diff --git a/tests/basics/subclass_native_iter.py b/tests/basics/subclass_native_iter.py
new file mode 100644
index 0000000000..0f6b369ad1
--- /dev/null
+++ b/tests/basics/subclass_native_iter.py
@@ -0,0 +1,7 @@
+# test subclassing a native type which can be iterated over
+
+class mymap(map):
+    pass
+
+m = mymap(lambda x: x + 10, range(4))
+print(list(m))