.url(server.url("/"))
        .post(sleepingRequestBody(250))
        .build()
    val call = client.newCall(request)
    call.timeout().timeout(2000, TimeUnit.MILLISECONDS)
    val response = call.execute()
    Thread.sleep(250)
    response.body.source().readUtf8()
    response.close()
    assertThat(call.isCanceled()).isFalse()
  }

  private fun sleepingRequestBody(sleepMillis: Int): RequestBody {