diff options
Diffstat (limited to 'kamon-trace/src/test/scala/kamon/trace/instrumentation')
3 files changed, 178 insertions, 5 deletions
diff --git a/kamon-trace/src/test/scala/kamon/trace/instrumentation/ActorSystemMessagePassingInstrumentationSpec.scala b/kamon-trace/src/test/scala/kamon/trace/instrumentation/ActorSystemMessagePassingInstrumentationSpec.scala new file mode 100644 index 00000000..a845ad0c --- /dev/null +++ b/kamon-trace/src/test/scala/kamon/trace/instrumentation/ActorSystemMessagePassingInstrumentationSpec.scala @@ -0,0 +1,168 @@ +package kamon.trace.instrumentation + +import akka.testkit.{ImplicitSender, TestKit} +import akka.actor._ +import org.scalatest.WordSpecLike +import kamon.trace.Trace +import scala.util.control.NonFatal +import akka.actor.SupervisorStrategy.{Escalate, Stop, Restart, Resume} +import scala.concurrent.duration._ + +class ActorSystemMessagePassingInstrumentationSpec extends TestKit(ActorSystem("actor-message-passing-tracing-spec")) with WordSpecLike with ImplicitSender { + implicit val executionContext = system.dispatcher + + + "the system message passing instrumentation" should { + "keep the TraceContext while processing the Create message in top level actors" in new TraceContextFixture { + Trace.withContext(testTraceContext) { + system.actorOf(Props(new Actor { + + testActor ! Trace.context() + + def receive: Actor.Receive = { case any => } + })) + } + + expectMsg(testTraceContext) + } + + + "keep the TraceContext while processing the Create message in non top level actors" in new TraceContextFixture { + Trace.withContext(testTraceContext) { + system.actorOf(Props(new Actor { + def receive: Actor.Receive = { + case any => + context.actorOf(Props(new Actor { + + testActor ! Trace.context() + + def receive: Actor.Receive = { case any => } + })) + } + })) ! "any" + } + + expectMsg(testTraceContext) + } + + + "keep the TraceContext in the supervision cycle" when { + "the actor is resumed" in new TraceContextFixture { + val supervisor = supervisorWithDirective(Resume) + + Trace.withContext(testTraceContext) { + supervisor ! "fail" + } + + expectMsg(testTraceContext) // From the parent executing the supervision strategy + + // Ensure we didn't tie the actor with the context + supervisor ! "context" + expectMsg(None) + } + + "the actor is restarted" in new TraceContextFixture { + val supervisor = supervisorWithDirective(Restart, sendPreRestart = true, sendPostRestart = true) + + Trace.withContext(testTraceContext) { + supervisor ! "fail" + } + + expectMsg(testTraceContext) // From the parent executing the supervision strategy + expectMsg(testTraceContext) // From the preRestart hook + expectMsg(testTraceContext) // From the postRestart hook + + // Ensure we didn't tie the actor with the context + supervisor ! "context" + expectMsg(None) + } + + "the actor is stopped" in new TraceContextFixture { + val supervisor = supervisorWithDirective(Stop, sendPostStop = true) + + Trace.withContext(testTraceContext) { + supervisor ! "fail" + } + + expectMsg(testTraceContext) // From the parent executing the supervision strategy + expectMsg(testTraceContext) // From the postStop hook + expectNoMsg(1 second) + } + + "the failure is escalated" in new TraceContextFixture { + val supervisor = supervisorWithDirective(Escalate, sendPostStop = true) + + Trace.withContext(testTraceContext) { + supervisor ! "fail" + } + + expectMsg(testTraceContext) // From the parent executing the supervision strategy + expectMsg(testTraceContext) // From the grandparent executing the supervision strategy + expectMsg(testTraceContext) // From the postStop hook in the child + expectMsg(testTraceContext) // From the postStop hook in the parent + expectNoMsg(1 second) + } + } + } + + def supervisorWithDirective(directive: SupervisorStrategy.Directive, sendPreRestart: Boolean = false, sendPostRestart: Boolean = false, + sendPostStop: Boolean = false, sendPreStart: Boolean = false): ActorRef = { + class GrandParent extends Actor { + val child = context.actorOf(Props(new Parent)) + + override def supervisorStrategy: SupervisorStrategy = OneForOneStrategy() { + case NonFatal(throwable) => testActor ! Trace.context(); Stop + } + + def receive = { + case any => child forward any + } + } + + class Parent extends Actor { + val child = context.actorOf(Props(new Child)) + + override def supervisorStrategy: SupervisorStrategy = OneForOneStrategy() { + case NonFatal(throwable) => testActor ! Trace.context(); directive + } + + def receive: Actor.Receive = { + case any => child forward any + } + + override def postStop(): Unit = { + if(sendPostStop) testActor ! Trace.context() + super.postStop() + } + } + + class Child extends Actor { + def receive = { + case "fail" => 1/0 + case "context" => sender ! Trace.context() + } + + override def preRestart(reason: Throwable, message: Option[Any]): Unit = { + if(sendPreRestart) testActor ! Trace.context() + super.preRestart(reason, message) + } + + override def postRestart(reason: Throwable): Unit = { + if(sendPostRestart) testActor ! Trace.context() + super.postRestart(reason) + } + + override def postStop(): Unit = { + if(sendPostStop) testActor ! Trace.context() + super.postStop() + } + + override def preStart(): Unit = { + if(sendPreStart) testActor ! Trace.context() + super.preStart() + } + } + + system.actorOf(Props(new GrandParent)) + } +} diff --git a/kamon-trace/src/test/scala/kamon/trace/instrumentation/FutureTracingSpec.scala b/kamon-trace/src/test/scala/kamon/trace/instrumentation/FutureTracingSpec.scala index 339fe6be..a5554836 100644 --- a/kamon-trace/src/test/scala/kamon/trace/instrumentation/FutureTracingSpec.scala +++ b/kamon-trace/src/test/scala/kamon/trace/instrumentation/FutureTracingSpec.scala @@ -58,10 +58,5 @@ class FutureTracingSpec extends WordSpec with Matchers with ScalaFutures with Pa } } } - - trait TraceContextFixture { - val random = new Random(System.nanoTime) - val testTraceContext = Some(TraceContext(Actor.noSender, random.nextInt)) - } } diff --git a/kamon-trace/src/test/scala/kamon/trace/instrumentation/TraceContextFixture.scala b/kamon-trace/src/test/scala/kamon/trace/instrumentation/TraceContextFixture.scala new file mode 100644 index 00000000..62f7ec84 --- /dev/null +++ b/kamon-trace/src/test/scala/kamon/trace/instrumentation/TraceContextFixture.scala @@ -0,0 +1,10 @@ +package kamon.trace.instrumentation + +import scala.util.Random +import kamon.trace.TraceContext +import akka.actor.Actor + +trait TraceContextFixture { + val random = new Random(System.nanoTime) + val testTraceContext = Some(TraceContext(Actor.noSender, random.nextInt)) +}
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