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authorIvan Topolnak <itopolnak@despegar.com>2014-01-02 18:09:53 -0300
committerIvan Topolnak <itopolnak@despegar.com>2014-01-13 17:37:20 -0300
commit7a10c0ef2a6566229e8571f6d385ca2ff794cc20 (patch)
treececd7ce6eb7a71f967eaa1605615780fa94d346c /kamon-core/src/test/scala/kamon/trace/instrumentation/ActorMessagePassingTracingSpec.scala
parent54143e4af6182b967736abc60a7fb20c88dd6587 (diff)
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integrate trace and metrics into the base project
Diffstat (limited to 'kamon-core/src/test/scala/kamon/trace/instrumentation/ActorMessagePassingTracingSpec.scala')
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diff --git a/kamon-core/src/test/scala/kamon/trace/instrumentation/ActorMessagePassingTracingSpec.scala b/kamon-core/src/test/scala/kamon/trace/instrumentation/ActorMessagePassingTracingSpec.scala
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+/* ===================================================
+ * Copyright © 2013 the kamon project <http://kamon.io/>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ========================================================== */
+package kamon.trace.instrumentation
+
+import org.scalatest.{ WordSpecLike, Matchers }
+import akka.actor.{ ActorRef, Actor, Props, ActorSystem }
+
+import akka.testkit.{ ImplicitSender, TestKit }
+import kamon.trace.Trace
+import akka.pattern.{ pipe, ask }
+import akka.util.Timeout
+import scala.concurrent.duration._
+import scala.concurrent.{ Await, Future }
+import akka.routing.RoundRobinRouter
+import kamon.trace.TraceContext
+
+class ActorMessagePassingTracingSpec extends TestKit(ActorSystem("actor-message-passing-tracing-spec")) with WordSpecLike with ImplicitSender {
+ implicit val executionContext = system.dispatcher
+
+ "the message passing instrumentation" should {
+ "propagate the TraceContext using bang" in new TraceContextEchoFixture {
+ Trace.withContext(testTraceContext) {
+ ctxEchoActor ! "test"
+ }
+
+ expectMsg(testTraceContext)
+ }
+
+ "propagate the TraceContext using tell" in new TraceContextEchoFixture {
+ Trace.withContext(testTraceContext) {
+ ctxEchoActor.tell("test", testActor)
+ }
+
+ expectMsg(testTraceContext)
+ }
+
+ "propagate the TraceContext using ask" in new TraceContextEchoFixture {
+ implicit val timeout = Timeout(1 seconds)
+ Trace.withContext(testTraceContext) {
+ // The pipe pattern use Futures internally, so FutureTracing test should cover the underpinnings of it.
+ (ctxEchoActor ? "test") pipeTo (testActor)
+ }
+
+ expectMsg(testTraceContext)
+ }
+
+ "propagate the TraceContext to actors behind a router" in new RoutedTraceContextEchoFixture {
+ Trace.withContext(testTraceContext) {
+ ctxEchoActor ! "test"
+ }
+
+ expectMsg(testTraceContext)
+ }
+ }
+
+ trait TraceContextEchoFixture {
+ val testTraceContext = Some(Trace.newTraceContext(""))
+ val ctxEchoActor = system.actorOf(Props[TraceContextEcho])
+ }
+
+ trait RoutedTraceContextEchoFixture extends TraceContextEchoFixture {
+ override val ctxEchoActor = system.actorOf(Props[TraceContextEcho].withRouter(RoundRobinRouter(nrOfInstances = 1)))
+ }
+}
+
+class TraceContextEcho extends Actor {
+ def receive = {
+ case msg: String ⇒ sender ! Trace.context()
+ }
+}
+