diff --git a/test/completion/std.py b/test/completion/std.py
index c4ed8c5a..1f19dd3f 100644
--- a/test/completion/std.py
+++ b/test/completion/std.py
@@ -2,6 +2,17 @@
 std library stuff
 """
 
+# -----------------
+# builtins
+# -----------------
+arr = ['']
+
+#? int()
+sorted(arr)[0]
+
+#? str()
+next(reversed(arr))
+
 # -----------------
 # re
 # -----------------