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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include <string> |
| 6 |
| 7 #include "base/logging.h" |
| 8 #include "base/test/mock_log.h" |
| 9 #include "chromecast/media/audio/cast_audio_manager.h" |
| 10 #include "chromecast/media/audio/cast_audio_manager_factory.h" |
| 11 #include "chromecast/public/media/cast_audio_output_device.h" |
| 12 #include "chromecast/public/media/cast_audio_output_stream.h" |
| 13 #include "media/audio/audio_manager.h" |
| 14 #include "media/audio/fake_audio_log_factory.h" |
| 15 #include "testing/gmock/include/gmock/gmock.h" |
| 16 #include "testing/gtest/include/gtest/gtest.h" |
| 17 |
| 18 namespace chromecast { |
| 19 namespace media { |
| 20 namespace { |
| 21 |
| 22 // Makes reading the syntax prettier. |
| 23 using testing::_; |
| 24 |
| 25 // Testing constants. |
| 26 const int kTestBitDepth = 16; |
| 27 const auto kTestChannelLayout = ::media::ChannelLayout::CHANNEL_LAYOUT_STEREO; |
| 28 const char kTestDeviceId[] = "test_device_id"; |
| 29 const int kTestFramesPerBuffer = 1024; |
| 30 const int kTestSampleRate = 48000; |
| 31 |
| 32 // A stubbed-out output stream. |
| 33 class FakeCastAudioOutputStream : public CastAudioOutputStream { |
| 34 public: |
| 35 FakeCastAudioOutputStream() : callback_(nullptr) {} |
| 36 ~FakeCastAudioOutputStream() override {} |
| 37 |
| 38 // CastAudioOutputStream implementation: |
| 39 AudioParameters GetParameters() override { return params_; } |
| 40 bool Open() override { return true; } |
| 41 void Start(AudioSourceCallback* callback) override { callback_ = callback; } |
| 42 void Stop() override {} |
| 43 void SetVolume(double volume) override {} |
| 44 double GetVolume() override { return 0.0; } |
| 45 void Close() override {} |
| 46 |
| 47 private: |
| 48 AudioParameters params_; |
| 49 AudioSourceCallback* callback_; |
| 50 }; |
| 51 |
| 52 // A fake audio output device. This takes the place of a platform specific |
| 53 // implementation. |
| 54 class FakeCastAudioOutputDevice : public CastAudioOutputDevice { |
| 55 public: |
| 56 FakeCastAudioOutputDevice() : null_stream_(false) {} |
| 57 ~FakeCastAudioOutputDevice() override {} |
| 58 |
| 59 // Pass in true to return a nullptr when MakeOutputStream is called. |
| 60 void set_null_stream(bool null_stream) { null_stream_ = null_stream; } |
| 61 |
| 62 // AudioOutputDevice implementation: |
| 63 int GetMaximumOutputStreamsAllowed() override { return 1; } |
| 64 |
| 65 AudioParameters GetPreferredOutputStreamParameters( |
| 66 const AudioParameters& suggested) override { |
| 67 return suggested; |
| 68 } |
| 69 |
| 70 CastAudioOutputStream* MakeOutputStream(const AudioParameters& params, |
| 71 TaskRunner* task_runner) override { |
| 72 if (null_stream_) |
| 73 return nullptr; |
| 74 |
| 75 // Return a fake stream. |
| 76 output_stream_.reset(new FakeCastAudioOutputStream()); |
| 77 return output_stream_.get(); |
| 78 } |
| 79 |
| 80 private: |
| 81 bool null_stream_; |
| 82 scoped_ptr<CastAudioOutputStream> output_stream_; |
| 83 }; |
| 84 |
| 85 // The testbed for this suite of tests. |
| 86 class CastAudioManagerTest : public testing::Test { |
| 87 protected: |
| 88 CastAudioManagerTest() {} |
| 89 ~CastAudioManagerTest() override {} |
| 90 |
| 91 void SetUp() override { |
| 92 audio_manager_.reset( |
| 93 new CastAudioManager(&log_factory_, &audio_output_device_)); |
| 94 } |
| 95 |
| 96 // Constructor parameters are fakes. |
| 97 ::media::FakeAudioLogFactory log_factory_; |
| 98 FakeCastAudioOutputDevice audio_output_device_; |
| 99 |
| 100 // Class being tested. |
| 101 scoped_ptr<CastAudioManager> audio_manager_; |
| 102 }; |
| 103 |
| 104 TEST_F(CastAudioManagerTest, HasAudioOutputDevices) { |
| 105 EXPECT_TRUE(audio_manager_->HasAudioOutputDevices()); |
| 106 } |
| 107 |
| 108 TEST_F(CastAudioManagerTest, HasAudioInputDevices) { |
| 109 EXPECT_FALSE(audio_manager_->HasAudioInputDevices()); |
| 110 } |
| 111 |
| 112 TEST_F(CastAudioManagerTest, ShowAudioInputSettings) { |
| 113 base::test::MockLog log; |
| 114 log.StartCapturingLogs(); |
| 115 EXPECT_CALL(log, Log(logging::LOG_WARNING, _, _, _, _)); |
| 116 audio_manager_->ShowAudioInputSettings(); |
| 117 } |
| 118 |
| 119 TEST_F(CastAudioManagerTest, GetAudioInputDeviceNames) { |
| 120 base::test::MockLog log; |
| 121 log.StartCapturingLogs(); |
| 122 EXPECT_CALL(log, Log(logging::LOG_WARNING, _, _, _, _)); |
| 123 ::media::AudioDeviceNames device_names; |
| 124 audio_manager_->GetAudioInputDeviceNames(&device_names); |
