Issue #27358: Backported tests.
diff --git a/Lib/test/test_extcall.py b/Lib/test/test_extcall.py
index 6860751..4aa2dfc 100644
--- a/Lib/test/test_extcall.py
+++ b/Lib/test/test_extcall.py
@@ -201,6 +201,21 @@
...
TypeError: h() argument after ** must be a mapping, not function
+ >>> h(**[])
+ Traceback (most recent call last):
+ ...
+ TypeError: h() argument after ** must be a mapping, not list
+
+ >>> h(a=1, **h)
+ Traceback (most recent call last):
+ ...
+ TypeError: h() argument after ** must be a mapping, not function
+
+ >>> h(a=1, **[])
+ Traceback (most recent call last):
+ ...
+ TypeError: h() argument after ** must be a mapping, not list
+
>>> dir(**h)
Traceback (most recent call last):
...