Modernes C++ programmieren

//#(compile) c++; compiler:g132; options:-O3 -std=c++23; libs:-
// https://godbolt.org/z/ba7e7s8qK 
#define BOOST_TEST_MAIN test_main            // generiert main() in diesem Modul
#include <boost/test/included/unit_test.hpp> // Framework
#include <boost/test/test_tools.hpp>         // BOOST_CHECK etc
unsigned fib(unsigned n);                    // zu testen
namespace {
using namespace boost::unit_test;
BOOST_AUTO_TEST_CASE( test_fib_low )         // beliebiger Name des Testcases
{
    BOOST_CHECK( fib(0) == 0 );              // einzelne Assertions
    BOOST_CHECK( fib(1) == 1 );
    BOOST_CHECK( fib(2) == 1 );
    BOOST_CHECK( fib(3) == 2 );
    BOOST_CHECK( fib(4) == 3 );
    BOOST_CHECK( fib(5) == 5 );
    BOOST_CHECK( fib(6) == 8 );
}
}