public void The_http_extension_methods_can_be_composed_to_generate_the_http_message()
        {
            _formatter.AppendHttpStatusLine(HttpVersion.V1_1, 200, new Utf8String("OK"));
            _formatter.Append(new Utf8String("Connection : open"));
            _formatter.AppendHttpNewLine();
            _formatter.AppendHttpNewLine();
            _formatter.Append(HttpBody);
            _formatter.AppendHttpNewLine();
            _formatter.Append(HttpBody);

            var result = _formatter.Formatted;

            result.AsSpan().SequenceEqual(_httpMessageInBytes);
            _formatter.Clear();
        }