media/audio/sounds/audio_stream_handler_unittest.cc

   1 // Copyright 2013 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 "base/basictypes.h"
   6 #include "base/bind.h"
   7 #include "base/bind_helpers.h"
   8 #include "base/compiler_specific.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/message_loop/message_loop.h"
  11 #include "base/run_loop.h"
  12 #include "media/audio/audio_io.h"
  13 #include "media/audio/audio_manager.h"
  14 #include "media/audio/simple_sources.h"
  15 #include "media/audio/sounds/audio_stream_handler.h"
  16 #include "media/audio/sounds/test_data.h"
  17 #include "media/base/channel_layout.h"
  18 #include "testing/gtest/include/gtest/gtest.h"
  19
  20 namespace media {
  21
  22 class AudioStreamHandlerTest : public testing::Test {
  23  public:
  24   AudioStreamHandlerTest() {}
  25   ~AudioStreamHandlerTest() override {}
  26
  27   void SetUp() override {
  28     audio_manager_.reset(AudioManager::CreateForTesting());
  29
  30     base::StringPiece data(kTestAudioData, arraysize(kTestAudioData));
  31     audio_stream_handler_.reset(new AudioStreamHandler(data));
  32   }
  33
  34   void TearDown() override {
  35     audio_stream_handler_.reset();
  36     audio_manager_.reset();
  37   }
  38
  39   AudioStreamHandler* audio_stream_handler() {
  40     return audio_stream_handler_.get();
  41   }
  42
  43   void SetObserverForTesting(AudioStreamHandler::TestObserver* observer) {
  44     AudioStreamHandler::SetObserverForTesting(observer);
  45   }
  46
  47   void SetAudioSourceForTesting(
  48       AudioOutputStream::AudioSourceCallback* source) {
  49     AudioStreamHandler::SetAudioSourceForTesting(source);
  50   }
  51
  52  private:
  53   scoped_ptr<AudioManager> audio_manager_;
  54   scoped_ptr<AudioStreamHandler> audio_stream_handler_;
  55
  56   base::MessageLoop message_loop_;
  57 };
  58
  59 TEST_F(AudioStreamHandlerTest, Play) {
  60   base::RunLoop run_loop;
  61   TestObserver observer(run_loop.QuitClosure());
  62
  63   SetObserverForTesting(&observer);
  64
  65   ASSERT_TRUE(audio_stream_handler()->IsInitialized());
  66   ASSERT_TRUE(audio_stream_handler()->Play());
  67
  68   run_loop.Run();
  69
  70   SetObserverForTesting(NULL);
  71
  72   ASSERT_EQ(1, observer.num_play_requests());
  73   ASSERT_EQ(1, observer.num_stop_requests());
  74   ASSERT_EQ(4, observer.cursor());
  75 }
  76
  77 TEST_F(AudioStreamHandlerTest, ConsecutivePlayRequests) {
  78   base::RunLoop run_loop;
  79   TestObserver observer(run_loop.QuitClosure());
  80   SineWaveAudioSource source(CHANNEL_LAYOUT_STEREO, 200.0, 8000);
  81
  82   SetObserverForTesting(&observer);
  83   SetAudioSourceForTesting(&source);
  84
  85   ASSERT_TRUE(audio_stream_handler()->IsInitialized());
  86
  87   ASSERT_TRUE(audio_stream_handler()->Play());
  88   base::MessageLoop::current()->PostDelayedTask(
  89       FROM_HERE,
  90       base::Bind(base::IgnoreResult(&AudioStreamHandler::Play),
  91                  base::Unretained(audio_stream_handler())),
  92       base::TimeDelta::FromSeconds(1));
  93   base::MessageLoop::current()->PostDelayedTask(
  94       FROM_HERE,
  95       base::Bind(&AudioStreamHandler::Stop,
  96                  base::Unretained(audio_stream_handler())),
  97       base::TimeDelta::FromSeconds(2));
  98
  99   run_loop.Run();
 100
 101   SetObserverForTesting(NULL);
 102   SetAudioSourceForTesting(NULL);
 103
 104   ASSERT_EQ(1, observer.num_play_requests());
 105   ASSERT_EQ(1, observer.num_stop_requests());
 106 }
 107
 108 }  // namespace media