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feat: Add expectNextN to StreamTestKit for javadsl. #962

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merged 1 commit into from
Jan 16, 2024
Merged

feat: Add expectNextN to StreamTestKit for javadsl. #962

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15 changes: 13 additions & 2 deletions stream-testkit/src/main/scala/org/apache/pekko/stream/testkit/StreamTestKit.scala
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Expand Up @@ -23,16 +23,17 @@ import scala.concurrent.duration._
import scala.reflect.ClassTag

import org.apache.pekko
import pekko.actor.ClassicActorSystemProvider
import org.reactivestreams.{ Publisher, Subscriber, Subscription }
import pekko.actor.{ ActorRef, ActorSystem, DeadLetterSuppression, NoSerializationVerificationNeeded }
import pekko.actor.ClassicActorSystemProvider
import pekko.stream._
import pekko.stream.impl._
import pekko.testkit.{ TestActor, TestProbe }
import pekko.testkit.TestActor.AutoPilot
import pekko.util.JavaDurationConverters
import pekko.util.ccompat._

import org.reactivestreams.{ Publisher, Subscriber, Subscription }

/**
* Provides factory methods for various Publishers.
*/
Expand Down Expand Up @@ -462,6 +463,16 @@ object TestSubscriber {
self
}

/**
* Fluent DSL
* Expect the given elements to be signalled in order.
* @since 1.1.0
*/
def expectNextN(elems: java.util.List[I]): Self = {
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elems.forEach(e => probe.expectMsg(OnNext(e)))
self
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}

/**
* Fluent DSL
* Expect the given elements to be signalled in any order.
Expand Down
12 changes: 9 additions & 3 deletions stream-testkit/src/test/scala/org/apache/pekko/stream/testkit/StreamTestKitSpec.scala
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Expand Up @@ -14,16 +14,15 @@
package org.apache.pekko.stream.testkit

import scala.concurrent.duration._

import org.apache.pekko
import pekko.stream.scaladsl.Source
import pekko.stream.testkit.scaladsl.TestSink

import pekko.testkit._

import pekko.testkit.TestEvent.Mute
import pekko.testkit.TestEvent.UnMute

import java.util

class StreamTestKitSpec extends PekkoSpec {

val ex = new Exception("Boom!")
Expand Down Expand Up @@ -199,5 +198,12 @@ class StreamTestKitSpec extends PekkoSpec {
"#expectNextN given specific elements" in {
Source(1 to 4).runWith(TestSink.probe).request(4).expectNextN(4) should ===(List(1, 2, 3, 4))
}

"#expectNextN given specific elements for java list" in {
Source(1 to 4).runWith(TestSink[Int]())
.request(4)
.expectNextN(util.Arrays.asList(1, 2, 3, 4))
.expectComplete()
}
}
}