euler 36

decimal-bin-palindromic.py

from unittest import TestCase, main

class TestDecimalBinPalindromicsNumbers(TestCase):
    def test_585_and_1001001001_are_palindromic(self):
        self.assertTrue(is_palindromic_with_base_2(number=585))

    def test_sum_of_all_palindromic_dec_bin_number_are_1000000(self):
        self.assertEquals(sum_all_palindromic_dec_bin_of_numbers_to(1000000), 872187)


def is_palindromic_with_base_2(number):
    str_number = str(number)
    bin_number = bin(number)[2:]

    if str_number == str_number[::-1] and bin_number == bin_number[::-1]:
        return True
    return False

def sum_all_palindromic_dec_bin_of_numbers_to(number):
    return sum([x for x in range(1, number+1) if is_palindromic_with_base_2(x)])

main()