1 files changed, 25 insertions, 0 deletions
diff --git a/Lib/test/test_call.py b/Lib/test/test_call.py
index 07355e8..a2eec41 100644
--- a/Lib/test/test_call.py
+++ b/Lib/test/test_call.py
@@ -11,6 +11,19 @@ import gc
 import contextlib
 
 
+class BadStr(str):
+    def __eq__(self, other):
+        return True
+    def __hash__(self):
+        # Guaranteed different hash
+        return str.__hash__(self) ^ 3
+
+    def __eq__(self, other):
+        return False
+    def __hash__(self):
+        return str.__hash__(self)
+
+
 class FunctionCalls(unittest.TestCase):
 
     def test_kwargs_order(self):
@@ -145,6 +158,18 @@ class CFunctionCallsErrorMessages(unittest.TestCase):
         self.assertRaisesRegex(TypeError, msg,
                                print, 0, sep=1, end=2, file=3, flush=4, foo=5)
 
+    def test_varargs18_kw(self):
+        # _PyArg_UnpackKeywordsWithVararg()
+        msg = r"invalid keyword argument for print\(\)$"
+        with self.assertRaisesRegex(TypeError, msg):
+            print(0, 1, **{BadStr('foo'): ','})
+
+    def test_varargs19_kw(self):
+        # _PyArg_UnpackKeywords()
+        msg = r"invalid keyword argument for round\(\)$"
+        with self.assertRaisesRegex(TypeError, msg):
+            round(1.75, **{BadStr('foo'): 1})
+
     def test_oldargs0_1(self):
         msg = r"keys\(\) takes no arguments \(1 given\)"
         self.assertRaisesRegex(TypeError, msg, {}.keys, 0)