// Test with maximum Long value
        dictionaryItem.id = Long.MAX_VALUE;
        assertEquals(Long.MAX_VALUE, dictionaryItem.getId());
    }

    @Test
    public void test_getId_minValue() {
        // Test with minimum Long value
        dictionaryItem.id = Long.MIN_VALUE;
        assertEquals(Long.MIN_VALUE, dictionaryItem.getId());
    }

    @Test
    public void test_multipleInstances() {