1 files changed, 12 insertions, 0 deletions
diff --git a/src/test/scala/chisel3/testers/TestUtils.scala b/src/test/scala/chisel3/testers/TestUtils.scala
index 12712bf7..c72c779a 100644
--- a/src/test/scala/chisel3/testers/TestUtils.scala
+++ b/src/test/scala/chisel3/testers/TestUtils.scala
@@ -3,10 +3,22 @@
 package chisel3.testers
 
 import TesterDriver.Backend
+import chisel3.{Bundle, RawModule}
+import chisel3.internal.firrtl.Circuit
+import chisel3.stage.ChiselStage
 import firrtl.AnnotationSeq
 
 object TestUtils {
   // Useful because TesterDriver.Backend is chisel3 package private
   def containsBackend(annos: AnnotationSeq): Boolean =
     annos.collectFirst { case b: Backend => b }.isDefined
+
+  // Allows us to check that the compiler plugin cloneType is actually working
+  val usingPlugin: Boolean = (new Bundle { def check = _usingPlugin }).check
+  def elaborateNoReflectiveAutoCloneType(f: => RawModule): Circuit = {
+    ChiselStage.elaborate {
+      chisel3.internal.Builder.allowReflectiveAutoCloneType = !usingPlugin
+      f
+    }
+  }
 }