def test_nested_caches():
with Cache() as c1:
with Cache() as c2:
assert Cache.get() is c2
assert len(Cache.local.stack) == 2
assert Cache.get() is c1
assert len(Cache.local.stack) == 1
assert len(Cache.local.stack) == 0
def test_cache():
with Cache() as c1:
assert cache_me(3) == '3'
assert cache_me(3) == '3'
assert Cache.get() is c1
assert len(Cache.get()) == 1
def test_cache_unhashable():
with Cache():
assert cache_me([3]) == '[3]'
assert len(Cache.get()) == 0
