rtp/playoutdelayextension_test.go at master · pion/rtp · GitHub

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

package rtp

import (
	"io"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestPlayoutDelayExtensionTooSmall(t *testing.T) {
	t1 := PlayoutDelayExtension{}

	var rawData []byte

	err := t1.Unmarshal(rawData)
	assert.ErrorIs(t, err, errTooSmall)
}

func TestPlayoutDelayExtensionTooLarge(t *testing.T) {
	t1 := PlayoutDelayExtension{MinDelay: 1 << 12, MaxDelay: 1 << 12}

	_, err := t1.Marshal()
	assert.ErrorIs(t, err, errPlayoutDelayInvalidValue)

	_, err = t1.MarshalTo(make([]byte, 10))
	assert.ErrorIs(t, err, errPlayoutDelayInvalidValue)
}

func TestPlayoutDelayExtension(t *testing.T) {
	t1 := PlayoutDelayExtension{}

	rawData := []byte{
		0x01, 0x01, 0x00,
	}

	err := t1.Unmarshal(rawData)
	assert.NoError(t, err)

	t2 := PlayoutDelayExtension{
		MinDelay: 1 << 4, MaxDelay: 1 << 8,
	}

	assert.Equal(t, t1, t2)

	dstData, _ := t2.Marshal()
	assert.Equal(t, dstData, rawData)
}

func TestPlayoutDelayExtensionExtraBytes(t *testing.T) {
	t1 := PlayoutDelayExtension{}

	rawData := []byte{
		0x01, 0x01, 0x00, 0xff, 0xff,
	}

	err := t1.Unmarshal(rawData)
	assert.NoError(t, err)

	t2 := PlayoutDelayExtension{
		MinDelay: 1 << 4, MaxDelay: 1 << 8,
	}

	assert.Equal(t, t1, t2)
}

func TestPlayoutDelayExtensionMarshalTo(t *testing.T) {
	ext := PlayoutDelayExtension{MinDelay: 100, MaxDelay: 200}

	buf := make([]byte, ext.MarshalSize())
	n, err := ext.MarshalTo(buf)
	assert.NoError(t, err)
	assert.Equal(t, ext.MarshalSize(), n)

	expected, _ := ext.Marshal()
	assert.Equal(t, expected, buf)

	_, err = ext.MarshalTo(nil)
	assert.ErrorIs(t, err, io.ErrShortBuffer)
}

//nolint:gochecknoglobals
var (
	playoutDelaySink    []byte
	playoutDelayBuf     = make([]byte, playoutDelayExtensionSize)
	playoutDelaySinkInt int
)

func BenchmarkPlayoutDelayExtension_Marshal(b *testing.B) {
	ext := PlayoutDelayExtension{MinDelay: 100, MaxDelay: 200}
	b.ReportAllocs()

	for b.Loop() {
		playoutDelaySink, _ = ext.Marshal()
	}
}

func BenchmarkPlayoutDelayExtension_MarshalTo(b *testing.B) {
	ext := PlayoutDelayExtension{MinDelay: 100, MaxDelay: 200}
	b.ReportAllocs()

	for b.Loop() {
		playoutDelaySinkInt, _ = ext.MarshalTo(playoutDelayBuf)
	}
}