static final byte SMB_COM_TRANSACTION2 = (byte) 0x32;
    static final byte SMB_COM_FIND_CLOSE2 = (byte) 0x34;
    static final byte SMB_COM_TREE_DISCONNECT = (byte) 0x71;
    static final byte SMB_COM_NEGOTIATE = (byte) 0x72;
    static final byte SMB_COM_SESSION_SETUP_ANDX = (byte) 0x73;
    static final byte SMB_COM_LOGOFF_ANDX = (byte) 0x74;
    static final byte SMB_COM_TREE_CONNECT_ANDX = (byte) 0x75;

    void testSetFlagTrue() {
        msg.setFlag(0x4, true);
        assertTrue(msg.getFlag(0x4), "Bit should be set after setFlag(true)");
    }

    @Test
    @DisplayName("setFlag false clears the bit")
    void testSetFlagFalse() {
        msg.setFlag(0x4, true);
        msg.setFlag(0x4, false);
        assertFalse(msg.getFlag(0x4), "Bit should be cleared after setFlag(false)");
    }

     */
    public static final byte SMB_COM_DELETE_DIRECTORY = (byte) 0x01;

    /**
     * SMB command to close a file handle.
     */
    public static final byte SMB_COM_CLOSE = (byte) 0x04;

    /**
     * SMB command to delete a file.
     */
    public static final byte SMB_COM_DELETE = (byte) 0x06;

    /**
     * SMB command to rename a file.
     */

     */
    @Test
    @DisplayName("Test byte array fields (encryptionKey and guid)")
    public void testByteArrayFields() {
        // Test encryptionKey
        byte[] key = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
        serverData.encryptionKey = key;
        assertNotNull(serverData.encryptionKey);
        assertArrayEquals(key, serverData.encryptionKey);

        // Test with empty array

        // Then
        assertTrue(result > 0);
        assertEquals((byte) 0x04, dst[0]); // First buffer format byte

        // Find the second buffer format byte
        int secondBufferFormatIndex = oldFileName.length() + 2; // 1 for first 0x04, 1 for null terminator
        assertEquals((byte) 0x04, dst[secondBufferFormatIndex]);
    }

    /**
     * Test writeBytesWireFormat with Unicode encoding

        originalPairs.add(new AvFlags(0x12345678));
        originalPairs.add(new AvTimestamp(new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 }));
        originalPairs.add(new AvTargetName("TESTNAME".getBytes()));
        originalPairs.add(new AvSingleHost(new byte[] { 0x11, 0x22, 0x33, 0x44 }));
        originalPairs.add(new AvChannelBindings(new byte[] { 0x55, 0x66 }));

        byte[] encoded = AvPairs.encode(originalPairs);

        assertEquals(0x03, Smb2QueryDirectoryRequest.FILE_BOTH_DIRECTORY_INFO);
        assertEquals(0x0C, Smb2QueryDirectoryRequest.FILE_NAMES_INFO);
        assertEquals(0x24, Smb2QueryDirectoryRequest.FILE_ID_BOTH_DIRECTORY_INFO);
        assertEquals(0x26, Smb2QueryDirectoryRequest.FILE_ID_FULL_DIRECTORY_INFO);
    }

    @Test
    @DisplayName("Test all query flags constants")

 * Tests all constructors, parsing, and serialization functionality.
 */
@DisplayName("Type2Message Comprehensive Tests")
class Type2MessageTest {

    private static final byte[] TEST_CHALLENGE = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
    private static final String TEST_TARGET = "TEST_TARGET";
    private static final String TEST_DOMAIN = "TEST_DOMAIN";
    private static final String TEST_HOSTNAME = "TEST_HOSTNAME";

    /**

        assertEquals(1 + expectedString.length + 1, used, "Expected exactly one command byte plus OEM string and NUL terminator");
        assertEquals(0x04, buffer[0] & 0xFF, "First byte must be SMB_COM_QUERY_INFORMATION type 0x04");
        // Verify that the string part ends with the null terminator
        assertArrayEquals(expectedString, subArray(buffer, 1, expectedString.length));

        doAnswer(inv -> {
            byte[] b = inv.getArgument(0);
            int off = inv.getArgument(1);
            b[off] = 0x12;
            b[off + 1] = 0x34;
            return 2;
        }).when(raf).read(any(byte[].class), anyInt(), eq(2));
        assertEquals(0x1234, raf.readUnsignedShort());
        assertEquals((short) 0x1234, raf.readShort());