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# pylint: disable=missing-docstring,too-few-public-methods,unused-argument,pointless-statement,expression-not-assigned
# metaclasses that support membership test protocol
class MetaIterable(type):
def __iter__(cls):
return iter((1, 2, 3))
class MetaOldIterable(type):
def __getitem__(cls, key):
if key < 10:
return key ** 2
raise IndexError("bad index")
class MetaContainer(type):
def __contains__(cls, key):
return False
class IterableClass(metaclass=MetaOldIterable):
pass
class OldIterableClass(metaclass=MetaOldIterable):
pass
class ContainerClass(metaclass=MetaContainer):
pass
def test():
1 in IterableClass
1 in OldIterableClass
1 in ContainerClass
1 in IterableClass() # [unsupported-membership-test]
1 in OldIterableClass() # [unsupported-membership-test]
1 in ContainerClass() # [unsupported-membership-test]
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