assertEquals(0, events.size());
    }

    @Test
    public void test_append_nonExcludedLogger() {
        final LogEvent event = createLogEvent(Level.ERROR, "org.codelibs.fess.helper.SystemHelper", "not excluded");
        appender.append(event);

        final List<LogNotificationEvent> events = ComponentUtil.getLogNotificationHelper().drainAll();

        long base = 1700000000000L;
        List<LogNotificationEvent> events = new ArrayList<>();
        events.add(new LogNotificationEvent(base, "ERROR", "org.test.A", "first", null));
        events.add(new LogNotificationEvent(base + 1000, "WARN", "org.test.B", "second", null));
        events.add(new LogNotificationEvent(base + 2000, "ERROR", "org.test.C", "third", null));