
import json
import os
import unittest

from transformers import MgpstrTokenizer
from transformers.models.mgp_str.tokenization_mgp_str import VOCAB_FILES_NAMES
from transformers.testing_utils import require_tokenizers

from ...test_tokenization_common import TokenizerTesterMixin



@require_tokenizers
class       _snake_case   (	UpperCAmelCase_  ,						unittest.TestCase							):
 __lowerCAmelCase  :     Optional[int]        =			MgpstrTokenizer
 __lowerCAmelCase  :     Dict        =			False
 __lowerCAmelCase  :     List[Any]        =			{}
 __lowerCAmelCase  :     Optional[Any]        =			False


 def      lowercase__     (					self):


   '''simple docstring'''




   super().setUp()

   # fmt: off
   lowercase__  :   str    		=      ["""[GO]""", """[s]""", """0""", """1""", """2""", """3""", """4""", """5""", """6""", """7""", """8""", """9""", """a""", """b""", """c""", """d""", """e""", """f""", """g""", """h""", """i""", """j""", """k""", """l""", """m""", """n""", """o""", """p""", """q""", """r""", """s""", """t""", """u""", """v""", """w""", """x""", """y""", """z"""]
   # fmt: on
   lowercase__  :   int    		=      dict(zip(SCREAMING_SNAKE_CASE_					,  range(len(SCREAMING_SNAKE_CASE_))))

   lowercase__  :   Any    		=      os.path.join(self.tmpdirname					,  VOCAB_FILES_NAMES["""vocab_file"""])
   with open(self.vocab_file					,  """w"""					,  encoding="""utf-8""") as fp:
     fp.write(json.dumps(SCREAMING_SNAKE_CASE_) + """\n""")


 def      lowercase__     (					self					,  **SCREAMING_SNAKE_CASE_):


   '''simple docstring'''




   return MgpstrTokenizer.from_pretrained(self.tmpdirname					,  **SCREAMING_SNAKE_CASE_)


 def      lowercase__     (					self					,  SCREAMING_SNAKE_CASE_):


   '''simple docstring'''




   lowercase__  :   int    		=      """tester"""
   lowercase__  :   List[Any]    		=      """tester"""
   return input_text, output_text


 @unittest.skip("""MGP-STR always lower cases letters.""")
 def      lowercase__     (					self):


   '''simple docstring'''




   pass


 def      lowercase__     (					self):


   '''simple docstring'''




   lowercase__  :   int    		=      self.get_tokenizers(do_lower_case=SCREAMING_SNAKE_CASE_)
   for tokenizer in tokenizers:
     with self.subTest(f'{tokenizer.__class__.__name__}'):
       lowercase__  :   Any    		=      """[SPECIAL_TOKEN]"""

       tokenizer.add_special_tokens({"""cls_token""": special_token})
       lowercase__  :   int    		=      tokenizer.encode([special_token]					,  add_special_tokens=SCREAMING_SNAKE_CASE_)
       self.assertEqual(len(SCREAMING_SNAKE_CASE_)					,  1)

       lowercase__  :   Union[str, Any]    		=      tokenizer.decode(SCREAMING_SNAKE_CASE_					,  skip_special_tokens=SCREAMING_SNAKE_CASE_)
       self.assertTrue(special_token not in decoded)


 def      lowercase__     (					self):


   '''simple docstring'''




   lowercase__  :   List[Any]    		=      self.get_tokenizers()
   for tokenizer in tokenizers:
     with self.subTest(f'{tokenizer.__class__.__name__}'):
       lowercase__  :   Optional[Any]    		=      self.get_input_output_texts(SCREAMING_SNAKE_CASE_)

       lowercase__  :   str    		=      tokenizer.tokenize(SCREAMING_SNAKE_CASE_)
       lowercase__  :   Dict    		=      tokenizer.convert_tokens_to_ids(SCREAMING_SNAKE_CASE_)
       lowercase__  :   Optional[int]    		=      tokenizer.encode(SCREAMING_SNAKE_CASE_					,  add_special_tokens=SCREAMING_SNAKE_CASE_)
       self.assertListEqual(SCREAMING_SNAKE_CASE_					,  SCREAMING_SNAKE_CASE_)

       lowercase__  :   Dict    		=      tokenizer.convert_ids_to_tokens(SCREAMING_SNAKE_CASE_)
       self.assertNotEqual(len(SCREAMING_SNAKE_CASE_)					,  0)
       lowercase__  :   Dict    		=      tokenizer.decode(SCREAMING_SNAKE_CASE_)
       self.assertIsInstance(SCREAMING_SNAKE_CASE_					,  SCREAMING_SNAKE_CASE_)

       self.assertEqual(text_a.replace(""" """					,  """""")					,  SCREAMING_SNAKE_CASE_)


 @unittest.skip("""MGP-STR tokenizer only handles one sequence.""")
 def      lowercase__     (					self):


   '''simple docstring'''




   pass



 @unittest.skip("""inputs cannot be pretokenized in MgpstrTokenizer""")
 def      lowercase__     (					self):


   '''simple docstring'''




   pass






from __future__ import annotations

from collections.abc import Iterator
from typing import Any



class       _snake_case   :


 def __init__(					self					,  SCREAMING_SNAKE_CASE_):


