Play Framework/Scala example source code file (PlayRunHookSpec.scala)

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

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

Play Framework tags/keywords

boolean, collection, hashmap, hookfirstmockexception, hookmockexception, hooksecondmockexception, hookthirdmockexception, mutable, play, play framework, playrunhook, playrunhookspec, throwable, unit

The PlayRunHookSpec.scala Play Framework example source code

/*
 * Copyright (C) 2009-2013 Typesafe Inc. <http://www.typesafe.com>
 */
package play

import org.specs2.mutable._
import scala.collection.mutable.HashMap

object PlayRunHookSpec extends Specification {

  "PlayRunHook runner" should {

    "provide implicit `run` which passes every hook to a provided function" in {
      val hooks = Seq.fill(3)(new PlayRunHook {})
      val executedHooks: HashMap[PlayRunHook, Boolean] = HashMap.empty

      hooks.run(hook => executedHooks += ((hook, true)))

      executedHooks.size must be equalTo(3)
    }

    "re-throw an exception on single hook failure" in {
      val executedHooks: HashMap[PlayRunHook, Boolean] = HashMap.empty
      class HookMockException extends Throwable

      val hooks = Seq.fill(3)(new PlayRunHook {
        executedHooks += ((this, true))
      }) :+ new PlayRunHook {
        override def beforeStarted(): Unit = throw new HookMockException()
      }

      hooks.run(_.beforeStarted()) must throwA[HookMockException]

      executedHooks.size must be equalTo(3)
    }

    "combine several thrown exceptions into a RunHookCompositeThrowable" in {
      val executedHooks: HashMap[PlayRunHook, Boolean] = HashMap.empty
      class HookFirstMockException extends Throwable
      class HookSecondMockException extends Throwable

      def createDummyHooks = new PlayRunHook {
        executedHooks += ((this, true))
      }

      val dummyHooks = Seq.fill(3)(createDummyHooks)

      val firstFailure = new PlayRunHook {
        override def beforeStarted(): Unit = throw new HookFirstMockException()
      }

      val lastFailure = new PlayRunHook {
        override def beforeStarted(): Unit = throw new HookSecondMockException()
      }

      val hooks = firstFailure +: dummyHooks :+ lastFailure

      hooks.run(_.beforeStarted()) must throwAn[RunHookCompositeThrowable].like {
        case e: Throwable =>
          e.getMessage must contain("HookFirstMockException")
          e.getMessage must contain("HookSecondMockException")
          e.getMessage must not contain("HookThirdMockException")
      }

      executedHooks.size must be equalTo(3)
    }
  }

}