





"""simple docstring"""
import json
import os
import unittest

from transformers.models.fsmt.tokenization_fsmt import VOCAB_FILES_NAMES, FSMTTokenizer
from transformers.testing_utils import slow
from transformers.utils import cached_property

from ...test_tokenization_common import TokenizerTesterMixin


# using a different tiny model than the one used for default params defined in init to ensure proper testing
__UpperCamelCase    :	Optional[int]						=     '''stas/tiny-wmt19-en-ru'''







class 			a       (      a__      ,   unittest.TestCase     ):
 snake_case__								=					FSMTTokenizer
 snake_case__								=					False



 def       UpperCamelCase__     (    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',
      'w</w>',
      'r</w>',
      't</w>',
      'lo',
      'low',
      'er</w>',
      'low</w>',
      'lowest</w>',
      'newer</w>',
      'wider</w>',
      '<unk>',
  ]
  lowerCAmelCase													=   dict(zip(_snake_case							,					range(len(_snake_case    )    )    )    )
  lowerCAmelCase													=   ['l o 123', 'lo w 1456', 'e r</w> 1789', '']

  lowerCAmelCase													=   ['en', 'ru']
  lowerCAmelCase													=   {
      'langs': self.langs,
      'src_vocab_size': 10,
      'tgt_vocab_size': 20,
  }

  lowerCAmelCase													=   os.path.join(self.tmpdirname							,					VOCAB_FILES_NAMES['src_vocab_file']    )
  lowerCAmelCase													=   os.path.join(self.tmpdirname							,					VOCAB_FILES_NAMES['tgt_vocab_file']    )
  lowerCAmelCase													=   os.path.join(self.tmpdirname							,					'tokenizer_config.json'    )
  lowerCAmelCase													=   os.path.join(self.tmpdirname							,					VOCAB_FILES_NAMES['merges_file']    )
  with open(self.src_vocab_file							,					'w'    ) as fp:
   fp.write(json.dumps(_snake_case    )    )
  with open(self.tgt_vocab_file							,					'w'    ) as fp:
   fp.write(json.dumps(_snake_case    )    )
  with open(self.merges_file							,					'w'    ) as fp:
   fp.write('\n'.join(_snake_case    )    )
  with open(_snake_case							,					'w'    ) as fp:
   fp.write(json.dumps(_snake_case    )    )



 @cached_property
 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  return FSMTTokenizer.from_pretrained('facebook/wmt19-ru-en'    )



 @cached_property
 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  return FSMTTokenizer.from_pretrained('facebook/wmt19-en-ru'    )



 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  lowerCAmelCase													=   FSMTTokenizer.from_pretrained(_snake_case    )
  self.assertListEqual([tokenizer.src_lang, tokenizer.tgt_lang]							,					['en', 'ru']    )
  self.assertEqual(tokenizer.src_vocab_size							,					21    )
  self.assertEqual(tokenizer.tgt_vocab_size							,					21    )



 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  lowerCAmelCase													=   FSMTTokenizer(self.langs							,					self.src_vocab_file							,					self.tgt_vocab_file							,					self.merges_file    )

  lowerCAmelCase													=   'lower'
  lowerCAmelCase													=   ['low', 'er</w>']
  lowerCAmelCase													=   tokenizer.tokenize(_snake_case    )
  self.assertListEqual(_snake_case							,					_snake_case    )

  lowerCAmelCase													=   tokens + ['<unk>']
  lowerCAmelCase													=   [14, 15, 20]
  self.assertListEqual(tokenizer.convert_tokens_to_ids(_snake_case    )							,					_snake_case    )



 @slow
 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  lowerCAmelCase													=   self.tokenizer_ru_en

  lowerCAmelCase													=   tokenizer.encode('sequence builders'							,					add_special_tokens=_snake_case    )
  lowerCAmelCase													=   tokenizer.encode('multi-sequence build'							,					add_special_tokens=_snake_case    )

  lowerCAmelCase													=   tokenizer.build_inputs_with_special_tokens(_snake_case    )
  lowerCAmelCase													=   tokenizer.build_inputs_with_special_tokens(_snake_case							,					_snake_case    )

  assert encoded_sentence == text + [2]
  assert encoded_pair == text + [2] + text_a + [2]



 @slow
 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  lowerCAmelCase													=   self.tokenizer_en_ru
  lowerCAmelCase													=   self.tokenizer_ru_en

  lowerCAmelCase													=   [
      [
          'Here\'s a little song I wrote. Don\'t worry, be happy.',
          [24_70, 39, 11, 23_49, 72_22, 70, 59_79, 7, 84_50, 10_50, 1_31_60, 5, 26, 64_45, 7, 2],
      ],
      ['This is it. No more. I\'m done!', [1_32, 21, 37, 7, 14_34, 86, 7, 70, 64_76, 13_05, 4_27, 2]],
  ]

