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      1 /*
      2  * libjingle
      3  * Copyright 2008 Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include "talk/app/webrtc/fakemediacontroller.h"
     29 #include "talk/media/base/fakecapturemanager.h"
     30 #include "talk/media/base/fakemediaengine.h"
     31 #include "talk/media/base/fakevideocapturer.h"
     32 #include "talk/media/base/testutils.h"
     33 #include "talk/media/webrtc/fakewebrtccall.h"
     34 #include "talk/session/media/channelmanager.h"
     35 #include "webrtc/base/gunit.h"
     36 #include "webrtc/base/logging.h"
     37 #include "webrtc/base/thread.h"
     38 #include "webrtc/p2p/base/faketransportcontroller.h"
     39 
     40 namespace cricket {
     41 
     42 static const AudioCodec kAudioCodecs[] = {
     43   AudioCodec(97, "voice", 1, 2, 3, 0),
     44   AudioCodec(111, "OPUS", 48000, 32000, 2, 0),
     45 };
     46 
     47 static const VideoCodec kVideoCodecs[] = {
     48   VideoCodec(99, "H264", 100, 200, 300, 0),
     49   VideoCodec(100, "VP8", 100, 200, 300, 0),
     50   VideoCodec(96, "rtx", 100, 200, 300, 0),
     51 };
     52 
     53 class ChannelManagerTest : public testing::Test {
     54  protected:
     55   ChannelManagerTest()
     56       : fme_(new cricket::FakeMediaEngine()),
     57         fdme_(new cricket::FakeDataEngine()),
     58         fcm_(new cricket::FakeCaptureManager()),
     59         cm_(new cricket::ChannelManager(fme_,
     60                                         fdme_,
     61                                         fcm_,
     62                                         rtc::Thread::Current())),
     63         fake_call_(webrtc::Call::Config()),
     64         fake_mc_(cm_, &fake_call_),
     65         transport_controller_(
     66             new cricket::FakeTransportController(ICEROLE_CONTROLLING)) {}
     67 
     68   virtual void SetUp() {
     69     fme_->SetAudioCodecs(MAKE_VECTOR(kAudioCodecs));
     70     fme_->SetVideoCodecs(MAKE_VECTOR(kVideoCodecs));
     71   }
     72 
     73   virtual void TearDown() {
     74     delete transport_controller_;
     75     delete cm_;
     76     cm_ = NULL;
     77     fcm_ = NULL;
     78     fdme_ = NULL;
     79     fme_ = NULL;
     80   }
     81 
     82   rtc::Thread worker_;
     83   cricket::FakeMediaEngine* fme_;
     84   cricket::FakeDataEngine* fdme_;
     85   cricket::FakeCaptureManager* fcm_;
     86   cricket::ChannelManager* cm_;
     87   cricket::FakeCall fake_call_;
     88   cricket::FakeMediaController fake_mc_;
     89   cricket::FakeTransportController* transport_controller_;
     90 };
     91 
     92 // Test that we startup/shutdown properly.
     93 TEST_F(ChannelManagerTest, StartupShutdown) {
     94   EXPECT_FALSE(cm_->initialized());
     95   EXPECT_EQ(rtc::Thread::Current(), cm_->worker_thread());
     96   EXPECT_TRUE(cm_->Init());
     97   EXPECT_TRUE(cm_->initialized());
     98   cm_->Terminate();
     99   EXPECT_FALSE(cm_->initialized());
    100 }
    101 
    102 // Test that we startup/shutdown properly with a worker thread.
    103 TEST_F(ChannelManagerTest, StartupShutdownOnThread) {
    104   worker_.Start();
    105   EXPECT_FALSE(cm_->initialized());
    106   EXPECT_EQ(rtc::Thread::Current(), cm_->worker_thread());
    107   EXPECT_TRUE(cm_->set_worker_thread(&worker_));
    108   EXPECT_EQ(&worker_, cm_->worker_thread());
    109   EXPECT_TRUE(cm_->Init());
    110   EXPECT_TRUE(cm_->initialized());
    111   // Setting the worker thread while initialized should fail.