   '''simple docstring'''




   lowercase__  :   Any    		=      data
   lowercase__  :   Node | None    		=      None



class       _snake_case   :


 def __init__(					self):


   '''simple docstring'''




   lowercase__  :   List[Any]    		=      None
   lowercase__  :   int    		=      None


 def __iter__(					self):


   '''simple docstring'''




   lowercase__  :   List[str]    		=      self.head
   while self.head:
     yield node.data
     lowercase__  :   str    		=      node.next
     if node == self.head:
       break


 def __len__(					self):


   '''simple docstring'''




   return sum(1 for _ in self)


 def __repr__(					self):


   '''simple docstring'''




   return "->".join(str(SCREAMING_SNAKE_CASE_) for item in iter(self))


 def      lowercase__     (					self					,  SCREAMING_SNAKE_CASE_):


   '''simple docstring'''




   self.insert_nth(len(self)					,  SCREAMING_SNAKE_CASE_)


 def      lowercase__     (					self					,  SCREAMING_SNAKE_CASE_):


   '''simple docstring'''




   self.insert_nth(0					,  SCREAMING_SNAKE_CASE_)


 def      lowercase__     (					self					,  SCREAMING_SNAKE_CASE_					,  SCREAMING_SNAKE_CASE_):


   '''simple docstring'''




   if index < 0 or index > len(self):
     raise IndexError("""list index out of range.""")
   lowercase__  :   Optional[int]    		=      Node(SCREAMING_SNAKE_CASE_)
   if self.head is None:
     lowercase__  :   Union[str, Any]    		=      new_node  # first node points itself
     lowercase__  :   Dict    		=      new_node
   elif index == 0:  # insert at head
     lowercase__  :   int    		=      self.head
     lowercase__  :   int    		=      new_node
   else:
     lowercase__  :   List[str]    		=      self.head
     for _ in range(index - 1):
       lowercase__  :   Union[str, Any]    		=      temp.next
     lowercase__  :   int    		=      temp.next
     lowercase__  :   Optional[Any]    		=      new_node
     if index == len(self) - 1:  # insert at tail
       lowercase__  :   Union[str, Any]    		=      new_node


 def      lowercase__     (					self):


   '''simple docstring'''




   return self.delete_nth(0)


 def      lowercase__     (					self):


   '''simple docstring'''




   return self.delete_nth(len(self) - 1)


 def      lowercase__     (					self					,  SCREAMING_SNAKE_CASE_ = 0):


   '''simple docstring'''




   if not 0 <= index < len(self):
     raise IndexError("""list index out of range.""")
   lowercase__  :   str    		=      self.head
   if self.head == self.tail:  # just one node
     lowercase__  :   List[Any]    		=      None
   elif index == 0:  # delete head node
     lowercase__  :   str    		=      self.tail.next.next
     lowercase__  :   List[Any]    		=      self.head.next
   else:
     lowercase__  :   Optional[int]    		=      self.head
     for _ in range(index - 1):
       lowercase__  :   List[Any]    		=      temp.next
     lowercase__  :   Optional[Any]    		=      temp.next
     lowercase__  :   Dict    		=      temp.next.next
     if index == len(self) - 1:  # delete at tail
       lowercase__  :   Tuple    		=      temp
   return delete_node.data



 def      lowercase__     (					self):


   '''simple docstring'''




   return len(self) == 0

def 		UpperCamelCase	(      )		->	None:


  '''simple docstring'''






  lowercase__  :   int    		=      CircularLinkedList()
  assert len(lowercase_   ) == 0
  assert circular_linked_list.is_empty() is True
  assert str(lowercase_   ) == ""

  try:
    circular_linked_list.delete_front()
    raise AssertionError  # This should not happen
  except IndexError:
    assert True  # This should happen

  try:
    circular_linked_list.delete_tail()
    raise AssertionError  # This should not happen
  except IndexError:
    assert True  # This should happen

  try:
    circular_linked_list.delete_nth(-1   )
    raise AssertionError
  except IndexError:
    assert True

  try:
    circular_linked_list.delete_nth(0   )
    raise AssertionError
  except IndexError:
    assert True

  assert circular_linked_list.is_empty() is True
  for i in range(5   ):
    assert len(lowercase_   ) == i
    circular_linked_list.insert_nth(lowercase_ , i + 1   )
  assert str(lowercase_   ) == "->".join(str(lowercase_   ) for i in range(1 , 6   )   )

  circular_linked_list.insert_tail(6   )
  assert str(lowercase_   ) == "->".join(str(lowercase_   ) for i in range(1 , 7   )   )
  circular_linked_list.insert_head(0   )
  assert str(lowercase_   ) == "->".join(str(lowercase_   ) for i in range(0 , 7   )   )

  assert circular_linked_list.delete_front() == 0
  assert circular_linked_list.delete_tail() == 6
  assert str(lowercase_   ) == "->".join(str(lowercase_   ) for i in range(1 , 6   )   )
  assert circular_linked_list.delete_nth(2   ) == 3

  circular_linked_list.insert_nth(2 , 3   )
  assert str(lowercase_   ) == "->".join(str(lowercase_   ) for i in range(1 , 6   )   )

  assert circular_linked_list.is_empty() is False


if __name__ == "__main__":
     import doctest

     doctest.testmod()






