |
checkCompletedWithWrappedCFException(h2); |
3015 |
< |
checkCompletedWithWrappedCFException(h3); |
3012 |
> |
checkCompletedWithWrappedException(h0, rs[0].ex); |
3013 |
> |
checkCompletedWithWrappedException(h1, rs[1].ex); |
3014 |
> |
checkCompletedWithWrappedException(h2, rs[2].ex); |
3015 |
> |
checkCompletedWithWrappedException(h3, rs[3].ex); |
3016 |
|
for (int i = 0; i < 4; i++) rs[i].assertInvoked(); |
3017 |
|
assertTrue(g.complete(v2)); |
3018 |
|
final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]); |
3019 |
|
final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]); |
3020 |
< |
checkCompletedWithWrappedCFException(h4); |
3021 |
< |
checkCompletedWithWrappedCFException(h5); |
3020 |
> |
checkCompletedWithWrappedException(h4, rs[4].ex); |
3021 |
> |
checkCompletedWithWrappedException(h5, rs[5].ex); |
3022 |
|
|
3023 |
|
checkCompletedNormally(f, v1); |
3024 |
|
checkCompletedNormally(g, v2); |
3079 |
|
final CompletableFuture<Integer> g = m.thenCompose(f, r); |
3080 |
|
if (createIncomplete) assertTrue(f.complete(v1)); |
3081 |
|
|
3082 |
< |
checkCompletedWithWrappedCFException(g); |
3082 |
> |
checkCompletedWithWrappedException(g, r.ex); |
3083 |
|
checkCompletedNormally(f, v1); |
3084 |
|
}} |
3085 |
|
|
3104 |
|
checkCancelled(f); |
3105 |
|
}} |
3106 |
|
|
3107 |
+ |
/** |
3108 |
+ |
* thenCompose result completes exceptionally if the result of the action does |
3109 |
+ |
*/ |
3110 |
+ |
public void testThenCompose_actionReturnsFailingFuture() { |
3111 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
3112 |
+ |
for (int order = 0; order < 6; order++) |
3113 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3114 |
+ |
{ |
3115 |
+ |
final CFException ex = new CFException(); |
3116 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
3117 |
+ |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
3118 |
+ |
final CompletableFuture<Integer> h; |
3119 |
+ |
// Test all permutations of orders |
3120 |
+ |
switch (order) { |
3121 |
+ |
case 0: |
3122 |
+ |
assertTrue(f.complete(v1)); |
3123 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3124 |
+ |
h = m.thenCompose(f, (x -> g)); |
3125 |
+ |
break; |
3126 |
+ |
case 1: |
3127 |
+ |
assertTrue(f.complete(v1)); |
3128 |
+ |
h = m.thenCompose(f, (x -> g)); |
3129 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3130 |
+ |
break; |
3131 |
+ |
case 2: |
3132 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3133 |
+ |
assertTrue(f.complete(v1)); |
3134 |
+ |
h = m.thenCompose(f, (x -> g)); |
3135 |
+ |
break; |
3136 |
+ |
case 3: |
3137 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3138 |
+ |
h = m.thenCompose(f, (x -> g)); |
3139 |
+ |
assertTrue(f.complete(v1)); |
3140 |
+ |
break; |
3141 |
+ |
case 4: |
3142 |
+ |
h = m.thenCompose(f, (x -> g)); |
3143 |
+ |
assertTrue(f.complete(v1)); |
3144 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3145 |
+ |
break; |
3146 |
+ |
case 5: |
3147 |
+ |
h = m.thenCompose(f, (x -> g)); |
3148 |
+ |
assertTrue(f.complete(v1)); |
3149 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3150 |
+ |
break; |
3151 |
+ |
default: throw new AssertionError(); |
3152 |
+ |
} |
3153 |
+ |
|
3154 |
+ |
checkCompletedExceptionally(g, ex); |
3155 |
+ |
checkCompletedWithWrappedException(h, ex); |
3156 |
+ |
checkCompletedNormally(f, v1); |
3157 |
+ |
}} |
3158 |
+ |
|
3159 |
+ |
/** |
3160 |
+ |
* exceptionallyCompose result completes normally after normal |
3161 |
+ |
* completion of source |
3162 |
+ |
*/ |
3163 |
+ |
public void testExceptionallyCompose_normalCompletion() { |
3164 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
3165 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
3166 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3167 |
+ |
{ |
3168 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
3169 |
+ |
final ExceptionalCompletableFutureFunction r = |
3170 |
+ |
new ExceptionalCompletableFutureFunction(m); |
3171 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
3172 |
+ |
final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r); |
3173 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
3174 |
+ |
|
3175 |
+ |
checkCompletedNormally(f, v1); |
3176 |
+ |
checkCompletedNormally(g, v1); |
3177 |
+ |
r.assertNotInvoked(); |
3178 |
+ |
}} |
3179 |
+ |
|
3180 |
+ |
/** |
3181 |
+ |
* exceptionallyCompose result completes normally after exceptional |
3182 |
+ |
* completion of source |
3183 |
+ |
*/ |
3184 |
+ |
public void testExceptionallyCompose_exceptionalCompletion() { |
3185 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
3186 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
3187 |
+ |
{ |
3188 |
+ |
final CFException ex = new CFException(); |
3189 |
+ |
final ExceptionalCompletableFutureFunction r = |
3190 |
+ |
new ExceptionalCompletableFutureFunction(m); |
3191 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
3192 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
3193 |
+ |
final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r); |
3194 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
3195 |
+ |
|
3196 |
+ |
checkCompletedExceptionally(f, ex); |
3197 |
+ |
checkCompletedNormally(g, r.value); |
3198 |
+ |
r.assertInvoked(); |
3199 |
+ |
}} |
3200 |
+ |
|
3201 |
+ |
/** |
3202 |
+ |
* exceptionallyCompose completes exceptionally on exception if action does |
3203 |
+ |
*/ |
3204 |
+ |
public void testExceptionallyCompose_actionFailed() { |
3205 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
3206 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
3207 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3208 |
+ |
{ |
3209 |
+ |
final CFException ex = new CFException(); |
3210 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
3211 |
+ |
final FailingExceptionalCompletableFutureFunction r |
3212 |
+ |
= new FailingExceptionalCompletableFutureFunction(m); |
3213 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
3214 |
+ |
final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r); |
3215 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
3216 |
+ |
|
3217 |
+ |
checkCompletedExceptionally(f, ex); |
3218 |
+ |
checkCompletedWithWrappedException(g, r.ex); |
3219 |
+ |
r.assertInvoked(); |
3220 |
+ |
}} |
3221 |
+ |
|
3222 |
+ |
|
3223 |
|
// other static methods |
3224 |
|
|
3225 |
|
/** |
3252 |
|
} |
3253 |
|
} |
3254 |
|
|
3255 |
< |
public void testAllOf_backwards() throws Exception { |
3255 |
> |
public void testAllOf_normal_backwards() throws Exception { |
3256 |
|
for (int k = 1; k < 10; k++) { |
3257 |
|
CompletableFuture<Integer>[] fs |
3258 |
|
= (CompletableFuture<Integer>[]) new CompletableFuture[k]; |
3280 |
|
for (int i = 0; i < k; i++) { |
3281 |
|
checkIncomplete(f); |
3282 |
|
checkIncomplete(CompletableFuture.allOf(fs)); |
3283 |
< |
if (i != k/2) { |
3283 |
> |
if (i != k / 2) { |
3284 |
|
fs[i].complete(i); |
3285 |
|
checkCompletedNormally(fs[i], i); |
3286 |
|
} else { |
3383 |
|
/** |
3384 |
|
* Completion methods throw NullPointerException with null arguments |
3385 |
|
*/ |
3386 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
3387 |
|
public void testNPE() { |
3388 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3389 |
|
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3390 |
|
CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null; |
3159 |
– |
CompletableFuture<?> h; |
3391 |
|
ThreadExecutor exec = new ThreadExecutor(); |
3392 |
|
|
3393 |
|
Runnable[] throwingActions = { |
3403 |
|
|
3404 |
|
() -> f.thenApply(null), |
3405 |
|
() -> f.thenApplyAsync(null), |
3406 |
< |
() -> f.thenApplyAsync((x) -> x, null), |
3406 |
> |
() -> f.thenApplyAsync(x -> x, null), |
3407 |
|
() -> f.thenApplyAsync(null, exec), |
3408 |
|
|
3409 |
|
() -> f.thenAccept(null), |
3410 |
|
() -> f.thenAcceptAsync(null), |
3411 |
< |
() -> f.thenAcceptAsync((x) -> {} , null), |
3411 |
> |
() -> f.thenAcceptAsync(x -> {} , null), |
3412 |
|
() -> f.thenAcceptAsync(null, exec), |
3413 |
|
|
3414 |
|
() -> f.thenRun(null), |
3443 |
|
() -> f.applyToEither(g, null), |
3444 |
|
() -> f.applyToEitherAsync(g, null), |
3445 |
|
() -> f.applyToEitherAsync(g, null, exec), |
3446 |
< |
() -> f.applyToEither(nullFuture, (x) -> x), |
3447 |
< |
() -> f.applyToEitherAsync(nullFuture, (x) -> x), |
3448 |
< |
() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec), |
3449 |
< |
() -> f.applyToEitherAsync(g, (x) -> x, null), |
3446 |
> |
() -> f.applyToEither(nullFuture, x -> x), |
3447 |
> |
() -> f.applyToEitherAsync(nullFuture, x -> x), |
3448 |
> |
() -> f.applyToEitherAsync(nullFuture, x -> x, exec), |
3449 |
> |
() -> f.applyToEitherAsync(g, x -> x, null), |
3450 |
|
|
3451 |
|
() -> f.acceptEither(g, null), |
3452 |
|
() -> f.acceptEitherAsync(g, null), |
3453 |
|
() -> f.acceptEitherAsync(g, null, exec), |
3454 |
< |
() -> f.acceptEither(nullFuture, (x) -> {}), |
3455 |
< |
() -> f.acceptEitherAsync(nullFuture, (x) -> {}), |
3456 |
< |
() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec), |
3457 |
< |
() -> f.acceptEitherAsync(g, (x) -> {}, null), |
3454 |
> |
() -> f.acceptEither(nullFuture, x -> {}), |
3455 |
> |
() -> f.acceptEitherAsync(nullFuture, x -> {}), |
3456 |
> |
() -> f.acceptEitherAsync(nullFuture, x -> {}, exec), |
3457 |
> |
() -> f.acceptEitherAsync(g, x -> {}, null), |
3458 |
|
|
3459 |
|
() -> f.runAfterEither(g, null), |
3460 |
|
() -> f.runAfterEitherAsync(g, null), |
3484 |
|
() -> CompletableFuture.anyOf(null, f), |
3485 |
|
|
3486 |
|
() -> f.obtrudeException(null), |
3487 |
+ |
|
3488 |
+ |
() -> CompletableFuture.delayedExecutor(1L, SECONDS, null), |
3489 |
+ |
() -> CompletableFuture.delayedExecutor(1L, null, exec), |
3490 |
+ |
() -> CompletableFuture.delayedExecutor(1L, null), |
3491 |
+ |
|
3492 |
+ |
() -> f.orTimeout(1L, null), |
3493 |
+ |
() -> f.completeOnTimeout(42, 1L, null), |
3494 |
+ |
|
3495 |
+ |
() -> CompletableFuture.failedFuture(null), |
3496 |
+ |
() -> CompletableFuture.failedStage(null), |
3497 |
|
}; |
3498 |
|
|
3499 |
|
