return if (chunked) -1L else size
      }

      override fun writeTo(sink: BufferedSink) {
        var count = 0
        while (count < size) {
          sink.write(buffer, 0, Math.min(size - count, writeSize.toLong()).toInt())
          count += writeSize
        }
      }
    }
  }

  @Test
  fun emptyResponseBody() {
    server.enqueue(

    builder.socketPolicy(DisconnectAtEnd)
    val headers = response.headers
    val fullBody = Buffer()
    response.body!!.writeTo(fullBody)
    val truncatedBody = Buffer()
    truncatedBody.write(fullBody, numBytesToKeep.toLong())
    builder.body(truncatedBody)
    builder.headers(headers)
    return builder
  }

  internal enum class TransferKind {
    CHUNKED {
      override fun setBody(