// Test getId method from parent class
        CharMappingItem item = new CharMappingItem(42L, new String[] { "input" }, "output");
        assertEquals(42L, item.getId());
    }

    public void test_getCreatedBy_getCreatedTime() {
        // Test inherited methods from DictionaryItem
        CharMappingItem item = new CharMappingItem(1L, new String[] { "input" }, "output");

        // Test basic properties that exist