assertThrows(NullPointerException.class, throwingActions); |
3501 |
|
} |
3502 |
|
|
3503 |
|
/** |
3504 |
+ |
* Test submissions to an executor that rejects all tasks. |
3505 |
+ |
*/ |
3506 |
+ |
public void testRejectingExecutor() { |
3507 |
+ |
for (Integer v : new Integer[] { 1, null }) |
3508 |
+ |
{ |
3509 |
+ |
final CountingRejectingExecutor e = new CountingRejectingExecutor(); |
3510 |
+ |
|
3511 |
+ |
final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v); |
3512 |
+ |
final CompletableFuture<Integer> incomplete = new CompletableFuture<>(); |
3513 |
+ |
|
3514 |
+ |
List<CompletableFuture<?>> futures = new ArrayList<>(); |
3515 |
+ |
|
3516 |
+ |
List<CompletableFuture<Integer>> srcs = new ArrayList<>(); |
3517 |
+ |
srcs.add(complete); |
3518 |
+ |
srcs.add(incomplete); |
3519 |
+ |
|
3520 |
+ |
for (CompletableFuture<Integer> src : srcs) { |
3521 |
+ |
List<CompletableFuture<?>> fs = new ArrayList<>(); |
3522 |
+ |
fs.add(src.thenRunAsync(() -> {}, e)); |
3523 |
+ |
fs.add(src.thenAcceptAsync(z -> {}, e)); |
3524 |
+ |
fs.add(src.thenApplyAsync(z -> z, e)); |
3525 |
+ |
|
3526 |
+ |
fs.add(src.thenCombineAsync(src, (x, y) -> x, e)); |
3527 |
+ |
fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e)); |
3528 |
+ |
fs.add(src.runAfterBothAsync(src, () -> {}, e)); |
3529 |
+ |
|
3530 |
+ |
fs.add(src.applyToEitherAsync(src, z -> z, e)); |
3531 |
+ |
fs.add(src.acceptEitherAsync(src, z -> {}, e)); |
3532 |
+ |
fs.add(src.runAfterEitherAsync(src, () -> {}, e)); |
3533 |
+ |
|
3534 |
+ |
fs.add(src.thenComposeAsync(z -> null, e)); |
3535 |
+ |
fs.add(src.whenCompleteAsync((z, t) -> {}, e)); |
3536 |
+ |
fs.add(src.handleAsync((z, t) -> null, e)); |
3537 |
+ |
|
3538 |
+ |
for (CompletableFuture<?> future : fs) { |
3539 |
+ |
if (src.isDone()) |
3540 |
+ |
checkCompletedWithWrappedException(future, e.ex); |
3541 |
+ |
else |
3542 |
+ |
checkIncomplete(future); |
3543 |
+ |
} |
3544 |
+ |
futures.addAll(fs); |
3545 |
+ |
} |
3546 |
+ |
|
3547 |
+ |
{ |
3548 |
+ |
List<CompletableFuture<?>> fs = new ArrayList<>(); |
3549 |
+ |
|
3550 |
+ |
fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e)); |
3551 |
+ |
fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e)); |
3552 |
+ |
|
3553 |
+ |
fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e)); |
3554 |
+ |
fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e)); |
3555 |
+ |
|
3556 |
+ |
fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e)); |
3557 |
+ |
fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e)); |
3558 |
+ |
|
3559 |
+ |
for (CompletableFuture<?> future : fs) |
3560 |
+ |
checkIncomplete(future); |
3561 |
+ |
futures.addAll(fs); |
3562 |
+ |
} |
3563 |
+ |
|
3564 |
+ |
{ |
3565 |
+ |
List<CompletableFuture<?>> fs = new ArrayList<>(); |
3566 |
+ |
|
3567 |
+ |
fs.add(complete.applyToEitherAsync(incomplete, z -> z, e)); |
3568 |
+ |
fs.add(incomplete.applyToEitherAsync(complete, z -> z, e)); |
3569 |
+ |
|
3570 |
+ |
fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e)); |
3571 |
+ |
fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e)); |
3572 |
+ |
|
3573 |
+ |
fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e)); |
3574 |
+ |
fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e)); |
3575 |
+ |
|
3576 |
+ |
for (CompletableFuture<?> future : fs) |
3577 |
+ |
checkCompletedWithWrappedException(future, e.ex); |
3578 |
+ |
futures.addAll(fs); |
3579 |
+ |
} |
3580 |
+ |
|
3581 |
+ |
incomplete.complete(v); |
3582 |
+ |
|
3583 |
+ |
for (CompletableFuture<?> future : futures) |
3584 |
+ |
checkCompletedWithWrappedException(future, e.ex); |
3585 |
+ |
|
3586 |
+ |
assertEquals(futures.size(), e.count.get()); |
3587 |
+ |
}} |
3588 |
+ |
|
3589 |
+ |
/** |
3590 |
+ |
* Test submissions to an executor that rejects all tasks, but |
3591 |
+ |
* should never be invoked because the dependent future is |
3592 |
+ |
* explicitly completed. |
3593 |
+ |
*/ |
3594 |
+ |
public void testRejectingExecutorNeverInvoked() { |
3595 |
+ |
for (Integer v : new Integer[] { 1, null }) |
3596 |
+ |
{ |
3597 |
+ |
final CountingRejectingExecutor e = new CountingRejectingExecutor(); |
3598 |
+ |
|
3599 |
+ |
final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v); |
3600 |
+ |
final CompletableFuture<Integer> incomplete = new CompletableFuture<>(); |
3601 |
+ |
|
3602 |
+ |
List<CompletableFuture<?>> futures = new ArrayList<>(); |
3603 |
+ |
|
3604 |
+ |
List<CompletableFuture<Integer>> srcs = new ArrayList<>(); |
3605 |
+ |
srcs.add(complete); |
3606 |
+ |
srcs.add(incomplete); |
3607 |
+ |
|
3608 |
+ |
List<CompletableFuture<?>> fs = new ArrayList<>(); |
3609 |
+ |
fs.add(incomplete.thenRunAsync(() -> {}, e)); |
3610 |
+ |
fs.add(incomplete.thenAcceptAsync(z -> {}, e)); |
3611 |
+ |
fs.add(incomplete.thenApplyAsync(z -> z, e)); |
3612 |
+ |
|
3613 |
+ |
fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e)); |
3614 |
+ |
fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e)); |
3615 |
+ |
fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e)); |
3616 |
+ |
|
3617 |
+ |
fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e)); |
3618 |
+ |
fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e)); |
3619 |
+ |
fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e)); |
3620 |
+ |
|
3621 |
+ |
fs.add(incomplete.thenComposeAsync(z -> null, e)); |
3622 |
+ |
fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e)); |
3623 |
+ |
fs.add(incomplete.handleAsync((z, t) -> null, e)); |
3624 |
+ |
|
3625 |
+ |
fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e)); |
3626 |
+ |
fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e)); |
3627 |
+ |
|
3628 |
+ |
fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e)); |
3629 |
+ |
fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e)); |
3630 |
+ |
|
3631 |
+ |
fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e)); |
3632 |
+ |
fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e)); |
3633 |
+ |
|
3634 |
+ |
for (CompletableFuture<?> future : fs) |
3635 |
+ |
checkIncomplete(future); |
3636 |
+ |
|
3637 |
+ |
for (CompletableFuture<?> future : fs) |
3638 |
+ |
future.complete(null); |
3639 |
+ |
|
3640 |
+ |
incomplete.complete(v); |
3641 |
+ |
|
3642 |
+ |
for (CompletableFuture<?> future : fs) |
3643 |
+ |
checkCompletedNormally(future, null); |
3644 |
+ |
|
3645 |
+ |
assertEquals(0, e.count.get()); |
3646 |
+ |
}} |
3647 |
+ |
|
3648 |
+ |
/** |
3649 |
|
* toCompletableFuture returns this CompletableFuture. |
3650 |
|
*/ |
3651 |
|
public void testToCompletableFuture() { |
3653 |
|
assertSame(f, f.toCompletableFuture()); |
3654 |
|
} |
3655 |
|
|
3656 |
+ |
// jdk9 |
3657 |
+ |
|
3658 |
+ |
/** |
3659 |
+ |
* newIncompleteFuture returns an incomplete CompletableFuture |
3660 |
+ |
*/ |
3661 |
+ |
public void testNewIncompleteFuture() { |
3662 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3663 |
+ |
{ |
3664 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3665 |
+ |
CompletableFuture<Integer> g = f.newIncompleteFuture(); |
3666 |
+ |
checkIncomplete(f); |
3667 |
+ |
checkIncomplete(g); |
3668 |
+ |
f.complete(v1); |
3669 |
+ |
checkCompletedNormally(f, v1); |
3670 |
+ |
checkIncomplete(g); |
3671 |
+ |
g.complete(v1); |
3672 |
+ |
checkCompletedNormally(g, v1); |
3673 |
+ |
assertSame(g.getClass(), CompletableFuture.class); |
3674 |
+ |
}} |
3675 |
+ |
|
3676 |
+ |
/** |
3677 |
+ |
* completedStage returns a completed CompletionStage |
3678 |
+ |
*/ |
3679 |
+ |
public void testCompletedStage() { |
3680 |
+ |
AtomicInteger x = new AtomicInteger(0); |
3681 |
+ |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3682 |
+ |
CompletionStage<Integer> f = CompletableFuture.completedStage(1); |
3683 |
+ |
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3684 |
+ |
assertEquals(x.get(), 1); |
3685 |
+ |
assertNull(r.get()); |
3686 |
+ |
} |
3687 |
+ |
|
3688 |
+ |
/** |
3689 |
+ |
* defaultExecutor by default returns the commonPool if |
3690 |
+ |
* it supports more than one thread. |
3691 |
+ |
*/ |
3692 |
+ |
public void testDefaultExecutor() { |
3693 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3694 |
+ |
Executor e = f.defaultExecutor(); |
3695 |
+ |
Executor c = ForkJoinPool.commonPool(); |
3696 |
+ |
if (ForkJoinPool.getCommonPoolParallelism() > 1) |
3697 |
+ |
assertSame(e, c); |
3698 |
+ |
else |
3699 |
+ |
assertNotSame(e, c); |
3700 |
+ |
} |
3701 |
+ |
|
3702 |
+ |
/** |
3703 |
+ |
* failedFuture returns a CompletableFuture completed |
3704 |
+ |
* exceptionally with the given Exception |
3705 |
+ |
*/ |
3706 |
+ |
public void testFailedFuture() { |
3707 |
+ |
CFException ex = new CFException(); |
3708 |
+ |
CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex); |
3709 |
+ |
checkCompletedExceptionally(f, ex); |
3710 |
+ |
} |
3711 |
+ |
|
3712 |
+ |
/** |
3713 |
+ |
* failedFuture(null) throws NPE |
3714 |
+ |
*/ |
3715 |
+ |
public void testFailedFuture_null() { |
3716 |
+ |
try { |
3717 |
+ |
CompletableFuture<Integer> f = CompletableFuture.failedFuture(null); |
3718 |
+ |
shouldThrow(); |
3719 |
+ |
} catch (NullPointerException success) {} |
3720 |
+ |
} |
3721 |
+ |
|
3722 |
+ |
/** |
3723 |
+ |
* copy returns a CompletableFuture that is completed normally, |
3724 |
+ |
* with the same value, when source is. |
3725 |
+ |
*/ |
3726 |
+ |
public void testCopy_normalCompletion() { |
3727 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
3728 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3729 |
+ |
{ |
3730 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3731 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
3732 |
+ |
CompletableFuture<Integer> g = f.copy(); |
3733 |
+ |
if (createIncomplete) { |
3734 |
+ |
checkIncomplete(f); |
3735 |
+ |
checkIncomplete(g); |
3736 |
+ |
assertTrue(f.complete(v1)); |
3737 |
+ |
} |
3738 |
+ |
checkCompletedNormally(f, v1); |
3739 |
+ |
checkCompletedNormally(g, v1); |
3740 |
+ |
}} |
3741 |
+ |
|
3742 |
+ |
/** |
3743 |
+ |
* copy returns a CompletableFuture that is completed exceptionally |
