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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/on_device_translation/translation_metrics.h"
#include "base/logging.h"
#include "base/test/gtest_util.h"
#include "base/test/metrics/histogram_tester.h"
#include "chrome/browser/on_device_translation/language_pack_util.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace on_device_translation {
namespace {
class TranslationMetricsTest : public ::testing::Test {
public:
static constexpr int kLanguageCodeEn =
static_cast<int>(SupportedLanguage::kEn);
static constexpr int kLanguageCodeEs =
static_cast<int>(SupportedLanguage::kEs);
};
TEST_F(TranslationMetricsTest, RecordLanguageUma) {
const char kTestHistogramName[] =
"Translate.OnDeviceTranslation.Create.SourceLanguage";
{
base::HistogramTester histogram_tester;
RecordLanguageUma(kTestHistogramName, "en");
histogram_tester.ExpectUniqueSample(kTestHistogramName, kLanguageCodeEn, 1);
}
{
// Test recording an unknown language code
base::HistogramTester histogram_tester;
RecordLanguageUma(kTestHistogramName, "xxxxx");
histogram_tester.ExpectTotalCount(kTestHistogramName, 0);
}
}
TEST_F(TranslationMetricsTest, RecordLanguagePairUma) {
const char kTestHistogramName[] =
"Translate.OnDeviceTranslation.Create.LangaugePair";
{
base::HistogramTester histogram_tester;
RecordLanguagePairUma(kTestHistogramName, "en", "es");
histogram_tester.ExpectUniqueSample(
kTestHistogramName, kLanguageCodeEn * 1000 + kLanguageCodeEs, 1);
}
{
// Test recording an unknown language code as source language
base::HistogramTester histogram_tester;
RecordLanguagePairUma(kTestHistogramName, "xxxxx", "en");
histogram_tester.ExpectTotalCount(kTestHistogramName, 0);
}
{
// Test recording an unknown language code as target language
base::HistogramTester histogram_tester;
RecordLanguagePairUma(kTestHistogramName, "en", "xxxxx");
histogram_tester.ExpectTotalCount(kTestHistogramName, 0);
}
{
// Test recording an unknown language code as source and target language
base::HistogramTester histogram_tester;
RecordLanguagePairUma(kTestHistogramName, "xxxxx", "xxxxx");
histogram_tester.ExpectTotalCount(kTestHistogramName, 0);
}
}
TEST_F(TranslationMetricsTest,
RecordLanguageTranslationAPICallForLanguagePair) {
const char kTestSourceLanguageHistogramName[] =
"Translate.OnDeviceTranslation.Create.SourceLanguage";
const char kTestTargetLanguageHistogramName[] =
"Translate.OnDeviceTranslation.Create.TargetLanguage";
const char kTestLanguagePairHistogramName[] =
"Translate.OnDeviceTranslation.Create.LanguagePair";
{
base::HistogramTester histogram_tester;
RecordTranslationAPICallForLanguagePair("Create", "en", "es");
histogram_tester.ExpectUniqueSample(kTestSourceLanguageHistogramName,
kLanguageCodeEn, 1);
histogram_tester.ExpectUniqueSample(kTestTargetLanguageHistogramName,
kLanguageCodeEs, 1);
histogram_tester.ExpectUniqueSample(
kTestLanguagePairHistogramName,
kLanguageCodeEn * 1000 + kLanguageCodeEs, 1);
}
{
// Test recording an unknown language code as source language
base::HistogramTester histogram_tester;
RecordTranslationAPICallForLanguagePair("Create", "xxxxx", "es");
histogram_tester.ExpectTotalCount(kTestSourceLanguageHistogramName, 0);
histogram_tester.ExpectTotalCount(kTestTargetLanguageHistogramName, 0);
histogram_tester.ExpectTotalCount(kTestLanguagePairHistogramName, 0);
}
{
// Test recording an unknown language code as target language
base::HistogramTester histogram_tester;
RecordTranslationAPICallForLanguagePair("Create", "en", "xxxxx");
histogram_tester.ExpectTotalCount(kTestSourceLanguageHistogramName, 0);
histogram_tester.ExpectTotalCount(kTestTargetLanguageHistogramName, 0);
histogram_tester.ExpectTotalCount(kTestLanguagePairHistogramName, 0);
}
{
// Test recording an unknown language code as source and target language
base::HistogramTester histogram_tester;
RecordTranslationAPICallForLanguagePair("Create", "xxxx", "xxxxx");
histogram_tester.ExpectTotalCount(kTestSourceLanguageHistogramName, 0);
histogram_tester.ExpectTotalCount(kTestTargetLanguageHistogramName, 0);
histogram_tester.ExpectTotalCount(kTestLanguagePairHistogramName, 0);
}
}
TEST_F(TranslationMetricsTest, RecordTranslationCharacterCount) {
base::HistogramTester histogram_tester;
RecordTranslationCharacterCount("en", "es", 100);
histogram_tester.ExpectUniqueSample(
"Translate.OnDeviceTranslation.CharacterCount", 100, 1);
histogram_tester.ExpectUniqueSample(
"Translate.OnDeviceTranslation.SourceLanguage.en.CharacterCount", 100, 1);
histogram_tester.ExpectUniqueSample(
"Translate.OnDeviceTranslation.TargetLanguage.es.CharacterCount", 100, 1);
}
} // namespace
} // namespace on_device_translation
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