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
	portRange := "30000-32767"
	pr, err := net.ParsePortRange(portRange)
	if err != nil {
		t.Fatal(err)
	}