3744 |
+ |
* when source is. |
3745 |
+ |
*/ |
3746 |
+ |
public void testCopy_exceptionalCompletion() { |
3747 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
3748 |
+ |
{ |
3749 |
+ |
CFException ex = new CFException(); |
3750 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3751 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
3752 |
+ |
CompletableFuture<Integer> g = f.copy(); |
3753 |
+ |
if (createIncomplete) { |
3754 |
+ |
checkIncomplete(f); |
3755 |
+ |
checkIncomplete(g); |
3756 |
+ |
f.completeExceptionally(ex); |
3757 |
+ |
} |
3758 |
+ |
checkCompletedExceptionally(f, ex); |
3759 |
+ |
checkCompletedWithWrappedException(g, ex); |
3760 |
+ |
}} |
3761 |
+ |
|
3762 |
+ |
/** |
3763 |
+ |
* Completion of a copy does not complete its source. |
3764 |
+ |
*/ |
3765 |
+ |
public void testCopy_oneWayPropagation() { |
3766 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3767 |
+ |
assertTrue(f.copy().complete(1)); |
3768 |
+ |
assertTrue(f.copy().complete(null)); |
3769 |
+ |
assertTrue(f.copy().cancel(true)); |
3770 |
+ |
assertTrue(f.copy().cancel(false)); |
3771 |
+ |
assertTrue(f.copy().completeExceptionally(new CFException())); |
3772 |
+ |
checkIncomplete(f); |
3773 |
+ |
} |
3774 |
+ |
|
3775 |
+ |
/** |
3776 |
+ |
* minimalCompletionStage returns a CompletableFuture that is |
3777 |
+ |
* completed normally, with the same value, when source is. |
3778 |
+ |
*/ |
3779 |
+ |
public void testMinimalCompletionStage() { |
3780 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3781 |
+ |
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3782 |
+ |
AtomicInteger x = new AtomicInteger(0); |
3783 |
+ |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3784 |
+ |
checkIncomplete(f); |
3785 |
+ |
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3786 |
+ |
f.complete(1); |
3787 |
+ |
checkCompletedNormally(f, 1); |
3788 |
+ |
assertEquals(x.get(), 1); |
3789 |
+ |
assertNull(r.get()); |
3790 |
+ |
} |
3791 |
+ |
|
3792 |
+ |
/** |
3793 |
+ |
* minimalCompletionStage returns a CompletableFuture that is |
3794 |
+ |
* completed exceptionally when source is. |
3795 |
+ |
*/ |
3796 |
+ |
public void testMinimalCompletionStage2() { |
3797 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3798 |
+ |
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3799 |
+ |
AtomicInteger x = new AtomicInteger(0); |
3800 |
+ |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3801 |
+ |
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3802 |
+ |
checkIncomplete(f); |
3803 |
+ |
CFException ex = new CFException(); |
3804 |
+ |
f.completeExceptionally(ex); |
3805 |
+ |
checkCompletedExceptionally(f, ex); |
3806 |
+ |
assertEquals(x.get(), 0); |
3807 |
+ |
assertEquals(r.get().getCause(), ex); |
3808 |
+ |
} |
3809 |
+ |
|
3810 |
+ |
/** |
3811 |
+ |
* failedStage returns a CompletionStage completed |
3812 |
+ |
* exceptionally with the given Exception |
3813 |
+ |
*/ |
3814 |
+ |
public void testFailedStage() { |
3815 |
+ |
CFException ex = new CFException(); |
3816 |
+ |
CompletionStage<Integer> f = CompletableFuture.failedStage(ex); |
3817 |
+ |
AtomicInteger x = new AtomicInteger(0); |
3818 |
+ |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3819 |
+ |
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3820 |
+ |
assertEquals(x.get(), 0); |
3821 |
+ |
assertEquals(r.get(), ex); |
3822 |
+ |
} |
3823 |
+ |
|
3824 |
+ |
/** |
3825 |
+ |
* completeAsync completes with value of given supplier |
3826 |
+ |
*/ |
3827 |
+ |
public void testCompleteAsync() { |
3828 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3829 |
+ |
{ |
3830 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3831 |
+ |
f.completeAsync(() -> v1); |
3832 |
+ |
f.join(); |
3833 |
+ |
checkCompletedNormally(f, v1); |
3834 |
+ |
}} |
3835 |
+ |
|
3836 |
+ |
/** |
3837 |
+ |
* completeAsync completes exceptionally if given supplier throws |
3838 |
+ |
*/ |
3839 |
+ |
public void testCompleteAsync2() { |
3840 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3841 |
+ |
CFException ex = new CFException(); |
3842 |
+ |
f.completeAsync(() -> { throw ex; }); |
3843 |
+ |
try { |
3844 |
+ |
f.join(); |
3845 |
+ |
shouldThrow(); |
3846 |
+ |
} catch (CompletionException success) {} |
3847 |
+ |
checkCompletedWithWrappedException(f, ex); |
3848 |
+ |
} |
3849 |
+ |
|
3850 |
+ |
/** |
3851 |
+ |
* completeAsync with given executor completes with value of given supplier |
3852 |
+ |
*/ |
3853 |
+ |
public void testCompleteAsync3() { |
3854 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3855 |
+ |
{ |
3856 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3857 |
+ |
ThreadExecutor executor = new ThreadExecutor(); |
3858 |
+ |
f.completeAsync(() -> v1, executor); |
3859 |
+ |
assertSame(v1, f.join()); |
3860 |
+ |
checkCompletedNormally(f, v1); |
3861 |
+ |
assertEquals(1, executor.count.get()); |
3862 |
+ |
}} |
3863 |
+ |
|
3864 |
+ |
/** |
3865 |
+ |
* completeAsync with given executor completes exceptionally if |
3866 |
+ |
* given supplier throws |
3867 |
+ |
*/ |
3868 |
+ |
public void testCompleteAsync4() { |
3869 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3870 |
+ |
CFException ex = new CFException(); |
3871 |
+ |
ThreadExecutor executor = new ThreadExecutor(); |
3872 |
+ |
f.completeAsync(() -> { throw ex; }, executor); |
3873 |
+ |
try { |
3874 |
+ |
f.join(); |
3875 |
+ |
shouldThrow(); |
3876 |
+ |
} catch (CompletionException success) {} |
3877 |
+ |
checkCompletedWithWrappedException(f, ex); |
3878 |
+ |
assertEquals(1, executor.count.get()); |
3879 |
+ |
} |
3880 |
+ |
|
3881 |
+ |
/** |
3882 |
+ |
* orTimeout completes with TimeoutException if not complete |
3883 |
+ |
*/ |
3884 |
+ |
public void testOrTimeout_timesOut() { |
3885 |
+ |
long timeoutMillis = timeoutMillis(); |
3886 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3887 |
+ |
long startTime = System.nanoTime(); |
3888 |
+ |
assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS)); |
3889 |
+ |
checkCompletedWithTimeoutException(f); |
3890 |
+ |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
3891 |
+ |
} |
3892 |
+ |
|
3893 |
+ |
/** |
3894 |
+ |
* orTimeout completes normally if completed before timeout |
3895 |
+ |
*/ |
3896 |
+ |
public void testOrTimeout_completed() { |
3897 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3898 |
+ |
{ |
3899 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3900 |
+ |
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3901 |
+ |
long startTime = System.nanoTime(); |
3902 |
+ |
f.complete(v1); |
3903 |
+ |
assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS)); |
3904 |
+ |
assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS)); |
3905 |
+ |
g.complete(v1); |
3906 |
+ |
checkCompletedNormally(f, v1); |
3907 |
+ |
checkCompletedNormally(g, v1); |
3908 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
3909 |
+ |
}} |
3910 |
+ |
|
3911 |
+ |
/** |
3912 |
+ |
* completeOnTimeout completes with given value if not complete |
3913 |
+ |
*/ |
3914 |
+ |
public void testCompleteOnTimeout_timesOut() { |
3915 |
+ |
testInParallel(() -> testCompleteOnTimeout_timesOut(42), |
3916 |
+ |
() -> testCompleteOnTimeout_timesOut(null)); |
3917 |
+ |
} |
3918 |
+ |
|
3919 |
+ |
/** |
3920 |
+ |
* completeOnTimeout completes with given value if not complete |
3921 |
+ |
*/ |
3922 |
+ |
public void testCompleteOnTimeout_timesOut(Integer v) { |
3923 |
+ |
long timeoutMillis = timeoutMillis(); |
3924 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3925 |
+ |
long startTime = System.nanoTime(); |
3926 |
+ |
assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS)); |
3927 |
+ |
assertSame(v, f.join()); |
3928 |
+ |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
3929 |
+ |
f.complete(99); // should have no effect |
3930 |
+ |
checkCompletedNormally(f, v); |
3931 |
+ |
} |
3932 |
+ |
|
3933 |
+ |
/** |
3934 |
+ |
* completeOnTimeout has no effect if completed within timeout |
3935 |
+ |
*/ |
3936 |
+ |
public void testCompleteOnTimeout_completed() { |
3937 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3938 |
+ |
{ |
3939 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3940 |
+ |
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3941 |
+ |
long startTime = System.nanoTime(); |
3942 |
+ |
f.complete(v1); |
3943 |
+ |
assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS)); |
3944 |
+ |
assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS)); |
3945 |
+ |
g.complete(v1); |
3946 |
+ |
checkCompletedNormally(f, v1); |
3947 |
+ |
checkCompletedNormally(g, v1); |
3948 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
3949 |
+ |
}} |
3950 |
+ |
|
3951 |
+ |
/** |
3952 |
+ |
* delayedExecutor returns an executor that delays submission |
3953 |
+ |
*/ |
3954 |
+ |
public void testDelayedExecutor() { |
3955 |
+ |
testInParallel(() -> testDelayedExecutor(null, null), |
3956 |
+ |
() -> testDelayedExecutor(null, 1), |
3957 |
+ |
() -> testDelayedExecutor(new ThreadExecutor(), 1), |
3958 |
+ |
() -> testDelayedExecutor(new ThreadExecutor(), 1)); |
3959 |
+ |
} |
3960 |
+ |
|
3961 |
+ |
public void testDelayedExecutor(Executor executor, Integer v) throws Exception { |
3962 |
+ |
long timeoutMillis = timeoutMillis(); |
3963 |
+ |
// Use an "unreasonably long" long timeout to catch lingering threads |
3964 |
+ |
long longTimeoutMillis = 1000 * 60 * 60 * 24; |
3965 |
+ |
final Executor delayer, longDelayer; |
3966 |
+ |
if (executor == null) { |
3967 |
+ |
delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS); |
3968 |
+ |
longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS); |
3969 |
+ |
} else { |
3970 |
+ |
delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor); |
3971 |
+ |
longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor); |
3972 |
+ |
} |
3973 |
+ |
long startTime = System.nanoTime(); |
3974 |
+ |
CompletableFuture<Integer> f = |
3975 |
+ |
CompletableFuture.supplyAsync(() -> v, delayer); |
3976 |
+ |
CompletableFuture<Integer> g = |
