assertEquals(10, validator.safeAdd(5, 5));
        assertEquals(0, validator.safeAdd(-5, 5));
        assertEquals(-10, validator.safeAdd(-5, -5));
    }

    @Test
    public void testSafeAddOverflow() throws Exception {
        assertThrows(SmbException.class, () -> {
            validator.safeAdd(Integer.MAX_VALUE, 1);
        });
    }

    @Test