41 |
|
import java.util.function.Predicate; |
42 |
|
import java.util.function.Supplier; |
43 |
|
|
44 |
– |
import junit.framework.AssertionFailedError; |
44 |
|
import junit.framework.Test; |
45 |
|
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 |
|
try { |
63 |
|
assertNull(f.getNow(null)); |
64 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
65 |
|
try { |
66 |
< |
f.get(0L, SECONDS); |
66 |
> |
f.get(randomExpiredTimeout(), randomTimeUnit()); |
67 |
|
shouldThrow(); |
68 |
|
} |
69 |
|
catch (TimeoutException success) {} |
75 |
|
|
76 |
|
try { |
77 |
|
assertEquals(value, f.join()); |
79 |
– |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
80 |
– |
try { |
78 |
|
assertEquals(value, f.getNow(null)); |
82 |
– |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
83 |
– |
try { |
79 |
|
assertEquals(value, f.get()); |
80 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
81 |
|
assertTrue(f.isDone()); |
82 |
|
assertFalse(f.isCancelled()); |
83 |
|
assertFalse(f.isCompletedExceptionally()); |
84 |
< |
assertTrue(f.toString().contains("[Completed normally]")); |
84 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]")); |
85 |
|
} |
86 |
|
|
87 |
|
/** |
88 |
|
* Returns the "raw" internal exceptional completion of f, |
89 |
|
* without any additional wrapping with CompletionException. |
90 |
|
*/ |
91 |
< |
<U> Throwable exceptionalCompletion(CompletableFuture<U> f) { |
92 |
< |
// handle (and whenComplete) can distinguish between "direct" |
93 |
< |
// and "wrapped" exceptional completion |
94 |
< |
return f.handle((U u, Throwable t) -> t).join(); |
91 |
> |
Throwable exceptionalCompletion(CompletableFuture<?> f) { |
92 |
> |
// handle (and whenComplete and exceptionally) can distinguish |
93 |
> |
// between "direct" and "wrapped" exceptional completion |
94 |
> |
return f.handle((u, t) -> t).join(); |
95 |
|
} |
96 |
|
|
97 |
|
void checkCompletedExceptionally(CompletableFuture<?> f, |
137 |
|
assertFalse(f.isCancelled()); |
138 |
|
assertTrue(f.isDone()); |
139 |
|
assertTrue(f.isCompletedExceptionally()); |
140 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
140 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
141 |
|
} |
142 |
|
|
143 |
|
void checkCompletedWithWrappedCFException(CompletableFuture<?> f) { |
192 |
|
assertTrue(f.isDone()); |
193 |
|
assertTrue(f.isCompletedExceptionally()); |
194 |
|
assertTrue(f.isCancelled()); |
195 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
195 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
196 |
|
} |
197 |
|
|
198 |
|
/** |
291 |
|
} |
292 |
|
|
293 |
|
f = new CompletableFuture<>(); |
294 |
< |
f.completeExceptionally(ex = new CFException()); |
294 |
> |
f.completeExceptionally(new CFException()); |
295 |
|
f.obtrudeValue(v1); |
296 |
|
checkCompletedNormally(f, v1); |
297 |
|
f.obtrudeException(ex = new CFException()); |
328 |
|
/** |
329 |
|
* toString indicates current completion state |
330 |
|
*/ |
331 |
< |
public void testToString() { |
332 |
< |
CompletableFuture<String> f; |
333 |
< |
|
334 |
< |
f = new CompletableFuture<String>(); |
335 |
< |
assertTrue(f.toString().contains("[Not completed]")); |
331 |
> |
public void testToString_incomplete() { |
332 |
> |
CompletableFuture<String> f = new CompletableFuture<>(); |
333 |
> |
assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]")); |
334 |
> |
if (testImplementationDetails) |
335 |
> |
assertEquals(identityString(f) + "[Not completed]", |
336 |
> |
f.toString()); |
337 |
> |
} |
338 |
|
|
339 |
+ |
public void testToString_normal() { |
340 |
+ |
CompletableFuture<String> f = new CompletableFuture<>(); |
341 |
|
assertTrue(f.complete("foo")); |
342 |
< |
assertTrue(f.toString().contains("[Completed normally]")); |
342 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]")); |
