Reverse Integer Python Solution with Tests

lcpy gen -n 7   # by problem number
lcpy gen -s reverse_integer   # by problem name

Input: x = 123
Output: 321

Input: x = -123
Output: -321

Input: x = 120
Output: 21

class Solution:
    # Time: O(log(x))
    # Space: O(1)
    def reverse(self, x: int) -> int:
        int_max = 2**31 - 1

        result = 0
        sign = 1 if x >= 0 else -1
        x = abs(x)

        while x != 0:
            digit = x % 10
            x //= 10

            # Check for overflow before adding the digit
            if result > (int_max - digit) // 10:
                return 0

            result = result * 10 + digit

        return sign * result