Merge pull request #1 from ivantopo/wip/context-management-reloaded

remove context management from the Tracer

1 files changed, 41 insertions, 0 deletions

diff --git a/kamon-core/src/test/scala/kamon/context/ThreadLocalStorageSpec.scala b/kamon-core/src/test/scala/kamon/context/ThreadLocalStorageSpec.scala
new file mode 100644
index 00000000..39f316ba
--- /dev/null
+++ b/kamon-core/src/test/scala/kamon/context/ThreadLocalStorageSpec.scala
@@ -0,0 +1,41 @@
+package kamon.context
+
+
+import org.scalatest.{Matchers, WordSpec}
+
+class ThreadLocalStorageSpec extends WordSpec with Matchers {
+
+  "the Storage.ThreadLocal implementation of Context storage" should {
+    "return a empty context when no context has been set" in {
+      TLS.current() shouldBe Context.Empty
+    }
+
+    "return the empty value for keys that have not been set in the context" in {
+      TLS.current().get(TestKey) shouldBe 42
+      TLS.current().get(AnotherKey) shouldBe 99
+      TLS.current().get(BroadcastKey) shouldBe "i travel around"
+
+      ScopeWithKey.get(TestKey) shouldBe 43
+      ScopeWithKey.get(AnotherKey) shouldBe 99
+      ScopeWithKey.get(BroadcastKey) shouldBe "i travel around"
+    }
+
+    "allow setting a context as current and remove it when closing the Scope" in {
+      TLS.current() shouldBe Context.Empty
+
+      val scope = TLS.store(ScopeWithKey)
+        TLS.current() shouldBe theSameInstanceAs(ScopeWithKey)
+      scope.close()
+
+      TLS.current() shouldBe Context.Empty
+    }
+
+
+  }
+
+  val TLS: Storage = new Storage.ThreadLocal
+  val TestKey = Key.local("test-key", 42)
+  val AnotherKey = Key.local("another-key", 99)
+  val BroadcastKey = Key.broadcast("broadcast", "i travel around")
+  val ScopeWithKey = Context.create().withKey(TestKey, 43)
+}