@Test
public void mustBeAbleToUseThrottle() throws Exception {
Integer result =
Source.from(Arrays.asList(0, 1, 2))
.throttle(10, FiniteDuration.create(1, TimeUnit.SECONDS), 10, ThrottleMode.shaping())
.throttle(10, FiniteDuration.create(1, TimeUnit.SECONDS), 10, ThrottleMode.enforcing())
.runWith(Sink.head(), materializer)
.toCompletableFuture()
.get(3, TimeUnit.SECONDS);
assertEquals((Object) 0, result);
}
@Test
public void mustWorksForTwoStreams() throws Exception {
final Flow<Integer, Integer, NotUsed> sharedThrottle =
Flow.of(Integer.class)
.throttle(1, FiniteDuration.create(1, TimeUnit.DAYS), 1, ThrottleMode.enforcing());
CompletionStage<List<Integer>> result1 =
Source.single(1).via(sharedThrottle).via(sharedThrottle).runWith(Sink.seq(), materializer);
// If there is accidental shared state then we would not be able to pass through the single
// element
assertEquals(
result1.toCompletableFuture().get(3, TimeUnit.SECONDS), Collections.singletonList(1));
// It works with a new stream, too
CompletionStage<List<Integer>> result2 =
Source.single(1).via(sharedThrottle).via(sharedThrottle).runWith(Sink.seq(), materializer);
assertEquals(
result2.toCompletableFuture().get(3, TimeUnit.SECONDS), Collections.singletonList(1));
}