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Diffstat (limited to 'Lib/test/test_itertools.py')
| -rw-r--r-- | Lib/test/test_itertools.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py index 8cdc597..66e307d 100644 --- a/Lib/test/test_itertools.py +++ b/Lib/test/test_itertools.py @@ -930,6 +930,14 @@ class TestBasicOps(unittest.TestCase): del a self.assertRaises(ReferenceError, getattr, p, '__class__') + # Issue 13454: Crash when deleting backward iterator from tee() + def test_tee_del_backward(self): + forward, backward = tee(range(20000000)) + for i in forward: + pass + + del backward + def test_StopIteration(self): self.assertRaises(StopIteration, next, zip()) |