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| author | Antoine Pitrou <solipsis@pitrou.net> | 2016-12-27 13:23:43 (GMT) |
|---|---|---|
| committer | Antoine Pitrou <solipsis@pitrou.net> | 2016-12-27 13:23:43 (GMT) |
| commit | d741ed492f17609109432f1bccac0c019a05471b (patch) | |
| tree | 5b4425dfb7360f55993971d1b2fc9ebe7d1f00fa /Lib/test/test_weakref.py | |
| parent | 34d0ac8027e23609e24588735b37b8d5a55f7223 (diff) | |
| parent | e10ca3a0fe10d825689179e9958c70aef01f4230 (diff) | |
| download | cpython-d741ed492f17609109432f1bccac0c019a05471b.zip cpython-d741ed492f17609109432f1bccac0c019a05471b.tar.gz cpython-d741ed492f17609109432f1bccac0c019a05471b.tar.bz2 | |
Issue #28427: old keys should not remove new values from
WeakValueDictionary when collecting from another thread.
Diffstat (limited to 'Lib/test/test_weakref.py')
| -rw-r--r-- | Lib/test/test_weakref.py | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Lib/test/test_weakref.py b/Lib/test/test_weakref.py index 9341c6d..43cf2c0 100644 --- a/Lib/test/test_weakref.py +++ b/Lib/test/test_weakref.py @@ -1676,6 +1676,18 @@ class MappingTestCase(TestBase): x = d.pop(10, 10) self.assertIsNot(x, None) # we never put None in there! + def test_threaded_weak_valued_consistency(self): + # Issue #28427: old keys should not remove new values from + # WeakValueDictionary when collecting from another thread. + d = weakref.WeakValueDictionary() + with collect_in_thread(): + for i in range(200000): + o = RefCycle() + d[10] = o + # o is still alive, so the dict can't be empty + self.assertEqual(len(d), 1) + o = None # lose ref + from test import mapping_tests |