}

    private boolean isLargeTransfer(CommonServerMessageBlock message) {
        if (message instanceof Smb2ReadRequest) {
            return ((Smb2ReadRequest) message).getReadLength() > 1048576; // 1MB
        }
        if (message instanceof Smb2WriteRequest) {
            // Data length not accessible, assume large writes for now
            return true;
        }
        return false;
    }

            // Given - prepare buffer with typical file system values
            ByteBuffer buffer = ByteBuffer.allocate(24);
            buffer.order(ByteOrder.LITTLE_ENDIAN);
            buffer.putLong(1048576L); // Total allocation units (1M)
            buffer.putLong(524288L); // Free allocation units (512K)
            buffer.putInt(8); // Sectors per allocation unit
            buffer.putInt(512); // Bytes per sector

        response.readParameterWordsWireFormat(buffer, 0);

        assertEquals(fileAttribute, response.getAttributes());
    }

    @ParameterizedTest
    @ValueSource(longs = { 0L, 1024L, 1048576L, 2147483647L })
    void testDifferentFileSizes(long fileSize) {
        // Test various file size values (excluding values that would overflow signed int)
        response = new SmbComQueryInformationResponse(mockConfig, 0L);

            // Given - prepare buffer with typical file system values
            ByteBuffer buffer = ByteBuffer.allocate(32);
            buffer.order(ByteOrder.LITTLE_ENDIAN);
            buffer.putLong(1048576L); // Total allocation units (1M)
            buffer.putLong(524288L); // Caller available allocation units (512K)
            buffer.putLong(524288L); // Actual free allocation units (512K)

    @Test
    public void testValidMessageSize() throws Exception {
        validator.validateMessageSize(1024, false);
        validator.validateMessageSize(65535, true);
        validator.validateMessageSize(1048576, false); // 1MB for SMB2
    }

    @Test
    public void testMessageSizeTooSmall() throws Exception {
        assertThrows(SmbException.class, () -> {
            validator.validateMessageSize(20, false);

        }

        @ParameterizedTest
        @DisplayName("Should handle various offset values")
        @ValueSource(longs = { 0L, 1L, 512L, 1024L, 4096L, 1048576L, Long.MAX_VALUE })
        void testVariousOffsets(long offset) {
            assertDoesNotThrow(() -> request.setOffset(offset));
        }

        @ParameterizedTest

            assertDoesNotThrow(() -> request.setReadLength(length));
        }

        @ParameterizedTest
        @DisplayName("Should handle various offsets")
        @ValueSource(longs = { 0L, 1L, 512L, 1024L, 4096L, 1048576L, Long.MAX_VALUE })
        void testVariousOffsets(long offset) {
            assertDoesNotThrow(() -> request.setOffset(offset));
        }
    }

    @Nested
    @DisplayName("Size Calculation Tests")

        void testSizeAndSpace() throws CIFSException {
            // Given
            long expectedLength = 1024L;
            long expectedFreeSpace = 1048576L;
            when(mockResource.length()).thenReturn(expectedLength);
            when(mockResource.getDiskFreeSpace()).thenReturn(expectedFreeSpace);

            // When
            long length = mockResource.length();

pkg syscall (freebsd-386), const MSG_CMSG_CLOEXEC ideal-int
pkg syscall (freebsd-386), const NAME_MAX = 255
pkg syscall (freebsd-386), const NAME_MAX ideal-int
pkg syscall (freebsd-386), const O_CLOEXEC = 1048576
pkg syscall (freebsd-386), const RTF_GWFLAG_COMPAT = 2147483648
pkg syscall (freebsd-386), const RTF_GWFLAG_COMPAT ideal-int
pkg syscall (freebsd-386), const RT_NORTREF = 2

    assertThat(recordedRequest.bodySize).isEqualTo(1048576)
    assertThat(recordedRequest.chunkSizes).isNotNull()
  }

  @Test
  fun uploadBodySmallFixedLength() {
    upload(false, 1048576, 256)
    val recordedRequest = server.takeRequest()
    assertThat(recordedRequest.bodySize).isEqualTo(1048576)
    assertThat(recordedRequest.chunkSizes).isNull()
  }

  @Test