[iter] Accept pointer in hb_map()
diff --git a/src/test-iter.cc b/src/test-iter.cc
index f29166f..1e721ae 100644
--- a/src/test-iter.cc
+++ b/src/test-iter.cc
@@ -177,9 +177,14 @@
   hb_array_t<hb_vector_t<int>> pa;
   pa->as_array ();
 
+  hb_map_t m;
+
   + hb_iter (src)
-  | hb_map (hb_identity)
+  | hb_map (m)
+  | hb_map (&m)
   | hb_filter ()
+  | hb_filter (st)
+  | hb_filter (&st)
   | hb_filter (hb_bool)
   | hb_filter (hb_bool, hb_identity)
   | hb_sink (st)