if (sessionId == null) { // create session id
            sessionId = RandomStringUtils.randomAlphabetic(15);
        }
        resultBuf.append("Session Id: ").append(sessionId).append("\n");
        if (jobExecutor != null) {
            jobExecutor.addShutdownListener(() -> ComponentUtil.getProcessHelper().destroyProcess(sessionId));
        }

        try {
            webFsIndexHelper.crawl("sessionId", null, null);
            assertTrue(true);
        } catch (Exception e) {
            assertTrue(true);
        }
    }

    @Test
    public void test_crawl_withEmptyLists() {
        try {
            webFsIndexHelper.crawl("sessionId", Collections.emptyList(), Collections.emptyList());
            assertTrue(true);

    }

    // Test addFinishedSessionId
    @Test
    public void test_addFinishedSessionId() {
        final String sessionId = "session123";
        indexUpdater.addFinishedSessionId(sessionId);
        assertTrue(indexUpdater.finishedSessionIdList.contains(sessionId));
    }

    // Test addFinishedSessionId with multiple sessions
    @Test
    public void test_addFinishedSessionId_multiple() {

        if (StringUtil.isBlank(options.sessionId)) {
            // use a default session id
            final SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
            options.sessionId = sdf.format(new Date());
        } else {
            options.sessionId = options.sessionId.replace('-', '_');
        }

        };
        ComponentUtil.register(client, "searchEngineClient");

        final String sessionId = "session1";

        assertEquals(1, indexingHelper.deleteBySessionId(sessionId));
        assertEquals("fess.update", resultMap.get("index"));
        assertEquals("segment", resultMap.get("field"));
        assertEquals(sessionId, resultMap.get("value"));
    }

    @Test
    public void test_deleteByConfigId() {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The session ID field for searching crawling information.
     */
    public String sessionId;

    }

    @Test
    public void test_sessionCountId() {
        final String sessionId = "12345";
        final String sessionCountId = sessionId + "-1";
        assertNull(crawlingConfigHelper.get(sessionCountId));
        crawlingConfigHelper.store(sessionId, crawlingConfigHelper.getCrawlingConfig("W1"));
        assertEquals("1", crawlingConfigHelper.get(sessionCountId).getId());

            "type" : "long"
          },
          "expiredTime" : {
            "type" : "long"
          },
          "name" : {
            "type" : "keyword"
          },
          "sessionId" : {
            "type" : "keyword"
          }
        }
      }
    },
    "settings" : {
      "index" : {
        "creation_date" : "1509021050413",
        "number_of_shards" : "5",

        return 0;
    }

    /**
     * Deletes all documents associated with the specified session ID.
     *
     * @param sessionId the session ID to delete documents for
     * @return the number of documents that were deleted
     */
    public long deleteBySessionId(final String sessionId) {
        final SearchEngineClient searchEngineClient = ComponentUtil.getSearchEngineClient();

     */
    protected static class Options {
        /** The session ID for the suggest creation process. */
        @Option(name = "-s", aliases = "--sessionId", metaVar = "sessionId", usage = "Session ID")
        protected String sessionId;

        /** The name of the suggest creator instance. */
        @Option(name = "-n", aliases = "--name", metaVar = "name", usage = "Name")
        protected String name;