App a Content API around SpeechRecognizer.

BUG=98716
Review URL: https://chromiumcodereview.appspot.com/9453023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@123328 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 424 deletions

diff --git a/content/browser/speech/speech_recognizer_unittest.cc b/content/browser/speech/speech_recognizer_unittest.cc
deleted file mode 100644
index 948d397..0000000
--- a/content/browser/speech/speech_recognizer_unittest.cc
+++ /dev/null
@@ -1,424 +0,0 @@
-// Copyright (c) 2012 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 <vector>
-
-#include "content/browser/browser_thread_impl.h"
-#include "content/browser/speech/speech_recognizer.h"
-#include "content/public/browser/speech_recognizer_delegate.h"
-#include "content/test/test_url_fetcher_factory.h"
-#include "media/audio/audio_manager.h"
-#include "media/audio/test_audio_input_controller_factory.h"
-#include "net/base/net_errors.h"
-#include "net/url_request/url_request_status.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using content::BrowserThread;
-using content::BrowserThreadImpl;
-using media::AudioInputController;
-using media::TestAudioInputController;
-using media::TestAudioInputControllerFactory;
-
-namespace speech_input {
-
-class SpeechRecognizerTest : public content::SpeechRecognizerDelegate,
-                             public testing::Test {
- public:
-  SpeechRecognizerTest()
-      : io_thread_(BrowserThread::IO, &message_loop_),
-        audio_manager_(AudioManager::Create()),
-        recording_complete_(false),
-        recognition_complete_(false),
-        result_received_(false),
-        audio_received_(false),
-        error_(content::SPEECH_INPUT_ERROR_NONE),
-        volume_(-1.0f) {
-    recognizer_ = new SpeechRecognizer(this, 1, std::string(), std::string(),
-                                       NULL, false, std::string(),
-                                       std::string());
-    recognizer_->SetAudioManagerForTesting(audio_manager_.get());
-    int audio_packet_length_bytes =
-        (SpeechRecognizer::kAudioSampleRate *
-         SpeechRecognizer::kAudioPacketIntervalMs *
-         ChannelLayoutToChannelCount(SpeechRecognizer::kChannelLayout) *
-         SpeechRecognizer::kNumBitsPerAudioSample) / (8 * 1000);
-    audio_packet_.resize(audio_packet_length_bytes);
-  }
-
-  // Overridden from content::SpeechRecognizerDelegate:
-  virtual void SetRecognitionResult(
-      int caller_id,
-      const content::SpeechInputResult& result) OVERRIDE {
-    result_received_ = true;
-  }
-
-  virtual void DidCompleteRecording(int caller_id) OVERRIDE {
-    recording_complete_ = true;
-  }
-
-  virtual void DidCompleteRecognition(int caller_id) OVERRIDE {
-    recognition_complete_ = true;
-  }
-
-  virtual void DidCompleteEnvironmentEstimation(int caller_id) OVERRIDE {
-  }
-
-  virtual void DidStartReceivingAudio(int caller_id) OVERRIDE {
-    audio_received_ = true;
-  }
-
-  virtual void DidStartReceivingSpeech(int caller_id) OVERRIDE {
-  }
-
-  virtual void DidStopReceivingSpeech(int caller_id) OVERRIDE {
-  }
-
-  virtual void OnRecognizerError(int caller_id,
-                                 content::SpeechInputError error) OVERRIDE {
-    error_ = error;
-  }
-
-  virtual void SetInputVolume(int caller_id, float volume,
-                              float noise_volume) OVERRIDE {
-    volume_ = volume;
-    noise_volume_ = noise_volume;
-  }
-
-  // testing::Test methods.
-  virtual void SetUp() OVERRIDE {
-    AudioInputController::set_factory_for_testing(
-        &audio_input_controller_factory_);
-  }
-
-  virtual void TearDown() OVERRIDE {
-    AudioInputController::set_factory_for_testing(NULL);
-  }
-
-  void FillPacketWithTestWaveform() {
-    // Fill the input with a simple pattern, a 125Hz sawtooth waveform.
