assertTrue(events.size() > 0);
    }

    @Test
    public void test_offer_bufferCapacity_dropsOldest() {
        LogNotificationHelper helper = new LogNotificationHelper();
        // Fill beyond default capacity
        for (int i = 0; i < 1100; i++) {
            helper.offer(new LogNotificationEvent(i, "ERROR", "org.test", "msg" + i, null));
        }
        List<LogNotificationEvent> events = helper.drainAll();