n.q.Schedule(wrappedOnDone, deadline)
	}, onDone)
}

func (n *Node) Locality() locality.Instance {
	return n.locality
}

func (n *Node) ShutDown() {
	n.q.ShutDown()
}

type Nodes []*Node

func (nodes Nodes) Select(match locality.Match) Nodes {
	var out Nodes
	for _, n := range nodes {
		if match(n.locality) {
			out = append(out, n)
		}
	}
	return out
}

	return out
}

func (c *Controller) NewEndpointBuilderFromMetadata(proxy *model.Proxy) *EndpointBuilder {
	locality := util.LocalityToString(proxy.Locality)
	out := &EndpointBuilder{
		controller:     c,
		metaNetwork:    proxy.Metadata.Network,
		serviceAccount: proxy.Metadata.ServiceAccount,
		locality: model.Locality{
			Label:     locality,

  ports:
    - number: 80
      name: http
      protocol: HTTP
  resolution: STATIC
  endpoints:
    - address: 3.3.3.3
      locality: a
    - address: 2.2.2.2
      locality: a
      weight: 8
    - address: 1.1.1.1
      locality: b

				if includeConfigType {
					addr = fmt.Sprintf("endpoint/%s", addr)
				}
				fmt.Fprintf(w, "%v\t%v\t%v\t%v\n",
					addr,
					ep.GetHealthStatus().String(),
					util.LocalityToString(llb.Locality),
					eds.ClusterName,
				)
			}
		}
	}

	return w.Flush()
}

func (c *ConfigWriter) retrieveSortedEndpointsSlice(filter EndpointFilter) ([]*endpoint.ClusterLoadAssignment, error) {

	tests := []struct {
		name     string
		locality string
		want     *core.Locality
		reverse  string
	}{
		{
			name:     "nil locality",
			locality: "",
			want:     &core.Locality{},
		},
		{
			name:     "locality with only region",
			locality: "region",
			want: &core.Locality{
				Region: "region",
			},
		},
		{
			name:     "locality with region and zone",

		t.Run(v.name, func(tt *testing.T) {
			server, url := setupHTTPServer(v.handlers)
			defer server.Close()
			awsMetadataIPv4URL = url.String()
			locality := NewAWS(false).Locality()
			if !reflect.DeepEqual(locality, v.want) {
				t.Errorf("unexpected locality. want :%v, got :%v", v.want, locality)
			}
		})
	}
}

func TestIsAWS(t *testing.T) {
	cases := []struct {
		name     string
		handlers map[string]handlerFunc

				},
				Metadata: &model.NodeMetadata{
					Labels: labels.Instance{
						"k1":                       "v1",
						label.TopologyNetwork.Name: "mynetwork",
					},
				},
				Locality: &core.Locality{
					Region: "myregion",
				},
			},
			expected: labels.Instance{
				"k1":                       "v1",
				NodeRegionLabelGA:          "myregion",
				label.TopologyNetwork.Name: "mynetwork",

	}

	wg.Wait()

	c := s.mesh.Clients()[0]
	clientLocality := c.Locality()
	clientLatency := clientLatencies[0]

	nodesSameZone := s.mesh.Nodes().Select(locality.MatchZone(clientLocality))
	nodesSameRegion := s.mesh.Nodes().Select(locality.MatchOtherZoneInSameRegion(clientLocality))
	nodesOtherRegion := s.mesh.Nodes().Select(locality.Not(locality.MatchRegion(clientLocality)))

	// Store in the output.

{{- if ne $.Locality "" }}
      istio-locality: {{ $.Locality }}
{{- end }}
  template:
    metadata:
      labels:
        app: {{ $.Service }}
        version: {{ $subset.Version }}
        test.istio.io/class: {{ $.WorkloadClass }}
{{- if $.Compatibility }}
        istio.io/rev: {{ $revision }}
{{- end }}
{{- if ne $.Locality "" }}
        istio-locality: {{ $.Locality }}
{{- end }}

	for _, localityLbEndpoint := range c.LoadAssignment.Endpoints {
		locality := localityLbEndpoint.Locality
		if locality.Region == "region1" && locality.Zone == "zone1" && locality.SubZone == "subzone1" {
			g.Expect(localityLbEndpoint.Priority).To(Equal(uint32(0)))
		} else if locality.Region == "region1" && locality.Zone == "zone1" && locality.SubZone == "subzone2" {
			g.Expect(localityLbEndpoint.Priority).To(Equal(uint32(1)))