}

    @Test
    public void test_fetchNewEvents_emptyResponse() {
        setupMockFessConfig();
        final String searchResponse = "{\"hits\":{\"hits\":[]}}";
        final CoordinatorHelper helper = createCapturingHelper("node1@host1", null, null, createMockResponse(200, searchResponse));
        setLastEventCheckTime(helper, 4000L);

        final List<EventInfo> events = helper.fetchNewEvents();