Move language detection to a component

chrome/common/translate/translate_common_metrics_unittest.cc

Index: chrome/common/translate/translate_common_metrics_unittest.cc
diff --git a/chrome/common/translate/translate_common_metrics_unittest.cc b/chrome/common/translate/translate_common_metrics_unittest.cc
deleted file mode 100644
index cd0753eb8b3ca956276ebf1dd1df4165c798c759..0000000000000000000000000000000000000000
--- a/chrome/common/translate/translate_common_metrics_unittest.cc
+++ /dev/null
@@ -1,300 +0,0 @@
-// Copyright 2013 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 "chrome/common/translate/translate_common_metrics.h"
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/metrics/histogram.h"
-#include "base/metrics/histogram_samples.h"
-#include "base/metrics/statistics_recorder.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "testing/platform_test.h"
-
-using base::HistogramBase;
-using base::HistogramSamples;
-using base::SampleCountIterator;
-using base::StatisticsRecorder;
-using base::TimeTicks;
-
-namespace {
-
-const int kTrue = 1;
-const int kFalse = 0;
-
-class MetricsRecorder {
- public:
-  explicit MetricsRecorder(const char* key) : key_(key) {
-    StatisticsRecorder::Initialize();
-
-    HistogramBase* histogram = StatisticsRecorder::FindHistogram(key_);
-    if (histogram)
-      base_samples_ = histogram->SnapshotSamples();
-  }
-
-  void CheckLanguage(TranslateCommonMetrics::MetricsNameIndex index,
-                     int expected_not_provided,
-                     int expected_valid,
-                     int expected_invalid) {
-    ASSERT_EQ(TranslateCommonMetrics::GetMetricsName(index), key_);
-
-    Snapshot();
-
-    EXPECT_EQ(expected_not_provided,
-              GetCountWithoutSnapshot(
-                  TranslateCommonMetrics::LANGUAGE_NOT_PROVIDED));
-    EXPECT_EQ(expected_valid,
-              GetCountWithoutSnapshot(
-                  TranslateCommonMetrics::LANGUAGE_VALID));
-    EXPECT_EQ(expected_invalid,
-              GetCountWithoutSnapshot(
-                  TranslateCommonMetrics::LANGUAGE_INVALID));
-  }
-
-  void CheckLanguageVerification(int expected_cld_disabled,
-                                 int expected_cld_only,
-                                 int expected_unknown,
-                                 int expected_cld_agree,
-                                 int expected_cld_disagree,
-                                 int expected_trust_cld,
-                                 int expected_cld_complement_sub_code) {
-    ASSERT_EQ(TranslateCommonMetrics::GetMetricsName(
-        TranslateCommonMetrics::UMA_LANGUAGE_VERIFICATION), key_);
-
-    Snapshot();
-
-    EXPECT_EQ(
-        expected_cld_disabled,
-        GetCountWithoutSnapshot(
-            TranslateCommonMetrics::LANGUAGE_VERIFICATION_CLD_DISABLED));
-    EXPECT_EQ(
-        expected_cld_only,
-        GetCountWithoutSnapshot(
-            TranslateCommonMetrics::LANGUAGE_VERIFICATION_CLD_ONLY));
