netip.MustParseAddr("2222:3333::1"),
				})
			},
			isDS:     true,
			expected: true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			LocalIPAddrs = tt.lipas
			_, isV6, err := getLocalIP(tt.isDS)
			if err != nil {
				t.Errorf("getLocalIP err: %s", err)
			}
			if isV6 != tt.expected {

}

// mock net.InterfaceAddrs to make its unit test become available
var (
	LocalIPAddrs = net.InterfaceAddrs
)

// getLocalIP returns one of the local IP address and it should support IPv6 or not
func getLocalIP(dualStack bool) (netip.Addr, bool, error) {
	var isIPv6 bool
	var ipAddrs []netip.Addr
	addrs, err := LocalIPAddrs()
	if err != nil {
		return netip.Addr{}, isIPv6, err
	}