def with_effect_factory(self, effect_factory):
        self.effect_factory = effect_factory
        return self
This test will ensure that can_be_positioned works properly. This 
dataset/ETHPy150Open tuturto/pyherc/src/pyherc/test/builders/action.py/ActionFactoryBuilder.with_effect_factory--crossover with--dataset/ETHPy150Open callowayproject/django-kamasutra/positions/tests.py/PositionsTestCase.testCanBePositioned