resp := lockRPCRefresh.NewResponse()
	refreshed, err := l.ll.Refresh(context.Background(), *args)
	if err != nil {
		return l.makeResp(resp, err)
	}
	if !refreshed {
		return l.makeResp(resp, errLockNotFound)
	}
	return l.makeResp(resp, err)
}

// LockHandler - Acquires a lock.
func (l *lockRESTServer) LockHandler(args *dsync.LockArgs) (*dsync.LockResp, *grid.RemoteErr) {

	}
}

func TestXdsCache(t *testing.T) {
	makeEp := func(subset string, dr *model.ConsolidatedDestRule) *endpoints.EndpointBuilder {
		svc := &model.Service{Hostname: "foo.com"}
		b := endpoints.NewCDSEndpointBuilder(
			proxy, nil,
			fmt.Sprintf("outbound|%s|foo.com", subset),
			model.TrafficDirectionOutbound, subset, "foo.com", 80,
			svc, dr)
		return b
	}
	ep1 := makeEp("1", nil)
	ep2 := makeEp("2", nil)