




'''simple docstring'''





import itertools
import json
import os
import unittest

from transformers import AddedToken, RobertaTokenizer, RobertaTokenizerFast
from transformers.models.roberta.tokenization_roberta import VOCAB_FILES_NAMES
from transformers.testing_utils import require_tokenizers, slow

from ...test_tokenization_common import TokenizerTesterMixin
@require_tokenizers
class     a__					(      UpperCAmelCase_				,       unittest.TestCase   ):
						_a							:					Dict      =					RobertaTokenizer
						_a							:					Union[str, Any]      =					RobertaTokenizerFast
						_a							:					List[str]      =					True
						_a							:					List[Any]      =					{'cls_token': '<s>'}






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											super().setUp()

											# Adapted from Sennrich et al. 2015 and https://github.com/rsennrich/subword-nmt
											__lowerCAmelCase            = [
											    'l',
											    'o',
											    'w',
											    'e',
											    'r',
											    's',
											    't',
											    'i',
											    'd',
											    'n',
											    '\u0120',
											    '\u0120l',
											    '\u0120n',
											    '\u0120lo',
											    '\u0120low',
											    'er',
											    '\u0120lowest',
											    '\u0120newer',
											    '\u0120wider',
											    '<unk>',
											]
											__lowerCAmelCase            = dict(zip(_lowercase	,    range(len(_lowercase    )    )    )    )
											__lowerCAmelCase            = ['#version: 0.2', '\u0120 l', '\u0120l o', '\u0120lo w', 'e r', '']
											__lowerCAmelCase            = {'unk_token': '<unk>'}

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






						def        __SCREAMING_SNAKE_CASE(     self	,    **_A    ):




											"""simple docstring"""



											kwargs.update(self.special_tokens_map    )
											return self.tokenizer_class.from_pretrained(self.tmpdirname	,    **_lowercase    )






						def        __SCREAMING_SNAKE_CASE(     self	,    **_A    ):




											"""simple docstring"""



											kwargs.update(self.special_tokens_map    )
											return RobertaTokenizerFast.from_pretrained(self.tmpdirname	,    **_lowercase    )






						def        __SCREAMING_SNAKE_CASE(     self	,    _A    ):




											"""simple docstring"""



											__lowerCAmelCase            = 'lower newer'
											__lowerCAmelCase            = 'lower newer'
											return input_text, output_text






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											__lowerCAmelCase            = self.tokenizer_class(self.vocab_file	,    self.merges_file	,    **self.special_tokens_map    )
											__lowerCAmelCase            = 'lower newer'
											__lowerCAmelCase            = ['l', 'o', 'w', 'er', '\u0120', 'n', 'e', 'w', 'er']
											__lowerCAmelCase            = tokenizer.tokenize(_lowercase    )  # , add_prefix_space=True)
											self.assertListEqual(_lowercase	,    _lowercase    )

											__lowerCAmelCase            = tokens + [tokenizer.unk_token]
											__lowerCAmelCase            = [0, 1, 2, 1_5, 1_0, 9, 3, 2, 1_5, 1_9]
											self.assertListEqual(tokenizer.convert_tokens_to_ids(_lowercase    )	,    _lowercase    )






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											__lowerCAmelCase            = self.get_tokenizer()

											self.assertListEqual(tokenizer.encode("Hello world!"	,    add_special_tokens=_lowercase    )	,    [0, 3_1_4_1_4, 2_3_2, 3_2_8, 2]    )
											self.assertListEqual(
											    tokenizer.encode("Hello world! cécé herlolip 418"	,    add_special_tokens=_lowercase    )	,    [0, 3_1_4_1_4, 2_3_2, 3_2_8, 7_4_0, 1_1_4_0, 1_2_6_9_5, 6_9, 4_6_0_7_8, 1_5_8_8, 2]	,    )






						@slow
						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											__lowerCAmelCase            = self.tokenizer_class.from_pretrained("roberta-base"    )

											__lowerCAmelCase            = tokenizer.encode("sequence builders"	,    add_special_tokens=_lowercase    )
											__lowerCAmelCase            = tokenizer.encode("multi-sequence build"	,    add_special_tokens=_lowercase    )