-    for (size_t i = 0; i < audio_packet_.size(); ++i)
-      audio_packet_[i] = static_cast<uint8>(i);
-  }
-
-  void FillPacketWithNoise() {
-    int value = 0;
-    int factor = 175;
-    for (size_t i = 0; i < audio_packet_.size(); ++i) {
-      value += factor;
-      audio_packet_[i] = value % 100;
-    }
-  }
-
- protected:
-  MessageLoopForIO message_loop_;
-  BrowserThreadImpl io_thread_;
-  scoped_refptr<SpeechRecognizer> recognizer_;
-  scoped_ptr<AudioManager> audio_manager_;
-  bool recording_complete_;
-  bool recognition_complete_;
-  bool result_received_;
-  bool audio_received_;
-  content::SpeechInputError error_;
-  TestURLFetcherFactory url_fetcher_factory_;
-  TestAudioInputControllerFactory audio_input_controller_factory_;
-  std::vector<uint8> audio_packet_;
-  float volume_;
-  float noise_volume_;
-};
-
-TEST_F(SpeechRecognizerTest, StopNoData) {
-  // Check for callbacks when stopping record before any audio gets recorded.
-  EXPECT_TRUE(recognizer_->StartRecording());
-  recognizer_->CancelRecognition();
-  EXPECT_FALSE(recording_complete_);
-  EXPECT_FALSE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_FALSE(audio_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NONE, error_);
-}
-
-TEST_F(SpeechRecognizerTest, CancelNoData) {
-  // Check for callbacks when canceling recognition before any audio gets
-  // recorded.
-  EXPECT_TRUE(recognizer_->StartRecording());
-  recognizer_->StopRecording();
-  EXPECT_TRUE(recording_complete_);
-  EXPECT_TRUE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_FALSE(audio_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NONE, error_);
-}
-
-TEST_F(SpeechRecognizerTest, StopWithData) {
-  // Start recording, give some data and then stop. This should wait for the
-  // network callback to arrive before completion.
-  EXPECT_TRUE(recognizer_->StartRecording());
-  TestAudioInputController* controller =
-      audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-
-  // Try sending 5 chunks of mock audio data and verify that each of them
-  // resulted immediately in a packet sent out via the network. This verifies
-  // that we are streaming out encoded data as chunks without waiting for the
-  // full recording to complete.
-  const size_t kNumChunks = 5;
-  for (size_t i = 0; i < kNumChunks; ++i) {
-    controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                        audio_packet_.size());
-    MessageLoop::current()->RunAllPending();
-    TestURLFetcher* fetcher = url_fetcher_factory_.GetFetcherByID(0);
-    ASSERT_TRUE(fetcher);
-    EXPECT_EQ(i + 1, fetcher->upload_chunks().size());
-  }
-
-  recognizer_->StopRecording();
-  EXPECT_TRUE(audio_received_);
-  EXPECT_TRUE(recording_complete_);
-  EXPECT_FALSE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NONE, error_);
-
-  // Issue the network callback to complete the process.
-  TestURLFetcher* fetcher = url_fetcher_factory_.GetFetcherByID(0);
-  ASSERT_TRUE(fetcher);
-
-  fetcher->set_url(fetcher->GetOriginalURL());
-  net::URLRequestStatus status;
-  status.set_status(net::URLRequestStatus::SUCCESS);
-  fetcher->set_status(status);
-  fetcher->set_response_code(200);
-  fetcher->SetResponseString(
-      "{\"status\":0,\"hypotheses\":[{\"utterance\":\"123\"}]}");
-  fetcher->delegate()->OnURLFetchComplete(fetcher);
-
-  EXPECT_TRUE(recognition_complete_);
-  EXPECT_TRUE(result_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NONE, error_);
-}
-
-TEST_F(SpeechRecognizerTest, CancelWithData) {
-  // Start recording, give some data and then cancel. This should create
-  // a network request but give no callbacks.
