}
    }

    // Test run method basic flow
    public void test_run_basicFlow() throws Exception {
        final List<String> sessionIdList = Arrays.asList("session1");
        indexUpdater.setSessionIdList(sessionIdList);

        final CountDownLatch latch = new CountDownLatch(1);
        final AtomicBoolean errorOccurred = new AtomicBoolean(false);

        indexUpdater.setUncaughtExceptionHandler((t, e) -> {

        return sessionIdList;
    }

    /**
     * Sets the list of crawler session IDs to process.
     *
     * @param sessionIdList the list of session IDs to set
     */
    public void setSessionIdList(final List<String> sessionIdList) {
        this.sessionIdList = sessionIdList;
    }

    /**
     * Sets the flag indicating whether crawling should be finished.
     *