`).
		YAML("", fmt.Sprintf(`
apiVersion: gateway.networking.k8s.io/v1beta1
kind: Gateway
metadata:
  name: gateway
  namespace: istio-system
spec:
  addresses:
  - value: istio-ingressgateway
    type: Hostname
  gatewayClassName: custom-istio
  listeners:
  - name: http
    hostname: "*.domain.example"
    port: 80
    protocol: HTTP
    allowedRoutes:
      namespaces:

		inputFiles: []string{"testdata/gateway-custom-ingressgateway.yaml"},
		analyzer:   &gateway.IngressGatewayPortAnalyzer{},
		expected:   []message{
			// no messages, this test case verifies no false positives
		},
	},
	{
		name:       "gatewayCustomIngressGatewayBadPort",
		inputFiles: []string{"testdata/gateway-custom-ingressgateway-badport.yaml"},
		analyzer:   &gateway.IngressGatewayPortAnalyzer{},

	IstioLabel = "istio"

	// IstioIngressLabelValue is value for IstioLabel that identifies an ingress workload.
	// TODO we should derive this from IngressClass
	IstioIngressLabelValue = "ingressgateway"

	// IstioSystemNamespace is the namespace where Istio's components are deployed
	IstioSystemNamespace = "istio-system"

	// DefaultAuthenticationPolicyName is the name of the cluster-scoped authentication policy. Only

		}
	}
	return nil
}

const gatewayConfig = `
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: echo-gateway
spec:
  selector:
    istio: ingressgateway
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "*"
  - port:
      number: 31400
      name: tcp
      protocol: TCP
    hosts:

				rev := ""
				if t.Settings().Revisions.Default() != "" {
					rev = t.Settings().Revisions.Default()
				}
				os.WriteFile(d, []byte(fmt.Sprintf(`
revision: %v
gateways:
  istio-ingressgateway:
    name: custom-gateway-helm
    injectionTemplate: gateway
    type: ClusterIP # LoadBalancer is slow and not necessary for this tests
    autoscaleMax: 1
    resources:
      requests:
        cpu: 10m

	if ctx.Settings().EnableDualStack {
		args.AppendSet("values.pilot.env.ISTIO_DUAL_STACK", "true")
		args.AppendSet("meshConfig.defaultConfig.proxyMetadata.ISTIO_DUAL_STACK", "true")
		args.AppendSet("values.gateways.istio-ingressgateway.ipFamilyPolicy", "RequireDualStack")
		args.AppendSet("values.gateways.istio-egressgateway.ipFamilyPolicy", "RequireDualStack")
	}

	// Include all user-specified values.
	for k, v := range cfg.Values {