    112   EXPECT_FALSE(cm_->set_worker_thread(rtc::Thread::Current()));
    113   cm_->Terminate();
    114   EXPECT_FALSE(cm_->initialized());
    115 }
    116 
    117 // Test that we can create and destroy a voice and video channel.
    118 TEST_F(ChannelManagerTest, CreateDestroyChannels) {
    119   EXPECT_TRUE(cm_->Init());
    120   cricket::VoiceChannel* voice_channel =
    121       cm_->CreateVoiceChannel(&fake_mc_, transport_controller_,
    122                               cricket::CN_AUDIO, false, AudioOptions());
    123   EXPECT_TRUE(voice_channel != nullptr);
    124   cricket::VideoChannel* video_channel =
    125       cm_->CreateVideoChannel(&fake_mc_, transport_controller_,
    126                               cricket::CN_VIDEO, false, VideoOptions());
    127   EXPECT_TRUE(video_channel != nullptr);
    128   cricket::DataChannel* data_channel = cm_->CreateDataChannel(
    129       transport_controller_, cricket::CN_DATA, false, cricket::DCT_RTP);
    130   EXPECT_TRUE(data_channel != nullptr);
    131   cm_->DestroyVideoChannel(video_channel);
    132   cm_->DestroyVoiceChannel(voice_channel);
    133   cm_->DestroyDataChannel(data_channel);
    134   cm_->Terminate();
    135 }
    136 
    137 // Test that we can create and destroy a voice and video channel with a worker.
    138 TEST_F(ChannelManagerTest, CreateDestroyChannelsOnThread) {
    139   worker_.Start();
    140   EXPECT_TRUE(cm_->set_worker_thread(&worker_));
    141   EXPECT_TRUE(cm_->Init());
    142   delete transport_controller_;
    143   transport_controller_ =
    144       new cricket::FakeTransportController(&worker_, ICEROLE_CONTROLLING);
    145   cricket::VoiceChannel* voice_channel =
    146       cm_->CreateVoiceChannel(&fake_mc_, transport_controller_,
    147                               cricket::CN_AUDIO, false, AudioOptions());
    148   EXPECT_TRUE(voice_channel != nullptr);
    149   cricket::VideoChannel* video_channel =
    150       cm_->CreateVideoChannel(&fake_mc_, transport_controller_,
    151                               cricket::CN_VIDEO, false, VideoOptions());
    152   EXPECT_TRUE(video_channel != nullptr);
    153   cricket::DataChannel* data_channel = cm_->CreateDataChannel(
    154       transport_controller_, cricket::CN_DATA, false, cricket::DCT_RTP);
    155   EXPECT_TRUE(data_channel != nullptr);
    156   cm_->DestroyVideoChannel(video_channel);
    157   cm_->DestroyVoiceChannel(voice_channel);
    158   cm_->DestroyDataChannel(data_channel);
    159   cm_->Terminate();
    160 }
    161 
    162 // Test that we fail to create a voice/video channel if the session is unable
    163 // to create a cricket::TransportChannel
    164 TEST_F(ChannelManagerTest, NoTransportChannelTest) {
    165   EXPECT_TRUE(cm_->Init());
    166   transport_controller_->set_fail_channel_creation(true);
    167   // The test is useless unless the session does not fail creating
    168   // cricket::TransportChannel.
