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boltons
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fixes #21 - self.root was not being correctly updated, so the list never rotated out entries! 

this has a very simple test to demonstrate the issue is closed.  more tests are needed.
This commit is contained in:
Mark Williams 2015-04-11 01:49:57 -07:00
parent bad95b645c
commit 5650098a61
1 changed files with 8 additions and 1 deletions
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9
boltons/cacheutils.py
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@ -133,7 +133,7 @@ class LRU(dict):
oldroot[KEY] = key oldroot[KEY] = key
oldroot[VALUE] = value oldroot[VALUE] = value
# prevent ref counts going to zero during update # prevent ref counts going to zero during update
root = oldroot[NEXT] self.root = root = oldroot[NEXT]
oldkey, oldresult = root[KEY], root[VALUE] oldkey, oldresult = root[KEY], root[VALUE]
root[KEY] = root[VALUE] = None root[KEY] = root[VALUE] = None
# Now update the cache dictionary. # Now update the cache dictionary.
@ -433,8 +433,15 @@ def cached(cache, typed=False):
return cached_func_decorator return cached_func_decorator
def test_21():
cache = LRU(max_size=3)
for i in xrange(4):
cache[i] = i
if __name__ == '__main__': if __name__ == '__main__':
test_21()
def _test_lri(): def _test_lri():
import string import string
bc = LRI(10, on_miss=lambda k: k.upper()) bc = LRI(10, on_miss=lambda k: k.upper())