interceptor/attributes_test.go at main · pion/interceptor · GitHub

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// SPDX-FileCopyrightText: 2026 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT

package interceptor

import (
	"testing"

	"github.com/pion/rtcp"
	"github.com/pion/rtp"
	"github.com/stretchr/testify/assert"
)

func TestAttributesGetRTPHeader(t *testing.T) {
	t.Run("NilHeader", func(t *testing.T) {
		attributes := Attributes{}
		_, err := attributes.GetRTPHeader(nil)
		assert.Error(t, err)
	})

	t.Run("Present", func(t *testing.T) {
		attributes := Attributes{
			rtpHeaderKey: &rtp.Header{
				Version:          0,
				Padding:          false,
				Extension:        false,
				Marker:           false,
				PayloadType:      0,
				SequenceNumber:   0,
				Timestamp:        0,
				SSRC:             0,
				ExtensionProfile: 0,
				Extensions:       nil,
			},
		}
		header, err := attributes.GetRTPHeader(nil)
		assert.NoError(t, err)
		assert.Equal(t, attributes[rtpHeaderKey], header)
	})

	t.Run("NotPresent", func(t *testing.T) {
		for msg, nilAttributes := range map[string]bool{"NilAttributes": true, "EmptyAttributes": false} {
			t.Run(msg, func(t *testing.T) {
				var attributes Attributes
				if !nilAttributes {
					attributes = Attributes{}
				}
				hdr := &rtp.Header{
					Version:          0,
					Padding:          false,
					Extension:        false,
					Marker:           false,
					PayloadType:      0,
					SequenceNumber:   0,
					Timestamp:        0,
					SSRC:             0,
					ExtensionProfile: 0,
					Extensions:       nil,
				}
				buf, err := hdr.Marshal()
				assert.NoError(t, err)
				header, err := attributes.GetRTPHeader(buf)
				assert.NoError(t, err)
				assert.Equal(t, hdr, header)

				// If attributes were provided, make sure GetRTPHeader returns cached results.
				if !nilAttributes {
					amortizedAllocs := testing.AllocsPerRun(100, func() {
						_, _ = attributes.GetRTPHeader(buf)
					})
					assert.Zero(t, amortizedAllocs)
				}
			})
		}
	})

	t.Run("NotPresentFromFullRTPPacket", func(t *testing.T) {
		for msg, nilAttributes := range map[string]bool{"NilAttributes": true, "EmptyAttributes": false} {
			t.Run(msg, func(t *testing.T) {
				var attributes Attributes
				if !nilAttributes {
					attributes = Attributes{}
				}
				pkt := &rtp.Packet{Header: rtp.Header{
					Version:          0,
					Padding:          false,
					Extension:        false,
					Marker:           false,
					PayloadType:      0,
					SequenceNumber:   0,
					Timestamp:        0,
					SSRC:             0,
					ExtensionProfile: 0,
					Extensions:       nil,
				}, Payload: make([]byte, 1000)}
				buf, err := pkt.Marshal()
				assert.NoError(t, err)
				header, err := attributes.GetRTPHeader(buf)
				assert.NoError(t, err)
				assert.Equal(t, &pkt.Header, header)
			})
		}
	})
}

func TestAttributesGetRTCPPackets(t *testing.T) {
	t.Run("NilPacket", func(t *testing.T) {
		attributes := Attributes{}
		_, err := attributes.GetRTCPPackets(nil)
		assert.Error(t, err)
	})

	t.Run("Present", func(t *testing.T) {
		attributes := Attributes{
			rtcpPacketsKey: []rtcp.Packet{
				&rtcp.TransportLayerCC{
					Header:             rtcp.Header{Padding: false, Count: 0, Type: 0, Length: 0},
					SenderSSRC:         0,
					MediaSSRC:          0,
					BaseSequenceNumber: 0,
					PacketStatusCount:  0,
					ReferenceTime:      0,
					FbPktCount:         0,
					PacketChunks:       []rtcp.PacketStatusChunk{},
					RecvDeltas:         []*rtcp.RecvDelta{},
				},
			},
		}
		packets, err := attributes.GetRTCPPackets(nil)
		assert.NoError(t, err)
		assert.Equal(t, attributes[rtcpPacketsKey], packets)
	})

	t.Run("NotPresent", func(t *testing.T) {
		for msg, nilAttributes := range map[string]bool{"NilAttributes": true, "EmptyAttributes": false} {
			t.Run(msg, func(t *testing.T) {
				var attributes Attributes
				if !nilAttributes {
					attributes = Attributes{}
				}
				sr := &rtcp.SenderReport{
					SSRC:        0,
					NTPTime:     0,
					RTPTime:     0,
					PacketCount: 0,
					OctetCount:  0,
				}
				buf, err := sr.Marshal()
				assert.NoError(t, err)
				packets, err := attributes.GetRTCPPackets(buf)
				assert.NoError(t, err)
				assert.Equal(t, []rtcp.Packet{sr}, packets)

				// If attributes were provided, make sure GetRTCPPackets returns cached results.
				if !nilAttributes {
					amortizedAllocs := testing.AllocsPerRun(100, func() {
						_, _ = attributes.GetRTCPPackets(buf)
					})
					assert.Zero(t, amortizedAllocs)
				}
			})
		}
	})
}