scala - java.lang.RuntimeException : There is no started application error, 从 Scala 工作表中测试类时

Question

我想通过从 Scala 工作表运行它来测试一个类。运行此测试脚本时:

import ping.GcmRestServer

val server = new GcmRestServer("AIzaSyCOn...")
server.send(List("dcGKzDg5VOQ:APA91bHNUDaBj01th..."), Map(
  "message" -> "Test Message",
  "title" -> "Test Title"
))

测试类 GcmRestServer 是

package ping

import play.api.Logger
import play.api.libs.ws.WS
import play.api.libs.json.Json
/**
  * Created by Lukasz on 26.02.2016.
  */
class GcmRestServer(val key: String) {

  def send(ids: List[String], data: Map[String, String]) = {
    import play.api.Play.current
    import scala.concurrent.ExecutionContext.Implicits.global

    val body = Json.obj(
      "registration_ids" -> ids,
      "data" -> data
    )

    WS.url("https://android.googleapis.com/gcm/send")
      .withHeaders(
        "Authorization" -> s"key=$key",
        "Content-type" -> "application/json"
      )
      .post(body)
      .map { response => Logger.debug("Result: " + response.body)}
  }
}

给出以下结果:

import ping.GcmRestServer

server: ping.GcmRestServer = ping.GcmRestServer@34860db2
java.lang.RuntimeException: There is no started application
    at scala.sys.package$.error(test.sc2.tmp:23)
    at play.api.Play$$anonfun$current$1.apply(test.sc2.tmp:82)
    at play.api.Play$$anonfun$current$1.apply(test.sc2.tmp:82)
    at scala.Option.getOrElse(test.sc2.tmp:117)
    at play.api.Play$.current(test.sc2.tmp:82)
    at ping.GcmRestServer.send(test.sc2.tmp:16)
    at #worksheet#.get$$instance$$res0(test.sc2.tmp:4)
    at #worksheet#.#worksheet#(test.sc2.tmp:19)

有人可以解释我做错了什么，以及如何解决这个问题？

Answer 1

线路import play.api.Play.current需要一个正在运行的 Play 应用程序。

我从未使用过 Scala 工作表，但似乎是同样的问题。

在测试中，解决方案是运行一个虚假的应用程序，如 written in the documentation .