}

    @Test
    public void test_constructor_withNonZeroId() {
        // Test constructor with id != 0 (existing item)
        ProtwordsItem item = new ProtwordsItem(123, "existingword");

        assertEquals(123, item.getId());
        assertEquals("existingword", item.getInput());
        assertNull(item.getNewInput());
    }

    @Test
    public void test_getNewInput() {
        // Test getNewInput method