											__lowerCAmelCase            = tokenizer.encode(
											    "sequence builders"	,    add_special_tokens=_lowercase	,    add_prefix_space=_lowercase    )
											__lowerCAmelCase            = tokenizer.encode(
											    "sequence builders"	,    "multi-sequence build"	,    add_special_tokens=_lowercase	,    add_prefix_space=_lowercase    )

											__lowerCAmelCase            = tokenizer.build_inputs_with_special_tokens(_lowercase    )
											__lowerCAmelCase            = tokenizer.build_inputs_with_special_tokens(_lowercase	,    _lowercase    )

											assert encoded_sentence == encoded_text_from_decode
											assert encoded_pair == encoded_pair_from_decode






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											__lowerCAmelCase            = self.get_tokenizer()

											__lowerCAmelCase            = 'Encode this sequence.'
											__lowerCAmelCase            = tokenizer.byte_encoder[' '.encode("utf-8"    )[0]]

											# Testing encoder arguments
											__lowerCAmelCase            = tokenizer.encode(_lowercase	,    add_special_tokens=_lowercase	,    add_prefix_space=_lowercase    )
											__lowerCAmelCase            = tokenizer.convert_ids_to_tokens(encoded[0]    )[0]
											self.assertNotEqual(_lowercase	,    _lowercase    )

											__lowerCAmelCase            = tokenizer.encode(_lowercase	,    add_special_tokens=_lowercase	,    add_prefix_space=_lowercase    )
											__lowerCAmelCase            = tokenizer.convert_ids_to_tokens(encoded[0]    )[0]
											self.assertEqual(_lowercase	,    _lowercase    )

											tokenizer.add_special_tokens({"bos_token": "<s>"}    )
											__lowerCAmelCase            = tokenizer.encode(_lowercase	,    add_special_tokens=_lowercase    )
											__lowerCAmelCase            = tokenizer.convert_ids_to_tokens(encoded[1]    )[0]
											self.assertNotEqual(_lowercase	,    _lowercase    )

											# Testing spaces after special tokens
											__lowerCAmelCase            = '<mask>'
											tokenizer.add_special_tokens(
											    {"mask_token": AddedToken(_lowercase	,    lstrip=_lowercase	,    rstrip=_lowercase    )}    )  # mask token has a left space
											__lowerCAmelCase            = tokenizer.convert_tokens_to_ids(_lowercase    )

											__lowerCAmelCase            = 'Encode <mask> sequence'
											__lowerCAmelCase            = 'Encode <mask>sequence'

											__lowerCAmelCase            = tokenizer.encode(_lowercase    )
											__lowerCAmelCase            = encoded.index(_lowercase    )
											__lowerCAmelCase            = tokenizer.convert_ids_to_tokens(encoded[mask_loc + 1]    )[0]
											self.assertEqual(_lowercase	,    _lowercase    )

											__lowerCAmelCase            = tokenizer.encode(_lowercase    )
											__lowerCAmelCase            = encoded.index(_lowercase    )
											__lowerCAmelCase            = tokenizer.convert_ids_to_tokens(encoded[mask_loc + 1]    )[0]
											self.assertNotEqual(_lowercase	,    _lowercase    )






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											pass






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											for tokenizer, pretrained_name, kwargs in self.tokenizers_list:
																with self.subTest(f"""{tokenizer.__class__.__name__} ({pretrained_name})"""    ):
																					__lowerCAmelCase            = self.rust_tokenizer_class.from_pretrained(_lowercase	,    **_lowercase    )
																					__lowerCAmelCase            = self.tokenizer_class.from_pretrained(_lowercase	,    **_lowercase    )
																					__lowerCAmelCase            = 'A, <mask> AllenNLP sentence.'
																					__lowerCAmelCase            = tokenizer_r.encode_plus(_lowercase	,    add_special_tokens=_lowercase	,    return_token_type_ids=_lowercase    )
																					__lowerCAmelCase            = tokenizer_p.encode_plus(_lowercase	,    add_special_tokens=_lowercase	,    return_token_type_ids=_lowercase    )

