1 files changed, 72 insertions, 0 deletions
diff --git a/kamon-core-tests/src/test/scala/kamon/metric/FilterSpec.scala b/kamon-core-tests/src/test/scala/kamon/metric/FilterSpec.scala
new file mode 100644
index 00000000..cda76dc2
--- /dev/null
+++ b/kamon-core-tests/src/test/scala/kamon/metric/FilterSpec.scala
@@ -0,0 +1,72 @@
+package kamon
+package metric
+
+import com.typesafe.config.ConfigFactory
+import org.scalatest.{Matchers, WordSpec}
+
+
+class FilterSpec extends WordSpec with Matchers {
+  val testConfig = ConfigFactory.parseString(
+    """
+      |kamon.util.filters {
+      |
+      |  some-filter {
+      |    includes = ["**"]
+      |    excludes = ["not-me"]
+      |  }
+      |
+      |  only-includes {
+      |    includes = ["only-me"]
+      |  }
+      |
+      |  only-excludes {
+      |    excludes = ["not-me"]
+      |  }
+      |
+      |  specific-rules {
+      |    includes = ["glob:/user/**", "regex:test-[0-5]"]
+      |  }
+      |
+      |  "filter.with.quotes" {
+      |    includes = ["**"]
+      |    excludes = ["not-me"]
+      |  }
+      |}
+    """.stripMargin
+  )
+
+  Kamon.reconfigure(testConfig.withFallback(Kamon.config()))
+
+  "the entity filters" should {
+    "reject anything that doesn't match any configured filter" in {
+      Kamon.filter("not-a-filter", "hello") shouldBe false
+    }
+
+    "evaluate patterns for filters with includes and excludes" in {
+      Kamon.filter("some-filter", "anything") shouldBe true
+      Kamon.filter("some-filter", "some-other") shouldBe true
+      Kamon.filter("some-filter", "not-me") shouldBe false
+    }
+
+    "allow configuring includes only or excludes only for any filter" in {
+      Kamon.filter("only-includes", "only-me") shouldBe true
+      Kamon.filter("only-includes", "anything") shouldBe false
+      Kamon.filter("only-excludes", "any-other") shouldBe false
+      Kamon.filter("only-excludes", "not-me") shouldBe false
+    }
+
+    "allow to explicitly decide whether patterns are treated as Glob or Regex" in {
+      Kamon.filter("specific-rules", "/user/accepted") shouldBe true
+      Kamon.filter("specific-rules", "/other/rejected/") shouldBe false
+      Kamon.filter("specific-rules", "test-5") shouldBe true
+      Kamon.filter("specific-rules", "test-6") shouldBe false
+    }
+
+    "allow filters with quoted names" in {
+      Kamon.filter("filter.with.quotes", "anything") shouldBe true
+      Kamon.filter("filter.with.quotes", "some-other") shouldBe true
+      Kamon.filter("filter.with.quotes", "not-me") shouldBe false
+    }
+
+  }
+}