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package dhcpv6
import (
"net"
"reflect"
"testing"
"github.com/insomniacslk/dhcp/iana"
"github.com/stretchr/testify/require"
)
func TestParseMessageOptionsWithClientID(t *testing.T) {
buf := []byte{
0, 1, // Client ID option
0, 10, // length
0, 3, // DUID_LL
0, 1, // hwtype ethernet
0, 1, 2, 3, 4, 5, // HW addr
}
want := &DUIDLL{HWType: iana.HWTypeEthernet, LinkLayerAddr: net.HardwareAddr{0, 1, 2, 3, 4, 5}}
var mo MessageOptions
if err := mo.FromBytes(buf); err != nil {
t.Errorf("FromBytes = %v", err)
} else if got := mo.ClientID(); !reflect.DeepEqual(got, want) {
t.Errorf("ClientID = %v, want %v", got, want)
}
}
func TestParseOptClientID(t *testing.T) {
data := []byte{
0, 3, // DUID_LL
0, 1, // hwtype ethernet
0, 1, 2, 3, 4, 5, // hw addr
}
var opt optClientID
err := opt.FromBytes(data)
require.NoError(t, err)
want := OptClientID(
&DUIDLL{
HWType: iana.HWTypeEthernet,
LinkLayerAddr: net.HardwareAddr([]byte{0, 1, 2, 3, 4, 5}),
},
)
require.Equal(t, want, &opt)
}
func TestOptClientIdToBytes(t *testing.T) {
opt := OptClientID(
&DUIDLL{
HWType: iana.HWTypeEthernet,
LinkLayerAddr: net.HardwareAddr([]byte{5, 4, 3, 2, 1, 0}),
},
)
expected := []byte{
0, 3, // DUID_LL
0, 1, // hwtype ethernet
5, 4, 3, 2, 1, 0, // hw addr
}
require.Equal(t, expected, opt.ToBytes())
}
func TestOptClientIdDecodeEncode(t *testing.T) {
data := []byte{
0, 3, // DUID_LL
0, 1, // hwtype ethernet
5, 4, 3, 2, 1, 0, // hw addr
}
var opt optClientID
err := opt.FromBytes(data)
require.NoError(t, err)
require.Equal(t, data, opt.ToBytes())
}
func TestOptionClientId(t *testing.T) {
opt := OptClientID(
&DUIDLL{
HWType: iana.HWTypeEthernet,
LinkLayerAddr: net.HardwareAddr([]byte{0xde, 0xad, 0, 0, 0xbe, 0xef}),
},
)
require.Equal(t, OptionClientID, opt.Code())
require.Contains(
t,
opt.String(),
"Client ID: DUID-LL{HWType=Ethernet HWAddr=de:ad:00:00:be:ef}",
"String() should contain the correct cid output",
)
}
func TestOptClientIdparseOptClientIDBogusDUID(t *testing.T) {
data := []byte{
0, 4, // DUID_UUID
1, 2, 3, 4, 5, 6, 7, 8, 9, // a UUID should be 18 bytes not 17
10, 11, 12, 13, 14, 15, 16, 17,
}
var opt optClientID
err := opt.FromBytes(data)
require.Error(t, err, "A truncated OptClientId DUID should return an error")
}
func TestOptClientIdparseOptClientIDInvalidTooShort(t *testing.T) {
data := []byte{
0, // truncated: DUIDs are at least 2 bytes
}
var opt optClientID
err := opt.FromBytes(data)
require.Error(t, err, "A truncated OptClientId should return an error")
}
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