@Mock
    private Configuration mockConfig;

    @Mock
    private CIFSContext mockContext;

    @Mock
    private Smb2SigningDigest mockDigest;

    @Mock
    private ServerMessageBlock2Response mockResponse;

    private TestServerMessageBlock2Request testRequest;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        testRequest = new TestServerMessageBlock2Request(mockConfig);

class ServerMessageBlock2Test {

    @Mock
    private Configuration mockConfig;

    @Mock
    private Smb2SigningDigest mockDigest;

    @Mock
    private ServerMessageBlock2Response mockResponse;

    private TestServerMessageBlock2 testMessage;

    // Test implementation of abstract class
    private static class TestServerMessageBlock2 extends ServerMessageBlock2 {
        private int bytesWritten = 0;

    void testConstructor() {
        // Given & When
        Smb2LockResponse lockResponse = new Smb2LockResponse(mockConfig);

        // Then
        assertNotNull(lockResponse);
        // Verify it's an instance of ServerMessageBlock2Response
        assertTrue(lockResponse instanceof jcifs.internal.smb2.ServerMessageBlock2Response);
    }

    @Test