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package packet
import (
"bytes"
"testing"
"github.com/stretchr/testify/assert"
)
func TestPeerUpMsgType(t *testing.T) {
pd := &PeerUpNotification{
CommonHeader: &CommonHeader{
MsgType: 100,
},
}
if pd.MsgType() != 100 {
t.Errorf("Unexpected result")
}
}
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func TestDecodePeerUp(t *testing.T) {
tests := []struct {
name string
input []byte
ch *CommonHeader
wantFail bool
expected *PeerUpNotification
}{
{
name: "Full",
input: []byte{
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
0, 100,
0, 200,
// OPEN Sent
4, // Version
1, 0, // ASN
2, 0, // Hold Time
100, 110, 120, 130, // BGP Identifier
5, // Opt Parm Len
1, 2, 3, 4, 5,
// OPEN Recv
4, // Version
1, 0, // ASN
2, 0, // Hold Time
100, 110, 120, 130, // BGP Identifier
0, // Opt Parm Len
120, 140, 160, // Information
},
ch: &CommonHeader{
MsgLength: 47,
},
wantFail: false,
expected: &PeerUpNotification{
LocalAddress: [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16},
LocalPort: 100,
RemotePort: 200,
SentOpenMsg: []byte{
4, // Version
1, 0, // ASN
2, 0, // Hold Time
100, 110, 120, 130, // BGP Identifier
5, // Opt Parm Len
1, 2, 3, 4, 5,
},
ReceivedOpenMsg: []byte{
// OPEN Recv
4, // Version
1, 0, // ASN
2, 0, // Hold Time
100, 110, 120, 130, // BGP Identifier
0, // Opt Parm Len
},
Information: []byte{
120, 140, 160, // Information
},
},
},
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{
name: "Full #2",
input: []byte{
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
0, 100,
0, 200,
// OPEN Sent
4, // Version
1, 0, // ASN
2, 0, // Hold Time
100, 110, 120, 130, // BGP Identifier
5, // Opt Parm Len
1, 2, 3, 4, 5,
// OPEN Recv
4, // Version
1, 0, // ASN
2, 0, // Hold Time
100, 110, 120, 130, // BGP Identifier
0, // Opt Parm Len
},
ch: &CommonHeader{
MsgLength: 44,
},
wantFail: false,
expected: &PeerUpNotification{
LocalAddress: [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16},
LocalPort: 100,
RemotePort: 200,
SentOpenMsg: []byte{
4, // Version
1, 0, // ASN
2, 0, // Hold Time
100, 110, 120, 130, // BGP Identifier
5, // Opt Parm Len
1, 2, 3, 4, 5,
},
ReceivedOpenMsg: []byte{
// OPEN Recv
4, // Version
1, 0, // ASN
2, 0, // Hold Time
100, 110, 120, 130, // BGP Identifier
0, // Opt Parm Len
},
},
},
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{
name: "Incomplete #1",
input: []byte{
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
0, 100,
},
ch: &CommonHeader{
MsgLength: 47,
},
wantFail: true,
},
{
name: "Incomplete #2",
input: []byte{
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
0, 100,
0, 200,
// OPEN Sent
4, // Version
1, 0, // ASN
2, 0, // Hold Time
},
ch: &CommonHeader{
MsgLength: 47,
},
wantFail: true,
},
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{
name: "Incomplete #3",
input: []byte{
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
0, 100,
0, 200,
// OPEN Sent
4, // Version
1, 0, // ASN
2, 0, // Hold Time
},
ch: &CommonHeader{
MsgLength: 47,
},
wantFail: true,
},
{
name: "Incomplete #4",
input: []byte{
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
0, 100,
0, 200,
// OPEN Sent
4, // Version
1, 0, // ASN
2, 0, // Hold Time
100, 110, 120, 130, // BGP Identifier
5, // Opt Parm Len
1, 2, 3, 4, 5,
// OPEN Recv
4, // Version
1, 0, // ASN
2, 0, // Hold Time
100, 110, 120, 130, // BGP Identifier
3, // Opt Parm Len
},
ch: &CommonHeader{
MsgLength: 47,
},
wantFail: true,
},
}
for _, test := range tests {
buf := bytes.NewBuffer(test.input)
pu, err := decodePeerUpNotification(buf, test.ch)
if err != nil {
if test.wantFail {
continue
}
t.Errorf("Unexpected failure for test %q: %v", test.name, err)
continue
}
if test.wantFail {
t.Errorf("Unexpected success for test %q", test.name)
continue
}
assert.Equalf(t, test.expected, pu, "Test %q", test.name)
}
}