final ResponseData responseData = new ResponseData();
        responseData.setUrl("file:/test.txt");
        responseData.setCharSet(Constants.UTF_8);
        responseData.setResponseBody(data);
        responseData.setMimeType("text/plain");
        final ResultData resultData = textTransformer.transform(responseData);
        assertEquals("xyz", new String(resultData.getData(), resultData.getEncoding()));

        assertNotNull(result2.getData());

        // ResponseData with response body
        ResponseData withBodyData = new ResponseData();
        withBodyData.setUrl("http://example.com");
        withBodyData.setResponseBody("Test content".getBytes());
        ResultData result3 = testTransformer.transform(withBodyData);
        assertNotNull(result3);
        assertNotNull(result3.getData());
    }

    /**

                            try (InputStream contentStream = new BufferedInputStream(new SmbFileInputStream(file))) {
                                responseData.setResponseBody(InputStreamUtil.getBytes(contentStream));
                            } catch (final Exception e) {
                                logger.warn("I/O Exception.", e);

                            try (InputStream contentStream = new BufferedInputStream(new SmbFileInputStream(file))) {
                                responseData.setResponseBody(InputStreamUtil.getBytes(contentStream));
                            } catch (final Exception e) {
                                logger.warn("I/O Exception.", e);

                    try (InputStream contentStream = new BufferedInputStream(minioClient.getObject(args))) {
                        responseData.setResponseBody(InputStreamUtil.getBytes(contentStream));
                    } catch (final Exception e) {
                        logger.warn("I/O Exception.", e);

            responseData.setMethod("GET");
            responseData.setMimeType("text/html");
            responseData.setParentUrl("http://fess.codelibs.org/");
            responseData.setResponseBody(data.getBytes());
            responseData.setSessionId("test-1");
            responseData.setStatus(0);
            responseData.setUrl("http://fess.codelibs.org/test.html");

                }
            }

            long contentLength = 0;
            String contentEncoding = Constants.UTF_8;
            if (httpEntity == null) {
                responseData.setResponseBody(new byte[0]);
                if (contentType == null) {
                    contentType = defaultMimeType;
                }
            } else {