"""simple docstring"""
import json
import os
import tempfile
import unittest
import unittest.mock as mock
from pathlib import Path

from requests.exceptions import HTTPError

from transformers.utils import (
    CONFIG_NAME,
    FLAX_WEIGHTS_NAME,
    TF2_WEIGHTS_NAME,
    TRANSFORMERS_CACHE,
    WEIGHTS_NAME,
    cached_file,
    get_file_from_repo,
    has_file,
)


lowercase__ 	=     'hf-internal-testing/tiny-random-bert'
lowercase__ 	=     os.path.join(TRANSFORMERS_CACHE, 'models--hf-internal-testing--tiny-random-bert')
lowercase__ 	=     '9b8c223d42b2188cb49d29af482996f9d0f3e5a6'




class        __snake_case	(					unittest.TestCase    ):



      def   lowerCamelCase_       (						self)     ->      List[Any]:





        '''simple docstring'''





        a__:					Dict      							=     cached_file(lowercase   ,      lowercase)
        # Should have downloaded the file in here
        self.assertTrue(os.path.isdir(lowercase))
        # Cache should contain at least those three subfolders:
        for subfolder in ["blobs", "refs", "snapshots"]:
          self.assertTrue(os.path.isdir(os.path.join(lowercase   ,      lowercase)))
        with open(os.path.join(lowercase   ,      'refs'   ,      'main')) as f:
          a__:					List[Any]      							=     f.read()
        self.assertEqual(lowercase   ,      os.path.join(lowercase   ,      'snapshots'   ,      lowercase   ,      lowercase))
        self.assertTrue(os.path.isfile(lowercase))

        # File is cached at the same place the second time.
        a__:					Any      							=     cached_file(lowercase   ,      lowercase)
        self.assertEqual(lowercase   ,      lowercase)

        # Using a specific revision to test the full commit hash.
        a__:					Optional[Any]      							=     cached_file(lowercase   ,      lowercase   ,      revision='9b8c223')
        self.assertEqual(lowercase   ,      os.path.join(lowercase   ,      'snapshots'   ,      lowercase   ,      lowercase))



      def   lowerCamelCase_       (						self)     ->      str:





        '''simple docstring'''





        with self.assertRaisesRegex(lowercase   ,      'is not a valid model identifier'):
          a__:					List[Any]      							=     cached_file('tiny-random-bert'   ,      lowercase)

        with self.assertRaisesRegex(lowercase   ,      'is not a valid git identifier'):
          a__:					Optional[Any]      							=     cached_file(lowercase   ,      lowercase   ,      revision='aaaa')

        with self.assertRaisesRegex(lowercase   ,      'does not appear to have a file named'):
          a__:					Union[str, Any]      							=     cached_file(lowercase   ,      'conf')



      def   lowerCamelCase_       (						self)     ->      Union[str, Any]:





        '''simple docstring'''





        with self.assertRaisesRegex(lowercase   ,      'does not appear to have a file named'):
          a__:					Any      							=     cached_file(lowercase   ,      'conf')

        with open(os.path.join(lowercase   ,      'refs'   ,      'main')) as f:
          a__:					Optional[int]      							=     f.read()
        self.assertTrue(os.path.isfile(os.path.join(lowercase   ,      '.no_exist'   ,      lowercase   ,      'conf')))

        a__:					Union[str, Any]      							=     cached_file(lowercase   ,      'conf'   ,      _raise_exceptions_for_missing_entries=lowercase)
        self.assertIsNone(lowercase)

        a__:					str      							=     cached_file(lowercase   ,      'conf'   ,      local_files_only=lowercase   ,      _raise_exceptions_for_missing_entries=lowercase)
        self.assertIsNone(lowercase)

        a__:					Dict      							=     mock.Mock()
        a__:					str      							=     5_00
        a__:					Dict      							=     {}
        a__:					int      							=     HTTPError
        a__:					Dict      							=     {}

        # Under the mock environment we get a 500 error when trying to reach the tokenizer.
        with mock.patch('requests.Session.request'   ,      return_value=lowercase) as mock_head:
          a__:					Any      							=     cached_file(lowercase   ,      'conf'   ,      _raise_exceptions_for_connection_errors=lowercase)
          self.assertIsNone(lowercase)
          # This check we did call the fake head request
          mock_head.assert_called()



      def   lowerCamelCase_       (						self)     ->      Dict:





