endpointSlices := make([]*discovery.EndpointSlice, nServices)

	// base parameters
	basePort := 80
	base := netutils.BigForIP(netutils.ParseIPSloppy("10.0.0.1"))

	// generate a base endpoint slice object
	baseEp := netutils.BigForIP(netutils.ParseIPSloppy("172.16.0.1"))
	epPort := 8080

	eps := &discovery.EndpointSlice{
		ObjectMeta: metav1.ObjectMeta{
			Name:      "ep",

func New(cidr *net.IPNet, allocatorFactory allocator.AllocatorWithOffsetFactory) (*Range, error) {
	max := netutils.RangeSize(cidr)
	base := netutils.BigForIP(cidr.IP)
	rangeSpec := cidr.String()
	var family api.IPFamily

	if netutils.IsIPv6CIDR(cidr) {
		family = api.IPv6Protocol
		// Limit the max size, since the allocator keeps a bitmap of that size.
		if max > 65536 {

				if u := r.Used(); u != expect {
					t.Errorf("unexpected used count: got %d, wanted %d", u, expect)
				}
			}
			expectUsed(t, r, baseUsed)

			err = r.DryRun().Allocate(netutils.AddIPOffset(netutils.BigForIP(cidr.IP), 1))
			if err != nil {
				t.Fatalf("unexpected failure: %v", err)
			}
			expectUsed(t, r, baseUsed)

			_, err = r.DryRun().AllocateNext()
			if err != nil {