-  EXPECT_TRUE(recognizer_->StartRecording());
-  TestAudioInputController* controller =
-      audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-  controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                      audio_packet_.size());
-  MessageLoop::current()->RunAllPending();
-  recognizer_->CancelRecognition();
-  ASSERT_TRUE(url_fetcher_factory_.GetFetcherByID(0));
-  EXPECT_TRUE(audio_received_);
-  EXPECT_FALSE(recording_complete_);
-  EXPECT_FALSE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NONE, error_);
-}
-
-TEST_F(SpeechRecognizerTest, ConnectionError) {
-  // Start recording, give some data and then stop. Issue the network callback
-  // with a connection error and verify that the recognizer bubbles the error up
-  EXPECT_TRUE(recognizer_->StartRecording());
-  TestAudioInputController* controller =
-      audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-  controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                      audio_packet_.size());
-  MessageLoop::current()->RunAllPending();
-  TestURLFetcher* fetcher = url_fetcher_factory_.GetFetcherByID(0);
-  ASSERT_TRUE(fetcher);
-
-  recognizer_->StopRecording();
-  EXPECT_TRUE(audio_received_);
-  EXPECT_TRUE(recording_complete_);
-  EXPECT_FALSE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NONE, error_);
-
-  // Issue the network callback to complete the process.
-  fetcher->set_url(fetcher->GetOriginalURL());
-  net::URLRequestStatus status;
-  status.set_status(net::URLRequestStatus::FAILED);
-  status.set_error(net::ERR_CONNECTION_REFUSED);
-  fetcher->set_status(status);
-  fetcher->set_response_code(0);
-  fetcher->SetResponseString("");
-  fetcher->delegate()->OnURLFetchComplete(fetcher);
-
-  EXPECT_FALSE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NETWORK, error_);
-}
-
-TEST_F(SpeechRecognizerTest, ServerError) {
-  // Start recording, give some data and then stop. Issue the network callback
-  // with a 500 error and verify that the recognizer bubbles the error up
-  EXPECT_TRUE(recognizer_->StartRecording());
-  TestAudioInputController* controller =
-      audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-  controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                      audio_packet_.size());
-  MessageLoop::current()->RunAllPending();
-  TestURLFetcher* fetcher = url_fetcher_factory_.GetFetcherByID(0);
-  ASSERT_TRUE(fetcher);
-
-  recognizer_->StopRecording();
-  EXPECT_TRUE(audio_received_);
-  EXPECT_TRUE(recording_complete_);
-  EXPECT_FALSE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NONE, error_);
-
-  // Issue the network callback to complete the process.
-  fetcher->set_url(fetcher->GetOriginalURL());
-  net::URLRequestStatus status;
-  status.set_status(net::URLRequestStatus::SUCCESS);
-  fetcher->set_status(status);
-  fetcher->set_response_code(500);
-  fetcher->SetResponseString("Internal Server Error");
-  fetcher->delegate()->OnURLFetchComplete(fetcher);
-
-  EXPECT_FALSE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NETWORK, error_);
-}
-
-TEST_F(SpeechRecognizerTest, AudioControllerErrorNoData) {
-  // Check if things tear down properly if AudioInputController threw an error.
-  EXPECT_TRUE(recognizer_->StartRecording());
-  TestAudioInputController* controller =
-      audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-  controller->event_handler()->OnError(controller, 0);
-  MessageLoop::current()->RunAllPending();
-  EXPECT_FALSE(audio_received_);
-  EXPECT_FALSE(recording_complete_);
-  EXPECT_FALSE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_AUDIO, error_);
-}
-
-TEST_F(SpeechRecognizerTest, AudioControllerErrorWithData) {
-  // Check if things tear down properly if AudioInputController threw an error
-  // after giving some audio data.
-  EXPECT_TRUE(recognizer_->StartRecording());
-  TestAudioInputController* controller =
-      audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-  controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                      audio_packet_.size());
-  controller->event_handler()->OnError(controller, 0);
-  MessageLoop::current()->RunAllPending();
-  ASSERT_TRUE(url_fetcher_factory_.GetFetcherByID(0));
-  EXPECT_TRUE(audio_received_);
-  EXPECT_FALSE(recording_complete_);
-  EXPECT_FALSE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_AUDIO, error_);
-}
-
-TEST_F(SpeechRecognizerTest, NoSpeechCallbackIssued) {
-  // Start recording and give a lot of packets with audio samples set to zero.
