def METHOD_NAME(self):
    self.setup_cluster(nodes_number=3)
    self.cluster.set_test_params(seeds_selector='first', seeds_num=2, db_type='scylla')
    self.cluster.set_seeds()
    self.assertTrue(self.cluster.seed_nodes == [self.cluster.nodes[0], self.cluster.nodes[1]])
    self.assertTrue(self.cluster.non_seed_nodes == [self.cluster.nodes[2]])
    self.assertTrue(self.cluster.seed_nodes_ips == [self.cluster.nodes[0].ip_address,
                                                    self.cluster.nodes[1].ip_address])