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package dhcpv6
import (
"bytes"
"net"
"testing"
)
func TestOptIAPrefix(t *testing.T) {
buf := []byte{
0xaa, 0xbb, 0xcc, 0xdd, // preferredLifetime
0xee, 0xff, 0x00, 0x11, // validLifetime
36, // prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // ipv6Prefix
}
opt, err := ParseOptIAPrefix(buf)
if err != nil {
t.Fatal(err)
}
if pl := opt.PreferredLifetime(); pl != 0xaabbccdd {
t.Fatalf("Invalid Preferred Lifetime. Expected 0xaabbccdd, got %v", pl)
}
if vl := opt.ValidLifetime(); vl != 0xeeff0011 {
t.Fatalf("Invalid Valid Lifetime. Expected 0xeeff0011, got %v", vl)
}
if pr := opt.PrefixLength(); pr != 36 {
t.Fatalf("Invalid Prefix Length. Expected 36, got %v", pr)
}
if ip := opt.IPv6Prefix(); !bytes.Equal(ip, net.IPv6loopback) {
t.Fatalf("Invalid Prefix Length. Expected %v, got %v", net.IPv6loopback, ip)
}
}
func TestOptIAPrefixToBytes(t *testing.T) {
buf := []byte{
0xaa, 0xbb, 0xcc, 0xdd, // preferredLifetime
0xee, 0xff, 0x00, 0x11, // validLifetime
36, // prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // ipv6Prefix
}
expected := []byte{00, 26, 00, byte(len(buf))}
expected = append(expected, buf...)
opt := OptIAPrefix{
preferredLifetime: 0xaabbccdd,
validLifetime: 0xeeff0011,
prefixLength: 36,
}
toBytes := opt.ToBytes()
if !bytes.Equal(toBytes, expected) {
t.Fatalf("Invalid ToBytes result. Expected %v, got %v", expected, toBytes)
}
}
func TestOptIAPrefixParseInvalidTooShort(t *testing.T) {
buf := []byte{
0xaa, 0xbb, 0xcc, 0xdd, // preferredLifetime
0xee, 0xff, 0x00, 0x11, // validLifetime
36, // prefixLength
0, 0, 0, 0, 0, 0, 0, // truncated ipv6Prefix
}
if opt, err := ParseOptIAPrefix(buf); err == nil {
t.Fatalf("ParseOptIAPrefix: Expected error on truncated option, got %v", opt)
}
}
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