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Propagate Defects In ZStream#toQueueOfElements #7520

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Merged
merged 1 commit into from
Nov 12, 2022
Merged

Propagate Defects In ZStream#toQueueOfElements #7520

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8 changes: 8 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 @@ -3932,6 +3932,14 @@ object ZStreamSpec extends ZIOBaseSpec {
)
})
),
suite("toQueueOfElements")(
test("propagates defects") {
for {
queue <- ZStream.dieMessage("die").toQueueOfElements(1)
exit <- queue.take
} yield assert(exit)(dies(hasMessage(equalTo("die"))))
}
),
suite("toReader")(
test("read one-by-one") {
check(tinyListOf(Gen.chunkOf(Gen.char))) { chunks =>
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4 changes: 2 additions & 2 deletions streams/shared/src/main/scala/zio/stream/ZStream.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -2756,13 +2756,13 @@ final class ZStream[-R, +E, +A] private (val channel: ZChannel[R, Any, Any, Any,
queue: => Enqueue[Exit[Option[E], A]]
)(implicit trace: Trace): ZIO[R with Scope, Nothing, Unit] = {
lazy val writer: ZChannel[R, E, Chunk[A], Any, Nothing, Exit[Option[E], A], Any] =
ZChannel.readWith[R, E, Chunk[A], Any, Nothing, Exit[Option[E], A], Any](
ZChannel.readWithCause[R, E, Chunk[A], Any, Nothing, Exit[Option[E], A], Any](
in =>
in.foldLeft[ZChannel[R, Any, Any, Any, Nothing, Exit[Option[E], A], Any]](ZChannel.unit) {
case (channel, a) =>
channel *> ZChannel.write(Exit.succeed(a))
} *> writer,
err => ZChannel.write(Exit.fail(Some(err))),
err => ZChannel.write(Exit.failCause(err.map(Some(_)))),
_ => ZChannel.write(Exit.fail(None))
)

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