refactor topLevelKeys extension on Config

1 files changed, 36 insertions, 0 deletions

diff --git a/kamon-core/src/test/scala/kamon/UtilsOnConfigSpec.scala b/kamon-core/src/test/scala/kamon/UtilsOnConfigSpec.scala
new file mode 100644
index 00000000..8b0e0790
--- /dev/null
+++ b/kamon-core/src/test/scala/kamon/UtilsOnConfigSpec.scala
@@ -0,0 +1,36 @@
+package kamon
+
+import com.typesafe.config.ConfigFactory
+import org.scalatest.{Matchers, WordSpec}
+
+class UtilsOnConfigSpec extends WordSpec with Matchers {
+  val config = ConfigFactory.parseString(
+    """
+      | kamon.test {
+      |   configuration-one {
+      |     setting = value
+      |     other-setting = other-value
+      |   }
+      |
+      |   "config.two" {
+      |     setting = value
+      |   }
+      | }
+    """.stripMargin
+  )
+
+  "the utils on config syntax" should {
+    "list all top level keys with a configuration" in {
+      config.getConfig("kamon.test").topLevelKeys should contain only("configuration-one", "config.two")
+    }
+
+    "create a map from top level keys to the inner configuration objects"in {
+      val extractedConfigurations = config.getConfig("kamon.test").configurations
+
+      extractedConfigurations.keys should contain only("configuration-one", "config.two")
+      extractedConfigurations("configuration-one").topLevelKeys should contain only("setting", "other-setting")
+      extractedConfigurations("config.two").topLevelKeys should contain only("setting")
+    }
+  }
+
+}