#format python
"""ResidentRegistrationNumber test code
"""
import unittest, re, random

rrnf = r'^\d{6}-[1234]\d{6}$'

def checkRe(aStr):
    if re.match(rrnf,aStr) and int(aStr[2:4])<=12 and int(aStr[4:6])<=31:
        return 1

def getAuthenNum(aStr):
    sum = 0; i= 0
    multiplier = [2,3,4,5,6,7,8,9,2,3,4,5]
    for each in aStr[:-1]:
        if each == '-': 
            continue
        sum += int(each)*multiplier[i]
        i += 1
    return 11 - (sum % 11)
    
def checkRrn(aStr):
    if checkRe(aStr) and getAuthenNum(aStr) == int(aStr[-1]):
        return 1

def makeVirtualRrn(aBirthStr):
    rand = str(random.random()*10000)[:4]
    rrn = aBirthStr + '-11' + rand + '1'
    return rrn[:-1]+str(getAuthenNum(rrn))

class ResidentTest(unittest.TestCase):
    def testCheckRe(self):
        self.failUnless(checkRe('740101-1111119'))
        self.failUnless(checkRe('740101-1121111'))
        self.failIf(checkRe('741301-1111119'))
        self.failIf(checkRe('741133-1111119'))
    def testGetAuthenNum(self):
        self.assertEquals(8, getAuthenNum('740101-1111118'))

if __name__=='__main__':
    #unittest.main(argv=('','-v'))
    print makeVirtualRrn('740101')