RequestWithFileId readRequest = new Smb2ReadRequest(mockConfig, testFileId, testOutputBuffer, 0);
        RequestWithFileId writeRequest = new Smb2WriteRequest(mockConfig, testFileId);
        RequestWithFileId flushRequest = new Smb2FlushRequest(mockConfig, testFileId);
        RequestWithFileId ioctlRequest = new Smb2IoctlRequest(mockConfig, 0x00090000, testFileId);

    return RequestBodySink(
      delegate = rawRequestBody,
      contentLength = contentLength,
      isSocket = false,
    )
  }

  @Throws(IOException::class)
  fun flushRequest() {
    try {
      codec.flushRequest()
    } catch (e: IOException) {
      call.eventListener.requestFailed(call, e)
      trackFailure(e)
      throw e
    }
  }

  @Throws(IOException::class)
  fun finishRequest() {

    }
    check(state == STATE_READING_RESPONSE_BODY || state == STATE_CLOSED) {
      "Trailers cannot be read because the state is $state"
    }
    return trailers
  }

  override fun flushRequest() {
    socket.sink.flush()
  }

  override fun finishRequest() {
    socket.sink.flush()
  }

  /** Returns bytes of a request header for sending on an HTTP transport. */
  fun writeRequest(