dowski

class method(object):
    def __init__(self, return_value):
        self.return_value = return_value

    @classmethod
    def returns(cls, value):
        return cls(value)

    def __call__(self, *args, **params):
        return self.return_value

if __name__ == '__main__':
        from dingus import Dingus

        approver = Dingus(approve=method.returns(True))
        denier = Dingus(approve=method.returns(False))
        assert approver.approve()
        assert not denier.approve(1234, 'foo')