Scala测试,如何从演员那里取得结果

创始人Onepiecepower

我有个问题。我正在尝试做一些scala测试。我的问题是我不知道如何使用方法的返回值来测试它是否向我返回了序列。我该怎么做?我的测试课是:(有效)

"The game actor" should {

    "accept a specific numbers of players and notify that the game is started with an initial state" in {
      val gameActor = TestActorRef[GameMatchActor](GameMatchActor.props(NUMBER_OF_PLAYERS))
      val player1 = TestProbe()
      val player2 = TestProbe()

      gameActor ! GamePlayers(Seq(GamePlayer("id1", "player1", player1.ref), GamePlayer("id2", "player2", player2.ref)))
      player1.expectMsgType[MatchFound]
      player1.send(gameActor, PlayerReadyServer("id1", player1.ref))
      player2.expectMsgType[MatchFound]
      player2.send(gameActor, PlayerReadyServer("id2", player2.ref))

      player1.expectMsgType[GamePlayersClient]
      player2.expectMsgType[GamePlayersClient]

    }
  }

而返回给我GamePlayersClient的方法是:

private def defineRoles(players: Seq[GamePlayer]): Seq[Player] = {
    var playersRole: Seq[Player] = Seq()
    val rand1 = Random.nextInt(players.length)
    val rand2 = Random.nextInt(players.length)

    for (n <- 0 until players.length) {
      n match {
        case n if n == rand1 || n == rand2 =>
          playersRole = playersRole :+ Impostor(players(n).id, players(n).username, Point2D(0,0))
        case _ => playersRole = playersRole :+ Crewmate(players(n).id, players(n).username, Point2D(0,0))
      }
    }
    playersRole
  }

和:

// watch the players with the new actor ref
    val playersRole = defineRoles(players)
    this.players.foreach(p => {
      p.actorRef ! GamePlayersClient(playersRole)
      context.watch(p.actorRef)
    })

因此,我该如何使用GamePlayersClient(playersRole)并搜索里面是否有一个玩家序列,其中一个是“船员”。谢谢

列维·拉姆西(Levi Ramsey)

您可以使用receive...方法之一TestProbe来收集GamePlayersClient发送到探针消息,然后使用ScalaTest的匹配器声明有关这些消息的内容。

例如,您可以替换

player1.expectMsgType[GamePlayersClient]

val gpcMessageOpt1: Option[GamePlayersClient] = Option(player1.receiveN(1)).flatMap {
  case g: GamePlayersClient => Some(g)
  case _ => None
}

gpcMessageOpt1 shouldNot be(empty) // effectively the same as the expectMessage

如果感兴趣的领域是playersRole,那么您可能有

// To my mind, it's generally OK to do unsafe things like get in a test...
gpcMessageOpt1.get.playersRole shouldNot be(empty)

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