defer cancel()
				conn, err := grpc.DialContext(ctx, "xds:///"+host+":"+xdsPorts, grpc.WithTransportCredentials(insecure.NewCredentials()), grpc.WithBlock(),
					grpc.WithResolvers(xdsresolver))
				if err != nil {
					t.Fatal("XDS gRPC", err)
				}
				defer conn.Close()
				s, err := discovery.NewAggregatedDiscoveryServiceClient(conn).StreamAggregatedResources(ctx)
				if err != nil {