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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.198 by dl, Mon Sep 17 11:50:55 2018 UTC vs.
Revision 1.202 by jsr166, Sat Sep 22 22:23:08 2018 UTC

# Line 574 | Line 574 | public class CompletableFutureTest exten
574          ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
575          public CompletionStage<Integer> apply(Throwable x) {
576              invoked();
577 <            CompletableFuture<Integer> d = new CompletableFuture<Integer>();
578 <            d.complete(value);
579 <            return d;
577 >            return CompletableFuture.completedFuture(value);
578          }
579      }
580  
# Line 4633 | Line 4631 | public class CompletableFutureTest exten
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   }

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