																					# token_type_ids should put 0 everywhere
																					self.assertEqual(sum(tokens_r["token_type_ids"]    )	,    sum(tokens_p["token_type_ids"]    )    )

																					# attention_mask should put 1 everywhere, so sum over length should be 1
																					self.assertEqual(
																					    sum(tokens_r["attention_mask"]    ) / len(tokens_r["attention_mask"]    )	,    sum(tokens_p["attention_mask"]    ) / len(tokens_p["attention_mask"]    )	,    )

																					__lowerCAmelCase            = tokenizer_r.convert_ids_to_tokens(tokens_r["input_ids"]    )
																					__lowerCAmelCase            = tokenizer_p.convert_ids_to_tokens(tokens_p["input_ids"]    )

																					# Rust correctly handles the space before the mask while python doesnt
																					self.assertSequenceEqual(tokens_p["input_ids"]	,    [0, 2_5_0, 6, 5_0_2_6_4, 3_8_2_3, 4_8_7, 2_1_9_9_2, 3_6_4_5, 4, 2]    )
																					self.assertSequenceEqual(tokens_r["input_ids"]	,    [0, 2_5_0, 6, 5_0_2_6_4, 3_8_2_3, 4_8_7, 2_1_9_9_2, 3_6_4_5, 4, 2]    )

																					self.assertSequenceEqual(
																					    _lowercase	,    ["<s>", "A", ",", "<mask>", "ĠAllen", "N", "LP", "Ġsentence", ".", "</s>"]    )
																					self.assertSequenceEqual(
																					    _lowercase	,    ["<s>", "A", ",", "<mask>", "ĠAllen", "N", "LP", "Ġsentence", ".", "</s>"]    )






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											for trim_offsets, add_prefix_space in itertools.product([True, False]	,    repeat=2    ):
																__lowerCAmelCase            = self.rust_tokenizer_class.from_pretrained(
																    self.tmpdirname	,    use_fast=_lowercase	,    add_prefix_space=_lowercase	,    trim_offsets=_lowercase    )

																__lowerCAmelCase            = json.loads(tokenizer_r.backend_tokenizer.pre_tokenizer.__getstate__()    )
																__lowerCAmelCase            = json.loads(tokenizer_r.backend_tokenizer.post_processor.__getstate__()    )

																self.assertEqual(pre_tokenizer_state["add_prefix_space"]	,    _lowercase    )

																self.assertEqual(post_processor_state["add_prefix_space"]	,    _lowercase    )
																self.assertEqual(post_processor_state["trim_offsets"]	,    _lowercase    )






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											for tokenizer, pretrained_name, kwargs in self.tokenizers_list:
																with self.subTest(f"""{tokenizer.__class__.__name__} ({pretrained_name})"""    ):
																					__lowerCAmelCase            = 'hello'  # `hello` is a token in the vocabulary of `pretrained_name`
																					__lowerCAmelCase            = f"""{text_of_1_token} {text_of_1_token}"""

																					__lowerCAmelCase            = self.rust_tokenizer_class.from_pretrained(
																					    _lowercase	,    use_fast=_lowercase	,    add_prefix_space=_lowercase	,    trim_offsets=_lowercase    )
																					__lowerCAmelCase            = tokenizer_r(_lowercase	,    return_offsets_mapping=_lowercase	,    add_special_tokens=_lowercase    )
																					self.assertEqual(encoding.offset_mapping[0]	,    (0, len(_lowercase    ))    )
																					self.assertEqual(
																					    encoding.offset_mapping[1]	,    (len(_lowercase    ) + 1, len(_lowercase    ) + 1 + len(_lowercase    ))	,    )

