'Different configurations for radvd and dnsmasq are not allowed'

@decorators.idempotent_id('81f18ef6-95b5-4584-9966-10d480b7496a')
def test_dhcpv6_invalid_options(self):

    for (ra_mode, add_mode) in (('dhcpv6-stateless', 'dhcpv6-stateful'), ('dhcpv6-stateless', 'slaac'), ('slaac', 'dhcpv6-stateful'), ('dhcpv6-stateful', 'dhcpv6-stateless'), ('dhcpv6-stateful', 'slaac'), ('slaac', 'dhcpv6-stateless')):
        kwargs = {'ipv6_ra_mode': ra_mode, 'ipv6_address_mode': add_mode}
        self.assertRaises(lib_exc.BadRequest, self.create_subnet, self.network, **kwargs)
