1 files changed, 7 insertions, 0 deletions
diff --git a/src/test/scala/chiselTests/experimental/hierarchy/Examples.scala b/src/test/scala/chiselTests/experimental/hierarchy/Examples.scala
index aff0a771..fa26cbde 100644
--- a/src/test/scala/chiselTests/experimental/hierarchy/Examples.scala
+++ b/src/test/scala/chiselTests/experimental/hierarchy/Examples.scala
@@ -47,6 +47,13 @@ object Examples {
     val addOneDef = Seq.fill(3)(Definition(new AddOne))
     out := in + 1.U
   }
+  @instantiable
+  class AddOneBlackBox extends BlackBox {
+    @public val io = IO(new Bundle {
+      val in = Input(UInt(32.W))
+      val out = Output(UInt(32.W))
+    })
+  }
 
   @instantiable
   class AddTwo extends Module {