Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/validators/i18n/ru.py: 19%

1"""Russia.""" 

2 

3from validators.utils import validator 

4 

5 

6@validator 

7def ru_inn(value: str): 

8 """Validate a Russian INN (Taxpayer Identification Number). 

9 

10 The INN can be either 10 digits (for companies) or 12 digits (for individuals). 

11 The function checks both the length and the control digits according to Russian tax rules. 

12 

13 Examples: 

14 >>> ru_inn('500100732259') # Valid 12-digit INN 

15 True 

16 >>> ru_inn('7830002293') # Valid 10-digit INN 

17 True 

18 >>> ru_inn('1234567890') # Invalid INN 

19 ValidationError(func=ru_inn, args={'value': '1234567890'}) 

20 

21 Args: 

22 value: Russian INN string to validate. Can contain only digits. 

23 

24 Returns: 

25 (Literal[True]): If `value` is a valid Russian INN. 

26 (ValidationError): If `value` is an invalid Russian INN. 

27 

28 Note: 

29 The validation follows the official algorithm: 

30 - For 10-digit INN: checks 10th control digit 

31 - For 12-digit INN: checks both 11th and 12th control digits 

32 """ 

33 if not value: 

34 return False 

35 

36 try: 

37 digits = list(map(int, value)) 

38 # company 

39 if len(digits) == 10: 

40 weight_coefs = [2, 4, 10, 3, 5, 9, 4, 6, 8, 0] 

41 control_number = sum([d * w for d, w in zip(digits, weight_coefs)]) % 11 

42 return ( 

43 (control_number % 10) == digits[-1] 

44 if control_number > 9 

45 else control_number == digits[-1] 

46 ) 

47 # person 

48 elif len(digits) == 12: 

49 weight_coefs1 = [7, 2, 4, 10, 3, 5, 9, 4, 6, 8, 0, 0] 

50 control_number1 = sum([d * w for d, w in zip(digits, weight_coefs1)]) % 11 

51 weight_coefs2 = [3, 7, 2, 4, 10, 3, 5, 9, 4, 6, 8, 0] 

52 control_number2 = sum([d * w for d, w in zip(digits, weight_coefs2)]) % 11 

53 return ( 

54 (control_number1 % 10) == digits[-2] 

55 if control_number1 > 9 

56 else control_number1 == digits[-2] and (control_number2 % 10) == digits[-1] 

57 if control_number2 > 9 

58 else control_number2 == digits[-1] 

59 ) 

60 else: 

61 return False 

62 except ValueError: 

63 return False