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Issue #25447: Copying the lru_cache() wrapper object now always works,

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independedly from the type of the wrapped object (by returning the original
object unchanged).
This commit is contained in:
Serhiy Storchaka 2015-12-28 23:58:07 +02:00
parent 762d5ea875
commit e4d65e3aab
3 changed files with 32 additions and 2 deletions
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14
Lib/test/test_functools.py
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@ -1262,14 +1262,24 @@ class TestLRU:
def test_copy(self):
cls = self.__class__
for f in cls.cached_func[0], cls.cached_meth, cls.cached_staticmeth:
def orig(x, y):
return 3 * x + y
part = self.module.partial(orig, 2)
funcs = (cls.cached_func[0], cls.cached_meth, cls.cached_staticmeth,
self.module.lru_cache(2)(part))
for f in funcs:
with self.subTest(func=f):
f_copy = copy.copy(f)
self.assertIs(f_copy, f)
def test_deepcopy(self):
cls = self.__class__
for f in cls.cached_func[0], cls.cached_meth, cls.cached_staticmeth:
def orig(x, y):
return 3 * x + y
part = self.module.partial(orig, 2)
funcs = (cls.cached_func[0], cls.cached_meth, cls.cached_staticmeth,
self.module.lru_cache(2)(part))
for f in funcs:
with self.subTest(func=f):
f_copy = copy.deepcopy(f)
self.assertIs(f_copy, f)