


import itertools
import json
import os
import unittest

from transformers import AddedToken, LongformerTokenizer, LongformerTokenizerFast
from transformers.models.longformer.tokenization_longformer import VOCAB_FILES_NAMES
from transformers.testing_utils import require_tokenizers, slow

from ...test_tokenization_common import TokenizerTesterMixin






@require_tokenizers
class      UpperCamelCase					(		lowercase__						,      unittest.TestCase     ):


   '''simple docstring'''







   lowercase					:	Tuple									=LongformerTokenizer
   lowercase					:	Any									=True
   lowercase					:	str									=LongformerTokenizerFast
   lowercase					:	Optional[int]									=True
   def 		UpperCamelCase  (     self		):
        super().setUp()

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

        lowercase_       :Union[str, Any]     =       os.path.join(self.tmpdirname   ,							VOCAB_FILES_NAMES['''vocab_file''']		)
        lowercase_       :int     =       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(UpperCamelCase_		) + '''\n'''		)
        with open(self.merges_file   ,							'''w'''   ,							encoding='''utf-8'''		) as fp:
             fp.write('''\n'''.join(UpperCamelCase_		)		)
   def 		UpperCamelCase  (     self   ,							**UpperCamelCase_		):
        kwargs.update(self.special_tokens_map		)
        return self.tokenizer_class.from_pretrained(self.tmpdirname   ,							**UpperCamelCase_		)
   def 		UpperCamelCase  (     self   ,							**UpperCamelCase_		):
        kwargs.update(self.special_tokens_map		)
        return self.rust_tokenizer_class.from_pretrained(self.tmpdirname   ,							**UpperCamelCase_		)
   def 		UpperCamelCase  (     self   ,							UpperCamelCase_		):
        lowercase_       :Tuple     =       '''lower newer'''
        lowercase_       :Optional[Any]     =       '''lower newer'''
        return input_text, output_text
   def 		UpperCamelCase  (     self		):
        lowercase_       :List[str]     =       self.tokenizer_class(self.vocab_file   ,							self.merges_file   ,							**self.special_tokens_map		)
        lowercase_       :Tuple     =       '''lower newer'''
        lowercase_       :Any     =       ['''l''', '''o''', '''w''', '''er''', '''\u0120''', '''n''', '''e''', '''w''', '''er''']
        lowercase_       :Optional[int]     =       tokenizer.tokenize(UpperCamelCase_		)  # , add_prefix_space=True)
        self.assertListEqual(UpperCamelCase_   ,							UpperCamelCase_		)

        lowercase_       :List[Any]     =       tokens + [tokenizer.unk_token]
        lowercase_       :Tuple     =       [0, 1, 2, 15, 10, 9, 3, 2, 15, 19]
        self.assertListEqual(tokenizer.convert_tokens_to_ids(UpperCamelCase_		)   ,							UpperCamelCase_		)
   def 		UpperCamelCase  (     self		):
        lowercase_       :str     =       self.get_tokenizer()

        self.assertListEqual(tokenizer.encode('''Hello world!'''   ,							add_special_tokens=UpperCamelCase_		)   ,							[0, 3_1414, 232, 328, 2]		)
        self.assertListEqual(
            tokenizer.encode('''Hello world! cécé herlolip 418'''   ,							add_special_tokens=UpperCamelCase_		)   ,							[0, 3_1414, 232, 328, 740, 1140, 1_2695, 69, 4_6078, 1588, 2]   ,							)
   @slow
   def 		UpperCamelCase  (     self		):
        lowercase_       :List[str]     =       self.tokenizer_class.from_pretrained('''allenai/longformer-base-4096'''		)

        lowercase_       :int     =       tokenizer.encode('''sequence builders'''   ,							add_special_tokens=UpperCamelCase_		)
        lowercase_       :Optional[Any]     =       tokenizer.encode('''multi-sequence build'''   ,							add_special_tokens=UpperCamelCase_		)

        lowercase_       :Tuple     =       tokenizer.encode(
            '''sequence builders'''   ,							add_special_tokens=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_		)
        lowercase_       :Union[str, Any]     =       tokenizer.encode(
            '''sequence builders'''   ,							'''multi-sequence build'''   ,							add_special_tokens=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_		)