																					__lowerCAmelCase            = self.rust_tokenizer_class.from_pretrained(
																					    _lowercase	,    use_fast=_lowercase	,    add_prefix_space=_lowercase	,    trim_offsets=_lowercase    )
																					__lowerCAmelCase            = tokenizer_r(_lowercase	,    return_offsets_mapping=_lowercase	,    add_special_tokens=_lowercase    )
																					self.assertEqual(encoding.offset_mapping[0]	,    (0, len(_lowercase    ))    )
																					self.assertEqual(
																					    encoding.offset_mapping[1]	,    (len(_lowercase    ) + 1, len(_lowercase    ) + 1 + len(_lowercase    ))	,    )

																					__lowerCAmelCase            = self.rust_tokenizer_class.from_pretrained(
																					    _lowercase	,    use_fast=_lowercase	,    add_prefix_space=_lowercase	,    trim_offsets=_lowercase    )
																					__lowerCAmelCase            = tokenizer_r(_lowercase	,    return_offsets_mapping=_lowercase	,    add_special_tokens=_lowercase    )
																					self.assertEqual(encoding.offset_mapping[0]	,    (0, len(_lowercase    ))    )
																					self.assertEqual(
																					    encoding.offset_mapping[1]	,    (len(_lowercase    ), len(_lowercase    ) + 1 + len(_lowercase    ))	,    )

																					__lowerCAmelCase            = self.rust_tokenizer_class.from_pretrained(
																					    _lowercase	,    use_fast=_lowercase	,    add_prefix_space=_lowercase	,    trim_offsets=_lowercase    )
																					__lowerCAmelCase            = tokenizer_r(_lowercase	,    return_offsets_mapping=_lowercase	,    add_special_tokens=_lowercase    )
																					self.assertEqual(encoding.offset_mapping[0]	,    (0, len(_lowercase    ))    )
																					self.assertEqual(
																					    encoding.offset_mapping[1]	,    (len(_lowercase    ), len(_lowercase    ) + 1 + len(_lowercase    ))	,    )

																					__lowerCAmelCase            = f""" {text}"""

																					# tokenizer_r = self.rust_tokenizer_class.from_pretrained(
																					#     pretrained_name, use_fast=True, add_prefix_space=True, trim_offsets=True
																					# )
																					# encoding = tokenizer_r(text, return_offsets_mapping=True, add_special_tokens=False)
																					# self.assertEqual(encoding.offset_mapping[0], (1, 1 + len(text_of_1_token)))
																					# self.assertEqual(
																					#     encoding.offset_mapping[1],
																					#     (1 + len(text_of_1_token) + 1, 1 + len(text_of_1_token) + 1 + len(text_of_1_token)),
																					# )

																					__lowerCAmelCase            = self.rust_tokenizer_class.from_pretrained(
																					    _lowercase	,    use_fast=_lowercase	,    add_prefix_space=_lowercase	,    trim_offsets=_lowercase    )
																					__lowerCAmelCase            = tokenizer_r(_lowercase	,    return_offsets_mapping=_lowercase	,    add_special_tokens=_lowercase    )
																					self.assertEqual(encoding.offset_mapping[0]	,    (1, 1 + len(_lowercase    ))    )
																					self.assertEqual(
																					    encoding.offset_mapping[1]	,    (1 + len(_lowercase    ) + 1, 1 + len(_lowercase    ) + 1 + len(_lowercase    ))	,    )

																					__lowerCAmelCase            = self.rust_tokenizer_class.from_pretrained(
																					    _lowercase	,    use_fast=_lowercase	,    add_prefix_space=_lowercase	,    trim_offsets=_lowercase    )
																					__lowerCAmelCase            = tokenizer_r(_lowercase	,    return_offsets_mapping=_lowercase	,    add_special_tokens=_lowercase    )
																					self.assertEqual(encoding.offset_mapping[0]	,    (0, 1 + len(_lowercase    ))    )
																					self.assertEqual(
																					    encoding.offset_mapping[1]	,    (1 + len(_lowercase    ), 1 + len(_lowercase    ) + 1 + len(_lowercase    ))	,    )

