public void testFunctionalFromTarHierarchy() throws Exception {
    log.debug3("in testFromTarHierarchy");
    // load the tarballs
    InputStream file_input = null;
    try {
      file_input = getResourceAsStream(realTARFile_A);
      // UrlCacher uc = au.makeUrlCacher(TAR_A_BASE);
      // uc.storeContent(file_input, tarHeader);
      UrlCacher uc = tarAu.makeUrlCacher(new UrlData(file_input, tarHeader, TAR_A_BASE));
      uc.storeContent();
      IOUtil.safeClose(file_input);

      file_input = getResourceAsStream(realTARFile_B);
      // uc = au.makeUrlCacher(TAR_B_BASE);
      // uc.storeContent(file_input, tarHeader);
      uc = tarAu.makeUrlCacher(new UrlData(file_input, tarHeader, TAR_B_BASE));
      uc.storeContent();
      IOUtil.safeClose(file_input);

    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } finally {
      IOUtil.safeClose(file_input);
    }

    CachedUrlSet cus = tarAu.getAuCachedUrlSet();
    for (CachedUrl cu : cus.getCuIterable()) {
      log.debug3("AU - cu is: " + cu.getUrl());
      cu.release();
    }

    // We need to start from the level of the ArticleMetadataExtractor
    MyListEmitter emitter = new MyListEmitter();
    ArticleMetadataExtractor amEx =
        new ElsevierDeferredArticleMetadataExtractor(ArticleFiles.ROLE_ARTICLE_METADATA);

    Iterator<ArticleFiles> it = tarAu.getArticleIterator(MetadataTarget.Any());
    while (it.hasNext()) {
      ArticleFiles af = it.next();
      log.debug3("Metadata test - articlefiles " + af.toString());
      // CachedUrl cu = af.getFullTextCu();
      CachedUrl cu = af.getRoleCu(ArticleFiles.ROLE_ARTICLE_METADATA);
      log.debug3("metadata cu is " + cu.getUrl());
      // List<ArticleMetadata> mdlist = mle.extract(MetadataTarget.Any(), cu);
      amEx.extract(MetadataTarget.Any(), af, emitter);
      List<ArticleMetadata> returnList = emitter.getAmList();

      assertNotNull(returnList);
      log.debug3("size of returnList is " + returnList.size());
      Iterator<ArticleMetadata> mdIt = returnList.iterator();
      ArticleMetadata mdRecord = null;
      while (mdIt.hasNext()) {
        mdRecord = (ArticleMetadata) mdIt.next();
        validateCompleteMetadataRecord(mdRecord);
      }
    }
  }
  public void testCreateArticleFiles() throws Exception {
    PluginTestUtil.crawlSimAu(sau);

    String pat0 = "001file[.]html";
    String rep0 = "52/1/S1";
    PluginTestUtil.copyAu(sau, au, ".*[.]html$", pat0, rep0);
    String pat1 = "001file[.]pdf";
    String rep1 = "52/1/S1.pdf";
    PluginTestUtil.copyAu(sau, au, ".*[.]pdf$", pat1, rep1);

    String pdfurl = "http://pediatrics.aappublications.org/cgi/reprint/52/1/S1.pdf";
    String url = "http://pediatrics.aappublications.org/cgi/reprint/52/1/S1";

    au.makeCachedUrl(url);
    CachedUrl cu = au.makeCachedUrl(pdfurl);
    assertNotNull(cu);
    SubTreeArticleIterator artIter = createSubTreeIter();
    assertNotNull(artIter);
    ArticleFiles af = artIter.next();
    assertNotNull(af);
    System.out.println("article files::" + af);
    assertEquals(url, af.getRoleCu(ArticleFiles.ROLE_FULL_TEXT_PDF_LANDING_PAGE).getUrl());
    assertEquals(pdfurl, af.getRoleCu(ArticleFiles.ROLE_FULL_TEXT_PDF).getUrl());
  }