components/translate/core/browser/translate_browser_metrics_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/translate/core/browser/translate_browser_metrics.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/metrics/histogram.h"
  10 #include "base/metrics/histogram_samples.h"
  11 #include "base/metrics/statistics_recorder.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13 #include "testing/platform_test.h"
  14
  15 using base::HistogramBase;
  16 using base::HistogramSamples;
  17 using base::StatisticsRecorder;
  18
  19 namespace {
  20
  21 class MetricsRecorder {
  22  public:
  23   explicit MetricsRecorder(const char* key) : key_(key) {
  24     StatisticsRecorder::Initialize();
  25
  26     HistogramBase* histogram = StatisticsRecorder::FindHistogram(key_);
  27     if (histogram)
  28       base_samples_ = histogram->SnapshotSamples();
  29   }
  30
  31   void CheckInitiationStatus(int expected_disabled_by_prefs,
  32                              int expected_disabled_by_switch,
  33                              int expected_disabled_by_config,
  34                              int expected_disabled_by_build,
  35                              int expected_language_is_not_supported,
  36                              int expected_mime_type_is_not_supported,
  37                              int expected_url_is_not_supported,
  38                              int expected_similar_languages,
  39                              int expected_accept_languages,
  40                              int expected_auto_by_config,
  41                              int expected_auto_by_link,
  42                              int expected_show_infobar) {
  43     Snapshot();
  44
  45     EXPECT_EQ(expected_disabled_by_prefs,
  46               GetCountWithoutSnapshot(translate::TranslateBrowserMetrics::
  47                                           INITIATION_STATUS_DISABLED_BY_PREFS));
  48     EXPECT_EQ(
  49         expected_disabled_by_switch,
  50         GetCountWithoutSnapshot(translate::TranslateBrowserMetrics::
  51                                     INITIATION_STATUS_DISABLED_BY_SWITCH));
  52     EXPECT_EQ(
  53         expected_disabled_by_config,
  54         GetCountWithoutSnapshot(translate::TranslateBrowserMetrics::
  55                                     INITIATION_STATUS_DISABLED_BY_CONFIG));
  56     EXPECT_EQ(
  57         expected_disabled_by_build,
  58         GetCountWithoutSnapshot(translate::TranslateBrowserMetrics::
  59                                     INITIATION_STATUS_DISABLED_BY_KEY));
  60     EXPECT_EQ(expected_language_is_not_supported,
  61               GetCountWithoutSnapshot(
  62                   translate::TranslateBrowserMetrics::
  63                       INITIATION_STATUS_LANGUAGE_IS_NOT_SUPPORTED));
  64     EXPECT_EQ(expected_mime_type_is_not_supported,
  65               GetCountWithoutSnapshot(
  66                   translate::TranslateBrowserMetrics::
  67                       INITIATION_STATUS_MIME_TYPE_IS_NOT_SUPPORTED));
  68     EXPECT_EQ(
  69         expected_url_is_not_supported,
  70         GetCountWithoutSnapshot(translate::TranslateBrowserMetrics::
  71                                     INITIATION_STATUS_URL_IS_NOT_SUPPORTED));
  72     EXPECT_EQ(expected_similar_languages,
  73               GetCountWithoutSnapshot(translate::TranslateBrowserMetrics::
  74                                           INITIATION_STATUS_SIMILAR_LANGUAGES));
  75     EXPECT_EQ(expected_accept_languages,
  76               GetCountWithoutSnapshot(translate::TranslateBrowserMetrics::
  77                                           INITIATION_STATUS_ACCEPT_LANGUAGES));
  78     EXPECT_EQ(expected_auto_by_config,
  79               GetCountWithoutSnapshot(translate::TranslateBrowserMetrics::
  80                                           INITIATION_STATUS_AUTO_BY_CONFIG));
  81     EXPECT_EQ(expected_auto_by_link,
  82               GetCountWithoutSnapshot(translate::TranslateBrowserMetrics::
  83                                           INITIATION_STATUS_AUTO_BY_LINK));
  84     EXPECT_EQ(expected_show_infobar,
  85               GetCountWithoutSnapshot(translate::TranslateBrowserMetrics::
  86                                           INITIATION_STATUS_SHOW_INFOBAR));
  87   }
  88
  89   HistogramBase::Count GetTotalCount() {
  90     Snapshot();
  91     if (!samples_.get())
  92       return 0;
  93     HistogramBase::Count count = samples_->TotalCount();
  94     if (!base_samples_.get())
  95       return count;
  96     return count - base_samples_->TotalCount();
  97   }
  98
  99   HistogramBase::Count GetCount(HistogramBase::Sample value) {
 100     Snapshot();
 101     return GetCountWithoutSnapshot(value);
 102   }
 103
 104  private:
 105   void Snapshot() {
 106     HistogramBase* histogram = StatisticsRecorder::FindHistogram(key_);
 107     if (!histogram)
 108       return;
 109     samples_ = histogram->SnapshotSamples();
 110   }
 111
 112   HistogramBase::Count GetCountWithoutSnapshot(HistogramBase::Sample value) {
 113     if (!samples_.get())
 114       return 0;
 115     HistogramBase::Count count = samples_->GetCount(value);
 116     if (!base_samples_.get())
