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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.151 by jsr166, Sun Jun 26 17:45:35 2016 UTC vs.
Revision 1.161 by jsr166, Tue Jun 28 14:49:48 2016 UTC

#	Line 30 | Line 30 | import java.util.concurrent.ExecutionExc
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.TimeUnit;
36		import java.util.concurrent.atomic.AtomicInteger;
#	Line 549 | Line 550 | public class CompletableFutureTest exten
550		}
551		}
552
553	+	static class CountingRejectingExecutor implements Executor {
554	+	final RejectedExecutionException ex = new RejectedExecutionException();
555	+	final AtomicInteger count = new AtomicInteger(0);
556	+	public void execute(Runnable r) {
557	+	count.getAndIncrement();
558	+	throw ex;
559	+	}
560	+	}
561	+
562		// Used for explicit executor tests
563		static final class ThreadExecutor implements Executor {
564		final AtomicInteger count = new AtomicInteger(0);
#	Line 1233 | Line 1243 | public class CompletableFutureTest exten
1243		r.assertInvoked();
1244		}}
1245
1246	+	public void testRunAsync_rejectingExecutor() {
1247	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1248	+	try {
1249	+	CompletableFuture.runAsync(() -> {}, e);
1250	+	shouldThrow();
1251	+	} catch (Throwable t) {
1252	+	assertSame(e.ex, t);
1253	+	}
1254	+
1255	+	assertEquals(1, e.count.get());
1256	+	}
1257	+
1258		/**
1259		* supplyAsync completes with result of supplier
1260		*/
#	Line 1267 | Line 1289 | public class CompletableFutureTest exten
1289		r.assertInvoked();
1290		}}
1291
1292	+	public void testSupplyAsync_rejectingExecutor() {
1293	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1294	+	try {
1295	+	CompletableFuture.supplyAsync(() -> null, e);
1296	+	shouldThrow();
1297	+	} catch (Throwable t) {
1298	+	assertSame(e.ex, t);
1299	+	}
1300	+
1301	+	assertEquals(1, e.count.get());
1302	+	}
1303	+
1304		// seq completion methods
1305
1306		/**
#	Line 3317 | Line 3351 | public class CompletableFutureTest exten
3351		}
3352
3353		/**
3354	+	* Test submissions to an executor that rejects all tasks.
3355	+	*/
3356	+	public void testRejectingExecutor() {
3357	+	for (Integer v : new Integer[] { 1, null })
3358	+	{
3359	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3360	+
3361	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3362	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3363	+
3364	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3365	+
3366	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3367	+	srcs.add(complete);
3368	+	srcs.add(incomplete);
3369	+
3370	+	for (CompletableFuture<Integer> src : srcs) {
3371	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3372	+	fs.add(src.thenRunAsync(() -> {}, e));
3373	+	fs.add(src.thenAcceptAsync((z) -> {}, e));
3374	+	fs.add(src.thenApplyAsync((z) -> z, e));
3375	+
3376	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3377	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3378	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3379	+
3380	+	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3381	+	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3382	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3383	+
3384	+	fs.add(src.thenComposeAsync((z) -> null, e));
3385	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3386	+	fs.add(src.handleAsync((z, t) -> null, e));
3387	+
3388	+	for (CompletableFuture<?> future : fs) {
3389	+	if (src.isDone())
3390	+	checkCompletedWithWrappedException(future, e.ex);
3391	+	else
3392	+	checkIncomplete(future);
3393	+	}
3394	+	futures.addAll(fs);
3395	+	}
3396	+
3397	+	{
3398	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3399	+
3400	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3401	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3402	+
3403	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3404	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3405	+
3406	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3407	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3408	+
3409	+	for (CompletableFuture<?> future : fs)
3410	+	checkIncomplete(future);
3411	+	futures.addAll(fs);
3412	+	}
3413	+
3414	+	{
3415	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3416	+
3417	+	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3418	+	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3419	+
3420	+	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3421	+	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3422	+
3423	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3424	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3425	+
3426	+	for (CompletableFuture<?> future : fs)
3427	+	checkCompletedWithWrappedException(future, e.ex);
3428	+	futures.addAll(fs);
3429	+	}
3430	+
3431	+	incomplete.complete(v);
3432	+
3433	+	for (CompletableFuture<?> future : futures)
3434	+	checkCompletedWithWrappedException(future, e.ex);
3435	+
3436	+	assertEquals(futures.size(), e.count.get());
3437	+	}}
3438	+
3439	+	/**
3440	+	* Test submissions to an executor that rejects all tasks, but
3441	+	* should never be invoked because the dependent future is
3442	+	* explicitly completed.
