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author | Ivan Topolnjak <ivantopo@gmail.com> | 2013-11-23 21:30:34 -0300 |
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committer | Ivan Topolnjak <ivantopo@gmail.com> | 2013-11-23 21:30:34 -0300 |
commit | 6ba7487204e0339437c7279e6330fc03419a2c5c (patch) | |
tree | eda414d575a20d4000d04f3f06207b6843919ca7 /kamon-trace/src/test/scala/kamon/FutureTracingSpec.scala | |
parent | 741ac431e7b156c782f5f02a29a17686912cb590 (diff) | |
download | Kamon-6ba7487204e0339437c7279e6330fc03419a2c5c.tar.gz Kamon-6ba7487204e0339437c7279e6330fc03419a2c5c.tar.bz2 Kamon-6ba7487204e0339437c7279e6330fc03419a2c5c.zip |
Put FutureTracing instrumentation in place, simpler and more explicit test
Diffstat (limited to 'kamon-trace/src/test/scala/kamon/FutureTracingSpec.scala')
-rw-r--r-- | kamon-trace/src/test/scala/kamon/FutureTracingSpec.scala | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/kamon-trace/src/test/scala/kamon/FutureTracingSpec.scala b/kamon-trace/src/test/scala/kamon/FutureTracingSpec.scala new file mode 100644 index 00000000..7ff1b96d --- /dev/null +++ b/kamon-trace/src/test/scala/kamon/FutureTracingSpec.scala @@ -0,0 +1,56 @@ +package kamon + +import scala.concurrent.{ExecutionContext, Await, Promise, Future} +import org.scalatest.{Matchers, OptionValues, WordSpec} +import org.scalatest.concurrent.{ScalaFutures, PatienceConfiguration} +import java.util.UUID +import scala.util.{Random, Success} +import scala.concurrent.duration._ +import java.util.concurrent.TimeUnit +import akka.actor.{Actor, ActorSystem} +import kamon.trace.{Trace, TraceContext} + + +class FutureTracingSpec extends WordSpec with Matchers with ScalaFutures with PatienceConfiguration with OptionValues { + + implicit val execContext = ExecutionContext.Implicits.global + + "a Future created with FutureTracing" should { + "capture the TraceContext available when created" which { + "must be available when executing the future's body" in new TraceContextFixture { + var future: Future[Option[TraceContext]] = _ + + Trace.withValue(testTraceContext) { + future = Future(Trace.context) + } + + whenReady(future)( ctxInFuture => + ctxInFuture should equal(testTraceContext) + ) + } + + "must be available when executing callbacks on the future" in new TraceContextFixture { + var future: Future[Option[TraceContext]] = _ + + Trace.withValue(testTraceContext) { + future = Future("Hello Kamon!") + // The TraceContext is expected to be available during all intermediate processing. + .map (_.length) + .flatMap(len => Future(len.toString)) + .map (s => Trace.context()) + } + + whenReady(future)( ctxInFuture => + ctxInFuture should equal(testTraceContext) + ) + } + } + } + + trait TraceContextFixture { + val random = new Random(System.nanoTime) + val testTraceContext = Some(TraceContext(Actor.noSender, random.nextInt)) + } +} + + |