Quiero probar mi actor akka. ¿Es posible probar cada caso de función de recepción?

def receive = {

  case msg: String =>
    println("SUCCESS" + msg)

  case user: VerifyIfUserExistActor =>
    implicit val timeout = Timeout(30 seconds)
    val future = platActor ? user
    val result = Await.result(future, timeout.duration).asInstanceOf[Users]
    sender ! result

  case ottDetails: OttDetails =>
    println("SUCCESS" + ottDetails)

}