343 |
> |
if (testImplementationDetails) |
344 |
> |
assertEquals(identityString(f) + "[Completed normally]", |
345 |
> |
f.toString()); |
346 |
> |
} |
347 |
|
|
348 |
< |
f = new CompletableFuture<String>(); |
348 |
> |
public void testToString_exception() { |
349 |
> |
CompletableFuture<String> f = new CompletableFuture<>(); |
350 |
|
assertTrue(f.completeExceptionally(new IndexOutOfBoundsException())); |
351 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
351 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
352 |
> |
if (testImplementationDetails) |
353 |
> |
assertTrue(f.toString().startsWith( |
354 |
> |
identityString(f) + "[Completed exceptionally: ")); |
355 |
> |
} |
356 |
|
|
357 |
+ |
public void testToString_cancelled() { |
358 |
|
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { |
359 |
< |
f = new CompletableFuture<String>(); |
359 |
> |
CompletableFuture<String> f = new CompletableFuture<>(); |
360 |
|
assertTrue(f.cancel(mayInterruptIfRunning)); |
361 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
361 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
362 |
> |
if (testImplementationDetails) |
363 |
> |
assertTrue(f.toString().startsWith( |
364 |
> |
identityString(f) + "[Completed exceptionally: ")); |
365 |
|
} |
366 |
|
} |
367 |
|
|
1254 |
|
r.assertInvoked(); |
1255 |
|
}} |
1256 |
|
|
1257 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
1258 |
|
public void testRunAsync_rejectingExecutor() { |
1259 |
|
CountingRejectingExecutor e = new CountingRejectingExecutor(); |
1260 |
|
try { |
1301 |
|
r.assertInvoked(); |
1302 |
|
}} |
1303 |
|
|
1304 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
1305 |
|
public void testSupplyAsync_rejectingExecutor() { |
1306 |
|
CountingRejectingExecutor e = new CountingRejectingExecutor(); |
1307 |
|
try { |
2576 |
|
|
2577 |
|
// unspecified behavior - both source completions available |
2578 |
|
try { |
2579 |
< |
assertEquals(null, h0.join()); |
2579 |
> |
assertNull(h0.join()); |
2580 |
|
rs[0].assertValue(v1); |
2581 |
|
} catch (CompletionException ok) { |
2582 |
|
checkCompletedWithWrappedException(h0, ex); |
2583 |
|
rs[0].assertNotInvoked(); |
2584 |
|
} |
2585 |
|
try { |
2586 |
< |
assertEquals(null, h1.join()); |
2586 |
> |
assertNull(h1.join()); |
2587 |
|
rs[1].assertValue(v1); |
2588 |
|
} catch (CompletionException ok) { |
2589 |
|
checkCompletedWithWrappedException(h1, ex); |
2590 |
|
rs[1].assertNotInvoked(); |
2591 |
|
} |
2592 |
|
try { |
2593 |
< |
assertEquals(null, h2.join()); |
2593 |
> |
assertNull(h2.join()); |
2594 |
|
rs[2].assertValue(v1); |
2595 |
|
} catch (CompletionException ok) { |
2596 |
|
checkCompletedWithWrappedException(h2, ex); |
2597 |
|
rs[2].assertNotInvoked(); |
2598 |
|
} |
2599 |
|
try { |
2600 |
< |
assertEquals(null, h3.join()); |
2600 |
> |
assertNull(h3.join()); |
2601 |
|
rs[3].assertValue(v1); |
2602 |
|
} catch (CompletionException ok) { |
2603 |
|
checkCompletedWithWrappedException(h3, ex); |
2836 |
|
|
2837 |
|
// unspecified behavior - both source completions available |
2838 |
|
try { |
2839 |
< |
assertEquals(null, h0.join()); |
2839 |
> |
assertNull(h0.join()); |
2840 |
|
rs[0].assertInvoked(); |
2841 |
|
} catch (CompletionException ok) { |
2842 |
|
checkCompletedWithWrappedException(h0, ex); |
2843 |
|
rs[0].assertNotInvoked(); |
2844 |
|
} |
2845 |
|
try { |
2846 |
< |
assertEquals(null, h1.join()); |
2846 |
> |
assertNull(h1.join()); |
2847 |
|
rs[1].assertInvoked(); |
2848 |
|
} catch (CompletionException ok) { |
2849 |
|
checkCompletedWithWrappedException(h1, ex); |
2850 |
|
rs[1].assertNotInvoked(); |
2851 |
|
} |
2852 |
|
try { |
2853 |
< |
assertEquals(null, h2.join()); |
2853 |
> |
assertNull(h2.join()); |
2854 |
|
rs[2].assertInvoked(); |
2855 |
|
} catch (CompletionException ok) { |
