private NtTransNotifyChange notifyChange;

    // Completion filter constants for testing
    private static final int FILE_NOTIFY_CHANGE_FILE_NAME = 0x00000001;
    private static final int FILE_NOTIFY_CHANGE_DIR_NAME = 0x00000002;
    private static final int FILE_NOTIFY_CHANGE_ATTRIBUTES = 0x00000004;
    private static final int FILE_NOTIFY_CHANGE_SIZE = 0x00000008;

        }

        @Test
        @DisplayName("Verify FILE_NOTIFY_CHANGE_DIR_NAME constant value")
        void testFileNotifyChangeDirName() {
            assertEquals(0x00000002, FileNotifyInformation.FILE_NOTIFY_CHANGE_DIR_NAME);
        }

        @Test
        @DisplayName("Verify FILE_NOTIFY_CHANGE_NAME constant value")

    void testSetCompletionFilter() throws Exception {
        // Given
        int filter = Smb2ChangeNotifyRequest.FILE_NOTIFY_CHANGE_FILE_NAME | Smb2ChangeNotifyRequest.FILE_NOTIFY_CHANGE_DIR_NAME
                | Smb2ChangeNotifyRequest.FILE_NOTIFY_CHANGE_ATTRIBUTES;

        // When
        request.setCompletionFilter(filter);

        // Then

    /**
     * SMB2 File Notify Change constants
     */
    private static final int FILE_NOTIFY_CHANGE_FILE_NAME = 0x00000001;
    private static final int FILE_NOTIFY_CHANGE_DIR_NAME = 0x00000002;
    private static final int FILE_NOTIFY_CHANGE_ATTRIBUTES = 0x00000004;
    private static final int FILE_NOTIFY_CHANGE_SIZE = 0x00000008;

            default: return DirectoryChangeType.ATTRIBUTES_CHANGED;
        }
    }
    
    private int getNotificationFilter() {
        return FILE_NOTIFY_CHANGE_FILE_NAME
             | FILE_NOTIFY_CHANGE_DIR_NAME
             | FILE_NOTIFY_CHANGE_ATTRIBUTES
             | FILE_NOTIFY_CHANGE_SIZE
             | FILE_NOTIFY_CHANGE_LAST_WRITE;
    }
    
    // SMB2 Change Notify constants