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"""Check that instantiating a class with
`abc.ABCMeta` as metaclass fails if it defines
abstract methods.
"""
# pylint: disable=too-few-public-methods, missing-docstring, abstract-class-not-used, no-init
__revision__ = 0
import abc
class GoodClass(object, metaclass=abc.ABCMeta):
pass
class SecondGoodClass(object, metaclass=abc.ABCMeta):
def test(self):
""" do nothing. """
pass
class ThirdGoodClass(object, metaclass=abc.ABCMeta):
""" This should not raise the warning. """
def test(self):
raise NotImplementedError()
class FourthGoodClass(abc.ABC):
""" Neither this. """
def test(self):
pass
class BadClass(object, metaclass=abc.ABCMeta):
@abc.abstractmethod
def test(self):
""" do nothing. """
pass
class SecondBadClass(object, metaclass=abc.ABCMeta):
@property
@abc.abstractmethod
def test(self):
""" do nothing. """
class ThirdBadClass(abc.ABC):
@abc.abstractmethod
def test(self):
pass
def main():
""" do nothing """
GoodClass()
SecondGoodClass()
ThirdGoodClass()
FourthGoodClass()
BadClass()
SecondBadClass()
ThirdBadClass()
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