public void testSafeAdd() throws Exception {
        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

    void testSafeAddition() {
        assertEquals(100, InputValidator.safeAdd(50, 50));
        assertEquals(0, InputValidator.safeAdd(-50, 50));

        assertThrows(ArithmeticException.class, () -> InputValidator.safeAdd(Integer.MAX_VALUE, 1));
        assertThrows(ArithmeticException.class, () -> InputValidator.safeAdd(Integer.MIN_VALUE, -1));
    }

    @Test

     *
     * @param a first operand
     * @param b second operand
     * @return sum of a and b
     * @throws ArithmeticException if overflow occurs
     */
    public static int safeAdd(int a, int b) {
        validateIntegerAddition(a, b, "Addition");
        return a + b;
    }

    /**
     * Safe integer multiplication with overflow check
     *
     * @param a first operand

     * Safely add integers checking for overflow
     *
     * @param a first value
     * @param b second value
     * @return sum
     * @throws SmbException if overflow would occur
     */
    public int safeAdd(int a, int b) throws SmbException {
        totalValidations.incrementAndGet();

        long result = (long) a + (long) b;
        if (result > Integer.MAX_VALUE || result < Integer.MIN_VALUE) {