2856 |
|
checkCompletedWithWrappedException(h2, ex); |
2857 |
|
rs[2].assertNotInvoked(); |
2858 |
|
} |
2859 |
|
try { |
2860 |
< |
assertEquals(null, h3.join()); |
2860 |
> |
assertNull(h3.join()); |
2861 |
|
rs[3].assertInvoked(); |
2862 |
|
} catch (CompletionException ok) { |
2863 |
|
checkCompletedWithWrappedException(h3, ex); |
3252 |
|
/** |
3253 |
|
* Completion methods throw NullPointerException with null arguments |
3254 |
|
*/ |
3255 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
3256 |
|
public void testNPE() { |
3257 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3258 |
|
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3547 |
|
*/ |
3548 |
|
public void testCompletedStage() { |
3549 |
|
AtomicInteger x = new AtomicInteger(0); |
3550 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3550 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3551 |
|
CompletionStage<Integer> f = CompletableFuture.completedStage(1); |
3552 |
|
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3553 |
|
assertEquals(x.get(), 1); |
3649 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3650 |
|
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3651 |
|
AtomicInteger x = new AtomicInteger(0); |
3652 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3652 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3653 |
|
checkIncomplete(f); |
3654 |
|
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3655 |
|
f.complete(1); |
3666 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3667 |
|
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3668 |
|
AtomicInteger x = new AtomicInteger(0); |
3669 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3669 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3670 |
|
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3671 |
|
checkIncomplete(f); |
3672 |
|
CFException ex = new CFException(); |
3684 |
|
CFException ex = new CFException(); |
3685 |
|
CompletionStage<Integer> f = CompletableFuture.failedStage(ex); |
3686 |
|
AtomicInteger x = new AtomicInteger(0); |
3687 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3687 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3688 |
|
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3689 |
|
assertEquals(x.get(), 0); |
3690 |
|
assertEquals(r.get(), ex); |
4189 |
|
static void assertZero(CompletableFuture<?> f) { |
4190 |
|
try { |
4191 |
|
f.getNow(null); |
4192 |
< |
throw new AssertionFailedError("should throw"); |
4192 |
> |
throw new AssertionError("should throw"); |
4193 |
|
} catch (CompletionException success) { |
4194 |
|
assertTrue(success.getCause() instanceof ZeroException); |
4195 |
|
} |
4314 |
|
} |
4315 |
|
|
4316 |
|
/** Test long recursive chains of CompletableFutures with cascading completions */ |
4317 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4318 |
|
public void testRecursiveChains() throws Throwable { |
4319 |
|
for (ExecutionMode m : ExecutionMode.values()) |
4320 |
|
for (boolean addDeadEnds : new boolean[] { true, false }) |
4339 |
|
* A single CompletableFuture with many dependents. |
4340 |
|
* A demo of scalability - runtime is O(n). |
4341 |
|
*/ |
4342 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4343 |
|
public void testManyDependents() throws Throwable { |
4344 |
|
final int n = expensiveTests ? 1_000_000 : 10; |
4345 |
|
final CompletableFuture<Void> head = new CompletableFuture<>(); |
4369 |
|
} |
4370 |
|
|
4371 |
|
/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */ |
4372 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4373 |
|
public void testCoCompletionGarbageRetention() throws Throwable { |
4374 |
|
final int n = expensiveTests ? 1_000_000 : 10; |
4375 |
|
final CompletableFuture<Integer> incomplete = new CompletableFuture<>(); |