utun2/tests/test_utils.h

/**
 * @file test_utils.h
 * @brief Utility functions for cross-platform tests
 */

#ifndef TEST_UTILS_H
#define TEST_UTILS_H

#include "../lib/platform_compat.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef _WIN32
#include <windows.h>
#include <direct.h>

// Windows temp directory buffer
static char test_temp_dir[MAX_PATH];

// Cross-platform mkdtemp for Windows
static inline int test_mkdtemp(char *template_str) {
    char tmp_path[MAX_PATH];
    GetTempPathA(MAX_PATH, tmp_path);
    
    // Generate unique directory name
    srand((unsigned int)GetTickCount());
    int attempts = 0;
    while (attempts < 100) {
        snprintf(test_temp_dir, sizeof(test_temp_dir), "%s\\utun_test_%08x", 
                 tmp_path, (unsigned int)rand());
        if (_mkdir(test_temp_dir) == 0) {
            // Copy path back to caller's buffer if provided
            if (template_str) {
                size_t len = strlen(test_temp_dir);
                memcpy(template_str, test_temp_dir, len + 1);  // Include null terminator
            }
            return 0;  // Success
        }
        attempts++;
    }
    return -1;  // Failed after 100 attempts
}

// Cross-platform unlink for Windows
static inline int test_unlink(const char *path) {
    return _unlink(path);
}

// Cross-platform rmdir for Windows
static inline int test_rmdir(const char *path) {
    return _rmdir(path);
}

#else
// Linux/macOS - use standard functions
#include <unistd.h>

static inline int test_mkdtemp(char *template_str) {
    return (mkdtemp(template_str) == NULL) ? -1 : 0;
}

static inline int test_unlink(const char *path) {
    return unlink(path);
}

static inline int test_rmdir(const char *path) {
    return rmdir(path);
}

#endif

#endif // TEST_UTILS_H