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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "components/language/ios/browser/ios_language_detection_tab_helper.h"
#import "base/files/file_util.h"
#import "base/metrics/metrics_hashes.h"
#import "base/path_service.h"
#import "base/run_loop.h"
#import "base/test/metrics/histogram_tester.h"
#import "base/test/scoped_feature_list.h"
#import "base/test/task_environment.h"
#import "base/values.h"
#import "components/language/ios/browser/language_detection_java_script_feature.h"
#import "components/language_detection/core/language_detection_model.h"
#import "components/prefs/pref_registry_simple.h"
#import "components/prefs/testing_pref_service.h"
#import "components/translate/core/browser/translate_pref_names.h"
#import "components/translate/core/common/translate_util.h"
#import "components/translate/core/language_detection/language_detection_model.h"
#import "ios/web/public/test/fakes/fake_web_frames_manager.h"
#import "ios/web/public/test/fakes/fake_web_state.h"
#import "testing/platform_test.h"
namespace language {
class IOSLanguageDetectionTabHelperTest : public PlatformTest {
public:
IOSLanguageDetectionTabHelperTest() = default;
void SetUp() override {
PlatformTest::SetUp();
scoped_feature_list_.InitWithFeatures(
{translate::kTFLiteLanguageDetectionEnabled}, {});
auto frames_manager = std::make_unique<web::FakeWebFramesManager>();
web::ContentWorld content_world =
language::LanguageDetectionJavaScriptFeature::GetInstance()
->GetSupportedContentWorld();
web_state_.SetWebFramesManager(content_world, std::move(frames_manager));
pref_service_.registry()->RegisterBooleanPref(
translate::prefs::kOfferTranslateEnabled, true);
language::IOSLanguageDetectionTabHelper::CreateForWebState(
&web_state_, /*url_language_histogram=*/nullptr, &model_,
&pref_service_);
}
protected:
base::test::TaskEnvironment task_environment_;
base::test::ScopedFeatureList scoped_feature_list_;
base::HistogramTester histogram_tester_;
TestingPrefServiceSimple pref_service_;
translate::LanguageDetectionModel model_{
std::make_unique<language_detection::LanguageDetectionModel>()};
web::FakeWebState web_state_;
};
base::File GetValidModelFile() {
base::FilePath source_root_dir;
base::PathService::Get(base::DIR_SRC_TEST_DATA_ROOT, &source_root_dir);
base::FilePath model_file_path = source_root_dir.AppendASCII("components")
.AppendASCII("test")
.AppendASCII("data")
.AppendASCII("translate")
.AppendASCII("valid_model.tflite");
base::File file(model_file_path,
(base::File::FLAG_OPEN | base::File::FLAG_READ));
return file;
}
TEST_F(IOSLanguageDetectionTabHelperTest,
TFLiteLanguageDetectionDurationRecorded) {
language::IOSLanguageDetectionTabHelper* language_detection_tab_helper =
language::IOSLanguageDetectionTabHelper::FromWebState(&web_state_);
histogram_tester_.ExpectTotalCount(
"Translate.LanguageDetection.TFLiteModelEvaluationDuration", 0);
base::RunLoop run_loop;
model_.UpdateWithFileAsync(GetValidModelFile(), run_loop.QuitClosure());
run_loop.Run();
EXPECT_TRUE(model_.IsAvailable());
base::Value text_content("hello world");
language_detection_tab_helper->OnTextRetrieved(true, "en", "en", GURL(""),
&text_content);
histogram_tester_.ExpectTotalCount(
"Translate.LanguageDetection.TFLiteModelEvaluationDuration", 1);
}
} // namespace language
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