peer_connection_unittest.cpp

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this file,

 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#include <compare>

#include "MockJsepCodecPreferences.h"

#include "PeerConnectionImpl.h"

#include "api/rtp_parameters.h"

#include "gtest/gtest.h"

namespace mozilla {

static std::strong_ordering RtpExtensionHeaderUriComparator(

    const PeerConnectionImpl::RtpExtensionHeader& aHeader, const char* aUri) {

  return aHeader.extensionname <=> nsDependentCString(aUri);

static const PeerConnectionImpl::RtpExtensionHeader* FindExtension(

    const nsTArray<PeerConnectionImpl::RtpExtensionHeader>& aHeaders,

    const char* aUri) {

  auto idx = aHeaders.IndexOf(aUri, 0, &RtpExtensionHeaderUriComparator);

  if (idx == aHeaders.NoIndex) {

    return nullptr;

  return &aHeaders[idx];

TEST(PeerConnectionImplTest, GetDefaultRtpExtensionsTransportCCBoth)

  MockJsepCodecPreferences prefs;

  prefs.mUseTransportCC = true;

  prefs.mUseAudioTransportCC = true;

  AutoTArray<PeerConnectionImpl::RtpExtensionHeader, 16> headers;

  PeerConnectionImpl::GetDefaultRtpExtensions(prefs, &headers);

  const auto* ext =

      FindExtension(headers, webrtc::RtpExtension::kTransportSequenceNumberUri);

  ASSERT_NE(nullptr, ext);

  EXPECT_EQ(JsepMediaType::kAudioVideo, ext->mMediaType);

TEST(PeerConnectionImplTest, GetDefaultRtpExtensionsTransportCCVideoOnly)

  MockJsepCodecPreferences prefs;

  prefs.mUseTransportCC = true;

  prefs.mUseAudioTransportCC = false;

  AutoTArray<PeerConnectionImpl::RtpExtensionHeader, 16> headers;

  PeerConnectionImpl::GetDefaultRtpExtensions(prefs, &headers);

  const auto* ext =

      FindExtension(headers, webrtc::RtpExtension::kTransportSequenceNumberUri);

  ASSERT_NE(nullptr, ext);

  EXPECT_EQ(JsepMediaType::kVideo, ext->mMediaType);

TEST(PeerConnectionImplTest, GetDefaultRtpExtensionsTransportCCAudioOnly)

  MockJsepCodecPreferences prefs;

  prefs.mUseTransportCC = false;

  prefs.mUseAudioTransportCC = true;

  AutoTArray<PeerConnectionImpl::RtpExtensionHeader, 16> headers;

  PeerConnectionImpl::GetDefaultRtpExtensions(prefs, &headers);

  const auto* ext =

      FindExtension(headers, webrtc::RtpExtension::kTransportSequenceNumberUri);

  ASSERT_NE(nullptr, ext);

  EXPECT_EQ(JsepMediaType::kAudio, ext->mMediaType);

TEST(PeerConnectionImplTest, GetDefaultRtpExtensionsTransportCCNeither)

  MockJsepCodecPreferences prefs;

  prefs.mUseTransportCC = false;

  prefs.mUseAudioTransportCC = false;

  AutoTArray<PeerConnectionImpl::RtpExtensionHeader, 16> headers;

  PeerConnectionImpl::GetDefaultRtpExtensions(prefs, &headers);

  EXPECT_EQ(nullptr,

            FindExtension(headers,

                          webrtc::RtpExtension::kTransportSequenceNumberUri));

}  // namespace mozilla