 117       return count;
 118     return count - base_samples_->GetCount(value);
 119   }
 120
 121   std::string key_;
 122   scoped_ptr<HistogramSamples> base_samples_;
 123   scoped_ptr<HistogramSamples> samples_;
 124
 125   DISALLOW_COPY_AND_ASSIGN(MetricsRecorder);
 126 };
 127
 128 }  // namespace
 129
 130 TEST(TranslateBrowserMetricsTest, ReportInitiationStatus) {
 131   MetricsRecorder recorder(translate::TranslateBrowserMetrics::GetMetricsName(
 132       translate::TranslateBrowserMetrics::UMA_INITIATION_STATUS));
 133
 134   recorder.CheckInitiationStatus(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
 135   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 136       translate::TranslateBrowserMetrics::INITIATION_STATUS_DISABLED_BY_PREFS);
 137   recorder.CheckInitiationStatus(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
 138   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 139       translate::TranslateBrowserMetrics::INITIATION_STATUS_DISABLED_BY_SWITCH);
 140   recorder.CheckInitiationStatus(1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
 141   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 142       translate::TranslateBrowserMetrics::INITIATION_STATUS_DISABLED_BY_CONFIG);
 143   recorder.CheckInitiationStatus(1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0);
 144   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 145       translate::TranslateBrowserMetrics::INITIATION_STATUS_DISABLED_BY_KEY);
 146   recorder.CheckInitiationStatus(1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0);
 147   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 148       translate::TranslateBrowserMetrics::
 149           INITIATION_STATUS_LANGUAGE_IS_NOT_SUPPORTED);
 150   recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0);
 151   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 152       translate::TranslateBrowserMetrics::
 153           INITIATION_STATUS_MIME_TYPE_IS_NOT_SUPPORTED);
 154   recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0);
 155   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 156       translate::TranslateBrowserMetrics::
 157           INITIATION_STATUS_URL_IS_NOT_SUPPORTED);
 158   recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0);
 159   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 160       translate::TranslateBrowserMetrics::INITIATION_STATUS_SIMILAR_LANGUAGES);
 161   recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0);
 162   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 163       translate::TranslateBrowserMetrics::INITIATION_STATUS_ACCEPT_LANGUAGES);
 164   recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0);
 165   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 166       translate::TranslateBrowserMetrics::INITIATION_STATUS_AUTO_BY_CONFIG);
 167   recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0);
 168   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 169       translate::TranslateBrowserMetrics::INITIATION_STATUS_AUTO_BY_LINK);
 170   recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0);
 171   translate::TranslateBrowserMetrics::ReportInitiationStatus(
 172       translate::TranslateBrowserMetrics::INITIATION_STATUS_SHOW_INFOBAR);
 173   recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
 174 }
 175
 176 TEST(TranslateBrowserMetricsTest, ReportLanguageDetectionError) {
 177   MetricsRecorder recorder(translate::TranslateBrowserMetrics::GetMetricsName(
 178       translate::TranslateBrowserMetrics::UMA_LANGUAGE_DETECTION_ERROR));
 179   EXPECT_EQ(0, recorder.GetTotalCount());
 180   translate::TranslateBrowserMetrics::ReportLanguageDetectionError();
 181   EXPECT_EQ(1, recorder.GetTotalCount());
 182
 183 }
 184
 185
 186 TEST(TranslateBrowserMetricsTest, ReportedLocalesOnDisabledByPrefs) {
 187   const int ENGLISH = 25966;
 188
 189   MetricsRecorder recorder(translate::TranslateBrowserMetrics::GetMetricsName(
 190       translate::TranslateBrowserMetrics::UMA_LOCALES_ON_DISABLED_BY_PREFS));
 191   EXPECT_EQ(0, recorder.GetTotalCount());
 192   translate::TranslateBrowserMetrics::ReportLocalesOnDisabledByPrefs("en");
 193   EXPECT_EQ(1, recorder.GetCount(ENGLISH));
 194 }
 195
 196 TEST(TranslateBrowserMetricsTest, ReportedUndisplayableLanguage) {
 197   const int ENGLISH = 25966;
 198
 199   MetricsRecorder recorder(translate::TranslateBrowserMetrics::GetMetricsName(
 200       translate::TranslateBrowserMetrics::UMA_UNDISPLAYABLE_LANGUAGE));
 201   EXPECT_EQ(0, recorder.GetTotalCount());
 202   translate::TranslateBrowserMetrics::ReportUndisplayableLanguage("en");
 203   EXPECT_EQ(1, recorder.GetCount(ENGLISH));
 204 }
 205
 206 TEST(TranslateBrowserMetricsTest, ReportedUnsupportedLanguageAtInitiation) {
 207   const int ENGLISH = 25966;
 208
 209   MetricsRecorder recorder(translate::TranslateBrowserMetrics::GetMetricsName(
 210       translate::TranslateBrowserMetrics::
 211           UMA_UNSUPPORTED_LANGUAGE_AT_INITIATION));
 212   EXPECT_EQ(0, recorder.GetTotalCount());
 213   translate::TranslateBrowserMetrics::ReportUnsupportedLanguageAtInitiation(
 214       "en");
 215   EXPECT_EQ(1, recorder.GetCount(ENGLISH));
 216 }