CRYPTO_secure_used
size_t CRYPTO_secure_used(void);
|| !TEST_size_t_eq(CRYPTO_secure_used(), 32))
|| !TEST_size_t_eq(CRYPTO_secure_used(), 64))
if (!TEST_size_t_eq(CRYPTO_secure_used(), 32))
if (!TEST_size_t_eq(CRYPTO_secure_used(), 0)