* @param bufferIndex
     *            offset in buffer
     * @return new transform header instance
     */
    public static Smb2TransformHeader decode(final byte[] buffer, int bufferIndex) {
        final Smb2TransformHeader header = new Smb2TransformHeader();

        // Check protocol ID
        final int protocolId = SMBUtil.readInt4(buffer, bufferIndex);
        if (protocolId != TRANSFORM_PROTOCOL_ID) {

import jcifs.BaseTest;

/**
 * Test class for Smb2TransformHeader functionality
 */
@DisplayName("Smb2TransformHeader Tests")
class Smb2TransformHeaderTest extends BaseTest {

    private Smb2TransformHeader transformHeader;
    private byte[] testNonce;
    private long testSessionId;

    @BeforeEach
    void setUp() {
        transformHeader = new Smb2TransformHeader();
        testNonce = new byte[16];

            }
        }

        try {
            final byte[] nonce = generateNonce();
            final int flags = getTransformFlags();

            final Smb2TransformHeader transformHeader = new Smb2TransformHeader(nonce, message.length, flags, sessionId);
            final byte[] associatedData = transformHeader.getAssociatedData();

            // Perform encryption based on cipher type