3443	+	*/
3444	+	public void testRejectingExecutorNeverInvoked() {
3445	+	for (Integer v : new Integer[] { 1, null })
3446	+	{
3447	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3448	+
3449	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3450	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3451	+
3452	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3453	+
3454	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3455	+	srcs.add(complete);
3456	+	srcs.add(incomplete);
3457	+
3458	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3459	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3460	+	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3461	+	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3462	+
3463	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3464	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3465	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3466	+
3467	+	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3468	+	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3469	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3470	+
3471	+	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3472	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3473	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3474	+
3475	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3476	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3477	+
3478	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3479	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3480	+
3481	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3482	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3483	+
3484	+	for (CompletableFuture<?> future : fs)
3485	+	checkIncomplete(future);
3486	+
3487	+	for (CompletableFuture<?> future : fs)
3488	+	future.complete(null);
3489	+
3490	+	incomplete.complete(v);
3491	+
3492	+	for (CompletableFuture<?> future : fs)
3493	+	checkCompletedNormally(future, null);
3494	+
3495	+	assertEquals(0, e.count.get());
3496	+	}}
3497	+
3498	+	/**
3499		* toCompletableFuture returns this CompletableFuture.
3500		*/
3501		public void testToCompletableFuture() {
#	Line 3960 | Line 4139 | public class CompletableFutureTest exten
4139		* A demo of scalability - runtime is O(n).
4140		*/
4141		public void testManyDependents() throws Throwable {
4142	<	final int n = 1_000;
4142	>	final int n = expensiveTests ? 1_000_000 : 10;
4143		final CompletableFuture<Void> head = new CompletableFuture<>();
4144		final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4145		final AtomicInteger count = new AtomicInteger(0);
#	Line 3987 | Line 4166 | public class CompletableFutureTest exten
4166		assertEquals(5 * 3 * n, count.get());
4167		}
4168
4169	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4170	+	public void testCoCompletionGarbageRetention() throws Throwable {
4171	+	final int n = expensiveTests ? 1_000_000 : 10;
4172	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4173	+	CompletableFuture<Integer> f;
4174	+	for (int i = 0; i < n; i++) {
4175	+	f = new CompletableFuture<>();
4176	+	f.runAfterEither(incomplete, () -> {});
4177	+	f.complete(null);
4178	+
4179	+	f = new CompletableFuture<>();
4180	+	f.acceptEither(incomplete, (x) -> {});
4181	+	f.complete(null);
4182	+
4183	+	f = new CompletableFuture<>();
4184	+	f.applyToEither(incomplete, (x) -> x);
4185	+	f.complete(null);
4186	+
4187	+	f = new CompletableFuture<>();
4188	+	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4189	+	f.complete(null);
4190	+	}
4191	+
4192	+	for (int i = 0; i < n; i++) {
4193	+	f = new CompletableFuture<>();
4194	+	incomplete.runAfterEither(f, () -> {});
4195	+	f.complete(null);
4196	+
4197	+	f = new CompletableFuture<>();
4198	+	incomplete.acceptEither(f, (x) -> {});
4199	+	f.complete(null);
4200	+
4201	+	f = new CompletableFuture<>();
4202	+	incomplete.applyToEither(f, (x) -> x);
4203	+	f.complete(null);
4204	+
4205	+	f = new CompletableFuture<>();
4206	+	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4207	+	f.complete(null);
4208	+	}
4209	+	}
4210	+
4211	+	/*
4212	+	* Tests below currently fail in stress mode due to memory retention.
4213	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck
4214	+	*/
4215	+
4216	+	/** Checks for garbage retention with anyOf. */
4217	+	public void testAnyOfGarbageRetention() throws Throwable {
4218	+	for (Integer v : new Integer[] { 1, null })
4219	+	{
4220	+	final int n = expensiveTests ? 100_000 : 10;
4221	+	CompletableFuture<Integer>[] fs
4222	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4223	+	for (int i = 0; i < fs.length; i++)
4224	+	fs[i] = new CompletableFuture<>();
4225	+	fs[fs.length - 1].complete(v);
4226	+	for (int i = 0; i < n; i++)
4227	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4228	+	}}
4229	+
4230	+	/** Checks for garbage retention with allOf. */
4231	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4232	+	final int n = expensiveTests ? 100_000 : 10;
4233	+	CompletableFuture<Integer>[] fs
4234	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4235	+	for (int i = 0; i < fs.length; i++)
4236	+	fs[i] = new CompletableFuture<>();
4237	+	for (int i = 0; i < n; i++)
4238	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4239	+	}
4240	+
4241		//     static <U> U join(CompletionStage<U> stage) {
4242		//         CompletableFuture<U> f = new CompletableFuture<>();
4243		//         stage.whenComplete((v, ex) -> {

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