def test_setdefault_parent(self):
from benben.sqla import NestedMutationDict
mdict = NestedMutationDict({})
assert mdict.setdefault('bar', []).__parent__ is mdict
def test_setdefault_list(self):
from benben.sqla import NestedMutationDict
from benben.sqla import NestedMutationList
mdict = NestedMutationDict({})
assert isinstance(mdict.setdefault('bar', []), NestedMutationList)