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package packet
import (
"bytes"
"testing"
"github.com/stretchr/testify/assert"
"github.com/taktv6/tflow2/convert"
)
func TestSerializeKeepaliveMsg(t *testing.T) {
expected := []byte{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x00, 0x13, 0x04,
}
res := SerializeKeepaliveMsg()
assert.Equal(t, expected, res)
}
func TestSerializeNotificationMsg(t *testing.T) {
tests := []struct {
name string
input *BGPNotification
expected []byte
}{
{
name: "Valid #1",
input: &BGPNotification{
ErrorCode: 10,
ErrorSubcode: 5,
},
expected: []byte{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x00, 0x15, // Length
0x03, // Type
0x0a, // Error Code
0x05, // Error Subcode
},
},
{
name: "Valid #2",
input: &BGPNotification{
ErrorCode: 11,
ErrorSubcode: 6,
},
expected: []byte{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x00, 0x15, // Length
0x03, // Type
0x0b, // Error Code
0x06, // Error Subcode
},
},
}
for _, test := range tests {
res := SerializeNotificationMsg(test.input)
assert.Equal(t, test.expected, res)
}
}
func TestSerializeOpenMsg(t *testing.T) {
tests := []struct {
name string
input *BGPOpen
expected []byte
}{
{
name: "Valid #1",
input: &BGPOpen{
Version: 4,
AS: 15169,
HoldTime: 120,
BGPIdentifier: convert.Uint32([]byte{100, 111, 120, 130}),
OptParmLen: 0,
},
expected: []byte{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x00, 0x1d, // Length
0x01, // Type
0x04, // Version
0x3b, 0x41, // ASN
0x00, 0x78, // Holdtime
130, 120, 111, 100, // BGP Identifier
0x00, // Opt. Param Length
},
},
}
for _, test := range tests {
res := SerializeOpenMsg(test.input)
assert.Equal(t, test.expected, res)
}
}
func TestSerializeHeader(t *testing.T) {
tests := []struct {
name string
length uint16
typ uint8
expected []byte
}{
{
name: "Valid #1",
length: 10,
typ: 5,
expected: []byte{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x00, 0x0a, 0x05,
},
},
{
name: "Valid #12",
length: 256,
typ: 255,
expected: []byte{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x01, 0x00, 0xff,
},
},
}
for _, test := range tests {
buf := bytes.NewBuffer([]byte{})
serializeHeader(buf, test.length, test.typ)
assert.Equal(t, test.expected, buf.Bytes())
}
}