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Fix slow slink guarantees #8880

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Fix slow slink guarantees #8880

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11 changes: 11 additions & 0 deletions streams-tests/shared/src/test/scala/zio/stream/ZStreamSpec.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -3725,6 +3725,17 @@ object ZStreamSpec extends ZIOBaseSpec {
_ <- stream.tapSink(sink).take(3).runDrain
result <- ref.get
} yield assertTrue(result == 6)
},
test("slow sink") {
for {
ref <- Ref.make(0)
stream = ZStream(1, 2, 3, 4, 5).rechunk(1).forever
sink = ZSink.foreach((n: Int) => ZIO.sleep(2.second) *> ref.update(_ + n))
fib <- stream.tapSink(sink).take(1).mapZIO(a => ZIO.sleep(1.second) *> ZIO.succeed(a)).runCollect.fork
_ <- TestClock.adjust(3.seconds)
res <- fib.join
result <- ref.get
} yield assert(result)(equalTo(1)) && assert(res)(equalTo(Chunk(1)))
}
),
suite("throttleEnforce")(
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2 changes: 1 addition & 1 deletion streams/shared/src/main/scala/zio/stream/ZChannel.scala
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Expand Up @@ -857,7 +857,7 @@ sealed trait ZChannel[-Env, -InErr, -InElem, -InDone, +OutErr, +OutElem, +OutDon
}

ZChannel
.fromZIO(pullL.forkIn(scope).zipWith(pullR.forkIn(scope))(BothRunning(_, _): MergeState))
.fromZIO(pullL.forkDaemon.zipWith(pullR.forkDaemon)(BothRunning(_, _): MergeState))
.flatMap(go)
.embedInput(input)
}
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