assertDoesNotThrow(() -> request.setData(data, 0, data.length));
        }

        @Test
        @DisplayName("Should set data with partial buffer")
        void testSetDataPartialBuffer() {
            byte[] data = new byte[1024];
            new Random().nextBytes(data);

            assertDoesNotThrow(() -> request.setData(data, 100, 500));
        }

        @Test

        try {
            resultData.setData(content.getBytes(charsetName));
        } catch (final UnsupportedEncodingException e) {
            if (logger.isInfoEnabled()) {
                logger.info("Invalid charsetName: " + charsetName + ". Changed to " + Constants.UTF_8, e);
            }
            charsetName = Constants.UTF_8;
            resultData.setData(content.getBytes(Constants.UTF_8_CHARSET));
        }

        AccessResultDataImpl<?> accessResultData = new AccessResultDataImpl<>();
        accessResultData.setData(xml.getBytes("UTF-8"));
        accessResultData.setEncoding("UTF-8");

        Map<String, Object> dataMap = XmlUtil.getDataMap(accessResultData);
        assertNotNull(dataMap);

    public void test_getData() throws Exception {
        final AccessResultDataImpl accessResultData = new AccessResultDataImpl();
        accessResultData.setTransformerName("textTransformer");
        accessResultData.setData("xyz".getBytes());

        final Object obj = textTransformer.getData(accessResultData);
        assertNotNull(obj);
        assertTrue(obj instanceof String);
        assertEquals("xyz", obj.toString());
    }

    @Override
    public byte[] getData() {
        return data;
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.entity.AccessResultData#setData(java.lang.String)
     */
    @Override
    public void setData(final byte[] data) {
        this.data = data;
    }

    @Override
    public String getEncoding() {
        return encoding;
    }

    @Override

                return null;
            }

            ResultData resultData = new ResultData();
            resultData.setTransformerName(name);
            // Store some dummy data
            resultData.setData("test data".getBytes());

            return resultData;
        }

        @Override
        public Object getData(AccessResultData<?> accessResultData) {
            getDataCallCount.incrementAndGet();

        AccessResultImpl<Long> result = new AccessResultImpl<>();

        ResultData resultData = new ResultData();
        resultData.setTransformerName("TestTransformer");
        resultData.setData(new byte[0]); // Set data to avoid getData() error

        result.init(null, resultData);

        // CreateTime should be set
        assertNotNull(result.getCreateTime());

        setEncoding((String) src.get(ENCODING));
        final String dataStr = (String) src.get(DATA);
        if (dataStr != null) {
            try {
                setData(Base64Util.decode(dataStr));
            } catch (final Exception e) {
                throw new OpenSearchAccessException("data: " + dataStr, e);
            }
        }
    }

    /**

        if (isNotModified(responseData)) {
            final UrlQueue<?> urlQueue = CrawlingParameterUtil.getUrlQueue();
            final ResultData resultData = new ResultData();
            resultData.setData(new byte[0]);
            resultData.setEncoding(Constants.UTF_8);
            resultData.setTransformerName(Constants.NO_TRANSFORMER);
            processResult(urlQueue, responseData, resultData);

        final ResultData resultData = new ResultData();
        resultData.setTransformerName(getName());

        try (BufferedInputStream bis = new BufferedInputStream(responseData.getResponseBody())) {
            resultData.setData(IOUtils.toByteArray(bis));
            resultData.setEncoding(responseData.getCharSet());
            return resultData;
        } catch (final IOException e) {