AdGuardHome/internal/dhcpd/routeradv_test.go

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package dhcpd
import (
"net"
"testing"
"github.com/stretchr/testify/assert"
)
func TestCreateICMPv6RAPacket(t *testing.T) {
wantData := []byte{
0x86, 0x00, 0x00, 0x00, 0x40, 0x40, 0x07, 0x08,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x0e, 0x10,
0x00, 0x00, 0x0e, 0x10, 0x00, 0x00, 0x00, 0x00,
0x12, 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x05, 0x01, 0x00, 0x00, 0x00, 0x00, 0x05, 0xdc,
0x01, 0x01, 0x0a, 0x00, 0x27, 0x00, 0x00, 0x00,
0x00, 0x00, 0x19, 0x03, 0x00, 0x00, 0x00, 0x00,
0x0e, 0x10, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x08, 0x00, 0x27, 0xff, 0xfe, 0x00,
0x00, 0x00,
}
gotData, err := createICMPv6RAPacket(icmpv6RA{
managedAddressConfiguration: false,
otherConfiguration: true,
mtu: 1500,
prefix: net.ParseIP("1234::"),
prefixLen: 64,
recursiveDNSServer: net.ParseIP("fe80::800:27ff:fe00:0"),
sourceLinkLayerAddress: []byte{0x0a, 0x00, 0x27, 0x00, 0x00, 0x00},
})
assert.NoError(t, err)
assert.Equal(t, wantData, gotData)
}