String url = "smb://user:pass@server/share";
        String normalized = validator.validateSmbUrl(url);
        assertTrue(normalized.contains("user:pass@"));
    }

    @Test
    public void testSmbUrlWithPort() throws Exception {
        String url = "smb://server:445/share";
        String normalized = validator.validateSmbUrl(url);
        // Standard port 445 might be removed in normalization

    /**
     * Validate an SMB URL
     *
     * @param smbUrl the SMB URL to validate
     * @return normalized safe URL
     * @throws SmbException if URL is invalid
     */
    public String validateSmbUrl(String smbUrl) throws SmbException {
        if (smbUrl == null || smbUrl.isEmpty()) {
            throw new SmbException("SMB URL cannot be null or empty");
        }

        // Check URL format