在scala规范中同步before / after方法？

class TokenSearchTest extends Specification {
  "Dummy test should" should {
    "work" in new TokensSearch {
      // Do things that assume that the
      // before method has done its work.

      true must beTrue
    }
  }
}

trait TokensSearch extends BeforeAfter {
  lazy val elasticSearchTestHost = "http://localhost:9200/"
  lazy val elasticSearchTestIndex = elasticSearchTestHost + "test_index"
  def before = {
    println("Setting up tokens index.")
    val resultFuture = WS.url(elasticSearchTestIndex).put("")
    Await.result(resultFuture,5 seconds)
    resultFuture.map{ response => println("Put: " + response.json) }
  }
  def after = {
    println("Deleting tokens index.")
    val resultFuture = WS.url(elasticSearchTestIndex).delete()
    Await.result(resultFuture,5 seconds)
    resultFuture.map{ response => println("Delete: " + response.json) }
  }
}

如果我不包含Await.result,则before和after方法有时会交错,导致put和delete没有以正确的顺序发生(在put发生之前尝试删除)：

Delete: {"error":"IndexMissingException[[test_index] missing]","status":404}
Put: {"acknowledged":true}

我是scala的新手,所以不知道这是否是实现这种并发性的最佳方法,或者我是否误解了该测试的运行方式.

在这里使用等待好吗？有更常见的做法吗？还有其他意见吗？