diff --git a/spec/fixtures/pass/1.pp b/spec/fixtures/pass/1.pp
index 5b2d6b0..148854c 100644
--- a/spec/fixtures/pass/1.pp
+++ b/spec/fixtures/pass/1.pp
@@ -52,4 +52,12 @@
         'stuff'
       );
   }
+
+  $groups = if $arg1 { ['wheel'] } else { [] }
+
+  $nested_groups = if $arg1 {
+      ['wheel']
+    } else {
+      []
+    }
 }