    169   ASSERT_TRUE(transport_controller_->CreateTransportChannel_w(
    170                   "audio", cricket::ICE_CANDIDATE_COMPONENT_RTP) == nullptr);
    171 
    172   cricket::VoiceChannel* voice_channel =
    173       cm_->CreateVoiceChannel(&fake_mc_, transport_controller_,
    174                               cricket::CN_AUDIO, false, AudioOptions());
    175   EXPECT_TRUE(voice_channel == nullptr);
    176   cricket::VideoChannel* video_channel =
    177       cm_->CreateVideoChannel(&fake_mc_, transport_controller_,
    178                               cricket::CN_VIDEO, false, VideoOptions());
    179   EXPECT_TRUE(video_channel == nullptr);
    180   cricket::DataChannel* data_channel = cm_->CreateDataChannel(
    181       transport_controller_, cricket::CN_DATA, false, cricket::DCT_RTP);
    182   EXPECT_TRUE(data_channel == nullptr);
    183   cm_->Terminate();
    184 }
    185 
    186 TEST_F(ChannelManagerTest, GetSetOutputVolumeBeforeInit) {
    187   int level;
    188   // Before init, SetOutputVolume() remembers the volume but does not change the
    189   // volume of the engine. GetOutputVolume() should fail.
    190   EXPECT_EQ(-1, fme_->output_volume());
    191   EXPECT_FALSE(cm_->GetOutputVolume(&level));
    192   EXPECT_FALSE(cm_->SetOutputVolume(-1));  // Invalid volume.
    193   EXPECT_TRUE(cm_->SetOutputVolume(99));
    194   EXPECT_EQ(-1, fme_->output_volume());
    195 
    196   // Init() will apply the remembered volume.
    197   EXPECT_TRUE(cm_->Init());
    198   EXPECT_TRUE(cm_->GetOutputVolume(&level));
    199   EXPECT_EQ(99, level);
    200   EXPECT_EQ(level, fme_->output_volume());
    201 
    202   EXPECT_TRUE(cm_->SetOutputVolume(60));
    203   EXPECT_TRUE(cm_->GetOutputVolume(&level));
    204   EXPECT_EQ(60, level);
    205   EXPECT_EQ(level, fme_->output_volume());
    206 }
    207 
    208 TEST_F(ChannelManagerTest, GetSetOutputVolume) {
    209   int level;
    210   EXPECT_TRUE(cm_->Init());
    211   EXPECT_TRUE(cm_->GetOutputVolume(&level));
    212   EXPECT_EQ(level, fme_->output_volume());
    213 
    214   EXPECT_FALSE(cm_->SetOutputVolume(-1));  // Invalid volume.
    215   EXPECT_TRUE(cm_->SetOutputVolume(60));
    216   EXPECT_EQ(60, fme_->output_volume());
    217   EXPECT_TRUE(cm_->GetOutputVolume(&level));
    218   EXPECT_EQ(60, level);
    219 }
    220 
    221 TEST_F(ChannelManagerTest, SetVideoRtxEnabled) {
    222   std::vector<VideoCodec> codecs;
    223   const VideoCodec rtx_codec(96, "rtx", 0, 0, 0, 0);
    224 
    225   // By default RTX is disabled.
    226   cm_->GetSupportedVideoCodecs(&codecs);
    227   EXPECT_FALSE(ContainsMatchingCodec(codecs, rtx_codec));
    228 
    229   // Enable and check.
    230   EXPECT_TRUE(cm_->SetVideoRtxEnabled(true));
    231   cm_->GetSupportedVideoCodecs(&codecs);
    232   EXPECT_TRUE(ContainsMatchingCodec(codecs, rtx_codec));
    233 
    234   // Disable and check.
    235   EXPECT_TRUE(cm_->SetVideoRtxEnabled(false));
    236   cm_->GetSupportedVideoCodecs(&codecs);
    237   EXPECT_FALSE(ContainsMatchingCodec(codecs, rtx_codec));
    238 
    239   // Cannot toggle rtx after initialization.
    240   EXPECT_TRUE(cm_->Init());
    241   EXPECT_FALSE(cm_->SetVideoRtxEnabled(true));
    242   EXPECT_FALSE(cm_->SetVideoRtxEnabled(false));
    243 
    244   // Can set again after terminate.
    245   cm_->Terminate();
    246   EXPECT_TRUE(cm_->SetVideoRtxEnabled(true));
    247   cm_->GetSupportedVideoCodecs(&codecs);
    248   EXPECT_TRUE(ContainsMatchingCodec(codecs, rtx_codec));
    249 }
    250 
    251 }  // namespace cricket
    252