  # if data needs to be recreated or added, run:
  # import torch
  # model = torch.hub.load("pytorch/fairseq", "transformer.wmt19.en-ru", checkpoint_file="model4.pt", tokenizer="moses", bpe="fastbpe")
  # for src_text, _ in targets: print(f"""[\n"{src_text}",\n {model.encode(src_text).tolist()}\n],""")

  for src_text, tgt_input_ids in targets:
   lowerCAmelCase													=   tokenizer_enc.encode(_snake_case							,					return_tensors=_snake_case    )
   self.assertListEqual(_snake_case							,					_snake_case    )

   # and decode backward, using the reversed languages model
   lowerCAmelCase													=   tokenizer_dec.decode(_snake_case							,					skip_special_tokens=_snake_case    )
   self.assertEqual(_snake_case							,					_snake_case    )



 @slow
 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  lowerCAmelCase													=   FSMTTokenizer.from_pretrained('facebook/wmt19-ru-en'							,					do_lower_case=_snake_case    )
  lowerCAmelCase													=   tokenizer.tokenize('USA is United States of America'    )
  lowerCAmelCase													=   ['us', 'a</w>', 'is</w>', 'un', 'i', 'ted</w>', 'st', 'ates</w>', 'of</w>', 'am', 'er', 'ica</w>']
  self.assertListEqual(_snake_case							,					_snake_case    )



 @unittest.skip('FSMTConfig.__init__  requires non-optional args'    )
 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  pass



 @unittest.skip('FSMTConfig.__init__  requires non-optional args'    )
 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  pass












"""simple docstring"""
import math
import sys







class 			a       :



 def __init__(    self    ):







  """simple docstring"""






  lowerCAmelCase													=   0
  lowerCAmelCase													=   []
  lowerCAmelCase													=   {}  # To store the pos of node in array



 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  return self.cur_size == 0



 def       UpperCamelCase__     (    self							,					_snake_case    ):







  """simple docstring"""






  lowerCAmelCase													=   self.left(_snake_case    )
  lowerCAmelCase													=   self.right(_snake_case    )
  if lc < self.cur_size and self.array(_snake_case    )[0] < self.array(_snake_case    )[0]:
   lowerCAmelCase													=   lc
  else:
   lowerCAmelCase													=   idx
  if rc < self.cur_size and self.array(_snake_case    )[0] < self.array(_snake_case    )[0]:
   lowerCAmelCase													=   rc
  if smallest != idx:
   self.swap(_snake_case							,					_snake_case    )
   self.min_heapify(_snake_case    )



 def       UpperCamelCase__     (    self							,					_snake_case    ):







  """simple docstring"""






  lowerCAmelCase													=   self.cur_size
  self.cur_size += 1
  self.array.append((sys.maxsize, tup[1])    )
  self.decrease_key((sys.maxsize, tup[1])							,					tup[0]    )



 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  lowerCAmelCase													=   self.array[0][1]
  lowerCAmelCase													=   self.array[self.cur_size - 1]
  self.cur_size -= 1
  self.min_heapify(1    )
  del self.pos[min_node]
  return min_node



 def       UpperCamelCase__     (    self							,					_snake_case    ):







  """simple docstring"""






  return 2 * i + 1



 def       UpperCamelCase__     (    self							,					_snake_case    ):







  """simple docstring"""






  return 2 * i + 2



 def       UpperCamelCase__     (    self							,					_snake_case    ):







  """simple docstring"""






  return math.floor(i / 2    )



 def       UpperCamelCase__     (    self							,					_snake_case							,					_snake_case    ):







  """simple docstring"""






  lowerCAmelCase													=   j
  lowerCAmelCase													=   i
  lowerCAmelCase													=   self.array[i]
  lowerCAmelCase													=   self.array[j]
  lowerCAmelCase													=   temp



 def       UpperCamelCase__     (    self							,					_snake_case							,					_snake_case    ):







  """simple docstring"""






  lowerCAmelCase													=   self.pos[tup[1]]
  # assuming the new_d is atmost old_d
  lowerCAmelCase													=   (new_d, tup[1])
  while idx > 0 and self.array[self.par(_snake_case    )][0] > self.array[idx][0]:
   self.swap(_snake_case							,					self.par(_snake_case    )    )
   lowerCAmelCase													=   self.par(_snake_case    )







class 			a       :



 def __init__(    self							,					_snake_case    ):







  """simple docstring"""






  lowerCAmelCase													=   {}  # To store graph: u -> (v,w)
  lowerCAmelCase													=   num  # Number of nodes in graph
  # To store the distance from source vertex
  lowerCAmelCase													=   [0] * self.num_nodes
  lowerCAmelCase													=   [-1] * self.num_nodes  # To store the path



 def       UpperCamelCase__     (    self							,					_snake_case							,					_snake_case							,					_snake_case    ):







