List<LogNotificationEvent> remaining = ComponentUtil.getLogNotificationHelper().drainAll();
        assertEquals(0, remaining.size());
    }

    @Test
    public void test_flush_withEvents_drainsBuffer() {
        ComponentUtil.getLogNotificationHelper()
                .offer(new LogNotificationEvent(System.currentTimeMillis(), "ERROR", "org.test", "flush msg", null));

        logNotificationTarget.flush();