gnss-sdr/src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/cpu_features/test/filesystem_for_testing.h

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1.2 KiB
C++

// SPDX-FileCopyrightText: 2017 Google Inc.
// SPDX-License-Identifier: Apache-2.0
// Implements a fake filesystem, useful for tests.
#ifndef CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_
#define CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_
#include "internal/filesystem.h"
#include <memory>
#include <string>
#include <unordered_map>
namespace cpu_features
{
class FakeFile
{
public:
explicit FakeFile(int file_descriptor, const char* content);
~FakeFile();
void Open();
void Close();
int Read(int fd, void* buf, size_t count);
int GetFileDescriptor() const { return file_descriptor_; }
private:
const int file_descriptor_;
const std::string content_;
bool opened_ = false;
size_t head_index_ = 0;
};
class FakeFilesystem
{
public:
void Reset();
FakeFile* CreateFile(const std::string& filename, const char* content);
FakeFile* FindFileOrDie(const int file_descriptor) const;
FakeFile* FindFileOrNull(const std::string& filename) const;
private:
int next_file_descriptor_ = 0;
std::unordered_map<std::string, std::unique_ptr<FakeFile>> files_;
};
FakeFilesystem& GetEmptyFilesystem();
} // namespace cpu_features
#endif // CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_