PathUtils.h

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#pragma once
#include <algorithm>
#include <cstdlib>
#include <limits.h>
#include <string>
#include <unistd.h>
 
namespace PathUtils {
static inline bool isXmlFile(const std::string &filename) {
    size_t dotPos = filename.find_last_of('.');
    if (dotPos == std::string::npos || dotPos == filename.length() - 1) {
        return false;
    }
    std::string extension = filename.substr(dotPos);
    std::transform(extension.begin(), extension.end(), extension.begin(),
                   [](unsigned char c) { return std::tolower(c); });
    return extension == ".xml";
}
 
static inline std::string getTargetPath(const std::string &fullPath, const std::string &targetDir) {
    size_t pos = fullPath.rfind(targetDir);
    if (pos != std::string::npos) {
        return fullPath.substr(0, pos + targetDir.length());
    }
    return "";
}
 
static inline bool setupFileTests(std::string &targetPath, std::string &skipReason) {
    auto getCurrentPath = []() -> std::string {
        char buffer[PATH_MAX];
        if (getcwd(buffer, sizeof(buffer)) != nullptr) {
            return std::string(buffer);
        }
        return "";
    };
    auto pathExists = [](const std::string &path) -> bool { return access(path.c_str(), F_OK) == 0; };
    std::string cwd = getCurrentPath();
    if (cwd.empty()) {
        skipReason = "Unable to determine current working directory, skipping tests...";
        return false;
    }
    targetPath = PathUtils::getTargetPath(cwd, "MolSim");
    if (targetPath.empty()) {
        skipReason = "Project root directory not found, skipping tests...";
        return false;
    }
    targetPath += "/tests/files";
    if (!pathExists(targetPath)) {
        skipReason = "Test files not found, skipping tests...";
        return false;
    }
    return true;
}
} // namespace PathUtils