}

    @Test
    @DisplayName("readBytesWireFormat is a no‑op and returns zero")
    void testReadBytesWireFormatNoop() {
        byte[] buffer = new byte[10];
        int used = cmd.readBytesWireFormat(buffer, 0);
        assertEquals(0, used, "readBytesWireFormat is unimplemented and must return 0");
    }

 * 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() {

     *
     * @throws SMBProtocolDecodingException
     *             if the response data is malformed
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#readBytesWireFormat(byte[], int)
     */
    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) throws SMBProtocolDecodingException {
        final int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if (structureSize != 2) {

    }

    /**
     * Test readBytesWireFormat always returns 0
     */
    @Test
    public void testReadBytesWireFormat() {
        SmbComWrite write = new SmbComWrite();
        byte[] buffer = new byte[10];
        int result = write.readBytesWireFormat(buffer, 0);
        assertEquals(0, result, "readBytesWireFormat should always return 0");
    }

    /**

        assertEquals(0, result);
    }

    /**
     * Test readBytesWireFormat.
     */
    @Test
    void testReadBytesWireFormat() {
        SmbComDeleteDirectory sdd = new SmbComDeleteDirectory("testDir");
        byte[] buffer = new byte[10];
        int result = sdd.readBytesWireFormat(buffer, 0);
        assertEquals(0, result);
    }

    /**
     * Test toString method.
     */

        return 0;
    }

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

        return 0;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb1.ServerMessageBlock#readBytesWireFormat(byte[], int)
     */
    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

        SMBUtil.writeInt2(0, dst, dstIndex + 2);
        return 4;
    }

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

    @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 ("SmbComWriteAndXResponse[" + super.toString() + ",count=" + count + "]");
    }

        }

        @Test
        @DisplayName("readBytesWireFormat should return 0")
        void testReadBytesReturnsZero() throws Exception {
            // Given
            byte[] buffer = new byte[100];
            int bufferIndex = 10;

            // When
            Method method = SmbComNtCancel.class.getDeclaredMethod("readBytesWireFormat", byte[].class, int.class);
            method.setAccessible(true);