r.metrics = &metricsRecorder{}
}

// calculateRangeOffset estimates the offset used on the range for statically allocation based on
// the following formula `min(max($min, rangeSize/$step), $max)`, described as ~never less than
// $min or more than $max, with a graduated step function between them~. The function returns 0
// if any of the parameters is invalid.
func calculateRangeOffset(pr net.PortRange) int {

					Base: 30000,
					Size: 8192,
				},
			},
			want: 128,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := calculateRangeOffset(tt.args.pr); got != tt.want {
				t.Errorf("calculateRangeOffset() = %v, want %v", got, tt.want)
			}
		})
	}
}

func TestNodePortMetrics(t *testing.T) {
	clearMetrics()
	// create node port allocator

}

// calculateRangeOffset estimates the offset used on the range for statically allocation based on
// the following formula `min(max($min, cidrSize/$step), $max)`, described as ~never less than
// $min or more than $max, with a graduated step function between them~. The function returns 0
// if any of the parameters is invalid.
func calculateRangeOffset(cidr *net.IPNet) int {

	r, err := NewInMemory(cidr)
	if err != nil {
		t.Fatal(err)
	}
	// allocate all addresses on the dynamic block
	// subnet /25 = 128 ; dynamic block size is min(max(16,128/16),256) = 16
	dynamicOffset := calculateRangeOffset(cidr)
	dynamicBlockSize := r.max - dynamicOffset
	for i := 0; i < dynamicBlockSize; i++ {
		if _, err := r.AllocateNext(); err != nil {
			t.Errorf("Unexpected error trying to allocate: %v", err)
		}
	}

	if family == api.IPv4Protocol {
		ipLast = ipLast.Prev()
	}
	// KEP-3070: Reserve Service IP Ranges For Dynamic and Static IP Allocation
	// calculate the subrange offset
	rangeOffset := calculateRangeOffset(cidr)
	offsetAddress, err := addOffsetAddress(ipFirst, uint64(rangeOffset))
	if err != nil {
		return nil, err
	}
	a := &Allocator{
		cidr:            cidr,
		prefix:          prefix,

	if err != nil {
		t.Fatal(err)
	}
	defer r.Destroy()
	// allocate all addresses on the dynamic block
	// subnet /25 = 128 ; dynamic block size is min(max(16,128/16),256) = 16
	dynamicOffset := calculateRangeOffset(cidr)
	dynamicBlockSize := int(r.size) - dynamicOffset
	for i := 0; i < dynamicBlockSize; i++ {
		_, err := r.AllocateNext()
		if err != nil {
			t.Errorf("Unexpected error trying to allocate: %v", err)
		}