#include "utils.h"
#include <iostream>
#include <vector>

int main() {
    std::vector<int> v;
    v.push_back(1);
    v.push_back(2);
    v.push_back(3);
    int sum = calculateSum(v);
    if (sum != 6) {
        std::cerr << "Test failed: expected 6, got " << sum << std::endl;
        return 1;
    }
    if (!isPositive(1) || isPositive(-1)) {
        std::cerr << "Test failed: isPositive check" << std::endl;
        return 1;
    }
    std::cout << "All basic tests passed" << std::endl;
    return 0;
}