* and managing message metadata such as IDs, commands, and authentication information.
 *
 * @author mbechler
 */
public interface CommonServerMessageBlock extends Message {

    /**
     * Decode message data from the given byte array
     *
     * @param buffer the byte array containing the message data
     * @param bufferIndex the starting index in the buffer

 * asynchronous handling, message chaining, cancellation, and timeout management.
 *
 * @author mbechler
 */
public interface CommonServerMessageBlockRequest extends CommonServerMessageBlock, Request {

    /**
     * Checks if the request will be handled asynchronously.
     *
     * @return request was handled asynchronously
     */
    boolean isResponseAsync();

    /**
     *

import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

/**
 * Test class for CommonServerMessageBlock interface
 */
class CommonServerMessageBlockTest {

    @Mock
    private CommonServerMessageBlock messageBlock;

    @Mock
    private CommonServerMessageBlockResponse response;

    @Mock
    private SMBSigningDigest digest;

    @BeforeEach

 * asynchronous response handling and response chaining capabilities.
 *
 * @author mbechler
 */
public interface CommonServerMessageBlockResponse extends CommonServerMessageBlock, Response {

    /**
     * Checks if this is an asynchronous response.
     *
     * @return is an async response
     */
    boolean isAsync();

    /**
     *

        // When
        response.exception(ex);

        // Then
        verify(response).exception(ex);
    }

    @Test
    @DisplayName("Test CommonServerMessageBlock inherited methods")
    void testCommonServerMessageBlockMethods() throws SMBProtocolDecodingException {
        // Test decode method
        byte[] buffer = new byte[512];
        int bufferIndex = 0;

    private Request<CommonServerMessageBlockResponse> request;

    @Mock
    private CommonServerMessageBlockResponse response;

    @Mock
    private CIFSContext context;

    @Mock
    private CommonServerMessageBlock disconnectRequest;

    @Mock
    private CommonServerMessageBlockRequest nextRequest;

    @BeforeEach
    void setUp() {
        // Reset mocks before each test

            byte[] data = new byte[128];
            Arrays.fill(data, (byte) 0x42);
            CommonServerMessageBlock request = mock(CommonServerMessageBlock.class);
            CommonServerMessageBlock response = mock(CommonServerMessageBlock.class);

            // Sign with first digest
            digest1.sign(data, 0, data.length, request, response);

 */
class SMBSigningDigestTest {

    @Mock
    private SMBSigningDigest signingDigest;

    @Mock
    private CommonServerMessageBlock request;

    @Mock
    private CommonServerMessageBlock response;

    @Mock
    private CommonServerMessageBlock message;

    private byte[] testData;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);

     *
     * @return list of pending operations
     */
    public List<CommonServerMessageBlock> getPendingOperations() {
        return pendingOperations;
    }

    /**
     * Add a pending operation
     *
     * @param operation operation to add
     */
    public void addPendingOperation(CommonServerMessageBlock operation) {
        pendingOperations.add(operation);
    }

    /**

     * @param request
     *            request message
     * @param response
     *            response message
     */
    void sign(byte[] data, int offset, int length, CommonServerMessageBlock request, CommonServerMessageBlock response);

    /**
     * Performs MAC signature verification. This calculates the signature
     * of the SMB and compares it to the signature field on the SMB itself.
     *
     * @param data