load_module("test_module")

auto o := null_factory();

assert_true(o.is_var_null());

update_shared_ptr(o);

assert_false(o.is_var_null());
assert_true(o.base_only_func() == -9);

nullify_shared_ptr(o);
o.nullify_shared_ptr();

assert_true(o.is_var_null());

try {
  o.func();
} catch (e) {
  exit(0);
}

assert_true(false);