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package packet
import (
"bytes"
"testing"
"github.com/stretchr/testify/assert"
)
func TestDecodeRouteMonitoringMsg(t *testing.T) {
tests := []struct {
name string
input []byte
ch *CommonHeader
wantFail bool
expected *RouteMonitoringMsg
}{
{
name: "Full",
input: []byte{
1,
2,
0, 0, 0, 3,
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
0, 0, 200, 124,
0, 0, 0, 123,
0, 0, 0, 100,
0, 0, 0, 200,
100, 110, 120,
},
ch: &CommonHeader{
MsgLength: CommonHeaderLen + PerPeerHeaderLen + 3,
},
wantFail: false,
expected: &RouteMonitoringMsg{
CommonHeader: &CommonHeader{
MsgLength: CommonHeaderLen + PerPeerHeaderLen + 3,
},
PerPeerHeader: &PerPeerHeader{
PeerType: 1,
PeerFlags: 2,
PeerDistinguisher: 3,
PeerAddress: [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16},
PeerAS: 51324,
PeerBGPID: 123,
Timestamp: 100,
TimestampMicroSeconds: 200,
},
BGPUpdate: []byte{
100, 110, 120,
},
},
},
{
name: "Incomplete per peer header",
input: []byte{
1,
2,
0, 0, 0, 3,
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
},
ch: &CommonHeader{
MsgLength: CommonHeaderLen + PerPeerHeaderLen + 3,
},
wantFail: true,
},
}
for _, test := range tests {
buf := bytes.NewBuffer(test.input)
r, err := decodeRouteMonitoringMsg(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, r, "Test %q", test.name)
}
}