def METHOD_NAME(self):
    self.master_client.report_rdzv_params(1, 1, 360, 1)
    self.master_client.join_rendezvous(
        0, 8, RendezvousName.ELASTIC_TRAINING
    )
    group, world = self.master_client.get_comm_world(
        RendezvousName.ELASTIC_TRAINING, 0
    )
    self.assertEqual(group, 1)
    self.assertEqual(world[0], 8)