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// Copyright Contributors to the DNF5 project.
// Copyright Contributors to the libdnf project.
// SPDX-License-Identifier: GPL-2.0-or-later
//
// This file is part of libdnf: https://github.com/rpm-software-management/libdnf/
//
// Libdnf is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// Libdnf 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with libdnf. If not, see <https://www.gnu.org/licenses/>.
#include "test_case_fixture.hpp"
#include <stdlib.h>
#include <map>
#include <string>
#include <vector>
extern char ** environ;
static bool environ_backuped{false};
static std::map<std::string, std::string> backup_environ;
void TestCaseFixture::setUp() {
// Back up the current environment values.
// Optimization. Do this only if the backup was not there before.
std::string name;
if (!environ_backuped) {
for (char ** it = environ; *it; ++it) {
char * name_end = *it;
while (*name_end != '=' && *name_end != '\0') {
++name_end;
}
name.assign(*it, name_end);
backup_environ[name] = getenv(name.c_str());
}
environ_backuped = true;
}
}
void TestCaseFixture::tearDown() {
// Remove extraneous variables from environment.
std::string name;
std::vector<std::string> vars_to_remove;
for (char ** it = environ; *it; ++it) {
char * name_end = *it;
while (*name_end != '=' && *name_end != '\0') {
++name_end;
}
name.assign(*it, name_end);
auto backup_it = backup_environ.find(name);
if (backup_it == backup_environ.end()) {
vars_to_remove.emplace_back(name);
}
}
for (const auto & var : vars_to_remove) {
unsetenv(var.c_str());
}
// Add the missing and synchronize the value of the existing environment variables.
for (const auto & backup_var : backup_environ) {
const char * cbackup_name = backup_var.first.c_str();
const std::string & backup_value = backup_var.second;
const char * cvalue = getenv(cbackup_name);
if (!cvalue || cvalue != backup_value) {
setenv(cbackup_name, backup_value.c_str(), 1);
}
}
}
std::unique_ptr<libdnf5::Base> TestCaseFixture::get_preconfigured_base() {
temp_dir = std::make_unique<libdnf5::utils::fs::TempDir>("libdnf5_unittest");
std::filesystem::create_directory(temp_dir->get_path() / "installroot");
std::unique_ptr<libdnf5::Base> base(new libdnf5::Base());
base->get_config().get_installroot_option().set(temp_dir->get_path() / "installroot");
base->get_config().get_cachedir_option().set(temp_dir->get_path() / "cache");
// Prevent loading libdnf5 plugins
base->get_config().get_plugins_option().set(false);
return base;
}
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