Encodable enc = new ByteEncodable(src, 5, 0); // zero length
        byte[] dst = new byte[8];
        Arrays.fill(dst, (byte) 0x7A);

        int written = enc.encode(dst, 3);

        assertEquals(0, enc.size(), "size() must be zero");
        assertEquals(0, written, "encode() must return zero for zero length");
        for (byte b : dst) {
            assertEquals((byte) 0x7A, b, "Destination should remain unchanged");
        }

        @Override
        protected int writeSetupWireFormat(byte[] dst, int dstIndex) {
            if (setupBuffer != null && setupBuffer.length > 0) {
                System.arraycopy(setupBuffer, 0, dst, dstIndex, setupBuffer.length);
            }
            return setupWireFormatReturn;
        }

        @Override
        protected int writeParametersWireFormat(byte[] dst, int dstIndex) {

    @Override
    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        SMBUtil.writeInt2(49, dst, dstIndex);
        final int dataOffsetOffset = dstIndex + 2;
        dstIndex += 4;
        SMBUtil.writeInt4(this.dataLength, dst, dstIndex);
        dstIndex += 4;
        SMBUtil.writeInt8(this.offset, dst, dstIndex);
        dstIndex += 8;

        byte[] dst = new byte[10];
        int dstIndex = 0;

        // When
        int bytesWritten = trans2GetDfsReferral.writeSetupWireFormat(dst, dstIndex);

        // Then
        assertEquals(2, bytesWritten);
        assertEquals(SmbComTransaction.TRANS2_GET_DFS_REFERRAL, dst[0]);
        assertEquals((byte) 0x00, dst[1]);
    }

    @Test

        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        // Create buffer for encoding - initially allocate some space
        byte[] encodeBuffer = new byte[1024];
        NdrBuffer dst = new NdrBuffer(encodeBuffer, 0);
        info1.encode(dst);

        ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
        // Use the encoded buffer for decoding
        NdrBuffer src = new NdrBuffer(encodeBuffer, 0);

        byte[] dst = new byte[100];

        int result = netShareEnum.writeSetupWireFormat(dst, 0);
        assertEquals(0, result);

        // Test with different offset
        result = netShareEnum.writeSetupWireFormat(dst, 50);
        assertEquals(0, result);

        // Verify no data was written
        assertArrayEquals(new byte[100], dst);
    }

    @Test

        smbComOpenAndX = new SmbComOpenAndX(fileName, access, 0, andx);
        // Buffer needs 26 bytes: 2+2+2+2+4+2+4+8 = 26
        byte[] dst = new byte[26];
        int result = smbComOpenAndX.writeParameterWordsWireFormat(dst, 0);
        assertEquals(26, result);
    }

    /**
     * Test writeBytesWireFormat method with Unicode.
     */
    @Test

    public int encode(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        SMBUtil.writeTime(this.createTime, dst, dstIndex);
        dstIndex += 8;
        SMBUtil.writeTime(this.lastAccessTime, dst, dstIndex);
        dstIndex += 8;
        SMBUtil.writeTime(this.lastWriteTime, dst, dstIndex);
        dstIndex += 8;
        SMBUtil.writeTime(this.changeTime, dst, dstIndex);
        dstIndex += 8;

            SMBUtil.writeInt4(dstIndex - getHeaderStart(), dst, inputOffsetOffset);
            final int len = this.inputData.encode(dst, dstIndex);
            SMBUtil.writeInt4(len, dst, inputLengthOffset);
            dstIndex += len;
        } else {
            SMBUtil.writeInt4(0, dst, inputOffsetOffset);
            SMBUtil.writeInt4(0, dst, inputLengthOffset);
        }

        if (this.outputData != null) {

            andx = null;

            dst[start + ANDX_COMMAND_OFFSET] = (byte) 0xFF;
            dst[start + ANDX_RESERVED_OFFSET] = (byte) 0x00;
            //            dst[start + ANDX_OFFSET_OFFSET] = (byte)0x00;
            //            dst[start + ANDX_OFFSET_OFFSET + 1] = (byte)0x00;
            dst[start + ANDX_OFFSET_OFFSET] = (byte) 0xde;
            dst[start + ANDX_OFFSET_OFFSET + 1] = (byte) 0xde;