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package packet
import (
"bytes"
"testing"
"github.com/stretchr/testify/assert"
)
func TestDecodeStatsReport(t *testing.T) {
tests := []struct {
name string
input []byte
wantFail bool
expected *StatsReport
}{
{
name: "Full",
input: []byte{
// Per Peer Header
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,
// Stats Count
0, 0, 0, 2,
0, 1,
0, 4,
0, 0, 0, 2,
0, 2,
0, 4,
0, 0, 0, 3,
},
wantFail: false,
expected: &StatsReport{
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,
},
StatsCount: 2,
Stats: []*InformationTLV{
{
InformationType: 1,
InformationLength: 4,
Information: []byte{0, 0, 0, 2},
},
{
InformationType: 2,
InformationLength: 4,
Information: []byte{0, 0, 0, 3},
},
},
},
},
{
name: "Incomplete per peer header",
input: []byte{
// Per Peer Header
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,
},
wantFail: true,
},
{
name: "Incomplete stats count",
input: []byte{
// Per Peer Header
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,
},
wantFail: true,
},
{
name: "Incomplete TLV",
input: []byte{
// Per Peer Header
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,
// Stats Count
0, 0, 0, 2,
0, 1,
0, 4,
},
wantFail: true,
},
}
for _, test := range tests {
buf := bytes.NewBuffer(test.input)
sr, err := decodeStatsReport(buf, nil)
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, sr, "Test %q", test.name)
}
}