        '''simple docstring'''





        self.assertTrue(has_file('hf-internal-testing/tiny-bert-pt-only'   ,      lowercase))
        self.assertFalse(has_file('hf-internal-testing/tiny-bert-pt-only'   ,      lowercase))
        self.assertFalse(has_file('hf-internal-testing/tiny-bert-pt-only'   ,      lowercase))



      def   lowerCamelCase_       (						self)     ->      int:





        '''simple docstring'''





        self.assertIsNone(get_file_from_repo('bert-base-cased'   ,      'ahah.txt'))

        # The function raises if the repository does not exist.
        with self.assertRaisesRegex(lowercase   ,      'is not a valid model identifier'):
          get_file_from_repo('bert-base-case'   ,      lowercase)

        # The function raises if the revision does not exist.
        with self.assertRaisesRegex(lowercase   ,      'is not a valid git identifier'):
          get_file_from_repo('bert-base-cased'   ,      lowercase   ,      revision='ahaha')

        a__:					Tuple      							=     get_file_from_repo('bert-base-cased'   ,      lowercase)
        # The name is the cached name which is not very easy to test, so instead we load the content.
        a__:					str      							=     json.loads(open(lowercase   ,      'r').read())
        self.assertEqual(config['hidden_size']   ,      7_68)



      def   lowerCamelCase_       (						self)     ->      List[str]:





        '''simple docstring'''





        with tempfile.TemporaryDirectory() as tmp_dir:
          a__:					int      							=     Path(lowercase) / 'a.txt'
          filename.touch()
          self.assertEqual(get_file_from_repo(lowercase   ,      'a.txt')   ,      str(lowercase))

          self.assertIsNone(get_file_from_repo(lowercase   ,      'b.txt'))



"""simple docstring"""
def 						__a       (     _SCREAMING_SNAKE_CASE       )     ->bool:
  return credit_card_number.startswith(('34', '35', '37', '4', '5', '6')       )







def 						__a       (     _SCREAMING_SNAKE_CASE       )     ->bool:
  a__:					Any      							=     credit_card_number
  a__:					Tuple      							=     0
  a__:					List[str]      							=     len(_SCREAMING_SNAKE_CASE       ) - 2
  for i in range(_SCREAMING_SNAKE_CASE		,					-1		,					-2       ):
    #  double the value of every second digit
    a__:					Tuple      							=     int(cc_number[i]       )
    digit *= 2
    # If doubling of a number results in a two digit number
    # i.e greater than 9(e.g., 6 × 2 = 12),
    # then add the digits of the product (e.g., 12: 1 + 2 = 3, 15: 1 + 5 = 6),
    # to get a single digit number.
    if digit > 9:
      digit %= 10
      digit += 1
    a__:					Optional[Any]      							=     cc_number[:i] + str(_SCREAMING_SNAKE_CASE       ) + cc_number[i + 1 :]
    total += digit

  # Sum up the remaining digits
  for i in range(len(_SCREAMING_SNAKE_CASE       ) - 1		,					-1		,					-2       ):
    total += int(cc_number[i]       )

  return total % 10 == 0







def 						__a       (     _SCREAMING_SNAKE_CASE       )     ->bool:
  a__:					Optional[int]      							=     F'{credit_card_number} is an invalid credit card number because'
  if not credit_card_number.isdigit():
    print(F'{error_message} it has nonnumerical characters.'       )
    return False

  if not 13 <= len(_SCREAMING_SNAKE_CASE       ) <= 16:
    print(F'{error_message} of its length.'       )
    return False

  if not validate_initial_digits(_SCREAMING_SNAKE_CASE       ):
    print(F'{error_message} of its first two digits.'       )
    return False

  if not luhn_validation(_SCREAMING_SNAKE_CASE       ):
    print(F'{error_message} it fails the Luhn check.'       )
    return False

  print(F'{credit_card_number} is a valid credit card number.'       )
  return True


if __name__ == "__main__":
 import doctest

 doctest.testmod()
 validate_credit_card_number('4111111111111111')
 validate_credit_card_number('32323')


