func newIPAddress() networking.IPAddress {
	return networking.IPAddress{
		ObjectMeta: metav1.ObjectMeta{
			Name:            "192.168.1.1",
			ResourceVersion: "1",
		},
		Spec: networking.IPAddressSpec{
			ParentRef: &networking.ParentReference{
				Group:     "",
				Resource:  "services",
				Name:      "foo",
				Namespace: "bar",
			},
		},
	}
}

func TestIPAddressStrategy(t *testing.T) {

			out := old.DeepCopy()
			return out
		},
		expectErr: false,
	},

		{
			name: "Failed update, update spec.ParentRef",
			new: func(svc *networking.IPAddress) *networking.IPAddress {
				out := svc.DeepCopy()
				out.Spec.ParentRef = &networking.ParentReference{
					Group:     "custom.resource.com",
					Resource:  "Gateway",
					Name:      "foo",
					Namespace: "bar",

                  * If one ParentRef sets `sectionName`, all ParentRefs referencing the
                    same object must also set `sectionName`.
                  * If one ParentRef sets `port`, all ParentRefs referencing the same
                    object must also set `port`.
                  * If one ParentRef sets `sectionName` and `port`, all ParentRefs

	allErrs = append(allErrs, apivalidation.ValidateObjectMetaUpdate(&update.ObjectMeta, &old.ObjectMeta, field.NewPath("metadata"))...)
	allErrs = append(allErrs, apivalidation.ValidateImmutableField(update.Spec.ParentRef, old.Spec.ParentRef, field.NewPath("spec").Child("parentRef"))...)
	return allErrs
}

var ValidateServiceCIDRName = apimachineryvalidation.NameIsDNSSubdomain

func ValidateServiceCIDR(cidrConfig *networking.ServiceCIDR) field.ErrorList {

  name: no-backend
  namespace: default
spec:
  parentRefs:
  - group: ""
    kind: Service
    name: httpbin
  rules:
  - filters:
    - type: RequestMirror
      requestMirror:
        backendRef:
          name: httpbin
          port: 80
---
apiVersion: gateway.networking.k8s.io/v1beta1
kind: HTTPRoute
metadata:
  name: invalid-parentRef-port
  namespace: default
spec:
  parentRefs:

// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *IPAddressSpec) DeepCopyInto(out *IPAddressSpec) {
	*out = *in
	if in.ParentRef != nil {
		in, out := &in.ParentRef, &out.ParentRef
		*out = new(ParentReference)
		**out = **in
	}
	return
}

// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new IPAddressSpec.

                  ParentRef that selects the same object must set the same set of
                  optional fields to different values. If one ParentRef sets a combination
                  of optional fields, all must set the same combination. \n Some examples:
                  \n * If one ParentRef sets `sectionName`, all ParentRefs referencing

	parentRefName := "<none>"
	if obj.Spec.ParentRef != nil {
		gr := schema.GroupResource{
			Group:    obj.Spec.ParentRef.Group,
			Resource: obj.Spec.ParentRef.Resource,
		}
		parentRefName = strings.ToLower(gr.String())
		if obj.Spec.ParentRef.Namespace != "" {
			parentRefName += "/" + obj.Spec.ParentRef.Namespace
		}
		parentRefName += "/" + obj.Spec.ParentRef.Name
	}

	// +optional
	Spec IPAddressSpec
}

// IPAddressSpec describe the attributes in an IP Address,
type IPAddressSpec struct {
	// ParentRef references the resource that an IPAddress is attached to.
	// An IPAddress must reference a parent object.
	// +required
	ParentRef *ParentReference
}
type ParentReference struct {
	// Group is the group of the object being referenced.
	Group string

			Labels: map[string]string{
				networkingv1alpha1.LabelIPAddressFamily: string(a.IPFamily()),
				networkingv1alpha1.LabelManagedBy:       ControllerName,
			},
		},
		Spec: networkingv1alpha1.IPAddressSpec{
			ParentRef: serviceToRef(svc),
		},
	}
	_, err := a.client.IPAddresses().Create(context.Background(), &ipAddress, metav1.CreateOptions{})
	if err != nil {
		// update metrics