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

        public void InputStreamSink_should_read_bytes_correctly_if_requested_by_input_stream_not_in_chunk_size()
        {
            this.AssertAllStagesStopped(() =>
            {
                var sinkProbe = CreateTestProbe();
                var byteString2 = RandomByteString(3);
                var inputStream = Source.From(new[] { _byteString, byteString2, null })
                    .RunWith(TestSink(sinkProbe), _materializer);

                sinkProbe.ExpectMsgAllOf(GraphStageMessages.Push.Instance, GraphStageMessages.Push.Instance);

                var result = ReadN(inputStream, 2);
                result.Item1.Should().Be(2);
                result.Item2.Should().BeEquivalentTo(_byteString.Take(2));

                result = ReadN(inputStream, 2);
                result.Item1.Should().Be(2);
                result.Item2.Should().BeEquivalentTo(_byteString.Drop(2).Concat(byteString2.Take(1)));

                result = ReadN(inputStream, 2);
                result.Item1.Should().Be(2);
                result.Item2.Should().BeEquivalentTo(byteString2.Drop(1));

                inputStream.Close();

            }, _materializer);
        }