def test_is_valid_ng_vrid_min(self):
        vrid = 1 - vrrp.VRRP_VRID_MIN
        ok_(not self._test_is_valid(vrid=vrid))
dataset/ETHPy150Open osrg/ryu/ryu/tests/unit/packet/test_vrrp.py/Test_vrrpv2.test_is_valid_ng_vrid_min/swapped operands of `-`