* This structure provides complete allocation details including total allocation units, caller-available free units,
 * actual free allocation units, sectors per allocation unit, and bytes per sector.
 */
public class FileFsFullSizeInformation implements AllocInfo, FileSystemInformation, Decodable {

    private long alloc; // Also handles SmbQueryFSSizeInfo
    private long free;

/**
 * Represents the FILE_FS_SIZE_INFORMATION structure used to query file system size information.
 * This structure provides details about the total allocation units, free allocation units,
 * sectors per allocation unit, and bytes per sector for a file system volume.
 */
public class FileFsSizeInformation implements AllocInfo {

    private long alloc; // Also handles SmbQueryFSSizeInfo
    private long free;
    private int sectPerAlloc;

        writeInt8(2000, buffer, 0); // total allocation units
        writeInt8(1000, buffer, 8); // free allocation units
        writeInt4(8, buffer, 16); // sectors per allocation unit
        writeInt4(4096, buffer, 20); // bytes per sector

        int bytesRead = response.readDataWireFormat(buffer, 0, buffer.length);

        assertEquals(24, bytesRead, "Should read 24 bytes");

        @DisplayName("Should decode various sector and allocation configurations")
        @CsvSource({ "1000, 500, 1, 512", // Minimal sectors per alloc
                "1000, 500, 8, 512", // Typical configuration
                "1000, 500, 64, 512", // Large allocation units
                "1000, 500, 8, 4096", // 4K sectors
                "1000, 500, 16, 4096", // Large sectors and allocation

    @DisplayName("Test decode with large bytes per sector")
    void testDecodeWithLargeBytesPerSector() throws SMBProtocolDecodingException {
        // Prepare test data with large bytesPerSect
        byte[] buffer = new byte[22];
        int idFileSystem = 0x22222222;
        int sectPerAlloc = 8;
        long alloc = 10000L;
        long free = 5000L;
        int bytesPerSect = 32768; // 32KB sectors

        // Encode test data

/**
 * Represents the SMB_INFO_ALLOCATION information level used in SMB transaction requests.
 * This structure provides allocation information for a file system including total units,
 * free units, sectors per allocation unit, and bytes per sector.
 */
public class SmbInfoAllocation implements AllocInfo {

    /**
     * Default constructor for SMB allocation information.
     */
    public SmbInfoAllocation() {

        @DisplayName("Should decode various sector and allocation configurations")
        @CsvSource({ "1000, 500, 600, 1, 512", // Minimal sectors per alloc
                "1000, 500, 600, 8, 512", // Typical configuration
                "1000, 500, 600, 64, 512", // Large allocation units
                "1000, 500, 600, 8, 4096", // 4K sectors
                "1000, 500, 600, 16, 4096", // Large sectors and allocation

        SMBUtil.writeInt8(500000, buffer, 28); // Available allocation units
        SMBUtil.writeInt4(512, buffer, 36); // Sectors per unit
        SMBUtil.writeInt4(4096, buffer, 40); // Bytes per sector

        int result = response.readBytesWireFormat(buffer, bufferIndex);

        assertNotNull(response.getInfo());

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