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package dhcpv6
import (
"net"
"testing"
"github.com/stretchr/testify/require"
)
func TestParseOptDHCP4oDHCP6Server(t *testing.T) {
data := []byte{
0x2a, 0x03, 0x28, 0x80, 0xff, 0xfe, 0x00, 0x0c, 0xfa, 0xce, 0xb0, 0x0c, 0x00, 0x00, 0x00, 0x35,
}
expected := []net.IP{
net.IP(data),
}
opt, err := ParseOptDHCP4oDHCP6Server(data)
require.NoError(t, err)
require.Equal(t, expected, opt.DHCP4oDHCP6Servers)
require.Equal(t, OptionDHCP4oDHCP6Server, opt.Code())
require.Contains(t, opt.String(), "[2a03:2880:fffe:c:face:b00c:0:35]", "String() should contain the correct DHCP4-over-DHCP6 server output")
}
func TestOptDHCP4oDHCP6ServerToBytes(t *testing.T) {
ip1 := net.ParseIP("2a03:2880:fffe:c:face:b00c:0:35")
ip2 := net.ParseIP("2001:4860:4860::8888")
servers := []net.IP{ip1, ip2}
expected := append([]byte{}, []byte(ip1)...)
expected = append(expected, []byte(ip2)...)
opt := OptDHCP4oDHCP6Server{DHCP4oDHCP6Servers: servers}
require.Equal(t, expected, opt.ToBytes())
}
func TestParseOptDHCP4oDHCP6ServerParseNoAddr(t *testing.T) {
data := []byte{}
var expected []net.IP
opt, err := ParseOptDHCP4oDHCP6Server(data)
require.NoError(t, err)
require.Equal(t, expected, opt.DHCP4oDHCP6Servers)
}
func TestOptDHCP4oDHCP6ServerToBytesNoAddr(t *testing.T) {
expected := []byte(nil)
opt := OptDHCP4oDHCP6Server{}
require.Equal(t, expected, opt.ToBytes())
}
func TestParseOptDHCP4oDHCP6ServerParseBogus(t *testing.T) {
data := []byte{
0x2a, 0x03, 0x28, 0x80, 0xff, 0xfe, 0x00, 0x0c, // invalid IPv6 address
}
_, err := ParseOptDHCP4oDHCP6Server(data)
require.Error(t, err, "An invalid IPv6 address should return an error")
}
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