#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
#include "doctest.h"
#include <iostream>

double ask_width(size_t numbers_count, std::istream& in);

TEST_CASE("ask_width returns correct width") {
    std::istringstream test_input("800\n");
    CHECK(ask_width(10, test_input) == 800);
}