  """simple docstring"""






  if u in self.adjList:
   self.adjList[u].append((v, w)    )
  else:
   lowerCAmelCase													=   [(v, w)]

  # Assuming undirected graph
  if v in self.adjList:
   self.adjList[v].append((u, w)    )
  else:
   lowerCAmelCase													=   [(u, w)]



 def       UpperCamelCase__     (    self    ):







  """simple docstring"""






  for u in self.adjList:
   print(_snake_case							,					'->'							,					' -> '.join(str(F'{v}({w})'    ) for v, w in self.adjList[u]    )    )



 def       UpperCamelCase__     (    self							,					_snake_case    ):







  """simple docstring"""






  lowerCAmelCase													=   [-1] * self.num_nodes
  # src is the source node
  lowerCAmelCase													=   0
  lowerCAmelCase													=   PriorityQueue()
  q.insert((0, src)    )  # (dist from src, node)
  for u in self.adjList:
   if u != src:
    lowerCAmelCase													=   sys.maxsize  # Infinity
    lowerCAmelCase													=   -1

  while not q.is_empty():
   lowerCAmelCase													=   q.extract_min()  # Returns node with the min dist from source
   # Update the distance of all the neighbours of u and
   # if their prev dist was INFINITY then push them in Q
   for v, w in self.adjList[u]:
    lowerCAmelCase													=   self.dist[u] + w
    if self.dist[v] > new_dist:
     if self.dist[v] == sys.maxsize:
      q.insert((new_dist, v)    )
     else:
      q.decrease_key((self.dist[v], v)							,					_snake_case    )
     lowerCAmelCase													=   new_dist
     lowerCAmelCase													=   u

        # Show the shortest distances from src
  self.show_distances(_snake_case    )



 def       UpperCamelCase__     (    self							,					_snake_case    ):







  """simple docstring"""






  print(F'Distance from node: {src}'    )
  for u in range(self.num_nodes    ):
   print(F'Node {u} has distance: {self.dist[u]}'    )



 def       UpperCamelCase__     (    self							,					_snake_case							,					_snake_case    ):







  """simple docstring"""






  lowerCAmelCase													=   []
  lowerCAmelCase													=   0
  lowerCAmelCase													=   dest
  # Backtracking from dest to src
  while self.par[temp] != -1:
   path.append(_snake_case    )
   if temp != src:
    for v, w in self.adjList[temp]:
     if v == self.par[temp]:
      cost += w
      break
   lowerCAmelCase													=   self.par[temp]
  path.append(_snake_case    )
  path.reverse()

  print(F'----Path to reach {dest} from {src}----'    )
  for u in path:
   print(F'{u}'							,					end=' '    )
   if u != dest:
    print('-> '							,					end=''    )

  print('\nTotal cost of path: '							,					_snake_case    )


if __name__ == "__main__":
       __UpperCamelCase    :	str						=     Graph(9)
       graph.add_edge(0, 1, 4)
       graph.add_edge(0, 7, 8)
       graph.add_edge(1, 2, 8)
       graph.add_edge(1, 7, 11)
       graph.add_edge(2, 3, 7)
       graph.add_edge(2, 8, 2)
       graph.add_edge(2, 5, 4)
       graph.add_edge(3, 4, 9)
       graph.add_edge(3, 5, 14)
       graph.add_edge(4, 5, 10)
       graph.add_edge(5, 6, 2)
       graph.add_edge(6, 7, 1)
       graph.add_edge(6, 8, 6)
       graph.add_edge(7, 8, 7)
       graph.show_graph()
       graph.dijkstra(0)
       graph.show_path(0, 4)

# OUTPUT
# 0 -> 1(4) -> 7(8)
# 1 -> 0(4) -> 2(8) -> 7(11)
# 7 -> 0(8) -> 1(11) -> 6(1) -> 8(7)
# 2 -> 1(8) -> 3(7) -> 8(2) -> 5(4)
# 3 -> 2(7) -> 4(9) -> 5(14)
# 8 -> 2(2) -> 6(6) -> 7(7)
# 5 -> 2(4) -> 3(14) -> 4(10) -> 6(2)
# 4 -> 3(9) -> 5(10)
# 6 -> 5(2) -> 7(1) -> 8(6)
# Distance from node: 0
# Node 0 has distance: 0
# Node 1 has distance: 4
# Node 2 has distance: 12
# Node 3 has distance: 19
# Node 4 has distance: 21
# Node 5 has distance: 11
# Node 6 has distance: 9
# Node 7 has distance: 8
# Node 8 has distance: 14
# ----Path to reach 4 from 0----
# 0 -> 7 -> 6 -> 5 -> 4
# Total cost of path:  21