3977 |
+ |
CompletableFuture.supplyAsync(() -> v, longDelayer); |
3978 |
+ |
|
3979 |
+ |
assertNull(g.getNow(null)); |
3980 |
+ |
|
3981 |
+ |
assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS)); |
3982 |
+ |
long millisElapsed = millisElapsedSince(startTime); |
3983 |
+ |
assertTrue(millisElapsed >= timeoutMillis); |
3984 |
+ |
assertTrue(millisElapsed < LONG_DELAY_MS / 2); |
3985 |
+ |
|
3986 |
+ |
checkCompletedNormally(f, v); |
3987 |
+ |
|
3988 |
+ |
checkIncomplete(g); |
3989 |
+ |
assertTrue(g.cancel(true)); |
3990 |
+ |
} |
3991 |
+ |
|
3992 |
|
//--- tests of implementation details; not part of official tck --- |
3993 |
|
|
3994 |
|
Object resultOf(CompletableFuture<?> f) { |
3995 |
+ |
SecurityManager sm = System.getSecurityManager(); |
3996 |
+ |
if (sm != null) { |
3997 |
+ |
try { |
3998 |
+ |
System.setSecurityManager(null); |
3999 |
+ |
} catch (SecurityException giveUp) { |
4000 |
+ |
return "Reflection not available"; |
4001 |
+ |
} |
4002 |
+ |
} |
4003 |
+ |
|
4004 |
|
try { |
4005 |
|
java.lang.reflect.Field resultField |
4006 |
|
= CompletableFuture.class.getDeclaredField("result"); |
4007 |
|
resultField.setAccessible(true); |
4008 |
|
return resultField.get(f); |
4009 |
< |
} catch (Throwable t) { throw new AssertionError(t); } |
4009 |
> |
} catch (Throwable t) { |
4010 |
> |
throw new AssertionError(t); |
4011 |
> |
} finally { |
4012 |
> |
if (sm != null) System.setSecurityManager(sm); |
4013 |
> |
} |
4014 |
|
} |
4015 |
|
|
4016 |
|
public void testExceptionPropagationReusesResultObject() { |
4021 |
|
final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42); |
4022 |
|
final CompletableFuture<Integer> incomplete = new CompletableFuture<>(); |
4023 |
|
|
4024 |
+ |
final Runnable noopRunnable = new Noop(m); |
4025 |
+ |
final Consumer<Integer> noopConsumer = new NoopConsumer(m); |
4026 |
+ |
final Function<Integer, Integer> incFunction = new IncFunction(m); |
4027 |
+ |
|
4028 |
|
List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs |
4029 |
|
= new ArrayList<>(); |
4030 |
|
|
4031 |
< |
funs.add((y) -> m.thenRun(y, new Noop(m))); |
4032 |
< |
funs.add((y) -> m.thenAccept(y, new NoopConsumer(m))); |
4033 |
< |
funs.add((y) -> m.thenApply(y, new IncFunction(m))); |
4034 |
< |
|
4035 |
< |
funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m))); |
4036 |
< |
funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m))); |
4037 |
< |
funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m))); |
4038 |
< |
|
4039 |
< |
funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m))); |
4040 |
< |
funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m))); |
4041 |
< |
funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m))); |
4042 |
< |
|
4043 |
< |
funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {})); |
4044 |
< |
|
4045 |
< |
funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m))); |
4046 |
< |
|
4047 |
< |
funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42})); |
4048 |
< |
funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete})); |
4031 |
> |
funs.add(y -> m.thenRun(y, noopRunnable)); |
4032 |
> |
funs.add(y -> m.thenAccept(y, noopConsumer)); |
4033 |
> |
funs.add(y -> m.thenApply(y, incFunction)); |
4034 |
> |
|
4035 |
> |
funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable)); |
4036 |
> |
funs.add(y -> m.acceptEither(y, incomplete, noopConsumer)); |
4037 |
> |
funs.add(y -> m.applyToEither(y, incomplete, incFunction)); |
4038 |
> |
|
4039 |
> |
funs.add(y -> m.runAfterBoth(y, v42, noopRunnable)); |
4040 |
> |
funs.add(y -> m.runAfterBoth(v42, y, noopRunnable)); |
4041 |
> |
funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m))); |
4042 |
> |
funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m))); |
4043 |
> |
funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m))); |
4044 |
> |
funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m))); |
4045 |
> |
|
4046 |
> |
funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {})); |
4047 |
> |
|
4048 |
> |
funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m))); |
4049 |
> |
|
4050 |
> |
funs.add(y -> CompletableFuture.allOf(y)); |
4051 |
> |
funs.add(y -> CompletableFuture.allOf(y, v42)); |
4052 |
> |
funs.add(y -> CompletableFuture.allOf(v42, y)); |
4053 |
> |
funs.add(y -> CompletableFuture.anyOf(y)); |
4054 |
> |
funs.add(y -> CompletableFuture.anyOf(y, incomplete)); |
4055 |
> |
funs.add(y -> CompletableFuture.anyOf(incomplete, y)); |
4056 |
|
|
4057 |
|
for (Function<CompletableFuture<Integer>, CompletableFuture<?>> |
4058 |
|
fun : funs) { |
4059 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4060 |
|
f.completeExceptionally(ex); |
4061 |
< |
CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m)); |
4061 |
> |
CompletableFuture<Integer> src = m.thenApply(f, incFunction); |
4062 |
|
checkCompletedWithWrappedException(src, ex); |
4063 |
|
CompletableFuture<?> dep = fun.apply(src); |
4064 |
|
checkCompletedWithWrappedException(dep, ex); |
4068 |
|
for (Function<CompletableFuture<Integer>, CompletableFuture<?>> |
4069 |
|
fun : funs) { |
4070 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4071 |
< |
CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m)); |
4071 |
> |
CompletableFuture<Integer> src = m.thenApply(f, incFunction); |
4072 |
|
CompletableFuture<?> dep = fun.apply(src); |
4073 |
|
f.completeExceptionally(ex); |
4074 |
|
checkCompletedWithWrappedException(src, ex); |
4082 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4083 |
|
f.cancel(mayInterruptIfRunning); |
4084 |
|
checkCancelled(f); |
4085 |
< |
CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m)); |
4085 |
> |
CompletableFuture<Integer> src = m.thenApply(f, incFunction); |
4086 |
|
checkCompletedWithWrappedCancellationException(src); |
4087 |
|
CompletableFuture<?> dep = fun.apply(src); |
4088 |
|
checkCompletedWithWrappedCancellationException(dep); |
4093 |
|
for (Function<CompletableFuture<Integer>, CompletableFuture<?>> |
4094 |
|
fun : funs) { |
4095 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4096 |
< |
CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m)); |
4096 |
> |
CompletableFuture<Integer> src = m.thenApply(f, incFunction); |
4097 |
|
CompletableFuture<?> dep = fun.apply(src); |
4098 |
|
f.cancel(mayInterruptIfRunning); |
4099 |
|
checkCancelled(f); |
4103 |
|
} |
4104 |
|
}} |
4105 |
|
|
4106 |
+ |
/** |
4107 |
+ |
* Minimal completion stages throw UOE for most non-CompletionStage methods |
4108 |
+ |
*/ |
4109 |
+ |
public void testMinimalCompletionStage_minimality() { |
4110 |
+ |
if (!testImplementationDetails) return; |
4111 |
+ |
Function<Method, String> toSignature = |
4112 |
+ |
method -> method.getName() + Arrays.toString(method.getParameterTypes()); |
4113 |
+ |
Predicate<Method> isNotStatic = |
4114 |
+ |
method -> (method.getModifiers() & Modifier.STATIC) == 0; |
4115 |
+ |
List<Method> minimalMethods = |
4116 |
+ |
Stream.of(Object.class, CompletionStage.class) |
4117 |
+ |
.flatMap(klazz -> Stream.of(klazz.getMethods())) |
4118 |
+ |
.filter(isNotStatic) |
4119 |
+ |
.collect(Collectors.toList()); |
4120 |
+ |
// Methods from CompletableFuture permitted NOT to throw UOE |
4121 |
+ |
String[] signatureWhitelist = { |
4122 |
+ |
"newIncompleteFuture[]", |
4123 |
+ |
"defaultExecutor[]", |
4124 |
+ |
"minimalCompletionStage[]", |
4125 |
+ |
"copy[]", |
4126 |
+ |
}; |
4127 |
+ |
Set<String> permittedMethodSignatures = |
4128 |
+ |
Stream.concat(minimalMethods.stream().map(toSignature), |
4129 |
+ |
Stream.of(signatureWhitelist)) |
4130 |
+ |
.collect(Collectors.toSet()); |
4131 |
+ |
List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods()) |
4132 |
+ |
.filter(isNotStatic) |
4133 |
+ |
.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method))) |
4134 |
+ |
.collect(Collectors.toList()); |
4135 |
+ |
|
4136 |
+ |
List<CompletionStage<Integer>> stages = new ArrayList<>(); |
4137 |
+ |
CompletionStage<Integer> min = |
4138 |
+ |
new CompletableFuture<Integer>().minimalCompletionStage(); |
4139 |
+ |
stages.add(min); |
4140 |
+ |
stages.add(min.thenApply(x -> x)); |
4141 |
+ |
stages.add(CompletableFuture.completedStage(1)); |
4142 |
+ |
stages.add(CompletableFuture.failedStage(new CFException())); |
4143 |
+ |
|
4144 |
+ |
List<Method> bugs = new ArrayList<>(); |
4145 |
+ |
for (Method method : allMethods) { |
4146 |
+ |
Class<?>[] parameterTypes = method.getParameterTypes(); |
4147 |
+ |
Object[] args = new Object[parameterTypes.length]; |
4148 |
+ |
// Manufacture boxed primitives for primitive params |
4149 |
+ |
for (int i = 0; i < args.length; i++) { |
4150 |
+ |
Class<?> type = parameterTypes[i]; |
4151 |
+ |
if (parameterTypes[i] == boolean.class) |
4152 |
+ |
args[i] = false; |
4153 |
+ |
else if (parameterTypes[i] == int.class) |
4154 |
+ |
args[i] = 0; |
4155 |
+ |
else if (parameterTypes[i] == long.class) |
4156 |
+ |
args[i] = 0L; |
4157 |
+ |
} |
4158 |
+ |
for (CompletionStage<Integer> stage : stages) { |
4159 |
+ |
try { |
4160 |
+ |
method.invoke(stage, args); |
4161 |
+ |
bugs.add(method); |
4162 |
+ |
} |
4163 |
+ |
catch (java.lang.reflect.InvocationTargetException expected) { |
4164 |
+ |
if (! (expected.getCause() instanceof UnsupportedOperationException)) { |
4165 |
+ |
bugs.add(method); |
4166 |
+ |
// expected.getCause().printStackTrace(); |
4167 |
+ |
} |
4168 |
+ |
} |
4169 |
+ |
catch (ReflectiveOperationException bad) { throw new Error(bad); } |
4170 |
+ |
} |
4171 |
+ |
} |
4172 |
+ |
if (!bugs.isEmpty()) |
4173 |
+ |
throw new Error("Methods did not throw UOE: " + bugs); |
4174 |
+ |
} |
4175 |
+ |
|
4176 |
+ |
/** |
4177 |
+ |
* minimalStage.toCompletableFuture() returns a CompletableFuture that |
4178 |
+ |
* is completed normally, with the same value, when source is. |
4179 |
+ |
*/ |
4180 |
+ |
public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() { |
4181 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4182 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4183 |
