passwdgen/tests/passwdgen_test.cpp

// tests/passwdgen_test.cpp
#include "../passwdgen.h"
#include <iostream>
#include <regex>
#include <cassert>

void test_random_string_length() {
    for (const int lengths[] = {0, 1, 10, 32, 100}; const auto length : lengths) {
        std::string result = random_string(length, false);
        assert(result.length() == length);

        std::string result_with_punc = random_string(length, true);
        assert(result_with_punc.length() == length);
    }
    std::cout << "Length test passed\n";
}

void test_alphanumeric_only() {
    const std::regex alphanumeric_only("^[a-zA-Z0-9]*$");

    for (int i = 0; i < 10; i++) {
        std::string result = random_string(20, false);
        assert(std::regex_match(result, alphanumeric_only));
    }
    std::cout << "Alphanumeric test passed\n";
}

void test_with_punctuation() {
    bool found_special = false;

    for (int i = 0; i < 100 && !found_special; i++) {
        std::string result = random_string(100, true);
        if (!std::regex_match(result, std::regex("^[a-zA-Z0-9]*$"))) {
            found_special = true;
        }
    }

    assert(found_special);
    std::cout << "Punctuation test passed\n";
}

int main() {
    test_random_string_length();
    test_alphanumeric_only();
    test_with_punctuation();
    std::cout << "All tests passed!\n";
    return 0;
}