玩！ Scala：如何在测试时禁用在应用程序启动时加载的actor模块？

Question

I load some actors at the beginning of my Play! 2.5 application like this:

class Module extends AbstractModule with AkkaGuiceSupport with ScalaModule {
  override def configure() = {
    bindActor[MainSupervisor]("main-supervisor")
  }
}

The problem is that when I run my tests I got a lot a logs (and unnecessary calls) from the loaded actor (and the entire cluster and remote system) like

[INFO ] a.r.Remoting: Starting remoting 
[INFO ] a.r.Remoting: Remoting started; listening on addresses :[akka.tcp://application@127.0.0.1:41496] 
[INFO ] a.r.Remoting: Remoting now listens on addresses: [akka.tcp://application@127.0.0.1:41496] 

I have, for instance, a class that I test where I don't need any actor, but I don't find any way to disable them (or even better the entire actor system).

What I have tried is:

lazy val appWithoutActorsBuilder = new GuiceApplicationBuilder()
  .disable[ActorSystem]
  .disable[MainSupervisor]
  .build()
lazy val injectorWithoutActors = appWithoutActorsBuilder.injector
lazy val wSClientWithoutActors = injectorWithoutActors.instanceOf[WSClient]
lazy val ec = scala.concurrent.ExecutionContext.Implicits.global
lazy val facebookAPI = new FacebookAPI(wSClientWithoutActors, ec)

But when I test the FacebookAPI methods (eg facebookAPI.method(...) mustBe ... ) I still see the logs from Akka. What can I do in order to avoid it?

Answer 1

You have to disable your module instead of your actor. So, considering that you have this class:

package com.acme.modules

class Module extends AbstractModule with AkkaGuiceSupport with ScalaModule {
  override def configure() = {
    bindActor[MainSupervisor]("main-supervisor")
  }
}

And that you are registering it at your conf/application.conf like this:

play.modules.enabled += "com.acme.modules.Module"

Then, at your tests, your have to do the following:

lazy val appWithoutActorsBuilder = new GuiceApplicationBuilder()
  .disable[com.acme.modules.Module]
  .build()