@Test
    @DisplayName("Test toString method")
    void testToString() throws SMBProtocolDecodingException {
        // Setup test data
        byte[] buffer = new byte[22];
        long expectedAllocationSize = 65536L;
        long expectedEndOfFile = 49152L;
        int expectedNumberOfLinks = 15;
        boolean expectedDeletePending = true;
        boolean expectedDirectory = true;

        // Encode test data

        when(locator.getUNCPath()).thenReturn("\\\\server\\share\\dir\\");
        when(tree.getConfig()).thenReturn(config);
        when(config.getMaximumBufferSize()).thenReturn(65535);
        when(config.getListSize()).thenReturn(65535);

        // Arrange: initial page with two entries, then one more entry, then no more files
        FileEntry fe1 = mock(FileEntry.class);
        lenient().when(fe1.getName()).thenReturn("file1");

    private void setupNegotiateStubs() {
        when(mockNegotiate.getNegotiatedCapabilities()).thenReturn(0x00123456);
        when(mockNegotiate.getNegotiatedSendBufferSize()).thenReturn(65535);
        when(mockNegotiate.getNegotiatedMpxCount()).thenReturn(65535);
        when(mockNegotiate.getNegotiatedSessionKey()).thenReturn(0x12345678);
    }

    /** Simple test stub of {@link ServerData} */

        void testSetReadLength() {
            assertDoesNotThrow(() -> request.setReadLength(0));
            assertDoesNotThrow(() -> request.setReadLength(1024));
            assertDoesNotThrow(() -> request.setReadLength(65536));
            assertDoesNotThrow(() -> request.setReadLength(Integer.MAX_VALUE));
        }

        @Test
        @DisplayName("Should set offset correctly")
        void testSetOffset() {

    }

    @Override
    public String getProviderName() {
        return "TCP Fallback";
    }

    @Override
    public int getMaxMessageSize() {
        return 65536; // 64KB for TCP
    }

    @Override
    public void shutdown() {
        // Nothing to clean up for TCP
    }

    private Smb2QueryDirectoryRequest request;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        when(mockConfig.getMaximumBufferSize()).thenReturn(65536);
        when(mockConfig.getListSize()).thenReturn(65536);
        when(mockContext.getConfig()).thenReturn(mockConfig);
    }

    @Test
    @DisplayName("Test constructor with configuration only")
    void testConstructorWithConfig() {

    }

    @Test
    @DisplayName("Test sign method with large data array")
    void testSignWithLargeData() {
        // Arrange
        byte[] largeData = new byte[65536]; // 64KB
        for (int i = 0; i < largeData.length; i++) {
            largeData[i] = (byte) (i % 256);
        }
        int offset = 1024;
        int length = 32768; // 32KB

        // Act

        // init(th) behavior inside SmbFileInputStream constructor
        when(tree.isSMB2()).thenReturn(smb2);
        when(tree.getReceiveBufferSize()).thenReturn(4096);
        when(tree.getMaximumBufferSize()).thenReturn(65535);
        when(tree.hasCapability(anyInt())).thenReturn(false);
        return new SmbPipeInputStream(handle, tree);
    }

    private SmbPipeInputStream newStreamWithMinimalStubs(boolean smb2) throws CIFSException {

            bb.putShort((short) 0); // tflags high bytes

            buffer.decode(testBuffer, 0, testBuffer.length);

            assertEquals(32767, buffer.getPathConsumed()); // 65534 / 2
            assertEquals(65535, buffer.getTflags());
        }

        @Test
        @DisplayName("Should handle minimum buffer size")
        void testMinimumBufferSize() {

        bufferIndex += 4;

        // Validate security buffer parameters
        if (securityBufferLength < 0 || securityBufferLength > 65536) { // 64KB max for security buffer
            throw new SMBProtocolDecodingException("Invalid security buffer length: " + securityBufferLength + " (must be 0-65536)");
        }
        if (securityBufferOffset < 0) {