* @param hashAlgorithm the selected hash algorithm
     * @return the created context
     * @throws CIFSException if initialization fails
     */
    public PreauthIntegrityContext initializeSession(String sessionId, byte[] salt, int hashAlgorithm) throws CIFSException {
        if (sessionId == null || sessionId.isEmpty()) {
            throw new CIFSException("Session ID cannot be null or empty");
        }

    public void testInvalidSessionIdHandling() {
        assertThrows(CIFSException.class, () -> {
            preauthService.initializeSession(null, new byte[32], PreauthIntegrityService.HASH_ALGO_SHA512);
        });

        assertThrows(CIFSException.class, () -> {
            preauthService.initializeSession("", new byte[32], PreauthIntegrityService.HASH_ALGO_SHA512);
        });
    }

    @Test