        lowercase_       :Optional[Any]     =       tokenizer.build_inputs_with_special_tokens(UpperCamelCase_		)
        lowercase_       :str     =       tokenizer.build_inputs_with_special_tokens(UpperCamelCase_   ,							UpperCamelCase_		)

        assert encoded_sentence == encoded_text_from_decode
        assert encoded_pair == encoded_pair_from_decode
   def 		UpperCamelCase  (     self		):
        lowercase_       :Optional[Any]     =       self.get_tokenizer()

        lowercase_       :Union[str, Any]     =       '''Encode this sequence.'''
        lowercase_       :Union[str, Any]     =       tokenizer.byte_encoder[''' '''.encode('''utf-8'''		)[0]]

        # Testing encoder arguments
        lowercase_       :List[str]     =       tokenizer.encode(UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_		)
        lowercase_       :int     =       tokenizer.convert_ids_to_tokens(encoded[0]		)[0]
        self.assertNotEqual(UpperCamelCase_   ,							UpperCamelCase_		)

        lowercase_       :Optional[Any]     =       tokenizer.encode(UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_		)
        lowercase_       :Union[str, Any]     =       tokenizer.convert_ids_to_tokens(encoded[0]		)[0]
        self.assertEqual(UpperCamelCase_   ,							UpperCamelCase_		)

        tokenizer.add_special_tokens({'''bos_token''': '''<s>'''}		)
        lowercase_       :Optional[int]     =       tokenizer.encode(UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_		)
        lowercase_       :Dict     =       tokenizer.convert_ids_to_tokens(encoded[1]		)[0]
        self.assertNotEqual(UpperCamelCase_   ,							UpperCamelCase_		)

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

        lowercase_       :List[Any]     =       '''Encode <mask> sequence'''
        lowercase_       :List[Any]     =       '''Encode <mask>sequence'''

        lowercase_       :Tuple     =       tokenizer.encode(UpperCamelCase_		)
        lowercase_       :Tuple     =       encoded.index(UpperCamelCase_		)
        lowercase_       :Any     =       tokenizer.convert_ids_to_tokens(encoded[mask_loc + 1]		)[0]
        self.assertEqual(UpperCamelCase_   ,							UpperCamelCase_		)

        lowercase_       :List[str]     =       tokenizer.encode(UpperCamelCase_		)
        lowercase_       :Tuple     =       encoded.index(UpperCamelCase_		)
        lowercase_       :Optional[Any]     =       tokenizer.convert_ids_to_tokens(encoded[mask_loc + 1]		)[0]
        self.assertNotEqual(UpperCamelCase_   ,							UpperCamelCase_		)
   def 		UpperCamelCase  (     self		):
        pass
   def 		UpperCamelCase  (     self		):
        for tokenizer, pretrained_name, kwargs in self.tokenizers_list:
             with self.subTest(f"{tokenizer.__class__.__name__} ({pretrained_name})"		):
                  lowercase_       :List[Any]     =       self.rust_tokenizer_class.from_pretrained(UpperCamelCase_   ,							**UpperCamelCase_		)
                  lowercase_       :str     =       self.tokenizer_class.from_pretrained(UpperCamelCase_   ,							**UpperCamelCase_		)
                  lowercase_       :Union[str, Any]     =       '''A, <mask> AllenNLP sentence.'''
                  lowercase_       :int     =       tokenizer_r.encode_plus(UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_   ,							return_token_type_ids=UpperCamelCase_		)
                  lowercase_       :List[Any]     =       tokenizer_p.encode_plus(UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_   ,							return_token_type_ids=UpperCamelCase_		)

                  # 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''']		)   ,							)

                  lowercase_       :Tuple     =       tokenizer_r.convert_ids_to_tokens(tokens_r['''input_ids''']		)
                  lowercase_       :str     =       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, 250, 6, 5_0264, 3823, 487, 2_1992, 3645, 4, 2]		)
                  self.assertSequenceEqual(tokens_r['''input_ids''']   ,							[0, 250, 6, 5_0264, 3823, 487, 2_1992, 3645, 4, 2]		)

