replace delay with sleep

SleepTest.kt

class IsgdImpl : UrlShorter {
  override suspend fun getShortUrl(longUrl: String): String? {
    logger.info("running : {}", Thread.currentThread().name)
    val url = "https://is.gd/create.php?format=simple&url=%s".format(URLEncoder.encode(longUrl, "UTF-8"))

    return withContext(Dispatchers.IO) {
      logger.info("running Dispatchers.IO : {}", Thread.currentThread().name)
      Request.Get(url).also {
        sleep(1000)
        //delay(1000)
      }.execute()
        .also {
          logger.info("ISGD network call invoked")
        }.returnContent().asString().also {
          logger.info("returning {}", it)
        }
    }
  }
}

class TinyImpl : UrlShorter {
  override suspend fun getShortUrl(longUrl: String): String? {
    logger.info("running : {}", Thread.currentThread().name)
    val url = "http://tinyurl.com/api-create.php?url=$longUrl"

    return withContext(Dispatchers.IO) {
      logger.info("running Dispatchers.IO : {}", Thread.currentThread().name)
      Request.Get(url).also {
        sleep(5000)
        //delay(5000)
      }.execute()
        .also {
          logger.info("TINY network call invoked")
        }.returnContent().asString().also {
          logger.info("returning {}", it)
        }
    }
  }
}


/**
22:26:34,726 INFO NullImpl - running : main
22:26:34,732 INFO DumbImpl - running : main
22:26:34,732 INFO IsgdImpl - running : main
22:26:34,743 INFO IsgdImpl$getShortUrl$2 - running Dispatchers.IO : DefaultDispatcher-worker-1
22:26:34,748 INFO TinyImpl - running : main
22:26:34,753 INFO TinyImpl$getShortUrl$2 - running Dispatchers.IO : DefaultDispatcher-worker-2
22:26:37,530 INFO IsgdImpl$getShortUrl$2 - ISGD network call invoked
22:26:37,535 INFO IsgdImpl$getShortUrl$2 - returning https://is.gd/EuvYes
22:26:40,114 INFO TinyImpl$getShortUrl$2 - TINY network call invoked
22:26:40,114 INFO TinyImpl$getShortUrl$2 - returning http://tinyurl.com/389lo
22:26:40,115 INFO UrlShorterServiceTest$testHedging$1 - result = https://is.gd/EuvYes
*/