Akka.Streams.Tests.IO.InputStreamSinkSpec.InputStreamSink_should_block_read_until_get_requested_number_of_bytes_from_upstream C# (CSharp) Method

        public void InputStreamSink_should_block_read_until_get_requested_number_of_bytes_from_upstream()
        {
            this.AssertAllStagesStopped(() =>
            {
                var run =
                    this.SourceProbe<ByteString>()
                        .ToMaterialized(StreamConverters.AsInputStream(), Keep.Both)
                        .Run(_materializer);
                var probe = run.Item1;
                var inputStream = run.Item2;
                var f = Task.Run(() => inputStream.Read(new byte[_byteString.Count], 0, _byteString.Count));

                f.Wait(Timeout).Should().BeFalse();

                probe.SendNext(_byteString);
                f.Wait(Timeout).Should().BeTrue();
                f.Result.Should().Be(_byteString.Count);

                probe.SendComplete();
                inputStream.ReadByte().Should().Be(-1);
                inputStream.Close();

            }, _materializer);
        }