1/*
2 * libjingle
3 * Copyright 2011 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 <string>
29
30#include "talk/app/webrtc/audiotrack.h"
31#include "talk/app/webrtc/mediastream.h"
32#include "talk/app/webrtc/videotrack.h"
33#include "testing/gmock/include/gmock/gmock.h"
34#include "testing/gtest/include/gtest/gtest.h"
35#include "webrtc/base/gunit.h"
36#include "webrtc/base/refcount.h"
37#include "webrtc/base/scoped_ptr.h"
38
39static const char kStreamLabel1[] = "local_stream_1";
40static const char kVideoTrackId[] = "dummy_video_cam_1";
41static const char kAudioTrackId[] = "dummy_microphone_1";
42
43using rtc::scoped_refptr;
44using ::testing::Exactly;
45
46namespace webrtc {
47
48// Helper class to test Observer.
49class MockObserver : public ObserverInterface {
50 public:
51  explicit MockObserver(NotifierInterface* notifier) : notifier_(notifier) {
52    notifier_->RegisterObserver(this);
53  }
54
55  ~MockObserver() { Unregister(); }
56
57  void Unregister() {
58    if (notifier_) {
59      notifier_->UnregisterObserver(this);
60      notifier_ = nullptr;
61    }
62  }
63
64  MOCK_METHOD0(OnChanged, void());
65
66 private:
67  NotifierInterface* notifier_;
68};
69
70class MediaStreamTest: public testing::Test {
71 protected:
72  virtual void SetUp() {
73    stream_ = MediaStream::Create(kStreamLabel1);
74    ASSERT_TRUE(stream_.get() != NULL);
75
76    video_track_ = VideoTrack::Create(kVideoTrackId, NULL);
77    ASSERT_TRUE(video_track_.get() != NULL);
78    EXPECT_EQ(MediaStreamTrackInterface::kInitializing, video_track_->state());
79
80    audio_track_ = AudioTrack::Create(kAudioTrackId, NULL);
81
82    ASSERT_TRUE(audio_track_.get() != NULL);
83    EXPECT_EQ(MediaStreamTrackInterface::kInitializing, audio_track_->state());
84
85    EXPECT_TRUE(stream_->AddTrack(video_track_));
86    EXPECT_FALSE(stream_->AddTrack(video_track_));
87    EXPECT_TRUE(stream_->AddTrack(audio_track_));
88    EXPECT_FALSE(stream_->AddTrack(audio_track_));
89  }
90
91  void ChangeTrack(MediaStreamTrackInterface* track) {
92    MockObserver observer(track);
93
94    EXPECT_CALL(observer, OnChanged())
95        .Times(Exactly(1));
96    track->set_enabled(false);
97    EXPECT_FALSE(track->enabled());
98
99    EXPECT_CALL(observer, OnChanged())
100        .Times(Exactly(1));
101    track->set_state(MediaStreamTrackInterface::kLive);
102    EXPECT_EQ(MediaStreamTrackInterface::kLive, track->state());
103  }
104
105  scoped_refptr<MediaStreamInterface> stream_;
106  scoped_refptr<AudioTrackInterface> audio_track_;
107  scoped_refptr<VideoTrackInterface> video_track_;
108};
109
110TEST_F(MediaStreamTest, GetTrackInfo) {
111  ASSERT_EQ(1u, stream_->GetVideoTracks().size());
112  ASSERT_EQ(1u, stream_->GetAudioTracks().size());
113
114  // Verify the video track.
115  scoped_refptr<webrtc::MediaStreamTrackInterface> video_track(
116      stream_->GetVideoTracks()[0]);
117  EXPECT_EQ(0, video_track->id().compare(kVideoTrackId));
118  EXPECT_TRUE(video_track->enabled());
119
120  ASSERT_EQ(1u, stream_->GetVideoTracks().size());
121  EXPECT_TRUE(stream_->GetVideoTracks()[0].get() == video_track.get());
122  EXPECT_TRUE(stream_->FindVideoTrack(video_track->id()).get()
123              == video_track.get());
124  video_track = stream_->GetVideoTracks()[0];
125  EXPECT_EQ(0, video_track->id().compare(kVideoTrackId));
126  EXPECT_TRUE(video_track->enabled());
127
128  // Verify the audio track.
129  scoped_refptr<webrtc::MediaStreamTrackInterface> audio_track(
130      stream_->GetAudioTracks()[0]);
131  EXPECT_EQ(0, audio_track->id().compare(kAudioTrackId));
132  EXPECT_TRUE(audio_track->enabled());
133  ASSERT_EQ(1u, stream_->GetAudioTracks().size());
134  EXPECT_TRUE(stream_->GetAudioTracks()[0].get() == audio_track.get());
135  EXPECT_TRUE(stream_->FindAudioTrack(audio_track->id()).get()
136              == audio_track.get());
137  audio_track = stream_->GetAudioTracks()[0];
138  EXPECT_EQ(0, audio_track->id().compare(kAudioTrackId));
139  EXPECT_TRUE(audio_track->enabled());
140}
141
142TEST_F(MediaStreamTest, RemoveTrack) {
143  MockObserver observer(stream_);
144
145  EXPECT_CALL(observer, OnChanged())
146      .Times(Exactly(2));
147
148  EXPECT_TRUE(stream_->RemoveTrack(audio_track_));
149  EXPECT_FALSE(stream_->RemoveTrack(audio_track_));
150  EXPECT_EQ(0u, stream_->GetAudioTracks().size());
151  EXPECT_EQ(0u, stream_->GetAudioTracks().size());
152
153  EXPECT_TRUE(stream_->RemoveTrack(video_track_));
154  EXPECT_FALSE(stream_->RemoveTrack(video_track_));
155
156  EXPECT_EQ(0u, stream_->GetVideoTracks().size());
157  EXPECT_EQ(0u, stream_->GetVideoTracks().size());
158
159  EXPECT_FALSE(stream_->RemoveTrack(static_cast<AudioTrackInterface*>(NULL)));
160  EXPECT_FALSE(stream_->RemoveTrack(static_cast<VideoTrackInterface*>(NULL)));
161}
162
163TEST_F(MediaStreamTest, ChangeVideoTrack) {
164  scoped_refptr<webrtc::VideoTrackInterface> video_track(
165      stream_->GetVideoTracks()[0]);
166  ChangeTrack(video_track.get());
167}
168
169TEST_F(MediaStreamTest, ChangeAudioTrack) {
170  scoped_refptr<webrtc::AudioTrackInterface> audio_track(
171      stream_->GetAudioTracks()[0]);
172  ChangeTrack(audio_track.get());
173}
174
175}  // namespace webrtc
176