Esempio n. 1
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  @Test
  public void mustBeAbleToRecover() throws Exception {
    final ManualProbe<Integer> publisherProbe = TestPublisher.manualProbe(true, system);
    final JavaTestKit probe = new JavaTestKit(system);

    final Source<Integer, NotUsed> source =
        Source.fromPublisher(publisherProbe)
            .map(
                elem -> {
                  if (elem == 1) throw new RuntimeException("ex");
                  else return elem;
                })
            .recover(new PFBuilder<Throwable, Integer>().matchAny(ex -> 0).build());

    final CompletionStage<Done> future =
        source.runWith(
            Sink.foreach(elem -> probe.getRef().tell(elem, ActorRef.noSender())), materializer);
    final PublisherProbeSubscription<Integer> s = publisherProbe.expectSubscription();
    s.sendNext(0);
    probe.expectMsgEquals(0);
    s.sendNext(1);
    probe.expectMsgEquals(0);

    future.toCompletableFuture().get(200, TimeUnit.MILLISECONDS);
  }
Esempio n. 2
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  @Test
  public void mustBeAbleToUseDropWhile() throws Exception {
    final JavaTestKit probe = new JavaTestKit(system);
    final Source<Integer, NotUsed> source =
        Source.from(Arrays.asList(0, 1, 2, 3))
            .dropWhile(
                new Predicate<Integer>() {
                  public boolean test(Integer elem) {
                    return elem < 2;
                  }
                });

    final CompletionStage<Done> future =
        source.runWith(
            Sink.foreach(elem -> probe.getRef().tell(elem, ActorRef.noSender())), materializer);

    probe.expectMsgEquals(2);
    probe.expectMsgEquals(3);
    future.toCompletableFuture().get(200, TimeUnit.MILLISECONDS);
  }
Esempio n. 3
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  @Test
  public void mustBeAbleToCombine() throws Exception {
    final JavaTestKit probe = new JavaTestKit(system);
    final Source<Integer, NotUsed> source1 = Source.from(Arrays.asList(0, 1));
    final Source<Integer, NotUsed> source2 = Source.from(Arrays.asList(2, 3));

    final Source<Integer, NotUsed> source =
        Source.combine(
            source1,
            source2,
            new ArrayList<Source<Integer, ?>>(),
            width -> Merge.<Integer>create(width));

    final CompletionStage<Done> future =
        source.runWith(
            Sink.foreach(elem -> probe.getRef().tell(elem, ActorRef.noSender())), materializer);

    probe.expectMsgAllOf(0, 1, 2, 3);

    future.toCompletableFuture().get(200, TimeUnit.MILLISECONDS);
  }
Esempio n. 4
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  @Test
  public void mustBeAbleToUseIntersperse() throws Exception {
    final JavaTestKit probe = new JavaTestKit(system);
    final Source<String, NotUsed> source =
        Source.from(Arrays.asList("0", "1", "2", "3")).intersperse("[", ",", "]");

    final CompletionStage<Done> future =
        source.runWith(
            Sink.foreach(elem -> probe.getRef().tell(elem, ActorRef.noSender())), materializer);

    probe.expectMsgEquals("[");
    probe.expectMsgEquals("0");
    probe.expectMsgEquals(",");
    probe.expectMsgEquals("1");
    probe.expectMsgEquals(",");
    probe.expectMsgEquals("2");
    probe.expectMsgEquals(",");
    probe.expectMsgEquals("3");
    probe.expectMsgEquals("]");
    future.toCompletableFuture().get(200, TimeUnit.MILLISECONDS);
  }