-    EXPECT_EQ(
-        expected_unknown,
-        GetCountWithoutSnapshot(
-            TranslateCommonMetrics::LANGUAGE_VERIFICATION_UNKNOWN));
-    EXPECT_EQ(
-        expected_cld_agree,
-        GetCountWithoutSnapshot(
-            TranslateCommonMetrics::LANGUAGE_VERIFICATION_CLD_AGREE));
-    EXPECT_EQ(
-        expected_cld_disagree,
-        GetCountWithoutSnapshot(
-            TranslateCommonMetrics::LANGUAGE_VERIFICATION_CLD_DISAGREE));
-    EXPECT_EQ(
-        expected_trust_cld,
-        GetCountWithoutSnapshot(
-            TranslateCommonMetrics::LANGUAGE_VERIFICATION_TRUST_CLD));
-    EXPECT_EQ(
-        expected_cld_complement_sub_code,
-        GetCountWithoutSnapshot(
-            TranslateCommonMetrics::
-            LANGUAGE_VERIFICATION_CLD_COMPLEMENT_SUB_CODE));
-  }
-
-  void CheckScheme(int expected_http, int expected_https, int expected_others) {
-    ASSERT_EQ(TranslateCommonMetrics::GetMetricsName(
-        TranslateCommonMetrics::UMA_PAGE_SCHEME), key_);
-
-    Snapshot();
-
-    EXPECT_EQ(expected_http,
-              GetCountWithoutSnapshot(TranslateCommonMetrics::SCHEME_HTTP));
-    EXPECT_EQ(expected_https,
-              GetCountWithoutSnapshot(TranslateCommonMetrics::SCHEME_HTTPS));
-    EXPECT_EQ(expected_others,
-              GetCountWithoutSnapshot(TranslateCommonMetrics::SCHEME_OTHERS));
-  }
-
-  void CheckTotalCount(int count) {
-    Snapshot();
-    EXPECT_EQ(count, GetTotalCount());
-  }
-
-  void CheckValueInLogs(double value) {
-    Snapshot();
-    ASSERT_TRUE(samples_.get());
-    for (scoped_ptr<SampleCountIterator> i = samples_->Iterator();
-         !i->Done();
-         i->Next()) {
-      HistogramBase::Sample min;
-      HistogramBase::Sample max;
-      HistogramBase::Count count;
-      i->Get(&min, &max, &count);
-      if (min <= value && value <= max && count >= 1)
-        return;
-    }
-    EXPECT_FALSE(true);
-  }
-
-  HistogramBase::Count GetCount(HistogramBase::Sample value) {
-    Snapshot();
-    return GetCountWithoutSnapshot(value);
-  }
-
- private:
-  void Snapshot() {
-    HistogramBase* histogram = StatisticsRecorder::FindHistogram(key_);
-    if (!histogram)
-      return;
-    samples_ = histogram->SnapshotSamples();
-  }
-
-  HistogramBase::Count GetCountWithoutSnapshot(HistogramBase::Sample value) {
-    if (!samples_.get())
-      return 0;
-    HistogramBase::Count count = samples_->GetCount(value);
-    if (!base_samples_.get())
-      return count;
-    return count - base_samples_->GetCount(value);
-  }
-
-  HistogramBase::Count GetTotalCount() {
-    if (!samples_.get())
-      return 0;
-    HistogramBase::Count count = samples_->TotalCount();
-    if (!base_samples_.get())
-      return count;
-    return count - base_samples_->TotalCount();
-  }
-
-  std::string key_;
-  scoped_ptr<HistogramSamples> base_samples_;
-  scoped_ptr<HistogramSamples> samples_;
-
-  DISALLOW_COPY_AND_ASSIGN(MetricsRecorder);
-};
-
-}  // namespace
-
