indexUpdater.finishCrawling = false;

        indexUpdater.destroy();

        assertTrue(crawler.stopCalled);
    }

    // Test destroy when crawling is finished
    public void test_destroy_finished() {
        indexUpdater.finishCrawling = true;
        indexUpdater.destroy();
        // finishCrawling should be set when max empty list count is exceeded
        // In test environment this may not work as expected