                  self.assertSequenceEqual(
                      UpperCamelCase_   ,							['''<s>''', '''A''', ''',''', '''<mask>''', '''ĠAllen''', '''N''', '''LP''', '''Ġsentence''', '''.''', '''</s>''']		)
                  self.assertSequenceEqual(
                      UpperCamelCase_   ,							['''<s>''', '''A''', ''',''', '''<mask>''', '''ĠAllen''', '''N''', '''LP''', '''Ġsentence''', '''.''', '''</s>''']		)
   def 		UpperCamelCase  (     self		):
        for trim_offsets, add_prefix_space in itertools.product([True, False]   ,							repeat=2		):
             lowercase_       :Tuple     =       self.rust_tokenizer_class.from_pretrained(
                 self.tmpdirname   ,							use_fast=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_   ,							trim_offsets=UpperCamelCase_		)

             lowercase_       :List[Any]     =       json.loads(tokenizer_r.backend_tokenizer.pre_tokenizer.__getstate__()		)
             lowercase_       :Tuple     =       json.loads(tokenizer_r.backend_tokenizer.post_processor.__getstate__()		)

             self.assertEqual(pre_tokenizer_state['''add_prefix_space''']   ,							UpperCamelCase_		)

             self.assertEqual(post_processor_state['''add_prefix_space''']   ,							UpperCamelCase_		)
             self.assertEqual(post_processor_state['''trim_offsets''']   ,							UpperCamelCase_		)




   def 		UpperCamelCase  (     self		):
        # Test which aims to verify that the offsets are well adapted to the argument `add_prefix_space` and
        # `trim_offsets`
        for tokenizer, pretrained_name, kwargs in self.tokenizers_list:
             with self.subTest(f"{tokenizer.__class__.__name__} ({pretrained_name})"		):
                  lowercase_       :Optional[int]     =       '''hello'''  # `hello` is a token in the vocabulary of `pretrained_name`
                  lowercase_       :Optional[int]     =       f"{text_of_1_token} {text_of_1_token}"

                  lowercase_       :str     =       self.rust_tokenizer_class.from_pretrained(
                      UpperCamelCase_   ,							use_fast=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_   ,							trim_offsets=UpperCamelCase_		)
                  lowercase_       :int     =       tokenizer_r(UpperCamelCase_   ,							return_offsets_mapping=UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_		)
                  self.assertEqual(encoding.offset_mapping[0]   ,							(0, len(UpperCamelCase_		))		)
                  self.assertEqual(
                      encoding.offset_mapping[1]   ,							(len(UpperCamelCase_		) + 1, len(UpperCamelCase_		) + 1 + len(UpperCamelCase_		))   ,							)

                  lowercase_       :Dict     =       self.rust_tokenizer_class.from_pretrained(
                      UpperCamelCase_   ,							use_fast=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_   ,							trim_offsets=UpperCamelCase_		)
                  lowercase_       :str     =       tokenizer_r(UpperCamelCase_   ,							return_offsets_mapping=UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_		)
                  self.assertEqual(encoding.offset_mapping[0]   ,							(0, len(UpperCamelCase_		))		)
                  self.assertEqual(
                      encoding.offset_mapping[1]   ,							(len(UpperCamelCase_		) + 1, len(UpperCamelCase_		) + 1 + len(UpperCamelCase_		))   ,							)

                  lowercase_       :int     =       self.rust_tokenizer_class.from_pretrained(
                      UpperCamelCase_   ,							use_fast=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_   ,							trim_offsets=UpperCamelCase_		)
                  lowercase_       :Union[str, Any]     =       tokenizer_r(UpperCamelCase_   ,							return_offsets_mapping=UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_		)
                  self.assertEqual(encoding.offset_mapping[0]   ,							(0, len(UpperCamelCase_		))		)
                  self.assertEqual(
                      encoding.offset_mapping[1]   ,							(len(UpperCamelCase_		), len(UpperCamelCase_		) + 1 + len(UpperCamelCase_		))   ,							)

                  lowercase_       :str     =       self.rust_tokenizer_class.from_pretrained(
                      UpperCamelCase_   ,							use_fast=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_   ,							trim_offsets=UpperCamelCase_		)
                  lowercase_       :List[Any]     =       tokenizer_r(UpperCamelCase_   ,							return_offsets_mapping=UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_		)
                  self.assertEqual(encoding.offset_mapping[0]   ,							(0, len(UpperCamelCase_		))		)
                  self.assertEqual(
                      encoding.offset_mapping[1]   ,							(len(UpperCamelCase_		), len(UpperCamelCase_		) + 1 + len(UpperCamelCase_		))   ,							)

