public async Task Issue_4580_EmptyByteStringCausesPipeToBeClosed()
{
var serverPipe = new NamedPipeServerStream("unique-pipe-name", PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous, 20, 20);
var serverPipeConnectionTask = serverPipe.WaitForConnectionAsync();
var clientPipe = new NamedPipeClientStream(".", "unique-pipe-name", PipeDirection.In, PipeOptions.Asynchronous);
clientPipe.Connect();
await serverPipeConnectionTask;
var cnt = 0;
var writeToStreamTask = Source.From(Enumerable.Range(0, 100))
.Select(i => ByteString.FromString(i.ToString()))
.Select(bs => cnt++ == 10 ? ByteString.Empty : bs) // ByteString.Empty.ToArray() failed in original bug
.ToMaterialized(StreamConverters.FromOutputStream(() => serverPipe), Keep.Right)
.Run(Materializer);
var result = new List<string>();
var readFromStreamTask = StreamConverters.FromInputStream(() => clientPipe, 1)
.RunForeach(bs => result.Add(bs.ToString(Encoding.ASCII)), Materializer);
await Task.WhenAll(writeToStreamTask, readFromStreamTask);
var expected = Enumerable.Range(0, 100)
.SelectMany(i => i == 10 ? Array.Empty<string>() : i.ToString().Select(c => c.ToString()));
expected.SequenceEqual(result).ShouldBeTrue();
}
public void OutputStreamSink_must_complete_materialized_value_with_the_error()
{
this.AssertAllStagesStopped(() =>
{
var completion = Source.Failed <ByteString>(new Exception("Boom!"))
.RunWith(StreamConverters.FromOutputStream(() => new OutputStream()), _materializer);
AssertThrows <AbruptIOTerminationException>(completion.Wait);
}, _materializer);
}
public void OutputStreamSink_must_close_underlying_stream_when_completion_received()
{
this.AssertAllStagesStopped(() =>
{
var p = CreateTestProbe();
Source.Empty <ByteString>()
.RunWith(StreamConverters.FromOutputStream(() => new CompletionOutputStream(p)), _materializer);
p.ExpectMsg("closed");
}, _materializer);
}
public void OutputStreamSink_must_close_underlying_stream_when_error_received()
{
this.AssertAllStagesStopped(() =>
{
var p = CreateTestProbe();
Source.Failed <ByteString>(new Exception("Boom!"))
.RunWith(StreamConverters.FromOutputStream(() => new CloseOutputStream(p)), _materializer);
p.ExpectMsg("closed");
}, _materializer);
}
public void OutputStreamSink_must_write_bytes_to_void_OutputStream()
{
this.AssertAllStagesStopped(() =>
{
var p = CreateTestProbe();
var datas = new List <ByteString>
{
ByteString.FromString("a"),
ByteString.FromString("c"),
ByteString.FromString("c")
};
var completion = Source.From(datas)
.RunWith(StreamConverters.FromOutputStream(() => new VoidOutputStream(p)), _materializer);
p.ExpectMsg(datas[0].ToString());
p.ExpectMsg(datas[1].ToString());
p.ExpectMsg(datas[2].ToString());
completion.Wait(TimeSpan.FromSeconds(3));
}, _materializer);
}