| 125 } |
| 126 |
| 127 TEST_F(CastAudioManagerTest, GetInputStreamParameters) { |
| 128 base::test::MockLog log; |
| 129 log.StartCapturingLogs(); |
| 130 EXPECT_CALL(log, Log(logging::LOG_WARNING, _, _, _, _)); |
| 131 audio_manager_->GetInputStreamParameters(kTestDeviceId); |
| 132 } |
| 133 |
| 134 TEST_F(CastAudioManagerTest, GetPreferredOutputStreamParameters) { |
| 135 // Create the parameters. |
| 136 ::media::AudioParameters params(::media::AudioParameters::AUDIO_PCM_LINEAR, |
| 137 kTestChannelLayout, |
| 138 kTestSampleRate, |
| 139 kTestBitDepth, |
| 140 kTestFramesPerBuffer); |
| 141 |
| 142 ::media::AudioParameters params_out = |
| 143 audio_manager_->GetPreferredOutputStreamParameters("", params); |
| 144 ASSERT_TRUE(params.Equals(params_out)); |
| 145 } |
| 146 |
| 147 TEST_F(CastAudioManagerTest, MakeLinearOutputStream) { |
| 148 // Create the parameters. |
| 149 ::media::AudioParameters params(::media::AudioParameters::AUDIO_PCM_LINEAR, |
| 150 kTestChannelLayout, |
| 151 kTestSampleRate, |
| 152 kTestBitDepth, |
| 153 kTestFramesPerBuffer); |
| 154 |
| 155 // Test that a returned null stream trickles all the way up. |
| 156 audio_output_device_.set_null_stream(true); |
| 157 ::media::AudioOutputStream* stream = |
| 158 audio_manager_->MakeLinearOutputStream(params); |
| 159 EXPECT_EQ(nullptr, stream); |
| 160 |
| 161 // Test that a non-null stream returns successfully. |
| 162 audio_output_device_.set_null_stream(false); |
| 163 stream = audio_manager_->MakeLinearOutputStream(params); |
| 164 EXPECT_NE(nullptr, stream); |
| 165 } |
| 166 |
| 167 TEST_F(CastAudioManagerTest, MakeLowLatencyOutputStream) { |
| 168 // Create the parameters. |
| 169 ::media::AudioParameters params( |
| 170 ::media::AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 171 kTestChannelLayout, |
| 172 kTestSampleRate, |
| 173 kTestBitDepth, |
| 174 kTestFramesPerBuffer); |
| 175 |
| 176 // Test that a returned null stream trickles all the way up. |
| 177 audio_output_device_.set_null_stream(true); |
| 178 ::media::AudioOutputStream* stream = |
| 179 audio_manager_->MakeLowLatencyOutputStream(params, kTestDeviceId); |
| 180 EXPECT_EQ(nullptr, stream); |
| 181 |
| 182 // Test that a non-null stream returns successfully. |
| 183 audio_output_device_.set_null_stream(false); |
| 184 stream = audio_manager_->MakeLowLatencyOutputStream(params, kTestDeviceId); |
| 185 EXPECT_NE(nullptr, stream); |
| 186 } |
| 187 |
| 188 TEST_F(CastAudioManagerTest, MakeLinearInputStream) { |
| 189 base::test::MockLog log; |
| 190 log.StartCapturingLogs(); |
| 191 |
| 192 // Create the parameters. |
| 193 ::media::AudioParameters params(::media::AudioParameters::AUDIO_PCM_LINEAR, |
| 194 kTestChannelLayout, |
| 195 kTestSampleRate, |
| 196 kTestBitDepth, |
| 197 kTestFramesPerBuffer); |
| 198 |
| 199 // Test that the returned stream is always null. |
| 200 audio_output_device_.set_null_stream(true); |
| 201 EXPECT_CALL(log, Log(logging::LOG_WARNING, _, _, _, _)); |
| 202 ::media::AudioInputStream* stream = |
| 203 audio_manager_->MakeLinearInputStream(params, kTestDeviceId); |
| 204 EXPECT_EQ(nullptr, stream); |
| 205 |
| 206 audio_output_device_.set_null_stream(false); |
| 207 EXPECT_CALL(log, Log(logging::LOG_WARNING, _, _, _, _)); |
| 208 stream = audio_manager_->MakeLinearInputStream(params, kTestDeviceId); |
| 209 EXPECT_EQ(nullptr, stream); |
| 210 } |
| 211 |
| 212 TEST_F(CastAudioManagerTest, MakeLowLatencyInputStream) { |
| 213 base::test::MockLog log; |
| 214 log.StartCapturingLogs(); |
| 215 |
| 216 // Create the parameters. |
| 217 ::media::AudioParameters params( |
| 218 ::media::AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 219 kTestChannelLayout, |
| 220 kTestSampleRate, |
| 221 kTestBitDepth, |
| 222 kTestFramesPerBuffer); |
| 223 |
| 224 // Test that a the returned stream is always null. |
| 225 audio_output_device_.set_null_stream(true); |
| 226 EXPECT_CALL(log, Log(logging::LOG_WARNING, _, _, _, _)); |
| 227 ::media::AudioInputStream* stream = |
| 228 audio_manager_->MakeLowLatencyInputStream(params, kTestDeviceId); |
| 229 EXPECT_EQ(nullptr, stream); |
| 230 |
| 231 audio_output_device_.set_null_stream(false); |
| 232 EXPECT_CALL(log, Log(logging::LOG_WARNING, _, _, _, _)); |
| 233 stream = audio_manager_->MakeLowLatencyInputStream(params, kTestDeviceId); |
| 234 EXPECT_EQ(nullptr, stream); |
| 235 } |
| 236 |
| 237 } // namespace |
| 238 } // namespace media |
| 239 } // namespace chromecast |
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