| // 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 "base/message_loop/message_loop.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "content/browser/speech/audio_buffer.h" |
| #include "content/browser/speech/google_one_shot_remote_engine.h" |
| #include "content/public/common/speech_recognition_error.h" |
| #include "content/public/common/speech_recognition_result.h" |
| #include "net/url_request/test_url_fetcher_factory.h" |
| #include "net/url_request/url_request_context_getter.h" |
| #include "net/url_request/url_request_status.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace content { |
| |
| class GoogleOneShotRemoteEngineTest : public SpeechRecognitionEngineDelegate, |
| public testing::Test { |
| public: |
| GoogleOneShotRemoteEngineTest() |
| : error_(SPEECH_RECOGNITION_ERROR_NONE) {} |
| |
| // Creates a speech recognition request and invokes its URL fetcher delegate |
| // with the given test data. |
| void CreateAndTestRequest(bool success, const std::string& http_response); |
| |
| // SpeechRecognitionRequestDelegate methods. |
| virtual void OnSpeechRecognitionEngineResults( |
| const SpeechRecognitionResults& results) OVERRIDE { |
| results_ = results; |
| } |
| |
| virtual void OnSpeechRecognitionEngineError( |
| const SpeechRecognitionError& error) OVERRIDE { |
| error_ = error.code; |
| } |
| |
| // Accessor for the only result item. |
| const SpeechRecognitionResult& result() const { |
| DCHECK_EQ(results_.size(), 1U); |
| return results_[0]; |
| } |
| |
| protected: |
| base::MessageLoop message_loop_; |
| net::TestURLFetcherFactory url_fetcher_factory_; |
| SpeechRecognitionErrorCode error_; |
| SpeechRecognitionResults results_; |
| }; |
| |
| void GoogleOneShotRemoteEngineTest::CreateAndTestRequest( |
| bool success, const std::string& http_response) { |
| GoogleOneShotRemoteEngine client(NULL); |
| unsigned char dummy_audio_buffer_data[2] = {'\0', '\0'}; |
| scoped_refptr<AudioChunk> dummy_audio_chunk( |
| new AudioChunk(&dummy_audio_buffer_data[0], |
| sizeof(dummy_audio_buffer_data), |
| 2 /* bytes per sample */)); |
| client.set_delegate(this); |
| client.StartRecognition(); |
| client.TakeAudioChunk(*dummy_audio_chunk.get()); |
| client.AudioChunksEnded(); |
| net::TestURLFetcher* fetcher = url_fetcher_factory_.GetFetcherByID(0); |
| ASSERT_TRUE(fetcher); |
| |
| fetcher->set_url(fetcher->GetOriginalURL()); |
| net::URLRequestStatus status; |
| status.set_status(success ? net::URLRequestStatus::SUCCESS : |
| net::URLRequestStatus::FAILED); |
| fetcher->set_status(status); |
| fetcher->set_response_code(success ? 200 : 500); |
| fetcher->SetResponseString(http_response); |
| |
| fetcher->delegate()->OnURLFetchComplete(fetcher); |
| // Parsed response will be available in result(). |
| } |
| |
| TEST_F(GoogleOneShotRemoteEngineTest, BasicTest) { |
| // Normal success case with one result. |
| CreateAndTestRequest(true, |
| "{\"status\":0,\"hypotheses\":" |
| "[{\"utterance\":\"123456\",\"confidence\":0.9}]}"); |
| EXPECT_EQ(error_, SPEECH_RECOGNITION_ERROR_NONE); |
| EXPECT_EQ(1U, result().hypotheses.size()); |
| EXPECT_EQ(base::ASCIIToUTF16("123456"), result().hypotheses[0].utterance); |
| EXPECT_EQ(0.9, result().hypotheses[0].confidence); |
| |
| // Normal success case with multiple results. |
| CreateAndTestRequest(true, |
| "{\"status\":0,\"hypotheses\":[" |
| "{\"utterance\":\"hello\",\"confidence\":0.9}," |
| "{\"utterance\":\"123456\",\"confidence\":0.5}]}"); |
| EXPECT_EQ(error_, SPEECH_RECOGNITION_ERROR_NONE); |
| EXPECT_EQ(2u, result().hypotheses.size()); |
| EXPECT_EQ(base::ASCIIToUTF16("hello"), result().hypotheses[0].utterance); |
| EXPECT_EQ(0.9, result().hypotheses[0].confidence); |
| EXPECT_EQ(base::ASCIIToUTF16("123456"), result().hypotheses[1].utterance); |
| EXPECT_EQ(0.5, result().hypotheses[1].confidence); |
| |
| // Zero results. |
| CreateAndTestRequest(true, "{\"status\":0,\"hypotheses\":[]}"); |
| EXPECT_EQ(error_, SPEECH_RECOGNITION_ERROR_NONE); |
| EXPECT_EQ(0U, result().hypotheses.size()); |
| |
| // Http failure case. |
| CreateAndTestRequest(false, std::string()); |
| EXPECT_EQ(error_, SPEECH_RECOGNITION_ERROR_NETWORK); |
| EXPECT_EQ(0U, result().hypotheses.size()); |
| |
| // Invalid status case. |
| CreateAndTestRequest(true, "{\"status\":\"invalid\",\"hypotheses\":[]}"); |
| EXPECT_EQ(error_, SPEECH_RECOGNITION_ERROR_NETWORK); |
| EXPECT_EQ(0U, result().hypotheses.size()); |
| |
| // Server-side error case. |
| CreateAndTestRequest(true, "{\"status\":1,\"hypotheses\":[]}"); |
| EXPECT_EQ(error_, SPEECH_RECOGNITION_ERROR_NETWORK); |
| EXPECT_EQ(0U, result().hypotheses.size()); |
| |
| // Malformed JSON case. |
| CreateAndTestRequest(true, "{\"status\":0,\"hypotheses\":" |
| "[{\"unknownkey\":\"hello\"}]}"); |
| EXPECT_EQ(error_, SPEECH_RECOGNITION_ERROR_NETWORK); |
| EXPECT_EQ(0U, result().hypotheses.size()); |
| } |
| |
| } // namespace content |