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author | Serhiy Storchaka <storchaka@gmail.com> | 2015-10-14 16:21:24 (GMT) |
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committer | Serhiy Storchaka <storchaka@gmail.com> | 2015-10-14 16:21:24 (GMT) |
commit | 992ec46acc1267729da141f683f2594f00ba9f57 (patch) | |
tree | e3a6ac322df5d1d565732dd4381845e535073312 /Lib/test | |
parent | c1e98de7be2f6d1d34df36b37e45f97ed209c847 (diff) | |
download | cpython-992ec46acc1267729da141f683f2594f00ba9f57.zip cpython-992ec46acc1267729da141f683f2594f00ba9f57.tar.gz cpython-992ec46acc1267729da141f683f2594f00ba9f57.tar.bz2 |
Issue #25406: Fixed a bug in C implementation of OrderedDict.move_to_end()
that caused segmentation fault or hang in iterating after moving several
items to the start of ordered dict.
Diffstat (limited to 'Lib/test')
-rw-r--r-- | Lib/test/test_collections.py | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py index 4124f91..3ed3abdf 100644 --- a/Lib/test/test_collections.py +++ b/Lib/test/test_collections.py @@ -1995,6 +1995,20 @@ class OrderedDictTests: with self.assertRaises(KeyError): od.move_to_end('x', 0) + def test_move_to_end_issue25406(self): + OrderedDict = self.module.OrderedDict + od = OrderedDict.fromkeys('abc') + od.move_to_end('c', last=False) + self.assertEqual(list(od), list('cab')) + od.move_to_end('a', last=False) + self.assertEqual(list(od), list('acb')) + + od = OrderedDict.fromkeys('abc') + od.move_to_end('a') + self.assertEqual(list(od), list('bca')) + od.move_to_end('c') + self.assertEqual(list(od), list('bac')) + def test_sizeof(self): OrderedDict = self.module.OrderedDict # Wimpy test: Just verify the reported size is larger than a regular dict |