commit 3014d6eb7f6ed8cc61b9b26fe1c4454760dc8621
author Serhiy Storchaka <storchaka@gmail.com> Tue Jun 05 19:51:37 2018 +0300
committer GitHub <noreply@github.com> Tue Jun 05 19:51:37 2018 +0300
tree 531a6958e7540e50000df634d58f812b5dacbc77
parent bc3df70b266304f78ebe5eabead71cabd4738d12

[2.7] bpo-33767: Fix improper use of SystemError by mmap.mmap objects (GH-7381) (GH-7432)

Raise TypeError instead of SystemError for unsupported operations.
(cherry picked from commit e9e397605789b2a67b67558fbbe756b7b88934f5)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

Lib/test/test_mmap.py

diff --git a/Lib/test/test_mmap.py b/Lib/test/test_mmap.py
index 0350b3d..fc6d6e1 100644
--- a/Lib/test/test_mmap.py
+++ b/Lib/test/test_mmap.py
@@ -666,6 +666,13 @@
         self.assertRaises(ValueError, m.write_byte, 'b')
         self.assertRaises(ValueError, m.write, 'abc')
 
+    def test_concat_repeat_exception(self):
+        m = mmap.mmap(-1, 16)
+        with self.assertRaises(TypeError):
+            m + m
+        with self.assertRaises(TypeError):
+            m * 2
+
 
 class LargeMmapTests(unittest.TestCase):