SetVolume and GetVolume take one volume instead of separate left and right vo...

media/audio/mac/audio_output_mac_unittest.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
 #include "media/audio/audio_output.h"
 #include "media/audio/simple_sources.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 74 matching lines @@
   audio_man->MakeAudioStream(AudioManager::AUDIO_PCM_LINEAR, 1,
                              AudioManager::kAudioCDSampleRate, 16);
   ASSERT_TRUE(NULL != oas);
 
   SineWaveAudioSource source(SineWaveAudioSource::FORMAT_16BIT_LINEAR_PCM, 1,
                              200.0, AudioManager::kAudioCDSampleRate);
   size_t bytes_100_ms = (AudioManager::kAudioCDSampleRate / 10) * 2;
 
   EXPECT_TRUE(oas->Open(bytes_100_ms));
 
-  oas->SetVolume(0.5, 0.5);
+  oas->SetVolume(0.5);
   oas->Start(&source);
   usleep(1500000);
 
   // Test that the volume is within the set limits.
-  double left_volume = 0.0;
-  double right_volume = 0.0;
-  oas->GetVolume(&left_volume, &right_volume);
-  EXPECT_LT(left_volume, 0.51);
-  EXPECT_GT(left_volume, 0.49);
-  EXPECT_LT(right_volume, 0.51);
-  EXPECT_GT(right_volume, 0.49);
-
+  double volume = 0.0;
+  oas->GetVolume(&volume);
+  EXPECT_LT(volume, 0.51);
+  EXPECT_GT(volume, 0.49);
   oas->Stop();
   oas->Close();
 }
 
 // This test produces actual audio for 1.5 seconds on the default wave device at
 // 22K s/sec. Parameters have been chosen carefully so you should not hear pops
 // or noises while the sound is playing. The sound must also be identical to the
 // sound of PCMWaveStreamPlay200HzTone44KssMono test.
 TEST(MacAudioTest, PCMWaveStreamPlay200HzTone22KssMono) {
   AudioManager* audio_man = AudioManager::GetAudioManager();
@@ skipping 49 matching lines @@
       .WillOnce(Return(0));
   EXPECT_CALL(source, OnMoreData(oas, NotNull(), bytes_100_ms, _))
       .Times(AnyNumber())
       .WillRepeatedly(Return(0));
 
   oas->Start(&source);
   usleep(500000);
   oas->Stop();
   oas->Close();
 }