1 files changed, 95 insertions, 0 deletions
diff --git a/kamon-core/src/test/scala/kamon/trace/TraceContextManipulationSpec.scala b/kamon-core/src/test/scala/kamon/trace/TraceContextManipulationSpec.scala
new file mode 100644
index 00000000..4d0049f1
--- /dev/null
+++ b/kamon-core/src/test/scala/kamon/trace/TraceContextManipulationSpec.scala
@@ -0,0 +1,95 @@
+package kamon.trace
+
+import akka.actor.ActorSystem
+import akka.testkit.{ ImplicitSender, TestKitBase }
+import com.typesafe.config.ConfigFactory
+import kamon.trace.TraceContext.SegmentIdentity
+import org.scalatest.{ Matchers, WordSpecLike }
+
+class TraceContextManipulationSpec extends TestKitBase with WordSpecLike with Matchers with ImplicitSender {
+  implicit lazy val system: ActorSystem = ActorSystem("trace-metrics-spec", ConfigFactory.parseString(
+    """
+      |kamon.metrics {
+      |  tick-interval = 1 hour
+      |  filters = [
+      |    {
+      |      trace {
+      |        includes = [ "*" ]
+      |        excludes = [ "non-tracked-trace"]
+      |      }
+      |    }
+      |  ]
+      |  precision {
+      |    default-histogram-precision {
+      |      highest-trackable-value = 3600000000000
+      |      significant-value-digits = 2
+      |    }
+      |
+      |    default-min-max-counter-precision {
+      |      refresh-interval = 1 second
+      |      highest-trackable-value = 999999999
+      |      significant-value-digits = 2
+      |    }
+      |  }
+      |}
+    """.stripMargin))
+
+  "the TraceRecorder api" should {
+    "allow starting a trace within a specified block of code, and only within that block of code" in {
+      val createdContext = TraceRecorder.withNewTraceContext("start-context") {
+        TraceRecorder.currentContext should not be empty
+        TraceRecorder.currentContext.get
+      }
+
+      TraceRecorder.currentContext shouldBe empty
+      createdContext.name shouldBe ("start-context")
+    }
+
+    "allow starting a trace within a specified block of code, providing a trace-token and only within that block of code" in {
+      val createdContext = TraceRecorder.withNewTraceContext("start-context-with-token", Some("token-1")) {
+        TraceRecorder.currentContext should not be empty
+        TraceRecorder.currentContext.get
+      }
+
+      TraceRecorder.currentContext shouldBe empty
+      createdContext.name shouldBe ("start-context-with-token")
+      createdContext.token should be("token-1")
+    }
+
+    "allow providing a TraceContext and make it available within a block of code" in {
+      val createdContext = TraceRecorder.withNewTraceContext("manually-provided-trace-context") { TraceRecorder.currentContext }
+
+      TraceRecorder.currentContext shouldBe empty
+      TraceRecorder.withTraceContext(createdContext) {
+        TraceRecorder.currentContext should be(createdContext)
+      }
+
+      TraceRecorder.currentContext shouldBe empty
+    }
+
+    "allow renaming a trace" in {
+      val createdContext = TraceRecorder.withNewTraceContext("trace-before-rename") {
+        TraceRecorder.rename("renamed-trace")
+        TraceRecorder.currentContext.get
+      }
+
+      TraceRecorder.currentContext shouldBe empty
+      createdContext.name shouldBe ("renamed-trace")
+    }
+
+    "allow creating a segment within a trace" in {
+      val createdContext = TraceRecorder.withNewTraceContext("trace-with-segments") {
+        val segmentHandle = TraceRecorder.startSegment(TraceManipulationTestSegment("segment-1"))
+
+        TraceRecorder.currentContext.get
+      }
+
+      TraceRecorder.currentContext shouldBe empty
+      createdContext.name shouldBe ("trace-with-segments")
+
+    }
+  }
+
+  case class TraceManipulationTestSegment(name: String) extends SegmentIdentity
+
+}