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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 akka.testkit.TestKit
import akka.actor.{ Props, Actor, ActorSystem }
import org.scalatest.{ Matchers, WordSpecLike }
import akka.event.Logging.Warning
import scala.concurrent.duration._
import akka.pattern.ask
import akka.util.Timeout
import kamon.trace.{ Trace, ContextAware }
import org.scalatest.OptionValues._
class AskPatternTracingSpec extends TestKit(ActorSystem("ask-pattern-tracing-spec")) with WordSpecLike with Matchers {
"the AskPatternTracing" should {
"log a warning with a stack trace and TraceContext taken from the moment the ask was triggered" in new TraceContextFixture {
implicit val ec = system.dispatcher
implicit val timeout = Timeout(10 milliseconds)
val noReply = system.actorOf(Props[NoReply])
system.eventStream.subscribe(testActor, classOf[Warning])
within(500 milliseconds) {
val initialCtx = Trace.withContext(testTraceContext) {
noReply ? "hello"
Trace.context()
}
val warn = expectMsgPF() {
case warn: Warning if warn.message.toString.contains("Timeout triggered for ask pattern") ⇒ warn
}
val capturedCtx = warn.asInstanceOf[ContextAware].traceContext
capturedCtx should be('defined)
capturedCtx should equal(initialCtx)
}
}
}
}
class NoReply extends Actor {
def receive = {
case any ⇒
}
}
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