41 |
|
import java.util.function.Predicate; |
42 |
|
import java.util.function.Supplier; |
43 |
|
|
44 |
– |
import junit.framework.AssertionFailedError; |
44 |
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import junit.framework.Test; |
45 |
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import junit.framework.TestSuite; |
46 |
|
|
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()); |
79 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
80 |
< |
try { |
81 |
< |
assertEquals(value, f.getNow(null)); |
82 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
83 |
< |
try { |
84 |
< |
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 |
|
/** |
145 |
|
assertFalse(f.isCancelled()); |
146 |
|
assertTrue(f.isDone()); |
147 |
|
assertTrue(f.isCompletedExceptionally()); |
148 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
148 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
149 |
|
} |
150 |
|
|
151 |
|
void checkCompletedWithWrappedCFException(CompletableFuture<?> f) { |
200 |
|
assertTrue(f.isDone()); |
201 |
|
assertTrue(f.isCompletedExceptionally()); |
202 |
|
assertTrue(f.isCancelled()); |
203 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
203 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
204 |
|
} |
205 |
|
|
206 |
|
/** |
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 |
|
|
1262 |
|
r.assertInvoked(); |
1263 |
|
}} |
1264 |
|
|
1265 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
1266 |
|
public void testRunAsync_rejectingExecutor() { |
1267 |
|
CountingRejectingExecutor e = new CountingRejectingExecutor(); |
1268 |
|
try { |
1309 |
|
r.assertInvoked(); |
1310 |
|
}} |
1311 |
|
|
1312 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
1313 |
|
public void testSupplyAsync_rejectingExecutor() { |
1314 |
|
CountingRejectingExecutor e = new CountingRejectingExecutor(); |
1315 |
|
try { |
2584 |
|
|
2585 |
|
// unspecified behavior - both source completions available |
2586 |
|
try { |
2587 |
< |
assertEquals(null, h0.join()); |
2587 |
> |
assertNull(h0.join()); |
2588 |
|
rs[0].assertValue(v1); |
2589 |
|
} catch (CompletionException ok) { |
2590 |
|
checkCompletedWithWrappedException(h0, ex); |
2591 |
|
rs[0].assertNotInvoked(); |
2592 |
|
} |
2593 |
|
try { |
2594 |
< |
assertEquals(null, h1.join()); |
2594 |
> |
assertNull(h1.join()); |
2595 |
|
rs[1].assertValue(v1); |
2596 |
|
} catch (CompletionException ok) { |
2597 |
|
checkCompletedWithWrappedException(h1, ex); |
2598 |
|
rs[1].assertNotInvoked(); |
2599 |
|
} |
2600 |
|
try { |
2601 |
< |
assertEquals(null, h2.join()); |
2601 |
> |
assertNull(h2.join()); |
2602 |
|
rs[2].assertValue(v1); |
2603 |
|
} catch (CompletionException ok) { |
2604 |
|
checkCompletedWithWrappedException(h2, ex); |
2605 |
|
rs[2].assertNotInvoked(); |
2606 |
|
} |
2607 |
|
try { |
2608 |
< |
assertEquals(null, h3.join()); |
2608 |
> |
assertNull(h3.join()); |
2609 |
|
rs[3].assertValue(v1); |
2610 |
|
} catch (CompletionException ok) { |
2611 |
|
checkCompletedWithWrappedException(h3, ex); |
2844 |
|
|
2845 |
|
// unspecified behavior - both source completions available |
2846 |
|
try { |
2847 |
< |
assertEquals(null, h0.join()); |
2847 |
> |
assertNull(h0.join()); |
2848 |
|
rs[0].assertInvoked(); |
2849 |
|
} catch (CompletionException ok) { |
2850 |
|
checkCompletedWithWrappedException(h0, ex); |
2851 |
|
rs[0].assertNotInvoked(); |
2852 |
|
} |
2853 |
|
try { |
2854 |
< |
assertEquals(null, h1.join()); |
2854 |
> |
assertNull(h1.join()); |
2855 |
|
rs[1].assertInvoked(); |
2856 |
|
} catch (CompletionException ok) { |
2857 |
|
checkCompletedWithWrappedException(h1, ex); |
2858 |
|
rs[1].assertNotInvoked(); |
2859 |
|
} |
2860 |
|
try { |
2861 |
< |
assertEquals(null, h2.join()); |
2861 |
> |
assertNull(h2.join()); |
2862 |
|
rs[2].assertInvoked(); |
2863 |
|
} catch (CompletionException ok) { |
2864 |
|
checkCompletedWithWrappedException(h2, ex); |
2865 |
|
rs[2].assertNotInvoked(); |
2866 |
|
} |
2867 |
|
try { |
2868 |
< |
assertEquals(null, h3.join()); |
2868 |
> |
assertNull(h3.join()); |
2869 |
|
rs[3].assertInvoked(); |
