def test_valid_luhn(self):
"""
Tests if the number has a valid check digit
Example from wiki https://en.wikipedia.org/wiki/Luhn_algorithm
"""
assert luhn_checksum("79927398713") == 0
def test_invalid_luhn(self):
"""
Tests a number with an invalid check digit
Example from wiki https://en.wikipedia.org/wiki/Luhn_algorithm
"""
assert luhn_checksum("79927398714") != 0
def test_valid_luhn(self):
for aadhaar_id in self.aadhaar_ids:
assert luhn_checksum(aadhaar_id) == 0
