getpkg/dehydrate/test/dehydrate_test.cpp
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Modify dehydrate/test.sh
2025-06-25 17:54:30 +12:00

365 lines
12 KiB
C++

#include <iostream>
#include <fstream>
#include <filesystem>
#include <cstring>
#include <vector>
#include <sstream>
#include <iomanip>
#include <sys/wait.h>
#include <unistd.h>
#include <algorithm>
namespace fs = std::filesystem;
// Helper function to execute a command and capture its output
bool execute_command(const std::string& cmd, std::string& output) {
FILE* pipe = popen(cmd.c_str(), "r");
if (!pipe) return false;
char buffer[128];
output.clear();
while (fgets(buffer, sizeof(buffer), pipe) != nullptr) {
output += buffer;
}
int status = pclose(pipe);
return WIFEXITED(status) && WEXITSTATUS(status) == 0;
}
// Helper function to calculate file hash (simple checksum for testing)
std::string calculate_file_hash(const fs::path& filepath) {
std::ifstream file(filepath, std::ios::binary);
if (!file.is_open()) return "";
std::ostringstream oss;
oss << file.rdbuf();
std::string content = oss.str();
// Simple hash for demonstration
size_t hash = 0;
for (char c : content) {
hash = hash * 31 + static_cast<unsigned char>(c);
}
std::stringstream ss;
ss << std::hex << hash;
return ss.str();
}
// Helper function to compare two files
bool compare_files(const fs::path& file1, const fs::path& file2) {
// Compare existence
if (!fs::exists(file1) || !fs::exists(file2)) {
std::cout << "File existence mismatch: " << file1 << " vs " << file2 << std::endl;
return false;
}
// Compare size
if (fs::file_size(file1) != fs::file_size(file2)) {
std::cout << "File size mismatch: " << file1 << " (" << fs::file_size(file1)
<< ") vs " << file2 << " (" << fs::file_size(file2) << ")" << std::endl;
return false;
}
// Compare content
std::ifstream f1(file1, std::ios::binary);
std::ifstream f2(file2, std::ios::binary);
std::string content1((std::istreambuf_iterator<char>(f1)), std::istreambuf_iterator<char>());
std::string content2((std::istreambuf_iterator<char>(f2)), std::istreambuf_iterator<char>());
if (content1 != content2) {
std::cout << "File content mismatch: " << file1 << " vs " << file2 << std::endl;
return false;
}
// Compare permissions
auto perms1 = fs::status(file1).permissions();
auto perms2 = fs::status(file2).permissions();
if (perms1 != perms2) {
std::cout << "File permissions mismatch: " << file1
<< " (" << static_cast<unsigned>(perms1) << ") vs "
<< file2 << " (" << static_cast<unsigned>(perms2) << ")" << std::endl;
return false;
}
return true;
}
// Helper function to compare directories recursively
bool compare_directories(const fs::path& dir1, const fs::path& dir2) {
std::vector<fs::path> files1, files2;
// Collect all files from dir1
for (const auto& entry : fs::recursive_directory_iterator(dir1)) {
if (fs::is_regular_file(entry)) {
files1.push_back(fs::relative(entry.path(), dir1));
}
}
// Collect all files from dir2
for (const auto& entry : fs::recursive_directory_iterator(dir2)) {
if (fs::is_regular_file(entry)) {
files2.push_back(fs::relative(entry.path(), dir2));
}
}
// Sort for comparison
std::sort(files1.begin(), files1.end());
std::sort(files2.begin(), files2.end());
// Check if same files exist
if (files1 != files2) {
std::cout << "Directory structure mismatch!" << std::endl;
return false;
}
// Compare each file
bool all_match = true;
for (const auto& rel_path : files1) {
if (!compare_files(dir1 / rel_path, dir2 / rel_path)) {
all_match = false;
}
}
return all_match;
}
int main() {
std::cout << "=== Dehydrate Test Program ===" << std::endl;
// Create test directory structure
fs::path test_root = "dehydrate_test_data";
fs::path original_dir = test_root / "original";
fs::path generated_dir = test_root / "generated";
fs::path recreated_dir = test_root / "recreated";
// Clean up any existing test data
if (fs::exists(test_root)) {
fs::remove_all(test_root);
}
// Create directories
fs::create_directories(original_dir / "subdir");
fs::create_directories(generated_dir);
fs::create_directories(recreated_dir);
std::cout << "\n1. Creating test files..." << std::endl;
// Create test file 1: Simple text file
{
std::ofstream file(original_dir / "test1.txt");
file << "This is a simple text file.\nIt has multiple lines.\nLine 3.";
file.close();
fs::permissions(original_dir / "test1.txt", fs::perms::owner_read | fs::perms::owner_write);
}
// Create test file 2: Binary file with special characters
{
std::ofstream file(original_dir / "test2.bin", std::ios::binary);
unsigned char binary_data[] = {0x00, 0xFF, 0x42, 0x13, 0x37, 0xDE, 0xAD, 0xBE, 0xEF};
file.write(reinterpret_cast<char*>(binary_data), sizeof(binary_data));
file.close();
fs::permissions(original_dir / "test2.bin", fs::perms::owner_all);
}
// Create test file 3: Executable script
{
std::ofstream file(original_dir / "test3.sh");
file << "#!/bin/bash\necho 'Hello from test script'\nexit 0";
file.close();
fs::permissions(original_dir / "test3.sh",
fs::perms::owner_all | fs::perms::group_read | fs::perms::group_exec);
}
// Create test file 4: File in subdirectory
{
std::ofstream file(original_dir / "subdir" / "nested.txt");
file << "This file is in a subdirectory.";
file.close();
