add a test for an assertion with tuple msg

diff --git a/Lib/test/test_raise.py b/Lib/test/test_raise.py
index e02c1af1314d3dc51bc99b9fd24a41c08ca23040..92c50c79ee168701e040b1d8979a26b1efc7376f 100644 (file)
--- a/Lib/test/test_raise.py
+++ b/Lib/test/test_raise.py
@@ -130,6 +130,13 @@ class TestRaise(unittest.TestCase):
         with self.assertRaises(TypeError):
             raise MyException
 
+    def test_assert_with_tuple_arg(self):
+        try:
+            assert False, (3,)
+        except AssertionError as e:
+            self.assertEqual(str(e), "(3,)")
+
+
 
 class TestCause(unittest.TestCase):
     def test_invalid_cause(self):