+ |
{ |
4184 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4185 |
+ |
CompletionStage<Integer> minimal = f.minimalCompletionStage(); |
4186 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4187 |
+ |
CompletableFuture<Integer> g = minimal.toCompletableFuture(); |
4188 |
+ |
if (createIncomplete) { |
4189 |
+ |
checkIncomplete(f); |
4190 |
+ |
checkIncomplete(g); |
4191 |
+ |
assertTrue(f.complete(v1)); |
4192 |
+ |
} |
4193 |
+ |
checkCompletedNormally(f, v1); |
4194 |
+ |
checkCompletedNormally(g, v1); |
4195 |
+ |
}} |
4196 |
+ |
|
4197 |
+ |
/** |
4198 |
+ |
* minimalStage.toCompletableFuture() returns a CompletableFuture that |
4199 |
+ |
* is completed exceptionally when source is. |
4200 |
+ |
*/ |
4201 |
+ |
public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() { |
4202 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4203 |
+ |
{ |
4204 |
+ |
CFException ex = new CFException(); |
4205 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4206 |
+ |
CompletionStage<Integer> minimal = f.minimalCompletionStage(); |
4207 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
4208 |
+ |
CompletableFuture<Integer> g = minimal.toCompletableFuture(); |
4209 |
+ |
if (createIncomplete) { |
4210 |
+ |
checkIncomplete(f); |
4211 |
+ |
checkIncomplete(g); |
4212 |
+ |
f.completeExceptionally(ex); |
4213 |
+ |
} |
4214 |
+ |
checkCompletedExceptionally(f, ex); |
4215 |
+ |
checkCompletedWithWrappedException(g, ex); |
4216 |
+ |
}} |
4217 |
+ |
|
4218 |
+ |
/** |
4219 |
+ |
* minimalStage.toCompletableFuture() gives mutable CompletableFuture |
4220 |
+ |
*/ |
4221 |
+ |
public void testMinimalCompletionStage_toCompletableFuture_mutable() { |
4222 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4223 |
+ |
{ |
4224 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4225 |
+ |
CompletionStage minimal = f.minimalCompletionStage(); |
4226 |
+ |
CompletableFuture<Integer> g = minimal.toCompletableFuture(); |
4227 |
+ |
assertTrue(g.complete(v1)); |
4228 |
+ |
checkCompletedNormally(g, v1); |
4229 |
+ |
checkIncomplete(f); |
4230 |
+ |
checkIncomplete(minimal.toCompletableFuture()); |
4231 |
+ |
}} |
4232 |
+ |
|
4233 |
+ |
/** |
4234 |
+ |
* minimalStage.toCompletableFuture().join() awaits completion |
4235 |
+ |
*/ |
4236 |
+ |
public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception { |
4237 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4238 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4239 |
+ |
{ |
4240 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4241 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4242 |
+ |
CompletionStage<Integer> minimal = f.minimalCompletionStage(); |
4243 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
4244 |
+ |
assertEquals(v1, minimal.toCompletableFuture().join()); |
4245 |
+ |
assertEquals(v1, minimal.toCompletableFuture().get()); |
4246 |
+ |
checkCompletedNormally(minimal.toCompletableFuture(), v1); |
4247 |
+ |
}} |
4248 |
+ |
|
4249 |
+ |
/** |
4250 |
+ |
* Completion of a toCompletableFuture copy of a minimal stage |
4251 |
+ |
* does not complete its source. |
4252 |
+ |
*/ |
4253 |
+ |
public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() { |
4254 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4255 |
+ |
CompletionStage<Integer> g = f.minimalCompletionStage(); |
4256 |
+ |
assertTrue(g.toCompletableFuture().complete(1)); |
4257 |
+ |
assertTrue(g.toCompletableFuture().complete(null)); |
4258 |
+ |
assertTrue(g.toCompletableFuture().cancel(true)); |
4259 |
+ |
assertTrue(g.toCompletableFuture().cancel(false)); |
4260 |
+ |
assertTrue(g.toCompletableFuture().completeExceptionally(new CFException())); |
4261 |
+ |
checkIncomplete(g.toCompletableFuture()); |
4262 |
+ |
f.complete(1); |
4263 |
+ |
checkCompletedNormally(g.toCompletableFuture(), 1); |
4264 |
+ |
} |
4265 |
+ |
|
4266 |
+ |
/** Demo utility method for external reliable toCompletableFuture */ |
4267 |
+ |
static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) { |
4268 |
+ |
CompletableFuture<T> f = new CompletableFuture<>(); |
4269 |
+ |
stage.handle((T t, Throwable ex) -> { |
4270 |
+ |
if (ex != null) f.completeExceptionally(ex); |
4271 |
+ |
else f.complete(t); |
4272 |
+ |
return null; |
4273 |
+ |
}); |
4274 |
+ |
return f; |
4275 |
+ |
} |
4276 |
+ |
|
4277 |
+ |
/** Demo utility method to join a CompletionStage */ |
4278 |
+ |
static <T> T join(CompletionStage<T> stage) { |
4279 |
+ |
return toCompletableFuture(stage).join(); |
4280 |
+ |
} |
4281 |
+ |
|
4282 |
+ |
/** |
4283 |
+ |
* Joining a minimal stage "by hand" works |
4284 |
+ |
*/ |
4285 |
+ |
public void testMinimalCompletionStage_join_by_hand() { |
4286 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4287 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4288 |
+ |
{ |
4289 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4290 |
+ |
CompletionStage<Integer> minimal = f.minimalCompletionStage(); |
4291 |
+ |
CompletableFuture<Integer> g = new CompletableFuture<>(); |
4292 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4293 |
+ |
minimal.thenAccept(x -> g.complete(x)); |
4294 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
4295 |
+ |
g.join(); |
4296 |
+ |
checkCompletedNormally(g, v1); |
4297 |
+ |
checkCompletedNormally(f, v1); |
4298 |
+ |
assertEquals(v1, join(minimal)); |
4299 |
+ |
}} |
4300 |
+ |
|
4301 |
+ |
static class Monad { |
4302 |
+ |
static class ZeroException extends RuntimeException { |
4303 |
+ |
public ZeroException() { super("monadic zero"); } |
4304 |
+ |
} |
4305 |
+ |
// "return", "unit" |
4306 |
+ |
static <T> CompletableFuture<T> unit(T value) { |
4307 |
+ |
return completedFuture(value); |
4308 |
+ |
} |
4309 |
+ |
// monadic zero ? |
4310 |
+ |
static <T> CompletableFuture<T> zero() { |
4311 |
+ |
return failedFuture(new ZeroException()); |
4312 |
+ |
} |
4313 |
+ |
// >=> |
4314 |
+ |
static <T,U,V> Function<T, CompletableFuture<V>> compose |
4315 |
+ |
(Function<T, CompletableFuture<U>> f, |
4316 |
+ |
Function<U, CompletableFuture<V>> g) { |
4317 |
+ |
return x -> f.apply(x).thenCompose(g); |
4318 |
+ |
} |
4319 |
+ |
|
4320 |
+ |
static void assertZero(CompletableFuture<?> f) { |
4321 |
+ |
try { |
4322 |
+ |
f.getNow(null); |
4323 |
+ |
throw new AssertionError("should throw"); |
4324 |
+ |
} catch (CompletionException success) { |
4325 |
+ |
assertTrue(success.getCause() instanceof ZeroException); |
4326 |
+ |
} |
4327 |
+ |
} |
4328 |
+ |
|
4329 |
+ |
static <T> void assertFutureEquals(CompletableFuture<T> f, |
4330 |
+ |
CompletableFuture<T> g) { |
4331 |
+ |
T fval = null, gval = null; |
4332 |
+ |
Throwable fex = null, gex = null; |
4333 |
+ |
|
4334 |
+ |
try { fval = f.get(); } |
4335 |
+ |
catch (ExecutionException ex) { fex = ex.getCause(); } |
4336 |
+ |
catch (Throwable ex) { fex = ex; } |
4337 |
+ |
|
4338 |
+ |
try { gval = g.get(); } |
4339 |
+ |
catch (ExecutionException ex) { gex = ex.getCause(); } |
4340 |
+ |
catch (Throwable ex) { gex = ex; } |
4341 |
+ |
|
4342 |
+ |
if (fex != null || gex != null) |
4343 |
+ |
assertSame(fex.getClass(), gex.getClass()); |
4344 |
+ |
else |
4345 |
+ |
assertEquals(fval, gval); |
4346 |
+ |
} |
4347 |
+ |
|
4348 |
+ |
static class PlusFuture<T> extends CompletableFuture<T> { |
4349 |
+ |
AtomicReference<Throwable> firstFailure = new AtomicReference<>(null); |
4350 |
+ |
} |
4351 |
+ |
|
4352 |
+ |
/** Implements "monadic plus". */ |
4353 |
+ |
static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f, |
4354 |
+ |
CompletableFuture<? extends T> g) { |
4355 |
+ |
PlusFuture<T> plus = new PlusFuture<T>(); |
4356 |
+ |
BiConsumer<T, Throwable> action = (T result, Throwable ex) -> { |
4357 |
+ |
try { |
4358 |
+ |
if (ex == null) { |
4359 |
+ |
if (plus.complete(result)) |
4360 |
+ |
if (plus.firstFailure.get() != null) |
4361 |
+ |
plus.firstFailure.set(null); |
4362 |
+ |
} |
4363 |
+ |
else if (plus.firstFailure.compareAndSet(null, ex)) { |
4364 |
+ |
if (plus.isDone()) |
4365 |
+ |
plus.firstFailure.set(null); |
4366 |
+ |
} |
4367 |
+ |
else { |
4368 |
+ |
// first failure has precedence |
4369 |
+ |
Throwable first = plus.firstFailure.getAndSet(null); |
4370 |
+ |
|
4371 |
+ |
// may fail with "Self-suppression not permitted" |
4372 |
+ |
try { first.addSuppressed(ex); } |
4373 |
+ |
catch (Exception ignored) {} |
4374 |
+ |
|
4375 |
+ |
plus.completeExceptionally(first); |
4376 |
+ |
} |
4377 |
+ |
} catch (Throwable unexpected) { |
4378 |
+ |
plus.completeExceptionally(unexpected); |
4379 |
+ |
} |
4380 |
+ |
}; |
4381 |
+ |
f.whenComplete(action); |
4382 |
+ |
g.whenComplete(action); |
4383 |
+ |
return plus; |
4384 |
+ |
} |
4385 |
+ |
} |
4386 |
+ |
|
4387 |
+ |
/** |
4388 |
+ |
* CompletableFuture is an additive monad - sort of. |
4389 |
+ |
* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads |
4390 |
+ |
*/ |
4391 |
+ |
public void testAdditiveMonad() throws Throwable { |
4392 |
+ |
Function<Long, CompletableFuture<Long>> unit = Monad::unit; |
4393 |
+ |
CompletableFuture<Long> zero = Monad.zero(); |
4394 |
+ |
|
4395 |
+ |
// Some mutually non-commutative functions |
4396 |
+ |
Function<Long, CompletableFuture<Long>> triple |
4397 |
+ |
= x -> Monad.unit(3 * x); |
4398 |
+ |
Function<Long, CompletableFuture<Long>> inc |
4399 |
+ |
= x -> Monad.unit(x + 1); |
4400 |
+ |
|
4401 |
+ |
// unit is a right identity: m >>= unit === m |
4402 |
+ |
Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit), |
4403 |
+ |
inc.apply(5L)); |
4404 |
+ |
// unit is a left identity: (unit x) >>= f === f x |
4405 |
+ |
Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc), |
4406 |
+ |
inc.apply(5L)); |
4407 |
+ |
|
4408 |
+ |
// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) ) |
4409 |
+ |
Monad.assertFutureEquals( |
4410 |
+ |
unit.apply(5L).thenCompose(inc).thenCompose(triple), |
4411 |
+ |
unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple))); |
4412 |
+ |
|
4413 |
+ |
// The case for CompletableFuture as an additive monad is weaker... |
