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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/translate/core/browser/translate_browser_metrics.h"
#include <memory>
#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::StatisticsRecorder;
namespace translate {
namespace {
class MetricsRecorder {
public:
explicit MetricsRecorder(const char* key) : key_(key) {
HistogramBase* histogram = StatisticsRecorder::FindHistogram(key_);
if (histogram) {
base_samples_ = histogram->SnapshotSamples();
}
}
MetricsRecorder(const MetricsRecorder&) = delete;
MetricsRecorder& operator=(const MetricsRecorder&) = delete;
void CheckTranslateHrefHintStatus(
int expected_auto_translated,
int expected_auto_translated_different_target_language,
int expected_ui_shown_not_auto_translated,
int expected_no_ui_shown_not_auto_translated) {
Snapshot();
EXPECT_EQ(
expected_auto_translated,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::HrefTranslateStatus::kAutoTranslated)));
EXPECT_EQ(expected_auto_translated_different_target_language,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::HrefTranslateStatus::
kAutoTranslatedDifferentTargetLanguage)));
EXPECT_EQ(expected_ui_shown_not_auto_translated,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::HrefTranslateStatus::
kUiShownNotAutoTranslated)));
EXPECT_EQ(expected_no_ui_shown_not_auto_translated,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::HrefTranslateStatus::
kNoUiShownNotAutoTranslated)));
}
void CheckMenuTranslationUnavailableReason(
int expected_kTranslate_disabled,
int expected_network_offline,
int expected_api_keys_missing,
int expected_unsupported_mimetype_page,
int expected_url_not_translatable,
int expected_target_lang_unknown,
int expected_not_allowed_by_policy,
int expected_source_lang_unknown) {
Snapshot();
EXPECT_EQ(expected_kTranslate_disabled,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kTranslateDisabled)));
EXPECT_EQ(expected_network_offline,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kNetworkOffline)));
EXPECT_EQ(expected_api_keys_missing,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kApiKeysMissing)));
EXPECT_EQ(expected_unsupported_mimetype_page,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kMIMETypeUnsupported)));
EXPECT_EQ(expected_url_not_translatable,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kURLNotTranslatable)));
EXPECT_EQ(expected_target_lang_unknown,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kTargetLangUnknown)));
EXPECT_EQ(expected_not_allowed_by_policy,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kNotAllowedByPolicy)));
EXPECT_EQ(expected_source_lang_unknown,
GetCountWithoutSnapshot(static_cast<int>(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kSourceLangUnknown)));
}
HistogramBase::Count32 GetTotalCount() {
Snapshot();
if (!samples_) {
return 0;
}
HistogramBase::Count32 count = samples_->TotalCount();
if (!base_samples_) {
return count;
}
return count - base_samples_->TotalCount();
}
HistogramBase::Count32 GetCount(HistogramBase::Sample32 value) {
Snapshot();
return GetCountWithoutSnapshot(value);
}
private:
void Snapshot() {
HistogramBase* histogram = StatisticsRecorder::FindHistogram(key_);
if (!histogram) {
return;
}
samples_ = histogram->SnapshotSamples();
}
HistogramBase::Count32 GetCountWithoutSnapshot(
HistogramBase::Sample32 value) {
if (!samples_) {
return 0;
}
HistogramBase::Count32 count = samples_->GetCount(value);
if (!base_samples_) {
return count;
}
return count - base_samples_->GetCount(value);
}
std::string key_;
std::unique_ptr<HistogramSamples> base_samples_;
std::unique_ptr<HistogramSamples> samples_;
};
TEST(TranslateBrowserMetricsTest, ReportMenuTranslationUnavailableReason) {
MetricsRecorder recorder("Translate.MenuTranslation.UnavailableReasons");
recorder.CheckMenuTranslationUnavailableReason(0, 0, 0, 0, 0, 0, 0, 0);
TranslateBrowserMetrics::ReportMenuTranslationUnavailableReason(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kTranslateDisabled);
recorder.CheckMenuTranslationUnavailableReason(1, 0, 0, 0, 0, 0, 0, 0);
TranslateBrowserMetrics::ReportMenuTranslationUnavailableReason(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kNetworkOffline);
recorder.CheckMenuTranslationUnavailableReason(1, 1, 0, 0, 0, 0, 0, 0);
TranslateBrowserMetrics::ReportMenuTranslationUnavailableReason(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kApiKeysMissing);
recorder.CheckMenuTranslationUnavailableReason(1, 1, 1, 0, 0, 0, 0, 0);
TranslateBrowserMetrics::ReportMenuTranslationUnavailableReason(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kMIMETypeUnsupported);
recorder.CheckMenuTranslationUnavailableReason(1, 1, 1, 1, 0, 0, 0, 0);
TranslateBrowserMetrics::ReportMenuTranslationUnavailableReason(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kURLNotTranslatable);
recorder.CheckMenuTranslationUnavailableReason(1, 1, 1, 1, 1, 0, 0, 0);
TranslateBrowserMetrics::ReportMenuTranslationUnavailableReason(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kTargetLangUnknown);
recorder.CheckMenuTranslationUnavailableReason(1, 1, 1, 1, 1, 1, 0, 0);
TranslateBrowserMetrics::ReportMenuTranslationUnavailableReason(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kNotAllowedByPolicy);
recorder.CheckMenuTranslationUnavailableReason(1, 1, 1, 1, 1, 1, 1, 0);
TranslateBrowserMetrics::ReportMenuTranslationUnavailableReason(
TranslateBrowserMetrics::MenuTranslationUnavailableReason::
kSourceLangUnknown);
recorder.CheckMenuTranslationUnavailableReason(1, 1, 1, 1, 1, 1, 1, 1);
}
TEST(TranslateBrowserMetricsTest, ReportTranslateHrefHintStatus) {
MetricsRecorder recorder("Translate.HrefHint.Status");
recorder.CheckTranslateHrefHintStatus(0, 0, 0, 0);
TranslateBrowserMetrics::ReportTranslateHrefHintStatus(
TranslateBrowserMetrics::HrefTranslateStatus::kAutoTranslated);
recorder.CheckTranslateHrefHintStatus(1, 0, 0, 0);
TranslateBrowserMetrics::ReportTranslateHrefHintStatus(
TranslateBrowserMetrics::HrefTranslateStatus::
kAutoTranslatedDifferentTargetLanguage);
recorder.CheckTranslateHrefHintStatus(1, 1, 0, 0);
TranslateBrowserMetrics::ReportTranslateHrefHintStatus(
TranslateBrowserMetrics::HrefTranslateStatus::kUiShownNotAutoTranslated);
recorder.CheckTranslateHrefHintStatus(1, 1, 1, 0);
TranslateBrowserMetrics::ReportTranslateHrefHintStatus(
TranslateBrowserMetrics::HrefTranslateStatus::
kNoUiShownNotAutoTranslated);
recorder.CheckTranslateHrefHintStatus(1, 1, 1, 1);
}
} // namespace
} // namespace translate
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