number: 80
    protocol: HTTP
  resolution: {{.Resolution}}
  endpoints:
  - address: {{.Local}}
    locality: region/zone/subzone
  - address: {{.Remote}}
    locality: notregion/notzone/notsubzone
  {{ if ne .NearLocal "" }}
  - address: {{.NearLocal}}
    locality: "nearregion/zone/subzone"
  {{ end }}
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: external-service-locality

	out := make(labels.Instance, len(in)+6)
	for k, v := range in {
		out[k] = v
	}

	region, zone, subzone := SplitLocalityLabel(locality)
	if len(region) > 0 {
		out[LabelTopologyRegion] = region
	}
	if len(zone) > 0 {
		out[LabelTopologyZone] = zone
	}
	if len(subzone) > 0 {
		out[label.TopologySubzone.Name] = subzone
	}
	if len(clusterID) > 0 {
		out[label.TopologyCluster.Name] = clusterID.String()
	}

			name:     "with label",
			label:    "region/zone/subzone-1",
			expected: "region/zone/subzone-1",
		},
		{
			name:     "label with k8s label separator",
			label:    "region" + k8sSeparator + "zone" + k8sSeparator + "subzone-2",
			expected: "region/zone/subzone-2",
		},
		{
			name:     "label with both k8s label separators and slashes",
			label:    "region/zone/subzone.2",
			expected: "region/zone/subzone.2",
		},

// limitations under the License.

package configdump

type Locality struct {
	Region  string `json:"region,omitempty"`
	Zone    string `json:"zone,omitempty"`
	Subzone string `json:"subzone,omitempty"`
}

type ZtunnelWorkload struct {
	WorkloadIPs           []string          `json:"workloadIps"`
	Waypoint              *GatewayAddress   `json:"waypoint,omitempty"`

				ObjectMeta: metav1.ObjectMeta{Name: "fake", Labels: map[string]string{
					NodeRegionLabelGA:          loc.Region,
					NodeZoneLabel:              loc.Zone,
					label.TopologySubzone.Name: loc.SubZone,
				}},
				Spec:   v1.NodeSpec{},
				Status: v1.NodeStatus{},
			})
			nodes := kclient.New[*v1.Node](fc)
			fc.RunAndWait(test.NewStop(t))
			cc := &Controller{
				nodes:       nodes,

	defer os.Chdir(dir)
	// prepare a pod label file
	tempDir := t.TempDir()
	os.Chdir(tempDir)
	os.MkdirAll("./etc/istio/pod/", os.ModePerm)
	os.WriteFile(constants.PodInfoLabelsPath, []byte(`istio-locality="region.zone.subzone"`), 0o600)

	node, err := GetNodeMetaData(MetadataOptions{
		ID:                          "test",
		Envs:                        os.Environ(),
		ExitOnZeroActiveConnections: true,
	})

	g := NewWithT(t)

}

func Region(value string) Instance {
	return newOptionOrSkipIfZero("region", value)
}

func Zone(value string) Instance {
	return newOptionOrSkipIfZero("zone", value)
}

func SubZone(value string) Instance {
	return newOptionOrSkipIfZero("sub_zone", value)
}

func NodeMetadata(meta *model.BootstrapNodeMetadata, rawMeta map[string]any) Instance {

func (u uint128) or(m uint128) uint128 {
	return uint128{u.hi | m.hi, u.lo | m.lo}
}

// not returns the bitwise NOT of u.
func (u uint128) not() uint128 {
	return uint128{^u.hi, ^u.lo}
}

// subOne returns u - 1.
func (u uint128) subOne() uint128 {
	lo, borrow := bits.Sub64(u.lo, 1, 0)
	return uint128{u.hi - borrow, lo}
}

// addOne returns u + 1.
func (u uint128) addOne() uint128 {
	lo, carry := bits.Add64(u.lo, 1, 0)

		{uint128{1, 1}, sub1, uint128{1, 0}},
	}
	for _, tt := range tests {
		var got uint128
		switch tt.op {
		case add1:
			got = tt.in.addOne()
		case sub1:
			got = tt.in.subOne()
		default:
			panic("bogus op")
		}
		if got != tt.want {
			t.Errorf("%v add %d = %v; want %v", tt.in, tt.op, got, tt.want)
		}
	}
}

func TestBitsSetFrom(t *testing.T) {
	tests := []struct {

		"appendDecimal",
		"appendHex",
		"uint128.addOne",
		"uint128.and",
		"uint128.bitsClearedFrom",
		"uint128.bitsSetFrom",
		"uint128.isZero",
		"uint128.not",
		"uint128.or",
		"uint128.subOne",
		"uint128.xor",
	}
	switch runtime.GOARCH {
	case "amd64", "arm64":
		// These don't inline on 32-bit.
		wantInlinable = append(wantInlinable,
			"Addr.AsSlice",
			"Addr.Next",
			"Addr.Prev",
		)