                  lowercase_       :Optional[Any]     =       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)),
                  # )

                  lowercase_       :str     =       self.rust_tokenizer_class.from_pretrained(
                      UpperCamelCase_   ,							use_fast=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_   ,							trim_offsets=UpperCamelCase_		)
                  lowercase_       :Optional[Any]     =       tokenizer_r(UpperCamelCase_   ,							return_offsets_mapping=UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_		)
                  self.assertEqual(encoding.offset_mapping[0]   ,							(1, 1 + len(UpperCamelCase_		))		)
                  self.assertEqual(
                      encoding.offset_mapping[1]   ,							(1 + len(UpperCamelCase_		) + 1, 1 + len(UpperCamelCase_		) + 1 + len(UpperCamelCase_		))   ,							)

                  lowercase_       :List[Any]     =       self.rust_tokenizer_class.from_pretrained(
                      UpperCamelCase_   ,							use_fast=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_   ,							trim_offsets=UpperCamelCase_		)
                  lowercase_       :Dict     =       tokenizer_r(UpperCamelCase_   ,							return_offsets_mapping=UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_		)
                  self.assertEqual(encoding.offset_mapping[0]   ,							(0, 1 + len(UpperCamelCase_		))		)
                  self.assertEqual(
                      encoding.offset_mapping[1]   ,							(1 + len(UpperCamelCase_		), 1 + len(UpperCamelCase_		) + 1 + len(UpperCamelCase_		))   ,							)

                  lowercase_       :Optional[Any]     =       self.rust_tokenizer_class.from_pretrained(
                      UpperCamelCase_   ,							use_fast=UpperCamelCase_   ,							add_prefix_space=UpperCamelCase_   ,							trim_offsets=UpperCamelCase_		)
                  lowercase_       :Any     =       tokenizer_r(UpperCamelCase_   ,							return_offsets_mapping=UpperCamelCase_   ,							add_special_tokens=UpperCamelCase_		)
                  self.assertEqual(encoding.offset_mapping[0]   ,							(0, 1 + len(UpperCamelCase_		))		)
                  self.assertEqual(
                      encoding.offset_mapping[1]   ,							(1 + len(UpperCamelCase_		), 1 + len(UpperCamelCase_		) + 1 + len(UpperCamelCase_		))   ,							)





def     UpperCamelCase    (      _a       ,		_a       ,		_a		)					->							int:
     '''simple docstring'''





     def count_of_possible_combinations(_a		) -> int:
          if target < 0:
               return 0
          if target == 0:
               return 1
          return sum(count_of_possible_combinations(target - item		) for item in array		)

     return count_of_possible_combinations(_a		)




def     UpperCamelCase    (      _a       ,		_a       ,		_a		)					->							int:
     '''simple docstring'''





     def count_of_possible_combinations_with_dp_array(
         _a       ,		_a		) -> int:
          if target < 0:
               return 0
          if target == 0:
               return 1
          if dp_array[target] != -1:
               return dp_array[target]
          lowercase_       :Optional[int]     =       sum(
              count_of_possible_combinations_with_dp_array(target - item       ,		_a		)
              for item in array		)
          lowercase_       :List[Any]     =       answer
          return answer

     lowercase_       :Dict     =       [-1] * (target + 1)
     return count_of_possible_combinations_with_dp_array(_a       ,		_a		)




def     UpperCamelCase    (      _a       ,		_a       ,		_a		)					->							int:
     '''simple docstring'''





     lowercase_       :Optional[int]     =       [0] * (target + 1)
     lowercase_       :int     =       1

     for i in range(1       ,		target + 1		):
          for j in range(_a		):
               if i - array[j] >= 0:
                    dp_array[i] += dp_array[i - array[j]]

     return dp_array[target]


if __name__ == "__main__":
   import doctest

   doctest.testmod()
   SCREAMING_SNAKE_CASE       :		Optional[Any]         =				3
   SCREAMING_SNAKE_CASE       :		Tuple         =				5
   SCREAMING_SNAKE_CASE       :		List[Any]         =				[1, 2, 5]
   print(combination_sum_iv(n, array, target))

