doUpload(TransferKind.FIXED_LENGTH, WriteKind.LARGE_BUFFERS)
  }

  private fun doUpload(
    uploadKind: TransferKind,
    writeKind: WriteKind,
  ) {
    val n = 512 * 1024
    server.bodyLimit = 0
    server.enqueue(MockResponse())
    val requestBody: RequestBody =
      object : RequestBody() {
        override fun contentType(): MediaType? {
          return null