public void WhenTheReadObservableByteBufferMethodIsCalledWithTheFilenameAndBufferSize()
        {
            var filePath   = _scenario.Get <string>("filePath");
            var bufferSize = _scenario.Get <int>("bufferSize");
            var stream     = ReactiveFileUtils.ReadObservableByteBuffer(filePath, bufferSize);
            IList <IList <byte> > lists = stream.ToList().Wait();

            _scenario.Set <byte[][]>(lists.ToJagged(), "result");
        }