																					__lowerCAmelCase            = self.rust_tokenizer_class.from_pretrained(
																					    _lowercase	,    use_fast=_lowercase	,    add_prefix_space=_lowercase	,    trim_offsets=_lowercase    )
																					__lowerCAmelCase            = tokenizer_r(_lowercase	,    return_offsets_mapping=_lowercase	,    add_special_tokens=_lowercase    )
																					self.assertEqual(encoding.offset_mapping[0]	,    (0, 1 + len(_lowercase    ))    )
																					self.assertEqual(
																					    encoding.offset_mapping[1]	,    (1 + len(_lowercase    ), 1 + len(_lowercase    ) + 1 + len(_lowercase    ))	,    )










from __future__ import annotations

from collections.abc import Iterator
from typing import Any
class     a__					:






						def __init__(     self	,    _A    ):




											"""simple docstring"""



											__lowerCAmelCase            = data
											__lowerCAmelCase            = None






class     a__					:






						def __init__(     self    ):




											"""simple docstring"""



											__lowerCAmelCase            = None
											__lowerCAmelCase            = None






						def __iter__(     self    ):




											"""simple docstring"""



											__lowerCAmelCase            = self.head
											while self.head:
																yield node.data
																__lowerCAmelCase            = 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(_A    ) for item in iter(self    )    )






						def        __SCREAMING_SNAKE_CASE(     self	,    _A    ):




											"""simple docstring"""



											self.insert_nth(len(self    )	,    _A    )






						def        __SCREAMING_SNAKE_CASE(     self	,    _A    ):




											"""simple docstring"""



											self.insert_nth(0	,    _A    )






						def        __SCREAMING_SNAKE_CASE(     self	,    _A	,    _A    ):




											"""simple docstring"""



											if index < 0 or index > len(self    ):
																raise IndexError("list index out of range."    )
											__lowerCAmelCase            = Node(_A    )
											if self.head is None:
																__lowerCAmelCase            = new_node  # first node points itself
																__lowerCAmelCase            = __lowerCAmelCase            = new_node
											elif index == 0:  # insert at head
																__lowerCAmelCase            = self.head
																__lowerCAmelCase            = __lowerCAmelCase            = new_node
											else:
																__lowerCAmelCase            = self.head
																for _ in range(index - 1    ):
																					__lowerCAmelCase            = temp.next
																__lowerCAmelCase            = temp.next
																__lowerCAmelCase            = new_node
																if index == len(self    ) - 1:  # insert at tail
																					__lowerCAmelCase            = new_node






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											return self.delete_nth(0    )






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



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






						def        __SCREAMING_SNAKE_CASE(     self	,    _A = 0    ):




											"""simple docstring"""



											if not 0 <= index < len(self    ):
																raise IndexError("list index out of range."    )
											__lowerCAmelCase            = self.head
											if self.head == self.tail:  # just one node
																__lowerCAmelCase            = __lowerCAmelCase            = None
											elif index == 0:  # delete head node
																__lowerCAmelCase            = self.tail.next.next
																__lowerCAmelCase            = self.head.next
											else:
																__lowerCAmelCase            = self.head
																for _ in range(index - 1    ):
																					__lowerCAmelCase            = temp.next
																__lowerCAmelCase            = temp.next
																__lowerCAmelCase            = temp.next.next
																if index == len(self    ) - 1:  # delete at tail
																					__lowerCAmelCase            = temp
											return delete_node.data






						def        __SCREAMING_SNAKE_CASE(     self    ):




											"""simple docstring"""



											return len(self    ) == 0







def 			_a   (		):
					__lowerCAmelCase            = CircularLinkedList()
					assert len(SCREAMING_SNAKE_CASE_  ) == 0
					assert circular_linked_list.is_empty() is True
					assert str(SCREAMING_SNAKE_CASE_  ) == ""

					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(SCREAMING_SNAKE_CASE_  ) == i
										circular_linked_list.insert_nth(SCREAMING_SNAKE_CASE_   ,   i + 1  )
					assert str(SCREAMING_SNAKE_CASE_  ) == "->".join(str(SCREAMING_SNAKE_CASE_  ) for i in range(1   ,   6  )  )

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

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

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

					assert circular_linked_list.is_empty() is False


if __name__ == "__main__":
					import doctest

					doctest.testmod()




