public void mustSuitablyOverrideAttributeHandlingMethods() {
@SuppressWarnings("unused")
final Source<Integer, NotUsed> f =
Source.single(42)
.withAttributes(Attributes.name(""))
.addAttributes(Attributes.asyncBoundary())
.named("");
}
@Test
public void mustBeAbleToUseIntersperseAndConcat() 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.single(">> ")
.concat(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");
future.toCompletableFuture().get(200, TimeUnit.MILLISECONDS);
}