writeLittleEndianLong(baos, 72); // offset (aligned)

            // Buffer 2: SERVER_CHECKSUM
            writeLittleEndianInt(baos, PacConstants.SERVER_CHECKSUM);
            writeLittleEndianInt(baos, 20); // signature size
            writeLittleEndianLong(baos, 80); // offset (aligned)

            // Buffer 3: PRIVSVR_CHECKSUM

    // Helper to create a fresh request under test
    private Smb2LogoffRequest newRequest() {
        return new Smb2LogoffRequest(configuration);
    }

    @Test
    @DisplayName("size() returns 8-byte aligned value (header + 4)")
    void size_returnsAlignedValue() {
        // Arrange
        Smb2LogoffRequest req = newRequest();
        int base = Smb2Constants.SMB2_HEADER_LENGTH + 4; // structure size

        setupMockConfig();
        Smb2IoctlRequest request = new Smb2IoctlRequest(mockConfig, TEST_CONTROL_CODE);

        int size = request.size();

        // Base size: SMB2_HEADER_LENGTH (64) + 56 = 120, aligned to 8
        assertEquals(120, size);
    }

    @Test
    @DisplayName("Test size calculation with input data")
    void testSizeWithInputData() {
        setupMockConfig();

    @Test
    void testAlign() {
        // Align to 4-byte boundary
        ndrBuffer.setIndex(1);
        int alignedBytes = ndrBuffer.align(4);
        assertEquals(3, alignedBytes); // Should advance by 3 bytes (1 -> 4)
        assertEquals(4, ndrBuffer.getIndex());
        assertEquals(4, ndrBuffer.getLength()); // Length should be updated

        // Already aligned
        ndrBuffer.setIndex(4);

        assertEquals(0, transaction.pad(0)); // Already aligned
        assertEquals(0, transaction.pad(4)); // Already aligned
        assertEquals(0, transaction.pad(8)); // Already aligned
        assertEquals(3, transaction.pad(1)); // Need 3 bytes to align to 4
        assertEquals(2, transaction.pad(2)); // Need 2 bytes to align to 4
        assertEquals(1, transaction.pad(3)); // Need 1 byte to align to 4
    }

    @Test

        assertEquals(0, bytesRead);
    }

    @Test
    @DisplayName("Test decode with non-aligned next entry offset throws exception")
    void testDecodeNonAlignedNextOffset() {
        byte[] buffer = new byte[100];
        // Write non-aligned next entry offset (not divisible by 4)
        SMBUtil.writeInt4(7, buffer, 0); // 7 is not aligned to 4 bytes
        SMBUtil.writeInt4(FileNotifyInformation.FILE_ACTION_ADDED, buffer, 4);

    @Test
    @DisplayName("Test readParametersWireFormat with non-aligned nextEntryOffset throws exception")
    void testReadParametersWireFormatNonAlignedOffset() throws Exception {
        ByteBuffer buffer = ByteBuffer.allocate(100);
        buffer.order(ByteOrder.LITTLE_ENDIAN);

        // Create notification with non-aligned nextEntryOffset
        buffer.putInt(3); // Non-aligned nextEntryOffset (not divisible by 4)

        void testBoundaryConditions() {
            // Test with exactly aligned data
            request.setData(new byte[8], 0, 8); // 8-byte aligned
            assertEquals(((Smb2Constants.SMB2_HEADER_LENGTH + 48 + 8 + 7) / 8) * 8, request.size());

            // Test with unaligned data
            request.setData(new byte[7], 0, 7); // Not 8-byte aligned

        // When
        int size = request.size();

        // Then - should include context sizes
        assertTrue(size > 112); // Bigger than without contexts
        assertEquals(0, size % 8); // Should be 8-byte aligned
    }

    @Test
    @DisplayName("Should write bytes to wire format correctly")
    void testWriteBytesWireFormat() {
        // Given

        // When
        int size = request.size();

        // Then
        // Size should be aligned to 8 bytes: SMB2_HEADER_LENGTH + 4 bytes for cancel structure
        int expectedSize = ((Smb2Constants.SMB2_HEADER_LENGTH + 4 + 7) / 8) * 8;
        assertEquals(expectedSize, size, "Size calculation should be correct and 8-byte aligned");
    }

    @Test
    @DisplayName("Test writeBytesWireFormat writes correct bytes")