}
	return nil
}

// collectServiceNodePorts returns nodePorts specified in the Service.
// Please note that:
//  1. same nodePort with *same* protocol will be duplicated as it is
//  2. same nodePort with *different* protocol will be deduplicated
func collectServiceNodePorts(service *corev1.Service) []int {
	var servicePorts []int
	// map from nodePort to set of protocols

	nodePorts := collectServiceNodePorts(service)

	for _, nodePort := range nodePorts {
		nodePortOp.ReleaseDeferred(nodePort)
	}
}

func (al *Allocators) updateNodePorts(after After, before Before, nodePortOp *portallocator.PortAllocationOperation) error {
	oldService, newService := before.Service, after.Service

	oldNodePortsNumbers := collectServiceNodePorts(oldService)

				},
				HealthCheckNodePort: 112,
			},
			expected: []int{111, 112, 112},
		},
	}
	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			ports := collectServiceNodePorts(&corev1.Service{
				ObjectMeta: metav1.ObjectMeta{Namespace: "one", Name: "one"},
				Spec:       tc.serviceSpec,
			})
			sort.Ints(ports)
			if !reflect.DeepEqual(tc.expected, ports) {