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author | Benjamin Peterson <benjamin@python.org> | 2012-04-23 15:24:50 (GMT) |
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committer | Benjamin Peterson <benjamin@python.org> | 2012-04-23 15:24:50 (GMT) |
commit | 7d95e4072169911b228c9e42367afb5f17fd3db0 (patch) | |
tree | d07731f1b71b1eb5f653778141ca586069d216b1 /Lib/test/test_dict.py | |
parent | 80d07f825108761af9fe2ac79c1ef50289c07c08 (diff) | |
download | cpython-7d95e4072169911b228c9e42367afb5f17fd3db0.zip cpython-7d95e4072169911b228c9e42367afb5f17fd3db0.tar.gz cpython-7d95e4072169911b228c9e42367afb5f17fd3db0.tar.bz2 |
Implement PEP 412: Key-sharing dictionaries (closes #13903)
Patch from Mark Shannon.
Diffstat (limited to 'Lib/test/test_dict.py')
-rw-r--r-- | Lib/test/test_dict.py | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Lib/test/test_dict.py b/Lib/test/test_dict.py index b43e20d..cd396c8 100644 --- a/Lib/test/test_dict.py +++ b/Lib/test/test_dict.py @@ -321,6 +321,27 @@ class DictTest(unittest.TestCase): self.assertEqual(hashed2.hash_count, 1) self.assertEqual(hashed1.eq_count + hashed2.eq_count, 1) + def test_setitem_atomic_at_resize(self): + class Hashed(object): + def __init__(self): + self.hash_count = 0 + self.eq_count = 0 + def __hash__(self): + self.hash_count += 1 + return 42 + def __eq__(self, other): + self.eq_count += 1 + return id(self) == id(other) + hashed1 = Hashed() + # 5 items + y = {hashed1: 5, 0: 0, 1: 1, 2: 2, 3: 3} + hashed2 = Hashed() + # 6th item forces a resize + y[hashed2] = [] + self.assertEqual(hashed1.hash_count, 1) + self.assertEqual(hashed2.hash_count, 1) + self.assertEqual(hashed1.eq_count + hashed2.eq_count, 1) + def test_popitem(self): # dict.popitem() for copymode in -1, +1: |