void testWriteAndXWireFormatChainsPlainSMB() {
        DummyPlainSMB next = new DummyPlainSMB();
        DummyAndXBlock block = new DummyAndXBlock(next);
        block.customBatchLimit = 2; // batchLevel (0) < limit (2) so chaining allowed
        block.uid = 0x1234;
        block.useUnicode = true;

        byte[] buf = new byte[256];
        int n = block.writeAndXWireFormat(buf, 0);

        assertTrue(n > 0);

        assertEquals("\\third\\path", request.getPath());

        // Multiple leading backslashes - only first one gets stripped, then trailing ones get stripped
        // But getPath() adds a backslash at the beginning, so \\fourth\path\\ becomes \fourth\path\
        request.setPath("\\\\fourth\\path\\\\");
        assertEquals("\\\\fourth\\path\\", request.getPath());
    }

        void testEmptyAndBlank() throws Exception {
            // No subauthorities
            SID s1 = new SID("S-1-5");
            assertTrue(s1.isEmpty());
            // isBlank will fail if sub_authority is null, so we skip that check for s1

            // All-zero subauthorities
            byte[] ident = new byte[] { 0, 0, 0, 0, 0, 0 };
            rpc.sid_t st = buildSidT((byte) 1, ident, 0, 0);

     * href="../../../nbtcodes.html">Here</a> is
     * a fairly complete list of NetBIOS hex codes. Scope is not used but is
     * still functional in other NetBIOS products and so for completeness it has been
     * implemented. A <code>scope</code> of <code>null</code> or <code>""</code>
     * signifies no scope.
     *
     * @param host the name to resolve

     */
    private static final int BLOCK_LENGTH = 64; //    = 512 / 8;

    /**
     * 4 32-bit words (interim result)
     */
    private int[] context = new int[4];

    /**
     * Number of bytes processed so far mod. 2 power of 64.
     */
    private long count;

    /**
     * 512 bits input buffer = 16 x 32-bit words holds until reaches 512 bits.
     */
    private byte[] buffer = new byte[BLOCK_LENGTH];

            Object arg = inv.getArgument(0);
            if (arg instanceof Smb2CreateRequest) {
                Smb2CreateRequest create = (Smb2CreateRequest) arg;
                // Initialize response chain so query exists
                create.initResponse(cifsContext);
                Smb2QueryDirectoryRequest q = (Smb2QueryDirectoryRequest) getNextOf(create);

            verify(mockBuffer).enc_ndr_long(message.call_id);
            verify(mockBuffer).enc_ndr_long(12345); // From TestDcerpcMessage.encode_in
            // Note: ptype = 2 (RESPONSE) so it's safe to verify
            verify(mockBuffer).enc_ndr_small(DcerpcConstants.RPC_PT_RESPONSE);
        }
    }

    @Nested
    @DisplayName("Message Decoding Tests")
    class MessageDecodingTests {

        byte[] messageBytes = original.toByteArray();

        // When
        Type3Message parsed = new Type3Message(messageBytes);

        // Then
        // Note: getType() method does not exist, so we cannot compare message types
        assertEquals(original.getDomain(), parsed.getDomain());
        assertEquals(original.getUser(), parsed.getUser());
        assertEquals(original.getWorkstation(), parsed.getWorkstation());

        void testLockSequenceInformation() {
            // Note: lockSequenceNumber and lockSequenceIndex are private and not settable
            // They default to 0, so we test the default encoding
            byte[] buffer = new byte[256];
            request.writeBytesWireFormat(buffer, 0);

            int lockSequence = SMBUtil.readInt4(buffer, 4);

        // Flags (2 bytes) - should be 0 by default
        assertEquals(0, SMBUtil.readInt2(buffer, 2));

        // Reserved (4 bytes) - The implementation skips writing these bytes,
        // so they will have the initial pattern (0xCCCCCCCC)
        // This is expected behavior as seen in the implementation at line 131
        assertEquals((byte) 0xCC, buffer[4]);
        assertEquals((byte) 0xCC, buffer[5]);