fs::permissions(original_dir / "subdir" / "nested.txt", fs::perms::owner_read);
}
// Create test file 5: Very small file
{
std::ofstream file(original_dir / "small.txt");
file << "x"; // Single character to avoid empty file
file.close();
fs::permissions(original_dir / "small.txt", fs::perms::owner_read | fs::perms::owner_write);
}
std::cout << "Created test files in: " << original_dir << std::endl;
// Build dehydrate if not already built
std::cout << "\n2. Building dehydrate tool..." << std::endl;
std::string output;
if (!fs::exists("../output/dehydrate")) {
if (!execute_command("cd .. && ./build.sh", output)) {
std::cerr << "Failed to build dehydrate!" << std::endl;
return 1;
}
}
// Test single file dehydration
std::cout << "\n3. Testing single file dehydration..." << std::endl;
{
std::string cmd = "../output/dehydrate -s " +
(original_dir / "test1.txt").string() + " " +
generated_dir.string();
if (!execute_command(cmd, output)) {
std::cerr << "Failed to dehydrate single file!" << std::endl;
return 1;
}
// Check if generated files exist
if (!fs::exists(generated_dir / "_test1.cpp") ||
!fs::exists(generated_dir / "_test1.hpp")) {
std::cerr << "Generated files not found!" << std::endl;
return 1;
}
std::cout << "Generated: _test1.cpp and _test1.hpp" << std::endl;
}
// Test directory dehydration
std::cout << "\n4. Testing directory dehydration..." << std::endl;
{
std::string cmd = "../output/dehydrate -s " +
original_dir.string() + " " +
generated_dir.string();
if (!execute_command(cmd, output)) {
std::cerr << "Failed to dehydrate directory!" << std::endl;
return 1;
}
// Check if generated files exist
if (!fs::exists(generated_dir / "_original.cpp") ||
!fs::exists(generated_dir / "_original.hpp")) {
std::cerr << "Generated directory files not found!" << std::endl;
return 1;
}
std::cout << "Generated: _original.cpp and _original.hpp" << std::endl;
}
// Create test program that uses the generated code
std::cout << "\n5. Creating test program to recreate files..." << std::endl;
{
std::ofstream test_prog(test_root / "test_recreate.cpp");
test_prog << R"cpp(
#include <iostream>
#include "generated/_test1.hpp"
#include "generated/_original.hpp"
int main() {
std::cout << "Testing file recreation..." << std::endl;
// Test single file recreation
std::cout << "Recreating single file..." << std::endl;
if (recreate_test1::recreate_file("recreated")) {
std::cout << "Single file recreation returned true" << std::endl;
}
// Test directory recreation
std::cout << "Recreating directory tree..." << std::endl;
if (recreate_original::recreate_tree("recreated/tree")) {
std::cout << "Directory recreation returned true" << std::endl;
}
return 0;
}
)cpp";
}
// Compile the test program
std::cout << "\n6. Compiling recreation test program..." << std::endl;
{
std::string cmd = "cd " + test_root.string() +
" && g++ -std=c++23 -static -I. test_recreate.cpp generated/_test1.cpp generated/_original.cpp" +
" -o test_recreate";
if (!execute_command(cmd, output)) {
std::cerr << "Failed to compile test program!" << std::endl;
std::cerr << "Output: " << output << std::endl;
return 1;
}
}
// Run the recreation test
std::cout << "\n7. Running recreation test..." << std::endl;
{
std::string cmd = "cd " + test_root.string() + " && ./test_recreate";
if (!execute_command(cmd, output)) {
std::cerr << "Failed to run recreation test!" << std::endl;
return 1;
}
std::cout << output << std::endl;
}
// Compare results
std::cout << "\n8. Comparing original and recreated files..." << std::endl;
// Compare single file
std::cout << "\nComparing single file recreation:" << std::endl;
if (compare_files(original_dir / "test1.txt", recreated_dir / "test1.txt")) {
std::cout << "✓ Single file matches!" << std::endl;
} else {
std::cout << "✗ Single file does NOT match!" << std::endl;
}
// Compare directory tree
std::cout << "\nComparing directory tree recreation:" << std::endl;
if (compare_directories(original_dir, recreated_dir / "tree")) {
std::cout << "✓ Directory tree matches!" << std::endl;
} else {
std::cout << "✗ Directory tree does NOT match!" << std::endl;
}
// Test re-running recreation (should detect no changes needed)
std::cout << "\n9. Testing re-run (should detect no changes)..." << std::endl;
{
std::string cmd = "cd " + test_root.string() + " && ./test_recreate";
if (!execute_command(cmd, output)) {
std::cerr << "Failed to re-run recreation test!" << std::endl;
return 1;
}
std::cout << output << std::endl;
}
// Modify a file and test update detection
std::cout << "\n10. Testing update detection..." << std::endl;
{
// Modify the recreated file
std::ofstream file(recreated_dir / "test1.txt");
file << "Modified content";
file.close();
// Re-run recreation
std::string cmd = "cd " + test_root.string() + " && ./test_recreate";
if (!execute_command(cmd, output)) {
std::cerr << "Failed to test update!" << std::endl;
return 1;
}
std::cout << output << std::endl;
// Verify it was restored
if (compare_files(original_dir / "test1.txt", recreated_dir / "test1.txt")) {
std::cout << "✓ File correctly restored after modification!" << std::endl;
} else {
std::cout << "✗ File NOT restored correctly!" << std::endl;
}
}
std::cout << "\n=== Test Complete ===" << std::endl;
return 0;
}