Sophiar2/tests/core/small_obj.cpp

#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_MAIN  // in only one cpp file

#include <boost/test/unit_test.hpp>

#include "core/small_obj.hpp"

using namespace sophiar;

BOOST_AUTO_TEST_CASE(test_small_obj) {

    struct test_obj : public small_obj<test_obj> {
        explicit test_obj(int &_p) : probe(_p) {
            probe = 1;
        }

        ~test_obj() {
            probe = 2;
        }

        int &probe;
    };

    int my_probe = 0;
    {
        auto obj = test_obj::new_instance(my_probe);
        BOOST_TEST(my_probe == 1);
    }
    BOOST_TEST(my_probe == 2);

    my_probe = 0;
    {
        test_obj::pointer obj_2;
        {
            auto obj = test_obj::new_instance(my_probe);
            obj_2 = obj;
            BOOST_TEST(my_probe == 1);
            BOOST_TEST(obj_2->ref_count == 2);
        }
        BOOST_TEST(my_probe == 1);
        BOOST_TEST(obj_2->ref_count == 1);
    }
    BOOST_TEST(my_probe == 2);

}