4414 |
+ |
|
4415 |
+ |
// zero is a monadic zero |
4416 |
+ |
Monad.assertZero(zero); |
4417 |
+ |
|
4418 |
+ |
// left zero: zero >>= f === zero |
4419 |
+ |
Monad.assertZero(zero.thenCompose(inc)); |
4420 |
+ |
// right zero: f >>= (\x -> zero) === zero |
4421 |
+ |
Monad.assertZero(inc.apply(5L).thenCompose(x -> zero)); |
4422 |
+ |
|
4423 |
+ |
// f plus zero === f |
4424 |
+ |
Monad.assertFutureEquals(Monad.unit(5L), |
4425 |
+ |
Monad.plus(Monad.unit(5L), zero)); |
4426 |
+ |
// zero plus f === f |
4427 |
+ |
Monad.assertFutureEquals(Monad.unit(5L), |
4428 |
+ |
Monad.plus(zero, Monad.unit(5L))); |
4429 |
+ |
// zero plus zero === zero |
4430 |
+ |
Monad.assertZero(Monad.plus(zero, zero)); |
4431 |
+ |
{ |
4432 |
+ |
CompletableFuture<Long> f = Monad.plus(Monad.unit(5L), |
4433 |
+ |
Monad.unit(8L)); |
4434 |
+ |
// non-determinism |
4435 |
+ |
assertTrue(f.get() == 5L || f.get() == 8L); |
4436 |
+ |
} |
4437 |
+ |
|
4438 |
+ |
CompletableFuture<Long> godot = new CompletableFuture<>(); |
4439 |
+ |
// f plus godot === f (doesn't wait for godot) |
4440 |
+ |
Monad.assertFutureEquals(Monad.unit(5L), |
4441 |
+ |
Monad.plus(Monad.unit(5L), godot)); |
4442 |
+ |
// godot plus f === f (doesn't wait for godot) |
4443 |
+ |
Monad.assertFutureEquals(Monad.unit(5L), |
4444 |
+ |
Monad.plus(godot, Monad.unit(5L))); |
4445 |
+ |
} |
4446 |
+ |
|
4447 |
+ |
/** Test long recursive chains of CompletableFutures with cascading completions */ |
4448 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4449 |
+ |
public void testRecursiveChains() throws Throwable { |
4450 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
4451 |
+ |
for (boolean addDeadEnds : new boolean[] { true, false }) |
4452 |
+ |
{ |
4453 |
+ |
final int val = 42; |
4454 |
+ |
final int n = expensiveTests ? 1_000 : 2; |
4455 |
+ |
CompletableFuture<Integer> head = new CompletableFuture<>(); |
4456 |
+ |
CompletableFuture<Integer> tail = head; |
4457 |
+ |
for (int i = 0; i < n; i++) { |
4458 |
+ |
if (addDeadEnds) m.thenApply(tail, v -> v + 1); |
4459 |
+ |
tail = m.thenApply(tail, v -> v + 1); |
4460 |
+ |
if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1); |
4461 |
+ |
tail = m.applyToEither(tail, tail, v -> v + 1); |
4462 |
+ |
if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1); |
4463 |
+ |
tail = m.thenCombine(tail, tail, (v, w) -> v + 1); |
4464 |
+ |
} |
4465 |
+ |
head.complete(val); |
4466 |
+ |
assertEquals(val + 3 * n, (int) tail.join()); |
4467 |
+ |
}} |
4468 |
+ |
|
4469 |
+ |
/** |
4470 |
+ |
* A single CompletableFuture with many dependents. |
4471 |
+ |
* A demo of scalability - runtime is O(n). |
4472 |
+ |
*/ |
4473 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4474 |
+ |
public void testManyDependents() throws Throwable { |
4475 |
+ |
final int n = expensiveTests ? 1_000_000 : 10; |
4476 |
+ |
final CompletableFuture<Void> head = new CompletableFuture<>(); |
4477 |
+ |
final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null); |
4478 |
+ |
final AtomicInteger count = new AtomicInteger(0); |
4479 |
+ |
for (int i = 0; i < n; i++) { |
4480 |
+ |
head.thenRun(() -> count.getAndIncrement()); |
4481 |
+ |
head.thenAccept(x -> count.getAndIncrement()); |
4482 |
+ |
head.thenApply(x -> count.getAndIncrement()); |
4483 |
+ |
|
4484 |
+ |
head.runAfterBoth(complete, () -> count.getAndIncrement()); |
4485 |
+ |
head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement()); |
4486 |
+ |
head.thenCombine(complete, (x, y) -> count.getAndIncrement()); |
4487 |
+ |
complete.runAfterBoth(head, () -> count.getAndIncrement()); |
4488 |
+ |
complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement()); |
4489 |
+ |
complete.thenCombine(head, (x, y) -> count.getAndIncrement()); |
4490 |
+ |
|
4491 |
+ |
head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement()); |
4492 |
+ |
head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement()); |
4493 |
+ |
head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement()); |
4494 |
+ |
new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement()); |
4495 |
+ |
new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement()); |
4496 |
+ |
new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement()); |
4497 |
+ |
} |
4498 |
+ |
head.complete(null); |
4499 |
+ |
assertEquals(5 * 3 * n, count.get()); |
4500 |
+ |
} |
4501 |
+ |
|
4502 |
+ |
/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */ |
4503 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4504 |
+ |
public void testCoCompletionGarbageRetention() throws Throwable { |
4505 |
+ |
final int n = expensiveTests ? 1_000_000 : 10; |
4506 |
+ |
final CompletableFuture<Integer> incomplete = new CompletableFuture<>(); |
4507 |
+ |
CompletableFuture<Integer> f; |
4508 |
+ |
for (int i = 0; i < n; i++) { |
4509 |
+ |
f = new CompletableFuture<>(); |
4510 |
+ |
f.runAfterEither(incomplete, () -> {}); |
4511 |
+ |
f.complete(null); |
4512 |
+ |
|
4513 |
+ |
f = new CompletableFuture<>(); |
4514 |
+ |
f.acceptEither(incomplete, x -> {}); |
4515 |
+ |
f.complete(null); |
4516 |
+ |
|
4517 |
+ |
f = new CompletableFuture<>(); |
4518 |
+ |
f.applyToEither(incomplete, x -> x); |
4519 |
+ |
f.complete(null); |
4520 |
+ |
|
4521 |
+ |
f = new CompletableFuture<>(); |
4522 |
+ |
CompletableFuture.anyOf(f, incomplete); |
4523 |
+ |
f.complete(null); |
4524 |
+ |
} |
4525 |
+ |
|
4526 |
+ |
for (int i = 0; i < n; i++) { |
4527 |
+ |
f = new CompletableFuture<>(); |
4528 |
+ |
incomplete.runAfterEither(f, () -> {}); |
4529 |
+ |
f.complete(null); |
4530 |
+ |
|
4531 |
+ |
f = new CompletableFuture<>(); |
4532 |
+ |
incomplete.acceptEither(f, x -> {}); |
4533 |
+ |
f.complete(null); |
4534 |
+ |
|
4535 |
+ |
f = new CompletableFuture<>(); |
4536 |
+ |
incomplete.applyToEither(f, x -> x); |
4537 |
+ |
f.complete(null); |
4538 |
+ |
|
4539 |
+ |
f = new CompletableFuture<>(); |
4540 |
+ |
CompletableFuture.anyOf(incomplete, f); |
4541 |
+ |
f.complete(null); |
4542 |
+ |
} |
4543 |
+ |
} |
4544 |
+ |
|
4545 |
+ |
/** |
4546 |
+ |
* Reproduction recipe for: |
4547 |
+ |
* 8160402: Garbage retention with CompletableFuture.anyOf |
4548 |
+ |
* cvs update -D '2016-05-01' ./src/main/java/util/concurrent/CompletableFuture.java && ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testAnyOfGarbageRetention tck; cvs update -A |
4549 |
+ |
*/ |
4550 |
+ |
public void testAnyOfGarbageRetention() throws Throwable { |
4551 |
+ |
for (Integer v : new Integer[] { 1, null }) |
4552 |
+ |
{ |
4553 |
+ |
final int n = expensiveTests ? 100_000 : 10; |
4554 |
+ |
CompletableFuture<Integer>[] fs |
4555 |
+ |
= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100]; |
4556 |
+ |
for (int i = 0; i < fs.length; i++) |
4557 |
+ |
fs[i] = new CompletableFuture<>(); |
4558 |
+ |
fs[fs.length - 1].complete(v); |
4559 |
+ |
for (int i = 0; i < n; i++) |
4560 |
+ |
checkCompletedNormally(CompletableFuture.anyOf(fs), v); |
4561 |
+ |
}} |
4562 |
+ |
|
4563 |
+ |
/** |
4564 |
+ |
* Checks for garbage retention with allOf. |
4565 |
+ |
* |
4566 |
+ |
* As of 2016-07, fails with OOME: |
4567 |
+ |
* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck |
4568 |
+ |
*/ |
4569 |
+ |
public void testCancelledAllOfGarbageRetention() throws Throwable { |
4570 |
+ |
final int n = expensiveTests ? 100_000 : 10; |
4571 |
+ |
CompletableFuture<Integer>[] fs |
4572 |
+ |
= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100]; |
4573 |
+ |
for (int i = 0; i < fs.length; i++) |
4574 |
+ |
fs[i] = new CompletableFuture<>(); |
4575 |
+ |
for (int i = 0; i < n; i++) |
4576 |
+ |
assertTrue(CompletableFuture.allOf(fs).cancel(false)); |
4577 |
+ |
} |
4578 |
+ |
|
4579 |
+ |
/** |
4580 |
+ |
* Checks for garbage retention when a dependent future is |
4581 |
+ |
* cancelled and garbage-collected. |
4582 |
+ |
* 8161600: Garbage retention when source CompletableFutures are never completed |
4583 |
+ |
* |
4584 |
+ |
* As of 2016-07, fails with OOME: |
4585 |
+ |
* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck |
4586 |
+ |
*/ |
4587 |
+ |
public void testCancelledGarbageRetention() throws Throwable { |
4588 |
+ |
final int n = expensiveTests ? 100_000 : 10; |
4589 |
+ |
CompletableFuture<Integer> neverCompleted = new CompletableFuture<>(); |
4590 |
+ |
for (int i = 0; i < n; i++) |
4591 |
+ |
assertTrue(neverCompleted.thenRun(() -> {}).cancel(true)); |
4592 |
+ |
} |
4593 |
+ |
|
4594 |
+ |
/** |
4595 |
+ |
* Checks for garbage retention when MinimalStage.toCompletableFuture() |
4596 |
+ |
* is invoked many times. |
4597 |
+ |
* 8161600: Garbage retention when source CompletableFutures are never completed |
4598 |
+ |
* |
4599 |
+ |
* As of 2016-07, fails with OOME: |
4600 |
+ |
* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck |
4601 |
+ |
*/ |
4602 |
+ |
public void testToCompletableFutureGarbageRetention() throws Throwable { |
4603 |
+ |
final int n = expensiveTests ? 900_000 : 10; |
4604 |
+ |
CompletableFuture<Integer> neverCompleted = new CompletableFuture<>(); |
4605 |
+ |
CompletionStage minimal = neverCompleted.minimalCompletionStage(); |
4606 |
+ |
for (int i = 0; i < n; i++) |
4607 |
+ |
assertTrue(minimal.toCompletableFuture().cancel(true)); |
4608 |
+ |
} |
4609 |
+ |
|
4610 |
+ |
// static <U> U join(CompletionStage<U> stage) { |
4611 |
+ |
// CompletableFuture<U> f = new CompletableFuture<>(); |
4612 |
+ |
// stage.whenComplete((v, ex) -> { |
4613 |
+ |
// if (ex != null) f.completeExceptionally(ex); else f.complete(v); |
4614 |
+ |
// }); |
4615 |
+ |
// return f.join(); |
4616 |
+ |
// } |
4617 |
+ |
|
4618 |
+ |
// static <U> boolean isDone(CompletionStage<U> stage) { |
4619 |
+ |
// CompletableFuture<U> f = new CompletableFuture<>(); |
4620 |
+ |
// stage.whenComplete((v, ex) -> { |
4621 |
+ |
// if (ex != null) f.completeExceptionally(ex); else f.complete(v); |
4622 |
+ |
// }); |
4623 |
+ |
// return f.isDone(); |
4624 |
+ |
// } |
4625 |
+ |
|
4626 |
+ |
// static <U> U join2(CompletionStage<U> stage) { |
4627 |
+ |
