session_description_unittest.cc

/*

 *  Copyright 2018 The WebRTC project authors. All Rights Reserved.

 *  Use of this source code is governed by a BSD-style license

 *  that can be found in the LICENSE file in the root of the source

 *  tree. An additional intellectual property rights grant can be found

 *  in the file PATENTS.  All contributing project authors may

 *  be found in the AUTHORS file in the root of the source tree.

*/

#include "pc/session_description.h"

#include "test/gtest.h"

namespace cricket {

TEST(MediaContentDescriptionTest, ExtmapAllowMixedDefaultValue) {

  VideoContentDescription video_desc;

  EXPECT_EQ(MediaContentDescription::kMedia,

            video_desc.extmap_allow_mixed_enum());

TEST(MediaContentDescriptionTest, SetExtmapAllowMixed) {

  VideoContentDescription video_desc;

  video_desc.set_extmap_allow_mixed_enum(MediaContentDescription::kNo);

  EXPECT_EQ(MediaContentDescription::kNo, video_desc.extmap_allow_mixed_enum());

  video_desc.set_extmap_allow_mixed_enum(MediaContentDescription::kMedia);

  EXPECT_EQ(MediaContentDescription::kMedia,

            video_desc.extmap_allow_mixed_enum());

  video_desc.set_extmap_allow_mixed_enum(MediaContentDescription::kSession);

  EXPECT_EQ(MediaContentDescription::kSession,

            video_desc.extmap_allow_mixed_enum());

  // Not allowed to downgrade from kSession to kMedia.

  video_desc.set_extmap_allow_mixed_enum(MediaContentDescription::kMedia);

  EXPECT_EQ(MediaContentDescription::kSession,

            video_desc.extmap_allow_mixed_enum());

  // Always okay to set not supported.

  video_desc.set_extmap_allow_mixed_enum(MediaContentDescription::kNo);

  EXPECT_EQ(MediaContentDescription::kNo, video_desc.extmap_allow_mixed_enum());

  video_desc.set_extmap_allow_mixed_enum(MediaContentDescription::kMedia);

  EXPECT_EQ(MediaContentDescription::kMedia,

            video_desc.extmap_allow_mixed_enum());

  video_desc.set_extmap_allow_mixed_enum(MediaContentDescription::kNo);

  EXPECT_EQ(MediaContentDescription::kNo, video_desc.extmap_allow_mixed_enum());

TEST(MediaContentDescriptionTest, MixedOneTwoByteHeaderSupported) {

  VideoContentDescription video_desc;

  video_desc.set_extmap_allow_mixed_enum(MediaContentDescription::kNo);

  EXPECT_FALSE(video_desc.extmap_allow_mixed());

  video_desc.set_extmap_allow_mixed_enum(MediaContentDescription::kMedia);

  EXPECT_TRUE(video_desc.extmap_allow_mixed());

  video_desc.set_extmap_allow_mixed_enum(MediaContentDescription::kSession);

  EXPECT_TRUE(video_desc.extmap_allow_mixed());

TEST(SessionDescriptionTest, SetExtmapAllowMixed) {

  SessionDescription session_desc;

  session_desc.set_extmap_allow_mixed(true);

  EXPECT_TRUE(session_desc.extmap_allow_mixed());

  session_desc.set_extmap_allow_mixed(false);

  EXPECT_FALSE(session_desc.extmap_allow_mixed());

TEST(SessionDescriptionTest, SetExtmapAllowMixedPropagatesToMediaLevel) {

  SessionDescription session_desc;

  session_desc.AddContent("video", MediaProtocolType::kRtp,

                          std::make_unique<VideoContentDescription>());

  MediaContentDescription* video_desc =

      session_desc.GetContentDescriptionByName("video");

  // Setting true on session level propagates to media level.

  session_desc.set_extmap_allow_mixed(true);

  EXPECT_EQ(MediaContentDescription::kSession,

            video_desc->extmap_allow_mixed_enum());

  // Don't downgrade from session level to media level

  video_desc->set_extmap_allow_mixed_enum(MediaContentDescription::kMedia);

  EXPECT_EQ(MediaContentDescription::kSession,

            video_desc->extmap_allow_mixed_enum());

  // Setting false on session level propagates to media level if the current

  // state is kSession.

  session_desc.set_extmap_allow_mixed(false);

  EXPECT_EQ(MediaContentDescription::kNo,

            video_desc->extmap_allow_mixed_enum());

  // Now possible to set at media level.

  video_desc->set_extmap_allow_mixed_enum(MediaContentDescription::kMedia);

  EXPECT_EQ(MediaContentDescription::kMedia,

            video_desc->extmap_allow_mixed_enum());

  // Setting false on session level does not override on media level if current

  // state is kMedia.

  session_desc.set_extmap_allow_mixed(false);

  EXPECT_EQ(MediaContentDescription::kMedia,

            video_desc->extmap_allow_mixed_enum());

  // Setting true on session level overrides setting on media level.

  session_desc.set_extmap_allow_mixed(true);

  EXPECT_EQ(MediaContentDescription::kSession,

            video_desc->extmap_allow_mixed_enum());

TEST(SessionDescriptionTest, AddContentTransfersExtmapAllowMixedSetting) {

  SessionDescription session_desc;

  session_desc.set_extmap_allow_mixed(false);

  std::unique_ptr<MediaContentDescription> audio_desc =

      std::make_unique<AudioContentDescription>();

  audio_desc->set_extmap_allow_mixed_enum(MediaContentDescription::kMedia);

  // If session setting is false, media level setting is preserved when new

  // content is added.

  session_desc.AddContent("audio", MediaProtocolType::kRtp,

                          std::move(audio_desc));

  EXPECT_EQ(MediaContentDescription::kMedia,

            session_desc.GetContentDescriptionByName("audio")

                ->extmap_allow_mixed_enum());

  // If session setting is true, it's transferred to media level when new

  // content is added.

  session_desc.set_extmap_allow_mixed(true);

  std::unique_ptr<MediaContentDescription> video_desc =

      std::make_unique<VideoContentDescription>();

  session_desc.AddContent("video", MediaProtocolType::kRtp,

                          std::move(video_desc));

  EXPECT_EQ(MediaContentDescription::kSession,

            session_desc.GetContentDescriptionByName("video")

                ->extmap_allow_mixed_enum());

}  // namespace cricket