diff options
Diffstat (limited to 'kamon-scala/src/test/scala/kamon/scalaz')
-rw-r--r-- | kamon-scala/src/test/scala/kamon/scalaz/instrumentation/FutureInstrumentationSpec.scala | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/kamon-scala/src/test/scala/kamon/scalaz/instrumentation/FutureInstrumentationSpec.scala b/kamon-scala/src/test/scala/kamon/scalaz/instrumentation/FutureInstrumentationSpec.scala new file mode 100644 index 00000000..ba8fa18c --- /dev/null +++ b/kamon-scala/src/test/scala/kamon/scalaz/instrumentation/FutureInstrumentationSpec.scala @@ -0,0 +1,64 @@ +/* =================================================== + * 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.scalaz.instrumentation + +import java.util.concurrent.Executors + +import kamon.testkit.BaseKamonSpec +import kamon.trace.TraceContext +import org.scalatest.OptionValues +import org.scalatest.concurrent.{ PatienceConfiguration, ScalaFutures } + +import scalaz.concurrent.Future + +class FutureInstrumentationSpec extends BaseKamonSpec("future-instrumentation-spec") with ScalaFutures + with PatienceConfiguration with OptionValues { + + implicit val execContext = Executors.newCachedThreadPool() + + "a Future created with FutureTracing" should { + "capture the TraceContext available when created" which { + "must be available when executing the future's body" in { + + val (future, testTraceContext) = TraceContext.withContext(newContext("future-body")) { + val future = Future(TraceContext.currentContext).start + + (future, TraceContext.currentContext) + } + + val ctxInFuture = future.run + ctxInFuture should equal(testTraceContext) + } + + "must be available when executing callbacks on the future" in { + + val (future, testTraceContext) = TraceContext.withContext(newContext("future-body")) { + val future = Future("Hello Kamon!") + // The TraceContext is expected to be available during all intermediate processing. + .map(_.length) + .flatMap(len ⇒ Future(len.toString)) + .map(s ⇒ TraceContext.currentContext) + + (future.start, TraceContext.currentContext) + } + + val ctxInFuture = future.run + ctxInFuture should equal(testTraceContext) + } + } + } +} + |