Function write_config

tests/unittests/test_server_config.cpp:25–39

    std::filesystem::remove_all(root, ec);
    std::filesystem::create_directories(root);
    return root;
}

std::filesystem::path write_config(
    const std::filesystem::path & root,
    const std::string & name,
    const std::string & text) {
    const auto path = root / name;
    std::ofstream out(path);
    if (!out) {
        throw std::runtime_error("failed to create test config: " + path.string());
    }
    out << text;
    if (!out) {
        throw std::runtime_error("failed to write test config: " + path.string());
    }
    return path;
}