.requestIOException()
        .exhaustResponse()
    server.enqueue(
      MockResponse.Builder()
        .clearHeaders()
        .code(HttpURLConnection.HTTP_UNAUTHORIZED)
        .streamHandler(body1)
        .build(),
    )
    val body =
      MockStreamHandler()
        .sendResponse("response body\n")
        .exhaustResponse()
        .receiveRequest("request body\n")

  ) = apply {
    actions += { stream ->
      stream.responseBody.writeUtf8(s)
      stream.responseBody.flush()
      responseSent.countDown()
    }
  }

  fun exhaustResponse() =
    apply {
      actions += { stream -> stream.responseBody.close() }
    }

  fun sleep(
    duration: Long,
    unit: TimeUnit,
  ) = apply {
    actions += { Thread.sleep(unit.toMillis(duration)) }