return dstIndex - start;
    }

    @Override
    int readParameterWordsWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    public String toString() {

        return 0;
    }

    @Override
    protected int readParameterWordsWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    public String toString() {
        return ("SmbComTreeDisconnect[" + super.toString() + "]");
    }

 * provided purely to expose protected state and to satisfy the abstract
 * method contract.  The tests focus on public API behaviour and the
 * parsing logic in {@code readParameterWordsWireFormat} and
 * {@code readBytesWireFormat}.
 */
public class SmbComTransactionResponseTest {
    /** A minimal concrete subclass for testing */
    private static class DummyResponse extends SmbComTransactionResponse {
        DummyResponse() {

        bufferIndex += 2;
        dataOffset = readInt2(buffer, bufferIndex);
        bufferIndex += 12; // 10 reserved

        return bufferIndex - start;
    }

    @Override
    int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        // handled special in SmbTransport.doRecv()
        return 0;
    }

    @Override
    public String toString() {

        }

        return dstIndex - start;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#readBytesWireFormat(byte[], int)
     */
    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

        return 0;
    }

    @Override
    int readParameterWordsWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    public String toString() {
        return ("SmbComLogoffAndX[" + super.toString() + "]");
    }

    @Override
    int readParameterWordsWireFormat(final byte[] buffer, final int bufferIndex) {
        count = readInt2(buffer, bufferIndex) & 0xFFFFL;
        return 8;
    }

    @Override
    int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    public String toString() {
        return ("SmbComWriteResponse[" + super.toString() + ",count=" + count + "]");
    }

        return 0;
    }

    @Override
    protected int readParameterWordsWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    public String toString() {
        return ("SmbComFindClose2[" + super.toString() + ",sid=" + this.sid + "]");
    }

        this.count = SMBUtil.readInt2(buffer, bufferIndex) & 0xFFFFL;
        return 8;
    }

    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    public String toString() {
        return ("SmbComWriteAndXResponse[" + super.toString() + ",count=" + this.count + "]");

        bufferIndex += 2;
        serverFid = readInt4(buffer, bufferIndex);
        bufferIndex += 6;

        return bufferIndex - start;
    }

    @Override
    int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    public String toString() {