Scala Play Framework - 在涉及 Akka 的 运行 测试中出现 "cannot enqueue after timer shutdown" 错误

Scala Play Framework - getting "cannot enqueue after timer shutdown" error when running tests that involve Akka

当尝试对我的代码(使用 Mockito)进行单元测试时,运行 是一个 Akka 调度程序,我不断得到 "cannot enqueue after timer shutdown"。

我的代码:

Global.scala

override def onStart(app: Application){
    Some(Akka.system.scheduler.schedule(23.hours, 24.hours) {
         println("I run all the time")
    })
}

TasksRepositorySpec.scala

def insertTestData() = {
    running(FakeApplication()) {
       //some code
    }
}

当我运行:

activator test

我得到:

[info] TasksRepositorySpec
[info] 
[error] ! 
[error]  cannot enqueue after timer shutdown (Scheduler.scala:270)
[error] akka.actor.LightArrayRevolverScheduler.schedule(Scheduler.scala:270)
[error] akka.actor.Scheduler$class.schedule(Scheduler.scala:79)
[error] akka.actor.LightArrayRevolverScheduler.schedule(Scheduler.scala:182)
[error] Global$.onStart(Global.scala:56)
[error] play.api.GlobalPlugin.onStart(GlobalSettings.scala:272)
[error] play.api.Play$$anonfun$start$$anonfun$apply$mcV$sp.apply(Play.scala:91)
[error] play.api.Play$$anonfun$start$$anonfun$apply$mcV$sp.apply(Play.scala:91)
[error] play.api.Plugins.foreach(Plugins.scala:57)
[error] play.api.Play$$anonfun$start.apply$mcV$sp(Play.scala:91)
[error] play.api.Play$$anonfun$start.apply(Play.scala:91)
[error] play.api.Play$$anonfun$start.apply(Play.scala:91)
[error] play.utils.Threads$.withContextClassLoader(Threads.scala:21)
[error] play.api.Play$.start(Play.scala:90)
[error] play.api.test.PlayRunners$class.running(Helpers.scala:41)
[error] play.api.test.Helpers$.running(Helpers.scala:363)
[error] repositories.TasksRepositorySpec.insertData(TasksRepositorySpec.scala:69)
[error] repositories.TasksRepositorySpec$$anonfun.apply$mcI$sp(TasksRepositorySpec.scala:88)
[error] repositories.TasksRepositorySpec$$anonfun.apply(TasksRepositorySpec.scala:88)
[error] repositories.TasksRepositorySpec$$anonfun.apply(TasksRepositorySpec.scala:88)

我用play 2.4

任何帮助将不胜感激

抱歉,我没有找到解决方案,只有一个解决方法。它包括使用伪造的 Global 对象进行测试,其中 onStart()onStop() 方法为空。

首先,您需要将 Global 对象拆分为特征和空对象:

Global.scala

object Global extends Global

trait Global extends GlobalSettings { ... }

然后在你的测试代码中,你可以创建一个假的Global:

Fake.scala

object FakeGlobal extends Global {
  override def onStart(app: Application): Unit = {}
  override def onStop(app: Application): Unit = {}
}

object Fake {
  // This has to be a method, cannot be a value
  def application() = FakeApplication(withGlobal = Some(FakeGlobal))
}

最后在你的测试中使用它:

TasksRepositorySpec.scala

def insertTestData() = {
  running(Fake.application()) {
    //some code
  }
}

对我有用。希望对您有所帮助!