-  // This should trigger the no-speech detector and issue a callback.
-  EXPECT_TRUE(recognizer_->StartRecording());
-  TestAudioInputController* controller =
-      audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-  controller = audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-
-  int num_packets = (SpeechRecognizer::kNoSpeechTimeoutSec * 1000) /
-                     SpeechRecognizer::kAudioPacketIntervalMs;
-  // The vector is already filled with zero value samples on create.
-  for (int i = 0; i < num_packets; ++i) {
-    controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                        audio_packet_.size());
-  }
-  MessageLoop::current()->RunAllPending();
-  EXPECT_TRUE(audio_received_);
-  EXPECT_FALSE(recording_complete_);
-  EXPECT_FALSE(recognition_complete_);
-  EXPECT_FALSE(result_received_);
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NO_SPEECH, error_);
-}
-
-TEST_F(SpeechRecognizerTest, NoSpeechCallbackNotIssued) {
-  // Start recording and give a lot of packets with audio samples set to zero
-  // and then some more with reasonably loud audio samples. This should be
-  // treated as normal speech input and the no-speech detector should not get
-  // triggered.
-  EXPECT_TRUE(recognizer_->StartRecording());
-  TestAudioInputController* controller =
-      audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-  controller = audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-
-  int num_packets = (SpeechRecognizer::kNoSpeechTimeoutSec * 1000) /
-                     SpeechRecognizer::kAudioPacketIntervalMs;
-
-  // The vector is already filled with zero value samples on create.
-  for (int i = 0; i < num_packets / 2; ++i) {
-    controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                        audio_packet_.size());
-  }
-
-  FillPacketWithTestWaveform();
-  for (int i = 0; i < num_packets / 2; ++i) {
-    controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                        audio_packet_.size());
-  }
-
-  MessageLoop::current()->RunAllPending();
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NONE, error_);
-  EXPECT_TRUE(audio_received_);
-  EXPECT_FALSE(recording_complete_);
-  EXPECT_FALSE(recognition_complete_);
-  recognizer_->CancelRecognition();
-}
-
-TEST_F(SpeechRecognizerTest, SetInputVolumeCallback) {
-  // Start recording and give a lot of packets with audio samples set to zero
-  // and then some more with reasonably loud audio samples. Check that we don't
-  // get the callback during estimation phase, then get zero for the silence
-  // samples and proper volume for the loud audio.
-  EXPECT_TRUE(recognizer_->StartRecording());
-  TestAudioInputController* controller =
-      audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-  controller = audio_input_controller_factory_.controller();
-  ASSERT_TRUE(controller);
-
-  // Feed some samples to begin with for the endpointer to do noise estimation.
-  int num_packets = SpeechRecognizer::kEndpointerEstimationTimeMs /
-                    SpeechRecognizer::kAudioPacketIntervalMs;
-  FillPacketWithNoise();
-  for (int i = 0; i < num_packets; ++i) {
-    controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                        audio_packet_.size());
-  }
-  MessageLoop::current()->RunAllPending();
-  EXPECT_EQ(-1.0f, volume_);  // No audio volume set yet.
-
-  // The vector is already filled with zero value samples on create.
-  controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                      audio_packet_.size());
-  MessageLoop::current()->RunAllPending();
-  EXPECT_FLOAT_EQ(0.74939233f, volume_);
-
-  FillPacketWithTestWaveform();
-  controller->event_handler()->OnData(controller, &audio_packet_[0],
-                                      audio_packet_.size());
-  MessageLoop::current()->RunAllPending();
-  EXPECT_FLOAT_EQ(0.89926866f, volume_);
-  EXPECT_FLOAT_EQ(0.75071919f, noise_volume_);
-
-  EXPECT_EQ(content::SPEECH_INPUT_ERROR_NONE, error_);
-  EXPECT_FALSE(recording_complete_);
-  EXPECT_FALSE(recognition_complete_);
-  recognizer_->CancelRecognition();
-}
-
-}  // namespace speech_input