Redesign the copresence audio handlers.

components/copresence/mediums/audio/audio_manager_unittest.cc

Index: components/copresence/mediums/audio/audio_manager_unittest.cc
diff --git a/components/copresence/mediums/audio/audio_manager_unittest.cc b/components/copresence/mediums/audio/audio_manager_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..104b1fb5ca279f986a9269f90c33b10527f88b8c
--- /dev/null
+++ b/components/copresence/mediums/audio/audio_manager_unittest.cc
@@ -0,0 +1,151 @@
+// Copyright 2014 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 "components/copresence/mediums/audio/audio_manager.h"
+
+#include "base/bind.h"
+#include "base/message_loop/message_loop.h"
+#include "components/copresence/mediums/audio/audio_manager_impl.h"
+#include "components/copresence/mediums/audio/audio_player.h"
+#include "components/copresence/mediums/audio/audio_recorder.h"
+#include "components/copresence/test/audio_test_support.h"
+#include "media/base/audio_bus.h"
+//#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace copresence {
+
+class AudioPlayerStub final : public AudioPlayer {
+ public:
+  AudioPlayerStub() : is_playing_(false) {}
+  virtual ~AudioPlayerStub() {}
+
+  // AudioPlayer overrides:
+  void Initialize() override {}
+  void Play(const scoped_refptr<media::AudioBusRefCounted>&) override {
+    is_playing_ = true;
+  }
+  void Stop() override { is_playing_ = false; }
+  void Finalize() override { delete this; }
+  bool IsPlaying() override { return is_playing_; }
+
+ private:
+  bool is_playing_;
+  DISALLOW_COPY_AND_ASSIGN(AudioPlayerStub);
+};
+
+class AudioRecorderStub final : public AudioRecorder {
+ public:
+  AudioRecorderStub() : is_recording_(false) {}
+  virtual ~AudioRecorderStub() {}
+
+  // AudioRecorder overrides:
+  void Initialize(const RecordedSamplesCallback& cb) override { cb_ = cb; }
+  void Record() override { is_recording_ = true; }
+  void Stop() override { is_recording_ = false; }
+  void Finalize() override { delete this; }
+  bool IsRecording() override { return is_recording_; }
+
+  void TriggerDecodeRequest() {
+    if (!cb_.is_null())
+      cb_.Run(std::string(0x1337, 'a'));
+  }
+
+ private:
+  RecordedSamplesCallback cb_;
+  bool is_recording_;
+
+  DISALLOW_COPY_AND_ASSIGN(AudioRecorderStub);
+};
+
+class AudioManagerTest : public testing::Test {
+ public:
+  AudioManagerTest()
+      : audio_manager_(new AudioManagerImpl()),
+        audible_player_(new AudioPlayerStub),
+        inaudible_player_(new AudioPlayerStub),
+        recorder_(new AudioRecorderStub),
+        last_received_decode_type_(AUDIO_TYPE_UNKNOWN) {
+    audio_manager_->set_player_for_testing(AUDIBLE, audible_player_);
+    audio_manager_->set_player_for_testing(INAUDIBLE, inaudible_player_);
+    audio_manager_->set_recorder_for_testing(recorder_);
+    audio_manager_->Initialize(
+        base::Bind(&AudioManagerTest::DecodeSamples, base::Unretained(this)),
+        base::Bind(&AudioManagerTest::EncodeToken, base::Unretained(this)));
+  }
+  virtual ~AudioManagerTest() {}
+
+ protected:
+  void EncodeToken(const std::string& token,
+                   AudioType audible,
+                   const AudioManager::SamplesCallback& callback) {
+    callback.Run(
+        token, audible, CreateRandomAudioRefCounted(0x1337, 1, 0x7331));
+  }
+
+  void DecodeSamples(AudioType type, const std::string& /* samples */) {
+    last_received_decode_type_ = type;
+  }
+
+  base::MessageLoop message_loop_;
+  scoped_ptr<AudioManagerImpl> audio_manager_;
+
+  // These will be deleted by |audio_manager_|'s dtor calling finalize on them.
+  AudioPlayerStub* audible_player_;
+  AudioPlayerStub* inaudible_player_;
+  AudioRecorderStub* recorder_;
+
+  AudioType last_received_decode_type_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AudioManagerTest);
+};
+
+TEST_F(AudioManagerTest, Basic) {
+  audio_manager_->StartPlaying(AUDIBLE);
+  EXPECT_TRUE(audio_manager_->IsPlaying(AUDIBLE));
+  EXPECT_FALSE(audio_manager_->IsPlaying(INAUDIBLE));
+
+  audio_manager_->StopPlaying(AUDIBLE);
+  EXPECT_FALSE(audio_manager_->IsPlaying(AUDIBLE));
+
+  audio_manager_->StartRecording(INAUDIBLE);
+  EXPECT_TRUE(audio_manager_->IsRecording(INAUDIBLE));
+  EXPECT_FALSE(audio_manager_->IsRecording(AUDIBLE));
+
+  audio_manager_->StopRecording(INAUDIBLE);
+  EXPECT_FALSE(audio_manager_->IsRecording(INAUDIBLE));
+}
+
+TEST_F(AudioManagerTest, EncodeToken) {
+  audio_manager_->StartPlaying(AUDIBLE);
+  // No token yet, player shouldn't be playing.
+  EXPECT_FALSE(audible_player_->IsPlaying());
+
+  audio_manager_->SetToken(INAUDIBLE, "abcd");
+  // No *audible* token yet, so player still shouldn't be playing.
+  EXPECT_FALSE(audible_player_->IsPlaying());
+
+  audio_manager_->SetToken(AUDIBLE, "abcd");
+  EXPECT_TRUE(audible_player_->IsPlaying());
+}
+
+TEST_F(AudioManagerTest, Record) {
+  recorder_->TriggerDecodeRequest();
+  EXPECT_EQ(AUDIO_TYPE_UNKNOWN, last_received_decode_type_);
+
+  audio_manager_->StartRecording(AUDIBLE);
+  recorder_->TriggerDecodeRequest();
+  EXPECT_EQ(AUDIBLE, last_received_decode_type_);
+
+  audio_manager_->StartRecording(INAUDIBLE);
+  recorder_->TriggerDecodeRequest();
+  EXPECT_EQ(BOTH, last_received_decode_type_);
+
+  audio_manager_->StopRecording(AUDIBLE);
+  recorder_->TriggerDecodeRequest();
+  EXPECT_EQ(INAUDIBLE, last_received_decode_type_);
+}
+
+}  // namespace copresence