// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT

package rtp

import (
	"testing"

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

func TestAudioLevelExtensionTooSmall(t *testing.T) {
	a := AudioLevelExtension{}
	rawData := []byte{}
	assert.ErrorIs(t, a.Unmarshal(rawData), errTooSmall)
}

func TestAudioLevelExtensionVoiceTrue(t *testing.T) {
	a1 := AudioLevelExtension{}
	rawData := []byte{
		0x88,
	}
	assert.NoError(t, a1.Unmarshal(rawData))

	a2 := AudioLevelExtension{
		Level: 8,
		Voice: true,
	}
	assert.Equal(t, a2, a1)

	dstData, _ := a2.Marshal()
	assert.Equal(t, rawData, dstData)
}

func TestAudioLevelExtensionVoiceFalse(t *testing.T) {
	a1 := AudioLevelExtension{}
	rawData := []byte{
		0x8,
	}
	assert.NoError(t, a1.Unmarshal(rawData))

	a2 := AudioLevelExtension{
		Level: 8,
		Voice: false,
	}
	assert.Equal(t, a2, a1)

	dstData, _ := a2.Marshal()
	assert.Equal(t, rawData, dstData)
}

func TestAudioLevelExtensionLevelOverflow(t *testing.T) {
	a := AudioLevelExtension{
		Level: 128,
		Voice: false,
	}

	_, err := a.Marshal()
	assert.ErrorIs(t, err, errAudioLevelOverflow)
}