// return stage.toCompletableFuture().copy().join(); |
4628 |
+ |
// } |
4629 |
+ |
|
4630 |
+ |
// static <U> boolean isDone2(CompletionStage<U> stage) { |
4631 |
+ |
// return stage.toCompletableFuture().copy().isDone(); |
4632 |
+ |
// } |
4633 |
+ |
|
4634 |
+ |
// For testing default implementations |
4635 |
+ |
// Only non-default interface methods defined. |
4636 |
+ |
static final class DelegatedCompletionStage<T> implements CompletionStage<T> { |
4637 |
+ |
final CompletableFuture<T> cf; |
4638 |
+ |
DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; } |
4639 |
+ |
public CompletableFuture<T> toCompletableFuture() { |
4640 |
+ |
return cf; } |
4641 |
+ |
public CompletionStage<Void> thenRun |
4642 |
+ |
(Runnable action) { |
4643 |
+ |
return cf.thenRun(action); } |
4644 |
+ |
public CompletionStage<Void> thenRunAsync |
4645 |
+ |
(Runnable action) { |
4646 |
+ |
return cf.thenRunAsync(action); } |
4647 |
+ |
public CompletionStage<Void> thenRunAsync |
4648 |
+ |
(Runnable action, |
4649 |
+ |
Executor executor) { |
4650 |
+ |
return cf.thenRunAsync(action, executor); } |
4651 |
+ |
public CompletionStage<Void> thenAccept |
4652 |
+ |
(Consumer<? super T> action) { |
4653 |
+ |
return cf.thenAccept(action); } |
4654 |
+ |
public CompletionStage<Void> thenAcceptAsync |
4655 |
+ |
(Consumer<? super T> action) { |
4656 |
+ |
return cf.thenAcceptAsync(action); } |
4657 |
+ |
public CompletionStage<Void> thenAcceptAsync |
4658 |
+ |
(Consumer<? super T> action, |
4659 |
+ |
Executor executor) { |
4660 |
+ |
return cf.thenAcceptAsync(action, executor); } |
4661 |
+ |
public <U> CompletionStage<U> thenApply |
4662 |
+ |
(Function<? super T,? extends U> a) { |
4663 |
+ |
return cf.thenApply(a); } |
4664 |
+ |
public <U> CompletionStage<U> thenApplyAsync |
4665 |
+ |
(Function<? super T,? extends U> fn) { |
4666 |
+ |
return cf.thenApplyAsync(fn); } |
4667 |
+ |
public <U> CompletionStage<U> thenApplyAsync |
4668 |
+ |
(Function<? super T,? extends U> fn, |
4669 |
+ |
Executor executor) { |
4670 |
+ |
return cf.thenApplyAsync(fn, executor); } |
4671 |
+ |
public <U,V> CompletionStage<V> thenCombine |
4672 |
+ |
(CompletionStage<? extends U> other, |
4673 |
+ |
BiFunction<? super T,? super U,? extends V> fn) { |
4674 |
+ |
return cf.thenCombine(other, fn); } |
4675 |
+ |
public <U,V> CompletionStage<V> thenCombineAsync |
4676 |
+ |
(CompletionStage<? extends U> other, |
4677 |
+ |
BiFunction<? super T,? super U,? extends V> fn) { |
4678 |
+ |
return cf.thenCombineAsync(other, fn); } |
4679 |
+ |
public <U,V> CompletionStage<V> thenCombineAsync |
4680 |
+ |
(CompletionStage<? extends U> other, |
4681 |
+ |
BiFunction<? super T,? super U,? extends V> fn, |
4682 |
+ |
Executor executor) { |
4683 |
+ |
return cf.thenCombineAsync(other, fn, executor); } |
4684 |
+ |
public <U> CompletionStage<Void> thenAcceptBoth |
4685 |
+ |
(CompletionStage<? extends U> other, |
4686 |
+ |
BiConsumer<? super T, ? super U> action) { |
4687 |
+ |
return cf.thenAcceptBoth(other, action); } |
4688 |
+ |
public <U> CompletionStage<Void> thenAcceptBothAsync |
4689 |
+ |
(CompletionStage<? extends U> other, |
4690 |
+ |
BiConsumer<? super T, ? super U> action) { |
4691 |
+ |
return cf.thenAcceptBothAsync(other, action); } |
4692 |
+ |
public <U> CompletionStage<Void> thenAcceptBothAsync |
4693 |
+ |
(CompletionStage<? extends U> other, |
4694 |
+ |
BiConsumer<? super T, ? super U> action, |
4695 |
+ |
Executor executor) { |
4696 |
+ |
return cf.thenAcceptBothAsync(other, action, executor); } |
4697 |
+ |
public CompletionStage<Void> runAfterBoth |
4698 |
+ |
(CompletionStage<?> other, |
4699 |
+ |
Runnable action) { |
4700 |
+ |
return cf.runAfterBoth(other, action); } |
4701 |
+ |
public CompletionStage<Void> runAfterBothAsync |
4702 |
+ |
(CompletionStage<?> other, |
4703 |
+ |
Runnable action) { |
4704 |
+ |
return cf.runAfterBothAsync(other, action); } |
4705 |
+ |
public CompletionStage<Void> runAfterBothAsync |
4706 |
+ |
(CompletionStage<?> other, |
4707 |
+ |
Runnable action, |
4708 |
+ |
Executor executor) { |
4709 |
+ |
return cf.runAfterBothAsync(other, action, executor); } |
4710 |
+ |
public <U> CompletionStage<U> applyToEither |
4711 |
+ |
(CompletionStage<? extends T> other, |
4712 |
+ |
Function<? super T, U> fn) { |
4713 |
+ |
return cf.applyToEither(other, fn); } |
4714 |
+ |
public <U> CompletionStage<U> applyToEitherAsync |
4715 |
+ |
(CompletionStage<? extends T> other, |
4716 |
+ |
Function<? super T, U> fn) { |
4717 |
+ |
return cf.applyToEitherAsync(other, fn); } |
4718 |
+ |
public <U> CompletionStage<U> applyToEitherAsync |
4719 |
+ |
(CompletionStage<? extends T> other, |
4720 |
+ |
Function<? super T, U> fn, |
4721 |
+ |
Executor executor) { |
4722 |
+ |
return cf.applyToEitherAsync(other, fn, executor); } |
4723 |
+ |
public CompletionStage<Void> acceptEither |
4724 |
+ |
(CompletionStage<? extends T> other, |
4725 |
+ |
Consumer<? super T> action) { |
4726 |
+ |
return cf.acceptEither(other, action); } |
4727 |
+ |
public CompletionStage<Void> acceptEitherAsync |
4728 |
+ |
(CompletionStage<? extends T> other, |
4729 |
+ |
Consumer<? super T> action) { |
4730 |
+ |
return cf.acceptEitherAsync(other, action); } |
4731 |
+ |
public CompletionStage<Void> acceptEitherAsync |
4732 |
+ |
(CompletionStage<? extends T> other, |
4733 |
+ |
Consumer<? super T> action, |
4734 |
+ |
Executor executor) { |
4735 |
+ |
return cf.acceptEitherAsync(other, action, executor); } |
4736 |
+ |
public CompletionStage<Void> runAfterEither |
4737 |
+ |
(CompletionStage<?> other, |
4738 |
+ |
Runnable action) { |
4739 |
+ |
return cf.runAfterEither(other, action); } |
4740 |
+ |
public CompletionStage<Void> runAfterEitherAsync |
4741 |
+ |
(CompletionStage<?> other, |
4742 |
+ |
Runnable action) { |
4743 |
+ |
return cf.runAfterEitherAsync(other, action); } |
4744 |
+ |
public CompletionStage<Void> runAfterEitherAsync |
4745 |
+ |
(CompletionStage<?> other, |
4746 |
+ |
Runnable action, |
4747 |
+ |
Executor executor) { |
4748 |
+ |
return cf.runAfterEitherAsync(other, action, executor); } |
4749 |
+ |
public <U> CompletionStage<U> thenCompose |
4750 |
+ |
(Function<? super T, ? extends CompletionStage<U>> fn) { |
4751 |
+ |
return cf.thenCompose(fn); } |
4752 |
+ |
public <U> CompletionStage<U> thenComposeAsync |
4753 |
+ |
(Function<? super T, ? extends CompletionStage<U>> fn) { |
4754 |
+ |
return cf.thenComposeAsync(fn); } |
4755 |
+ |
public <U> CompletionStage<U> thenComposeAsync |
4756 |
+ |
(Function<? super T, ? extends CompletionStage<U>> fn, |
4757 |
+ |
Executor executor) { |
4758 |
+ |
return cf.thenComposeAsync(fn, executor); } |
4759 |
+ |
public <U> CompletionStage<U> handle |
4760 |
+ |
(BiFunction<? super T, Throwable, ? extends U> fn) { |
4761 |
+ |
return cf.handle(fn); } |
4762 |
+ |
public <U> CompletionStage<U> handleAsync |
4763 |
+ |
(BiFunction<? super T, Throwable, ? extends U> fn) { |
4764 |
+ |
return cf.handleAsync(fn); } |
4765 |
+ |
public <U> CompletionStage<U> handleAsync |
4766 |
+ |
(BiFunction<? super T, Throwable, ? extends U> fn, |
4767 |
+ |
Executor executor) { |
4768 |
+ |
return cf.handleAsync(fn, executor); } |
4769 |
+ |
public CompletionStage<T> whenComplete |
4770 |
+ |
(BiConsumer<? super T, ? super Throwable> action) { |
4771 |
+ |
return cf.whenComplete(action); } |
4772 |
+ |
public CompletionStage<T> whenCompleteAsync |
4773 |
+ |
(BiConsumer<? super T, ? super Throwable> action) { |
4774 |
+ |
return cf.whenCompleteAsync(action); } |
4775 |
+ |
public CompletionStage<T> whenCompleteAsync |
4776 |
+ |
(BiConsumer<? super T, ? super Throwable> action, |
4777 |
+ |
Executor executor) { |
4778 |
+ |
return cf.whenCompleteAsync(action, executor); } |
4779 |
+ |
public CompletionStage<T> exceptionally |
4780 |
+ |
(Function<Throwable, ? extends T> fn) { |
4781 |
+ |
return cf.exceptionally(fn); } |
4782 |
+ |
} |
4783 |
+ |
|
4784 |
+ |
/** |
4785 |
+ |
* default-implemented exceptionallyAsync action completes with |
4786 |
+ |
* function value on source exception |
4787 |
+ |
*/ |
4788 |
+ |
public void testDefaulExceptionallyAsync_exceptionalCompletion() { |
4789 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4790 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4791 |
+ |
{ |
4792 |
+ |
final AtomicInteger a = new AtomicInteger(0); |
4793 |
+ |
final CFException ex = new CFException(); |
4794 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4795 |
+ |
final DelegatedCompletionStage<Integer> d = |
4796 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4797 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
4798 |
+ |
final CompletionStage<Integer> g = d.exceptionallyAsync |
4799 |
+ |
((Throwable t) -> { |
4800 |
+ |
threadAssertSame(t, ex); |
4801 |
+ |
a.getAndIncrement(); |
4802 |
+ |
return v1; |
4803 |
+ |
}); |
4804 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
4805 |
+ |
|
4806 |
+ |
checkCompletedNormally(g.toCompletableFuture(), v1); |
4807 |
+ |
assertEquals(1, a.get()); |
4808 |
+ |
}} |
4809 |
+ |
|
4810 |
+ |
/** |
4811 |
+ |
* Under default implementation, if an "exceptionally action" |
4812 |
+ |
* throws an exception, it completes exceptionally with that |
4813 |
+ |
* exception |
4814 |
+ |
*/ |
4815 |
+ |
public void testDefaulExceptionallyAsync_exceptionalCompletionActionFailed() { |
4816 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4817 |
+ |
{ |
4818 |
+ |
final AtomicInteger a = new AtomicInteger(0); |
4819 |
+ |
final CFException ex1 = new CFException(); |
4820 |
+ |
final CFException ex2 = new CFException(); |
4821 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4822 |
+ |
final DelegatedCompletionStage<Integer> d = |
4823 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4824 |
+ |
if (!createIncomplete) f.completeExceptionally(ex1); |
4825 |
+ |
final CompletionStage<Integer> g = d.exceptionallyAsync |
4826 |
+ |
((Throwable t) -> { |
4827 |
+ |
threadAssertSame(t, ex1); |
4828 |
+ |
a.getAndIncrement(); |
4829 |
+ |
throw ex2; |