-TEST(TranslateCommonMetricsTest, ReportContentLanguage) {
-  MetricsRecorder recorder(TranslateCommonMetrics::GetMetricsName(
-      TranslateCommonMetrics::UMA_CONTENT_LANGUAGE));
-
-  recorder.CheckLanguage(TranslateCommonMetrics::UMA_CONTENT_LANGUAGE, 0, 0, 0);
-  TranslateCommonMetrics::ReportContentLanguage(std::string(), std::string());
-  recorder.CheckLanguage(TranslateCommonMetrics::UMA_CONTENT_LANGUAGE, 1, 0, 0);
-  TranslateCommonMetrics::ReportContentLanguage("ja_JP", "ja-JP");
-  recorder.CheckLanguage(TranslateCommonMetrics::UMA_CONTENT_LANGUAGE, 1, 0, 1);
-  TranslateCommonMetrics::ReportContentLanguage("en", "en");
-  recorder.CheckLanguage(TranslateCommonMetrics::UMA_CONTENT_LANGUAGE, 1, 1, 1);
-}
-
-TEST(TranslateCommonMetricsTest, ReportHtmlLang) {
-  MetricsRecorder recorder(TranslateCommonMetrics::GetMetricsName(
-      TranslateCommonMetrics::UMA_HTML_LANG));
-
-  recorder.CheckLanguage(TranslateCommonMetrics::UMA_HTML_LANG, 0, 0, 0);
-  TranslateCommonMetrics::ReportHtmlLang(std::string(), std::string());
-  recorder.CheckLanguage(TranslateCommonMetrics::UMA_HTML_LANG, 1, 0, 0);
-  TranslateCommonMetrics::ReportHtmlLang("ja_JP", "ja-JP");
-  recorder.CheckLanguage(TranslateCommonMetrics::UMA_HTML_LANG, 1, 0, 1);
-  TranslateCommonMetrics::ReportHtmlLang("en", "en");
-  recorder.CheckLanguage(TranslateCommonMetrics::UMA_HTML_LANG, 1, 1, 1);
-}
-
-TEST(TranslateCommonMetricsTest, ReportLanguageVerification) {
-  MetricsRecorder recorder(TranslateCommonMetrics::GetMetricsName(
-      TranslateCommonMetrics::UMA_LANGUAGE_VERIFICATION));
-
-  recorder.CheckLanguageVerification(0, 0, 0, 0, 0, 0, 0);
-  TranslateCommonMetrics::ReportLanguageVerification(
-      TranslateCommonMetrics::LANGUAGE_VERIFICATION_CLD_DISABLED);
-  recorder.CheckLanguageVerification(1, 0, 0, 0, 0, 0, 0);
-  TranslateCommonMetrics::ReportLanguageVerification(
-      TranslateCommonMetrics::LANGUAGE_VERIFICATION_CLD_ONLY);
-  recorder.CheckLanguageVerification(1, 1, 0, 0, 0, 0, 0);
-  TranslateCommonMetrics::ReportLanguageVerification(
-      TranslateCommonMetrics::LANGUAGE_VERIFICATION_UNKNOWN);
-  recorder.CheckLanguageVerification(1, 1, 1, 0, 0, 0, 0);
-  TranslateCommonMetrics::ReportLanguageVerification(
-      TranslateCommonMetrics::LANGUAGE_VERIFICATION_CLD_AGREE);
-  recorder.CheckLanguageVerification(1, 1, 1, 1, 0, 0, 0);
-  TranslateCommonMetrics::ReportLanguageVerification(
-      TranslateCommonMetrics::LANGUAGE_VERIFICATION_CLD_DISAGREE);
-  recorder.CheckLanguageVerification(1, 1, 1, 1, 1, 0, 0);
-  TranslateCommonMetrics::ReportLanguageVerification(
-      TranslateCommonMetrics::LANGUAGE_VERIFICATION_TRUST_CLD);
-  recorder.CheckLanguageVerification(1, 1, 1, 1, 1, 1, 0);
-  TranslateCommonMetrics::ReportLanguageVerification(
-      TranslateCommonMetrics::LANGUAGE_VERIFICATION_CLD_COMPLEMENT_SUB_CODE);
-  recorder.CheckLanguageVerification(1, 1, 1, 1, 1, 1, 1);
-}
-
-TEST(TranslateCommonMetricsTest, ReportTimeToBeReady) {
