1 files changed, 128 insertions, 0 deletions
diff --git a/chromium/content/browser/speech/google_one_shot_remote_engine_unittest.cc b/chromium/content/browser/speech/google_one_shot_remote_engine_unittest.cc
new file mode 100644
index 00000000000..f7c65615e4e
--- /dev/null
+++ b/chromium/content/browser/speech/google_one_shot_remote_engine_unittest.cc
@@ -0,0 +1,128 @@
+// 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(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(ASCIIToUTF16("hello"), result().hypotheses[0].utterance);
+  EXPECT_EQ(0.9, result().hypotheses[0].confidence);
+  EXPECT_EQ(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