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package rtcp
import (
"errors"
"reflect"
"testing"
)
var _ Packet = (*ReceiverReport)(nil) // assert is a Packet
func TestReceiverReportUnmarshal(t *testing.T) {
for _, test := range []struct {
Name string
Data []byte
Want ReceiverReport
WantError error
}{
{
Name: "valid",
Data: []byte{
// v=2, p=0, count=1, RR, len=7
0x81, 0xc9, 0x0, 0x7,
// ssrc=0x902f9e2e
0x90, 0x2f, 0x9e, 0x2e,
// ssrc=0xbc5e9a40
0xbc, 0x5e, 0x9a, 0x40,
// fracLost=0, totalLost=0
0x0, 0x0, 0x0, 0x0,
// lastSeq=0x46e1
0x0, 0x0, 0x46, 0xe1,
// jitter=273
0x0, 0x0, 0x1, 0x11,
// lsr=0x9f36432
0x9, 0xf3, 0x64, 0x32,
// delay=150137
0x0, 0x2, 0x4a, 0x79,
},
Want: ReceiverReport{
SSRC: 0x902f9e2e,
Reports: []ReceptionReport{{
SSRC: 0xbc5e9a40,
FractionLost: 0,
TotalLost: 0,
LastSequenceNumber: 0x46e1,
Jitter: 273,
LastSenderReport: 0x9f36432,
Delay: 150137,
}},
ProfileExtensions: []byte{},
},
},
{
Name: "valid with extension data",
Data: []byte{
// v=2, p=0, count=1, RR, len=9
0x81, 0xc9, 0x0, 0x9,
// ssrc=0x902f9e2e
0x90, 0x2f, 0x9e, 0x2e,
// ssrc=0xbc5e9a40
0xbc, 0x5e, 0x9a, 0x40,
// fracLost=0, totalLost=0
0x0, 0x0, 0x0, 0x0,
// lastSeq=0x46e1
0x0, 0x0, 0x46, 0xe1,
// jitter=273
0x0, 0x0, 0x1, 0x11,
// lsr=0x9f36432
0x9, 0xf3, 0x64, 0x32,
// delay=150137
0x0, 0x2, 0x4a, 0x79,
// profile-specific extension data
0x54, 0x45, 0x53, 0x54,
0x44, 0x41, 0x54, 0x41,
},
Want: ReceiverReport{
SSRC: 0x902f9e2e,
Reports: []ReceptionReport{{
SSRC: 0xbc5e9a40,
FractionLost: 0,
TotalLost: 0,
LastSequenceNumber: 0x46e1,
Jitter: 273,
LastSenderReport: 0x9f36432,
Delay: 150137,
}},
ProfileExtensions: []byte{
0x54, 0x45, 0x53, 0x54,
0x44, 0x41, 0x54, 0x41,
},
},
},
{
Name: "short report",
Data: []byte{
// v=2, p=0, count=1, RR, len=7
0x81, 0xc9, 0x00, 0x0c,
// ssrc=0x902f9e2e
0x90, 0x2f, 0x9e, 0x2e,
// fracLost=0, totalLost=0
0x00, 0x00, 0x00, 0x00,
// report ends early
},
WantError: errPacketTooShort,
},
{
Name: "wrong type",
Data: []byte{
// v=2, p=0, count=1, SR, len=7
0x81, 0xc8, 0x0, 0x7,
// ssrc=0x902f9e2e
0x90, 0x2f, 0x9e, 0x2e,
// ssrc=0xbc5e9a40
0xbc, 0x5e, 0x9a, 0x40,
// fracLost=0, totalLost=0
0x0, 0x0, 0x0, 0x0,
// lastSeq=0x46e1
0x0, 0x0, 0x46, 0xe1,
// jitter=273
0x0, 0x0, 0x1, 0x11,
// lsr=0x9f36432
0x9, 0xf3, 0x64, 0x32,
// delay=150137
0x0, 0x2, 0x4a, 0x79,
},
WantError: errWrongType,
},
{
Name: "bad count in header",
Data: []byte{
// v=2, p=0, count=2, RR, len=7
0x82, 0xc9, 0x0, 0x7,
// ssrc=0x902f9e2e
0x90, 0x2f, 0x9e, 0x2e,
// ssrc=0xbc5e9a40
0xbc, 0x5e, 0x9a, 0x40,
// fracLost=0, totalLost=0
0x0, 0x0, 0x0, 0x0,
// lastSeq=0x46e1
0x0, 0x0, 0x46, 0xe1,
// jitter=273
0x0, 0x0, 0x1, 0x11,
// lsr=0x9f36432
0x9, 0xf3, 0x64, 0x32,
// delay=150137
0x0, 0x2, 0x4a, 0x79,
},
WantError: errInvalidHeader,
},
{
Name: "nil",
Data: nil,
WantError: errPacketTooShort,
},
} {
var rr ReceiverReport
err := rr.Unmarshal(test.Data)
if got, want := err, test.WantError; !errors.Is(got, want) {
t.Fatalf("Unmarshal %q rr: err = %#v, want %#v", test.Name, got, want)
}
if err != nil {
continue
}
if got, want := rr, test.Want; !reflect.DeepEqual(got, want) {
t.Fatalf("Unmarshal %q rr: got %#v, want %#v", test.Name, got, want)
}
}
}
func tooManyReports() []ReceptionReport {
// a slice with enough ReceptionReports to overflow an 5-bit int
var tooManyReports []ReceptionReport
for i := 0; i < (1 << 5); i++ {
tooManyReports = append(tooManyReports, ReceptionReport{
SSRC: 2,
FractionLost: 2,
TotalLost: 3,
LastSequenceNumber: 4,
Jitter: 5,
LastSenderReport: 6,
Delay: 7,
})
}
return tooManyReports
}
func TestReceiverReportRoundTrip(t *testing.T) {
for _, test := range []struct {
Name string
Report ReceiverReport
WantError error
}{
{
Name: "valid",
Report: ReceiverReport{
SSRC: 1,
Reports: []ReceptionReport{
{
SSRC: 2,
FractionLost: 2,
TotalLost: 3,
LastSequenceNumber: 4,
Jitter: 5,
LastSenderReport: 6,
Delay: 7,
},
{
SSRC: 0,
},
},
ProfileExtensions: []byte{},
},
},
{
Name: "also valid",
Report: ReceiverReport{
SSRC: 2,
Reports: []ReceptionReport{
{
SSRC: 999,
FractionLost: 30,
TotalLost: 12345,
LastSequenceNumber: 99,
Jitter: 22,
LastSenderReport: 92,
Delay: 46,
},
},
ProfileExtensions: []byte{},
},
},
{
Name: "totallost overflow",
Report: ReceiverReport{
SSRC: 1,
Reports: []ReceptionReport{{
TotalLost: 1 << 25,
}},
},
WantError: errInvalidTotalLost,
},
{
Name: "count overflow",
Report: ReceiverReport{
SSRC: 1,
Reports: tooManyReports(),
},
WantError: errTooManyReports,
},
} {
data, err := test.Report.Marshal()
if got, want := err, test.WantError; !errors.Is(got, want) {
t.Fatalf("Marshal %q: err = %#v, want %#v", test.Name, got, want)
}
if err != nil {
continue
}
var decoded ReceiverReport
if err := decoded.Unmarshal(data); err != nil {
t.Fatalf("Unmarshal %q: %#v", test.Name, err)
}
if got, want := decoded, test.Report; !reflect.DeepEqual(got, want) {
t.Fatalf("%q rr round trip: got %#v, want %#v", test.Name, got, want)
}
}
}
|
