def test_bool(self):
        prio_set_list = event._PrioritizedSetList()

        assert bool(prio_set_list) is False

        prio_set_list.add(0, None)
        assert bool(prio_set_list) is True
def resource_setup(cls):
        super(VolumesActionsTest, cls).resource_setup()

        # Create a test shared volume for attach/detach tests
        cls.volume = cls.create_volume()