proxy := setupXdsProxy(t)
	f := xds.NewFakeDiscoveryServer(t, xds.FakeOptions{})
	setDialOptions(proxy, f.BufListener)
	conn := setupDownstreamConnection(t, proxy)
	downstream := deltaStream(t, conn)
	sendDeltaDownstreamWithNode(t, downstream, model.NodeMetadata{
		Namespace:   "default",
		InstanceIPs: []string{"1.1.1.1"},
	})
}