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// Copyright 2020 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 "chromeos/services/machine_learning/cpp/ash/handwriting_model_loader.h"
#include <string>
#include "ash/constants/ash_switches.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/run_loop.h"
#include "base/test/scoped_command_line.h"
#include "base/test/task_environment.h"
#include "chromeos/dbus/dlcservice/fake_dlcservice_client.h"
#include "chromeos/services/machine_learning/public/cpp/fake_service_connection.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/cros_system_api/dbus/service_constants.h"
namespace ash {
namespace machine_learning {
using ::base::test::ScopedCommandLine;
using ::base::test::TaskEnvironment;
using ::chromeos::machine_learning::mojom::LoadHandwritingModelResult;
constexpr char kLibHandwritingDlcId[] = "libhandwriting";
class HandwritingModelLoaderTest : public testing::Test {
protected:
void SetUp() override {
chromeos::machine_learning::ServiceConnection::
UseFakeServiceConnectionForTesting(&fake_service_connection_);
chromeos::machine_learning::ServiceConnection::GetInstance()->Initialize();
result_ = LoadHandwritingModelResult::DEPRECATED_MODEL_SPEC_ERROR;
language_ = "en";
}
// Callback that called when loader_->Load() is over to save the returned
// result.
void OnHandwritingModelLoaderComplete(
const LoadHandwritingModelResult result) {
result_ = result;
}
// Runs loader_->Load() and check the returned result as expected.
void ExpectLoadHandwritingModelResult(
const LoadHandwritingModelResult expected_result) {
LoadHandwritingModelFromRootfsOrDlc(
chromeos::machine_learning::mojom::HandwritingRecognizerSpec::New(
language_),
recognizer_.BindNewPipeAndPassReceiver(),
base::BindOnce(
&HandwritingModelLoaderTest::OnHandwritingModelLoaderComplete,
base::Unretained(this)),
&fake_client_);
base::RunLoop().RunUntilIdle();
EXPECT_EQ(result_, expected_result);
}
void SetLanguage(const std::string& language) { language_ = language; }
// Creates a dlc list with one dlc inside.
void AddDlcsWithContent(const std::string& dlc_id) {
dlcservice::DlcsWithContent dlcs_with_content;
dlcs_with_content.add_dlc_infos()->set_id(dlc_id);
fake_client_.set_dlcs_with_content(dlcs_with_content);
}
// Sets InstallDlc error.
void SetInstallError(const std::string& error) {
fake_client_.set_install_error(error);
fake_client_.set_install_root_path("/any-path");
}
// Sets "ondevice_handwriting" value.
void SetSwitchValue(const std::string& switch_value) {
base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
ash::switches::kOndeviceHandwritingSwitch, switch_value);
}
private:
TaskEnvironment task_environment_{
TaskEnvironment::MainThreadType::DEFAULT,
TaskEnvironment::ThreadPoolExecutionMode::QUEUED};
ScopedCommandLine scoped_command_line_;
chromeos::FakeDlcserviceClient fake_client_;
chromeos::machine_learning::FakeServiceConnectionImpl
fake_service_connection_;
LoadHandwritingModelResult result_;
std::string language_;
mojo::Remote<chromeos::machine_learning::mojom::HandwritingRecognizer>
recognizer_;
};
TEST_F(HandwritingModelLoaderTest, HandwritingNotEnabled) {
SetSwitchValue("random_string");
// Random switch value should return FEATURE_NOT_SUPPORTED_ERROR.
ExpectLoadHandwritingModelResult(
LoadHandwritingModelResult::FEATURE_NOT_SUPPORTED_ERROR);
}
TEST_F(HandwritingModelLoaderTest, LoadingWithInvalidLanguage) {
SetSwitchValue("use_rootfs");
SetLanguage("random string as language");
// Random language code should return LANGUAGE_NOT_SUPPORTED_ERROR.
ExpectLoadHandwritingModelResult(
LoadHandwritingModelResult::LANGUAGE_NOT_SUPPORTED_ERROR);
}
TEST_F(HandwritingModelLoaderTest, LoadingWithUseRootfs) {
SetSwitchValue("use_rootfs");
// Load from rootfs should return success.
ExpectLoadHandwritingModelResult(LoadHandwritingModelResult::OK);
}
TEST_F(HandwritingModelLoaderTest, LoadingWithoutDlcOnDevice) {
SetSwitchValue("use_dlc");
AddDlcsWithContent("random dlc-id");
// Random dlc id should return DLC_DOES_NOT_EXIST.
ExpectLoadHandwritingModelResult(
LoadHandwritingModelResult::DLC_DOES_NOT_EXIST);
}
TEST_F(HandwritingModelLoaderTest, DlcInstalledWithError) {
SetSwitchValue("use_dlc");
AddDlcsWithContent(kLibHandwritingDlcId);
SetInstallError("random error");
// InstallDlc error should return DLC_INSTALL_ERROR.
ExpectLoadHandwritingModelResult(
LoadHandwritingModelResult::DLC_INSTALL_ERROR);
}
TEST_F(HandwritingModelLoaderTest, DlcInstalledWithoutError) {
SetSwitchValue("use_dlc");
AddDlcsWithContent(kLibHandwritingDlcId);
SetInstallError(dlcservice::kErrorNone);
// InstallDlc without an error should return success.
ExpectLoadHandwritingModelResult(LoadHandwritingModelResult::OK);
}
} // namespace machine_learning
} // namespace ash
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