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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.instrumentation.akka
import akka.actor.{ Actor, ActorSystem, Props }
import akka.event.Logging.Warning
import akka.pattern.ask
import akka.testkit.TestKitBase
import akka.util.Timeout
import com.typesafe.config.ConfigFactory
import kamon.trace.{ TraceContextAware, TraceRecorder }
import org.scalatest.{ Matchers, WordSpecLike }
import scala.concurrent.duration._
class AskPatternInstrumentationSpec extends TestKitBase with WordSpecLike with Matchers {
implicit lazy val system: ActorSystem = ActorSystem("ask-pattern-tracing-spec", ConfigFactory.parseString(
"""
|kamon {
| trace {
| ask-pattern-tracing = on
| }
|}
""".stripMargin))
"the AskPatternTracing" should {
"log a warning with a stack trace and TraceContext taken from the moment the ask was triggered" in {
implicit val ec = system.dispatcher
implicit val timeout = Timeout(10 milliseconds)
val noReply = system.actorOf(Props[NoReply])
system.eventStream.subscribe(testActor, classOf[Warning])
val testTraceContext = TraceRecorder.withNewTraceContext("ask-timeout-warning") {
noReply ? "hello"
TraceRecorder.currentContext
}
val warn = expectMsgPF() {
case warn: Warning if warn.message.toString.contains("Timeout triggered for ask pattern") ⇒ warn
}
val capturedCtx = warn.asInstanceOf[TraceContextAware].traceContext
capturedCtx should be('defined)
capturedCtx should equal(testTraceContext)
}
}
}
class NoReply extends Actor {
def receive = {
case any ⇒
}
}
|
