static int test_j(int i)
{
    const j_data *data = &jf_data[i];
    char bio_buf[80];

    BIO_snprintf(bio_buf, sizeof(bio_buf) - 1, data->format, data->value);
    if (!TEST_str_eq(bio_buf, data->expected))
        return 0;
    return 1;
}