2870 |
|
} catch (CompletionException ok) { |
2871 |
|
checkCompletedWithWrappedException(h3, ex); |
3260 |
|
/** |
3261 |
|
* Completion methods throw NullPointerException with null arguments |
3262 |
|
*/ |
3263 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
3264 |
|
public void testNPE() { |
3265 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3266 |
|
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3555 |
|
*/ |
3556 |
|
public void testCompletedStage() { |
3557 |
|
AtomicInteger x = new AtomicInteger(0); |
3558 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3558 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3559 |
|
CompletionStage<Integer> f = CompletableFuture.completedStage(1); |
3560 |
|
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3561 |
|
assertEquals(x.get(), 1); |
3657 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3658 |
|
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3659 |
|
AtomicInteger x = new AtomicInteger(0); |
3660 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3660 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3661 |
|
checkIncomplete(f); |
3662 |
|
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3663 |
|
f.complete(1); |
3674 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3675 |
|
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3676 |
|
AtomicInteger x = new AtomicInteger(0); |
3677 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3677 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3678 |
|
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3679 |
|
checkIncomplete(f); |
3680 |
|
CFException ex = new CFException(); |
3692 |
|
CFException ex = new CFException(); |
3693 |
|
CompletionStage<Integer> f = CompletableFuture.failedStage(ex); |
3694 |
|
AtomicInteger x = new AtomicInteger(0); |
3695 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3695 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3696 |
|
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3697 |
|
assertEquals(x.get(), 0); |
3698 |
|
assertEquals(r.get(), ex); |
4197 |
|
static void assertZero(CompletableFuture<?> f) { |
4198 |
|
try { |
4199 |
|
f.getNow(null); |
4200 |
< |
throw new AssertionFailedError("should throw"); |
4200 |
> |
throw new AssertionError("should throw"); |
4201 |
|
} catch (CompletionException success) { |
4202 |
|
assertTrue(success.getCause() instanceof ZeroException); |
4203 |
|
} |
4322 |
|
} |
4323 |
|
|
4324 |
|
/** Test long recursive chains of CompletableFutures with cascading completions */ |
4325 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4326 |
|
public void testRecursiveChains() throws Throwable { |
4327 |
|
for (ExecutionMode m : ExecutionMode.values()) |
4328 |
|
for (boolean addDeadEnds : new boolean[] { true, false }) |
4347 |
|
* A single CompletableFuture with many dependents. |
4348 |
|
* A demo of scalability - runtime is O(n). |
4349 |
|
*/ |
4350 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4351 |
|
public void testManyDependents() throws Throwable { |
4352 |
|
final int n = expensiveTests ? 1_000_000 : 10; |
4353 |
|
final CompletableFuture<Void> head = new CompletableFuture<>(); |
4377 |
|
} |
4378 |
|
|
4379 |
|
/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */ |
4380 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4381 |
|
public void testCoCompletionGarbageRetention() throws Throwable { |
4382 |
|
final int n = expensiveTests ? 1_000_000 : 10; |
4383 |
|
final CompletableFuture<Integer> incomplete = new CompletableFuture<>(); |
4396 |
|
f.complete(null); |
4397 |
|
|
4398 |
|
f = new CompletableFuture<>(); |
4399 |
< |
CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete }); |
4399 |
> |
CompletableFuture.anyOf(f, incomplete); |
4400 |
|
f.complete(null); |
4401 |
|
} |
4402 |
|
|
4414 |
|
f.complete(null); |
4415 |
|
|
4416 |
|
f = new CompletableFuture<>(); |
4417 |
< |
CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f }); |
4417 |
> |
CompletableFuture.anyOf(incomplete, f); |
4418 |
|
f.complete(null); |
4419 |
|
} |
4420 |
|
} |