int bufferIndex = 0;
            SMBUtil.writeInt2(5, buffer, bufferIndex); // Invalid structure size

            // When & Then
            SMBProtocolDecodingException exception =
                    assertThrows(SMBProtocolDecodingException.class, () -> response.readBytesWireFormat(buffer, bufferIndex));
            assertEquals("Expected structureSize = 4", exception.getMessage());
        }

import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.Configuration;
import jcifs.SmbConstants;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;
import jcifs.util.Strings;

/**
 * Test class for FileBothDirectoryInfo
 */
class FileBothDirectoryInfoTest {

    @Mock

        void testDecodeException() throws SMBProtocolDecodingException {
            byte[] buffer = new byte[100];
            when(mockFileSystemInfo.decode(any(byte[].class), anyInt(), anyInt()))
                    .thenThrow(new SMBProtocolDecodingException("Test error"));

            assertThrows(SMBProtocolDecodingException.class, () -> {
                mockFileSystemInfo.decode(buffer, 0, 100);

        return 0;
    }

    @Override
    protected int readDataWireFormat(final byte[] buffer, final int bufferIndex, final int len) throws SMBProtocolDecodingException {
        if (len > this.outputBuffer.length) {
            throw new SMBProtocolDecodingException("Payload exceeds buffer size");
        }
        System.arraycopy(buffer, bufferIndex, this.outputBuffer, 0, len);
        return len;
    }

    @Override

    @Override
    protected int readBytesWireFormat(final byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException {
        final int start = bufferIndex;

        // Validate minimum buffer size for SMB2 negotiate response
        if (buffer == null || buffer.length < bufferIndex + 65) {
            throw new SMBProtocolDecodingException("Buffer too small for SMB2 negotiate response (minimum 65 bytes required)");
        }

    }

    /**
     * {@inheritDoc}
     *
     * @throws SMBProtocolDecodingException if an error occurs during decoding
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#readBytesWireFormat(byte[], int)
     */
    @Override
    protected int readBytesWireFormat(final byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException {
        final int start = bufferIndex;

    public int getEpoch() {
        return epoch;
    }

    @Override
    public int decode(byte[] buffer, int bufferIndex, int len) throws SMBProtocolDecodingException {
        int start = bufferIndex;

        if (len < 52) {
            throw new SMBProtocolDecodingException("Lease V2 context data too short: " + len);
        }

        // Read lease V2 data (52 bytes)
        byte[] keyBytes = new byte[16];

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.ValueSource;

import jcifs.internal.AllocInfo;
import jcifs.internal.SMBProtocolDecodingException;

/**
 * Test suite for FileFsSizeInformation class
 */
class FileFsSizeInformationTest {

    private FileFsSizeInformation fileFsSizeInfo;

    @BeforeEach
    void setUp() {

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.ValueSource;

import jcifs.internal.AllocInfo;
import jcifs.internal.SMBProtocolDecodingException;

/**
 * Test suite for FileFsFullSizeInformation class
 */
class FileFsFullSizeInformationTest {

    private FileFsFullSizeInformation fileFsFullSizeInfo;

    @BeforeEach
    void setUp() {

        return data.length;
    }

    @Override
    public int decode(byte[] buffer, int bufferIndex, int len) throws SMBProtocolDecodingException {
        if (len < 20) {
            throw new SMBProtocolDecodingException("Invalid RDMA Transform Capabilities context length: " + len);
        }

        int start = bufferIndex;

        transformCount = SMBUtil.readInt2(buffer, bufferIndex);