4830 |
+ |
}); |
4831 |
+ |
if (createIncomplete) f.completeExceptionally(ex1); |
4832 |
+ |
|
4833 |
+ |
checkCompletedWithWrappedException(g.toCompletableFuture(), ex2); |
4834 |
+ |
checkCompletedExceptionally(f, ex1); |
4835 |
+ |
checkCompletedExceptionally(d.toCompletableFuture(), ex1); |
4836 |
+ |
assertEquals(1, a.get()); |
4837 |
+ |
}} |
4838 |
+ |
|
4839 |
+ |
/** |
4840 |
+ |
* default exceptionallyCompose result completes normally after normal |
4841 |
+ |
* completion of source |
4842 |
+ |
*/ |
4843 |
+ |
public void testDefaultExceptionallyCompose_normalCompletion() { |
4844 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4845 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4846 |
+ |
{ |
4847 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4848 |
+ |
final ExceptionalCompletableFutureFunction r = |
4849 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC); |
4850 |
+ |
final DelegatedCompletionStage<Integer> d = |
4851 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4852 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4853 |
+ |
final CompletionStage<Integer> g = d.exceptionallyCompose(r); |
4854 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
4855 |
+ |
|
4856 |
+ |
checkCompletedNormally(f, v1); |
4857 |
+ |
checkCompletedNormally(g.toCompletableFuture(), v1); |
4858 |
+ |
r.assertNotInvoked(); |
4859 |
+ |
}} |
4860 |
+ |
|
4861 |
+ |
/** |
4862 |
+ |
* default-implemented exceptionallyCompose result completes |
4863 |
+ |
* normally after exceptional completion of source |
4864 |
+ |
*/ |
4865 |
+ |
public void testDefaultExceptionallyCompose_exceptionalCompletion() { |
4866 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4867 |
+ |
{ |
4868 |
+ |
final CFException ex = new CFException(); |
4869 |
+ |
final ExceptionalCompletableFutureFunction r = |
4870 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC); |
4871 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4872 |
+ |
final DelegatedCompletionStage<Integer> d = |
4873 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4874 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
4875 |
+ |
final CompletionStage<Integer> g = d.exceptionallyCompose(r); |
4876 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
4877 |
+ |
|
4878 |
+ |
checkCompletedExceptionally(f, ex); |
4879 |
+ |
checkCompletedNormally(g.toCompletableFuture(), r.value); |
4880 |
+ |
r.assertInvoked(); |
4881 |
+ |
}} |
4882 |
+ |
|
4883 |
+ |
/** |
4884 |
+ |
* default-implemented exceptionallyCompose completes |
4885 |
+ |
* exceptionally on exception if action does |
4886 |
+ |
*/ |
4887 |
+ |
public void testDefaultExceptionallyCompose_actionFailed() { |
4888 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4889 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4890 |
+ |
{ |
4891 |
+ |
final CFException ex = new CFException(); |
4892 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4893 |
+ |
final FailingExceptionalCompletableFutureFunction r |
4894 |
+ |
= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC); |
4895 |
+ |
final DelegatedCompletionStage<Integer> d = |
4896 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4897 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
4898 |
+ |
final CompletionStage<Integer> g = d.exceptionallyCompose(r); |
4899 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
4900 |
+ |
|
4901 |
+ |
checkCompletedExceptionally(f, ex); |
4902 |
+ |
checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex); |
4903 |
+ |
r.assertInvoked(); |
4904 |
+ |
}} |
4905 |
+ |
|
4906 |
+ |
/** |
4907 |
+ |
* default exceptionallyComposeAsync result completes normally after normal |
4908 |
+ |
* completion of source |
4909 |
+ |
*/ |
4910 |
+ |
public void testDefaultExceptionallyComposeAsync_normalCompletion() { |
4911 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4912 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4913 |
+ |
{ |
4914 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4915 |
+ |
final ExceptionalCompletableFutureFunction r = |
4916 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC); |
4917 |
+ |
final DelegatedCompletionStage<Integer> d = |
4918 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4919 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4920 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r); |
4921 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
4922 |
+ |
|
4923 |
+ |
checkCompletedNormally(f, v1); |
4924 |
+ |
checkCompletedNormally(g.toCompletableFuture(), v1); |
4925 |
+ |
r.assertNotInvoked(); |
4926 |
+ |
}} |
4927 |
+ |
|
4928 |
+ |
/** |
4929 |
+ |
* default-implemented exceptionallyComposeAsync result completes |
4930 |
+ |
* normally after exceptional completion of source |
4931 |
+ |
*/ |
4932 |
+ |
public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() { |
4933 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4934 |
+ |
{ |
4935 |
+ |
final CFException ex = new CFException(); |
4936 |
+ |
final ExceptionalCompletableFutureFunction r = |
4937 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC); |
4938 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4939 |
+ |
final DelegatedCompletionStage<Integer> d = |
4940 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4941 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
4942 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r); |
4943 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
4944 |
+ |
|
4945 |
+ |
checkCompletedExceptionally(f, ex); |
4946 |
+ |
checkCompletedNormally(g.toCompletableFuture(), r.value); |
4947 |
+ |
r.assertInvoked(); |
4948 |
+ |
}} |
4949 |
+ |
|
4950 |
+ |
/** |
4951 |
+ |
* default-implemented exceptionallyComposeAsync completes |
4952 |
+ |
* exceptionally on exception if action does |
4953 |
+ |
*/ |
4954 |
+ |
public void testDefaultExceptionallyComposeAsync_actionFailed() { |
4955 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4956 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4957 |
+ |
{ |
4958 |
+ |
final CFException ex = new CFException(); |
4959 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4960 |
+ |
final FailingExceptionalCompletableFutureFunction r |
4961 |
+ |
= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC); |
4962 |
+ |
final DelegatedCompletionStage<Integer> d = |
4963 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4964 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
4965 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r); |
4966 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
4967 |
+ |
|
4968 |
+ |
checkCompletedExceptionally(f, ex); |
4969 |
+ |
checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex); |
4970 |
+ |
r.assertInvoked(); |
4971 |
+ |
}} |
4972 |
+ |
|
4973 |
+ |
|
4974 |
+ |
/** |
4975 |
+ |
* default exceptionallyComposeAsync result completes normally after normal |
4976 |
+ |
* completion of source |
4977 |
+ |
*/ |
4978 |
+ |
public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() { |
4979 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4980 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4981 |
+ |
{ |
4982 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4983 |
+ |
final ExceptionalCompletableFutureFunction r = |
4984 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR); |
4985 |
+ |
final DelegatedCompletionStage<Integer> d = |
4986 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4987 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4988 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor()); |
4989 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
4990 |
+ |
|
4991 |
+ |
checkCompletedNormally(f, v1); |
4992 |
+ |
checkCompletedNormally(g.toCompletableFuture(), v1); |
4993 |
+ |
r.assertNotInvoked(); |
4994 |
+ |
}} |
4995 |
+ |
|
4996 |
+ |
/** |
4997 |
+ |
* default-implemented exceptionallyComposeAsync result completes |
4998 |
+ |
* normally after exceptional completion of source |
4999 |
+ |
*/ |
5000 |
+ |
public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() { |
5001 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
5002 |
+ |
{ |
5003 |
+ |
final CFException ex = new CFException(); |
5004 |
+ |
final ExceptionalCompletableFutureFunction r = |
5005 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR); |
5006 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
5007 |
+ |
final DelegatedCompletionStage<Integer> d = |
5008 |
+ |
new DelegatedCompletionStage<Integer>(f); |
5009 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
5010 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor()); |
5011 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
5012 |
+ |
|
5013 |
+ |
checkCompletedExceptionally(f, ex); |
5014 |
+ |
checkCompletedNormally(g.toCompletableFuture(), r.value); |
5015 |
+ |
r.assertInvoked(); |
5016 |
+ |
}} |
5017 |
+ |
|
5018 |
+ |
/** |
5019 |
+ |
* default-implemented exceptionallyComposeAsync completes |
5020 |
+ |
* exceptionally on exception if action does |
5021 |
+ |
*/ |
5022 |
+ |
public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() { |
5023 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
5024 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
5025 |
+ |
{ |
5026 |
+ |
final CFException ex = new CFException(); |
5027 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
5028 |
+ |
final FailingExceptionalCompletableFutureFunction r |
5029 |
+ |
= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR); |
5030 |
+ |
final DelegatedCompletionStage<Integer> d = |
5031 |
+ |
new DelegatedCompletionStage<Integer>(f); |
5032 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
5033 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor()); |
5034 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
5035 |
+ |
|
5036 |
+ |
checkCompletedExceptionally(f, ex); |
5037 |
+ |
checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex); |
5038 |
+ |
r.assertInvoked(); |
5039 |
+ |
}} |
5040 |
+ |
|
5041 |
|
} |