srsLTE/lib/test/srslog/file_test_utils.h

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/*
* Copyright 2013-2020 Software Radio Systems Limited
*
* This file is part of srsLTE.
*
* srsLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef SRSLOG_FILE_TEST_UTILS_H
#define SRSLOG_FILE_TEST_UTILS_H
#include <cstdio>
#include <fstream>
#include <string>
#include <unistd.h>
#include <vector>
namespace file_test_utils {
/// Removes a list of files from the file system on object destruction.
class scoped_file_deleter
{
std::vector<std::string> paths;
public:
explicit scoped_file_deleter(const std::string& path) : paths({path}) {}
scoped_file_deleter(std::initializer_list<std::string> init) : paths(init) {}
~scoped_file_deleter()
{
for (const auto& path : paths) {
::remove(path.c_str());
}
}
};
/// Returns true if a file exists in the specified path, otherwise returns
/// false.
inline bool file_exists(const std::string& path)
{
return ::access(path.c_str(), F_OK) == 0;
}
/// Reads the contents of the file specified in path and returns true if they
/// match with the data in entries, otherwise returns false.
inline bool compare_file_contents(const std::string& path,
const std::vector<std::string>& entries)
{
std::ifstream file(path, std::ios::binary);
if (!file.is_open()) {
return false;
}
std::vector<std::string> data;
for (std::string line; std::getline(file, line);) {
data.push_back(line + '\n');
}
return (data == entries);
}
} // namespace file_test_utils
#endif // SRSLOG_FILE_TEST_UTILS_H