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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.
#ifndef COMPONENTS_SERVICES_ON_DEVICE_TRANSLATION_TEST_TEST_UTIL_H_
#define COMPONENTS_SERVICES_ON_DEVICE_TRANSLATION_TEST_TEST_UTIL_H_
#include <memory>
#include <string>
#include <vector>
#include "base/files/file_path.h"
#include "base/files/scoped_temp_dir.h"
#include "base/task/sequenced_task_runner.h"
#include "components/services/on_device_translation/public/mojom/on_device_translation_service.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver.h"
namespace on_device_translation {
// Returns the path to a mock library that can be used for testing.
// The library is a valid library, but it will not do anything useful.
// Its translate method returns the concatenation of the content of "dict.dat"
// in the passed language pack and the input text. See comments in
// mock_translate_kit_lib.cc for more details.
base::FilePath GetMockLibraryPath();
// Returns the path to a mock library that can be used for testing.
// This library does not contain any of the methods in the TranslateKit API.
// So loading it will cause the library load failure with InvalidFunctionPointer
// error.
base::FilePath GetMockInvalidFunctionPointerLibraryPath();
// Returns the path to a mock library that can be used for testing.
// The library does contain all of the methods in the TranslateKit API, but
// its CreateTranslateKit() method always fails.
base::FilePath GetMockFailingLibraryPath();
// A file to be used in the fake file system.
struct TestFile {
// The relative path of the file.
std::string relative_path;
// The content of the file.
std::string content;
};
// Sets up the data directory with the given `files`.
base::ScopedTempDir SetupDataDir(const std::vector<TestFile>& files);
// A fake implementation of FileOperationProxy for testing.
class FakeFileOperationProxy : public mojom::FileOperationProxy {
public:
// Creates a FakeFileOperationProxy with the given `files`.
static std::unique_ptr<FakeFileOperationProxy, base::OnTaskRunnerDeleter>
Create(mojo::PendingReceiver<mojom::FileOperationProxy> proxy_receiver,
const std::vector<TestFile>& files);
FakeFileOperationProxy(
mojo::PendingReceiver<mojom::FileOperationProxy> proxy_receiver,
scoped_refptr<base::SequencedTaskRunner> task_runner,
const std::vector<TestFile>& files,
base::PassKey<FakeFileOperationProxy>);
~FakeFileOperationProxy() override;
// mojom::FileOperationProxy overrides:
void FileExists(uint32_t package_index,
const base::FilePath& relative_path,
FileExistsCallback callback) override;
void Open(uint32_t package_index,
const base::FilePath& relative_path,
OpenCallback callback) override;
private:
// Returns the file path for the given `package_index` and `relative_path`.
base::FilePath GetFilePath(uint32_t package_index,
const base::FilePath& relative_path);
mojo::Receiver<mojom::FileOperationProxy> receiver_{this};
base::ScopedTempDir package_dir_;
};
} // namespace on_device_translation
#endif // COMPONENTS_SERVICES_ON_DEVICE_TRANSLATION_TEST_TEST_UTIL_H_
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