def imei(self) -> str:
"""Generate a random IMEI.
:return: IMEI.
"""
num = self.random.choice(IMEI_TACS)
num = num + str(self.random.randint(100000, 999999))
return num + luhn_checksum(num)
def credit_card_number(self, card_type: t.Optional[CardType] = None) -> str:
"""Generate a random credit card number.
:param card_type: Issuing Network. Default is Visa.
:return: Credit card number.
:raises NotImplementedError: if card_type not supported.
:Example:
4455 5299 1152 2450
"""
length = 16
regex = re.compile(r"(\d{4})(\d{4})(\d{4})(\d{4})")
if card_type is None:
card_type = get_random_item(CardType, rnd=self.random)
if card_type == CardType.VISA:
number = self.random.randint(4000, 4999)
elif card_type == CardType.MASTER_CARD:
number = self.random.choice(
[
self.random.randint(2221, 2720),
self.random.randint(5100, 5599),
]
)
elif card_type == CardType.AMERICAN_EXPRESS:
number = self.random.choice([34, 37])
length = 15
regex = re.compile(r"(\d{4})(\d{6})(\d{5})")
else:
raise NonEnumerableError(CardType)
str_num = str(number)
while len(str_num) < length - 1:
str_num += self.random.choice(string.digits)
groups = regex.search( # type: ignore
str_num + luhn_checksum(str_num),
).groups()
card = " ".join(groups)
return card
def test_luhn_checksum(number, check_sum):
assert shortcuts.luhn_checksum(number) == check_sum
