byte[] buffer = new byte[1024];

        int written = request.writeBytesWireFormat(buffer, 0);

        // Should write exactly 56 bytes (structure size without data)
        assertEquals(56, written);
        // Check structure size (first 2 bytes should be 57)
        assertEquals(57, (buffer[0] & 0xFF) | ((buffer[1] & 0xFF) << 8));
    }

    @Test

    }

    /**
     * Creates a basic negotiate response buffer with minimum valid structure.
     */
    private byte[] createBasicNegotiateResponseBuffer() {
        byte[] buffer = new byte[300]; // Sufficient size for basic structure + offsets

        // Structure size (65)
        SMBUtil.writeInt2(65, buffer, 0);

        // Security mode

 */
package jcifs.internal.smb2.ioctl;

import jcifs.Decodable;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 SRV_COPYCHUNK_COPY response data structure. This structure contains the result
 * of a server-side copy operation.
 *
 * @author mbechler
 *
 */
public class SrvCopyChunkCopyResponse implements Decodable {

    /**

 */
package jcifs.internal.smb2.ioctl;

import jcifs.Encodable;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 SRV_COPYCHUNK data structure. This structure represents a single chunk specification
 * for server-side copy operations.
 *
 * @author mbechler
 *
 */
public class SrvCopychunk implements Encodable {

    private final long sourceOffset;

 */
package jcifs.internal.smb2.ioctl;

import jcifs.Encodable;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 SRV_COPYCHUNK_COPY data structure. This structure is used to perform server-side
 * copy operations with multiple chunk specifications.
 *
 * @author mbechler
 *
 */
public class SrvCopychunkCopy implements Encodable {

import jcifs.internal.AllocInfo;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;

/**
 * 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.
 */

        // When
        int bytesWritten = request.writeBytesWireFormat(buffer, offset);

        // Then
        assertEquals(32, bytesWritten);

        // Verify structure size (32)
        assertEquals(32, SMBUtil.readInt2(buffer, offset));

        // Verify notify flags
        assertEquals(Smb2ChangeNotifyRequest.SMB2_WATCH_TREE, SMBUtil.readInt2(buffer, offset + 2));

 */
package jcifs.internal.smb2.ioctl;

import jcifs.Decodable;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Validate Negotiate Info response data structure. This structure contains the server's
 * validation of the originally negotiated SMB2 dialect.
 *
 * @author mbechler
 *
 */
public class ValidateNegotiateInfoResponse implements Decodable {

    /**

    @Test
    @DisplayName("Test wire format structure matches SMB2 specification")
    void testWireFormatStructure() {
        byte[] buffer = new byte[256];
        Arrays.fill(buffer, (byte) 0xCC); // Fill with pattern to detect unwritten areas

        int written = request.writeBytesWireFormat(buffer, 0);

        // Verify structure according to SMB2 FLUSH specification
        // Structure Size (2 bytes) - should be 24

            // Execute
            int bytesWritten = request.writeBytesWireFormat(buffer, headerStart);

            // Verify structure
            assertEquals(49, SMBUtil.readInt2(buffer, headerStart)); // Structure size
            assertEquals(data.length, SMBUtil.readInt4(buffer, headerStart + 4)); // Data length
            assertEquals(1024L, SMBUtil.readInt8(buffer, headerStart + 8)); // Offset