@Test
    public void test_constructor_withIdZero() {
        // Test constructor with id = 0 (create mode)
        ProtwordsItem item = new ProtwordsItem(0, "testword");

        assertEquals(0, item.getId());
        assertEquals("testword", item.getInput());
        assertEquals("testword", item.getNewInput());
    }

    @Test
    public void test_constructor_withNonZeroId() {
        // Test constructor with id != 0 (existing item)

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

    @Test
    public void test_append_warnEvent_withWarnLevel() {
        final LogNotificationAppender warnAppender = LogNotificationAppender.createAppender("testWarn", "WARN", null, null);
        final LogEvent event = createLogEvent(Level.WARN, "org.codelibs.fess.test", "test warn message");
        warnAppender.append(event);