-  MetricsRecorder recorder(TranslateCommonMetrics::GetMetricsName(
-      TranslateCommonMetrics::UMA_TIME_TO_BE_READY));
-  recorder.CheckTotalCount(0);
-  TranslateCommonMetrics::ReportTimeToBeReady(3.14);
-  recorder.CheckValueInLogs(3.14);
-  recorder.CheckTotalCount(1);
-}
-
-TEST(TranslateCommonMetricsTest, ReportTimeToLoad) {
-  MetricsRecorder recorder(TranslateCommonMetrics::GetMetricsName(
-      TranslateCommonMetrics::UMA_TIME_TO_LOAD));
-  recorder.CheckTotalCount(0);
-  TranslateCommonMetrics::ReportTimeToLoad(573.0);
-  recorder.CheckValueInLogs(573.0);
-  recorder.CheckTotalCount(1);
-}
-
-TEST(TranslateCommonMetricsTest, ReportTimeToTranslate) {
-  MetricsRecorder recorder(TranslateCommonMetrics::GetMetricsName(
-      TranslateCommonMetrics::UMA_TIME_TO_TRANSLATE));
-  recorder.CheckTotalCount(0);
-  TranslateCommonMetrics::ReportTimeToTranslate(4649.0);
-  recorder.CheckValueInLogs(4649.0);
-  recorder.CheckTotalCount(1);
-}
-
-TEST(TranslateCommonMetricsTest, ReportUserActionDuration) {
-  MetricsRecorder recorder(TranslateCommonMetrics::GetMetricsName(
-      TranslateCommonMetrics::UMA_USER_ACTION_DURATION));
-  recorder.CheckTotalCount(0);
-  TimeTicks begin = TimeTicks::Now();
-  TimeTicks end = begin + base::TimeDelta::FromSeconds(3776);
-  TranslateCommonMetrics::ReportUserActionDuration(begin, end);
-  recorder.CheckValueInLogs(3776000.0);
-  recorder.CheckTotalCount(1);
-}
-
-TEST(TranslateCommonMetricsTest, ReportPageScheme) {
-  MetricsRecorder recorder(TranslateCommonMetrics::GetMetricsName(
-      TranslateCommonMetrics::UMA_PAGE_SCHEME));
-  recorder.CheckScheme(0, 0, 0);
-  TranslateCommonMetrics::ReportPageScheme("http");
-  recorder.CheckScheme(1, 0, 0);
-  TranslateCommonMetrics::ReportPageScheme("https");
-  recorder.CheckScheme(1, 1, 0);
-  TranslateCommonMetrics::ReportPageScheme("ftp");
-  recorder.CheckScheme(1, 1, 1);
-}
-
-TEST(TranslateCommonMetricsTest, ReportSimilarLanguageMatch) {
-  MetricsRecorder recorder(TranslateCommonMetrics::GetMetricsName(
-      TranslateCommonMetrics::UMA_SIMILAR_LANGUAGE_MATCH));
-  recorder.CheckTotalCount(0);
-  EXPECT_EQ(0, recorder.GetCount(kTrue));
-  EXPECT_EQ(0, recorder.GetCount(kFalse));
-  TranslateCommonMetrics::ReportSimilarLanguageMatch(true);
-  EXPECT_EQ(1, recorder.GetCount(kTrue));
-  EXPECT_EQ(0, recorder.GetCount(kFalse));
-  TranslateCommonMetrics::ReportSimilarLanguageMatch(false);
-  EXPECT_EQ(1, recorder.GetCount(kTrue));
-  EXPECT_EQ(1, recorder.GetCount(kFalse));
-}
-
-TEST(TranslateCommonMetricsTest, ReportLanguageDetectionTime) {
-  MetricsRecorder recorder(TranslateCommonMetrics::GetMetricsName(
-      TranslateCommonMetrics::UMA_LANGUAGE_DETECTION));
-  recorder.CheckTotalCount(0);
-  TimeTicks begin = TimeTicks::Now();
-  TimeTicks end = begin + base::TimeDelta::FromMicroseconds(9009);
-  TranslateCommonMetrics::ReportLanguageDetectionTime(begin, end);
-  recorder.CheckValueInLogs(9.009);
-  recorder.CheckTotalCount(1);
-}