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Akka/Scala example source code file (TestKitExtension.scala)

This example Akka source code file (TestKitExtension.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Akka and Scala source code examples by using tags.

All credit for the original source code belongs to; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Akka tags/keywords

actorsystem, akka, concurrent, defaulttimeout, duration, extendedactorsystem, extension, extensionid, finiteduration, singleexpectdefaulttimeout, test, testeventfilterleeway, testing, testkitextension, testkitsettings, time, timeout

The TestKitExtension.scala Akka example source code

 * Copyright (C) 2009-2014 Typesafe Inc. <>
package akka.testkit

import com.typesafe.config.Config
import akka.util.Timeout
import{ ExtensionId, ActorSystem, Extension, ExtendedActorSystem }
import scala.concurrent.duration.FiniteDuration

object TestKitExtension extends ExtensionId[TestKitSettings] {
  override def get(system: ActorSystem): TestKitSettings = super.get(system)
  def createExtension(system: ExtendedActorSystem): TestKitSettings = new TestKitSettings(system.settings.config)

class TestKitSettings(val config: Config) extends Extension {

  import akka.util.Helpers._

  val TestTimeFactor = config.getDouble("akka.test.timefactor").
    requiring(tf ⇒ !tf.isInfinite && tf > 0, "akka.test.timefactor must be positive finite double")
  val SingleExpectDefaultTimeout: FiniteDuration = config.getMillisDuration("akka.test.single-expect-default")
  val TestEventFilterLeeway: FiniteDuration = config.getMillisDuration("akka.test.filter-leeway")
  val DefaultTimeout: Timeout = Timeout(config.getMillisDuration("akka.test.default-timeout"))

Other Akka source code examples

Here is a short list of links related to this Akka TestKitExtension.scala source code file:

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