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+str #17383 implement intersperse

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This commit is contained in:
Konrad Malawski 2015-10-16 01:55:20 +02:00
parent 99158f515c
commit 61c2213e02
10 changed files with 368 additions and 3 deletions
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47
akka-stream-tests/src/test/java/akka/stream/javadsl/FlowTest.java
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@ -105,6 +105,53 @@ public class FlowTest extends StreamTest {
Await.ready(future, Duration.apply(200, TimeUnit.MILLISECONDS));
}
@Test
public void mustBeAbleToUseIntersperse() throws Exception {
final JavaTestKit probe = new JavaTestKit(system);
final Source<String, ?> source = Source.from(Arrays.asList("0", "1", "2", "3"));
final Flow<String, String, ?> flow = Flow.of(String.class).intersperse("[", ",", "]");
final Future<BoxedUnit> future = source.via(flow).runWith(Sink.foreach(new Procedure<String>() { // Scala Future
public void apply(String 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("]");
Await.ready(future, Duration.apply(200, TimeUnit.MILLISECONDS));
}
@Test
public void mustBeAbleToUseIntersperseAndConcat() throws Exception {
final JavaTestKit probe = new JavaTestKit(system);
final Source<String, ?> source = Source.from(Arrays.asList("0", "1", "2", "3"));
final Flow<String, String, ?> flow = Flow.of(String.class).intersperse(",");
final Future<BoxedUnit> future = Source.single(">> ").concat(source.via(flow)).runWith(Sink.foreach(new Procedure<String>() { // Scala Future
public void apply(String 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");
Await.ready(future, Duration.apply(200, TimeUnit.MILLISECONDS));
}
@Test
public void mustBeAbleToUseTakeWhile() throws Exception {
final JavaTestKit probe = new JavaTestKit(system);