


"""simple docstring"""




import absl  # noqa: F401 # Here to have a nice missing dependency error message early on
import nltk  # noqa: F401 # Here to have a nice missing dependency error message early on
import numpy  # noqa: F401 # Here to have a nice missing dependency error message early on
import six  # noqa: F401 # Here to have a nice missing dependency error message early on
from rouge_score import rouge_scorer, scoring

import datasets


_a				:		List[str]	   =       '\\n@inproceedings{lin-2004-rouge,\n    title = "{ROUGE}: A Package for Automatic Evaluation of Summaries",\n    author = "Lin, Chin-Yew",\n    booktitle = "Text Summarization Branches Out",\n    month = jul,\n    year = "2004",\n    address = "Barcelona, Spain",\n    publisher = "Association for Computational Linguistics",\n    url = "https://www.aclweb.org/anthology/W04-1013",\n    pages = "74--81",\n}\n'

_a				:		Any	   =       '\\nROUGE, or Recall-Oriented Understudy for Gisting Evaluation, is a set of metrics and a software package used for\nevaluating automatic summarization and machine translation software in natural language processing.\nThe metrics compare an automatically produced summary or translation against a reference or a set of references (human-produced) summary or translation.\n\nNote that ROUGE is case insensitive, meaning that upper case letters are treated the same way as lower case letters.\n\nThis metrics is a wrapper around Google Research reimplementation of ROUGE:\nhttps://github.com/google-research/google-research/tree/master/rouge\n'

_a				:		List[str]	   =       '\nCalculates average rouge scores for a list of hypotheses and references\nArgs:\n    predictions: list of predictions to score. Each prediction\n        should be a string with tokens separated by spaces.\n    references: list of reference for each prediction. Each\n        reference should be a string with tokens separated by spaces.\n    rouge_types: A list of rouge types to calculate.\n        Valid names:\n        `"rouge{n}"` (e.g. `"rouge1"`, `"rouge2"`) where: {n} is the n-gram based scoring,\n        `"rougeL"`: Longest common subsequence based scoring.\n        `"rougeLSum"`: rougeLsum splits text using `"\n"`.\n        See details in https://github.com/huggingface/datasets/issues/617\n    use_stemmer: Bool indicating whether Porter stemmer should be used to strip word suffixes.\n    use_aggregator: Return aggregates if this is set to True\nReturns:\n    rouge1: rouge_1 (precision, recall, f1),\n    rouge2: rouge_2 (precision, recall, f1),\n    rougeL: rouge_l (precision, recall, f1),\n    rougeLsum: rouge_lsum (precision, recall, f1)\nExamples:\n\n    >>> rouge = datasets.load_metric(\'rouge\')\n    >>> predictions = ["hello there", "general kenobi"]\n    >>> references = ["hello there", "general kenobi"]\n    >>> results = rouge.compute(predictions=predictions, references=references)\n    >>> print(list(results.keys()))\n    [\'rouge1\', \'rouge2\', \'rougeL\', \'rougeLsum\']\n    >>> print(results["rouge1"])\n    AggregateScore(low=Score(precision=1.0, recall=1.0, fmeasure=1.0), mid=Score(precision=1.0, recall=1.0, fmeasure=1.0), high=Score(precision=1.0, recall=1.0, fmeasure=1.0))\n    >>> print(results["rouge1"].mid.fmeasure)\n    1.0\n'
@datasets.utils.file_utils.add_start_docstrings(_DESCRIPTION   ,     _KWARGS_DESCRIPTION		)
class 						__A							(			datasets.Metric		):






     def    __A  (		self  ):
       return datasets.MetricInfo(
           description=_DESCRIPTION    ,					citation=_CITATION    ,					inputs_description=_KWARGS_DESCRIPTION    ,					features=datasets.Features(
               {
                   """predictions""": datasets.Value("""string"""    ,					id="""sequence"""  ),
                   """references""": datasets.Value("""string"""    ,					id="""sequence"""  ),
               }  )    ,					codebase_urls=["""https://github.com/google-research/google-research/tree/master/rouge"""]    ,					reference_urls=[
               """https://en.wikipedia.org/wiki/ROUGE_(metric)""",
               """https://github.com/google-research/google-research/tree/master/rouge""",
           ]    ,					)






     def    __A  (		self    ,					a__    ,					a__    ,					a__=None    ,					a__=True    ,					a__=False  ):
       if rouge_types is None:
         _lowerCAmelCase						:	List[Any]        =					["""rouge1""", """rouge2""", """rougeL""", """rougeLsum"""]

       _lowerCAmelCase						:	Optional[Any]        =					rouge_scorer.RougeScorer(rouge_types=a__    ,					use_stemmer=a__  )
       if use_aggregator:
         _lowerCAmelCase						:	Union[str, Any]        =					scoring.BootstrapAggregator()
       else:
         _lowerCAmelCase						:	str        =					[]

       for ref, pred in zip(a__    ,					a__  ):
         _lowerCAmelCase						:	List[Any]        =					scorer.score(a__    ,					a__  )
         if use_aggregator:
           aggregator.add_scores(a__  )
         else:
           scores.append(a__  )

       if use_aggregator:
         _lowerCAmelCase						:	Dict        =					aggregator.aggregate()
       else:
         _lowerCAmelCase						:	Tuple        =					{}
         for key in scores[0]:
           _lowerCAmelCase						:	List[Any]        =					[score[key] for score in scores]

       return result





"""simple docstring"""




import os
from pathlib import Path

import numpy as np
import pytest
from pack_dataset import pack_data_dir
from parameterized import parameterized
from save_len_file import save_len_file
from torch.utils.data import DataLoader

from transformers import AutoTokenizer
from transformers.models.mbart.modeling_mbart import shift_tokens_right
from transformers.testing_utils import TestCasePlus, slow
from utils import FAIRSEQ_AVAILABLE, DistributedSortishSampler, LegacySeqaSeqDataset, SeqaSeqDataset


_a				:		Optional[int]	   =       'bert-base-cased'
_a				:		Optional[Any]	   =       'google/pegasus-xsum'
_a				:		Union[str, Any]	   =       [' Sam ate lunch today.', 'Sams lunch ingredients.']
_a				:		int	   =       ['A very interesting story about what I ate for lunch.', 'Avocado, celery, turkey, coffee']
_a				:		Union[str, Any]	   =       'patrickvonplaten/t5-tiny-random'
_a				:		Tuple	   =       'sshleifer/bart-tiny-random'
_a				:		str	   =       'sshleifer/tiny-mbart'
_a				:		Optional[int]	   =       'sshleifer/tiny-marian-en-de'





def 							SCREAMING_SNAKE_CASE					(      _lowerCamelCase						:	Path      ,_lowerCamelCase						:	list     )	->				str:
  _lowerCAmelCase						:	List[Any]        =					"""\n""".join(_lowerCamelCase     )
  Path(_lowerCamelCase     ).open("""w"""     ).writelines(_lowerCamelCase     )





def 							SCREAMING_SNAKE_CASE					(      _lowerCamelCase						:	Optional[int]     )	->				Union[str, Any]:
  for split in ["train", "val", "test"]:
    _dump_articles(os.path.join(_lowerCamelCase      ,f"{split}.source"     )      ,_lowerCamelCase     )
    _dump_articles(os.path.join(_lowerCamelCase      ,f"{split}.target"     )      ,_lowerCamelCase     )
  return tmp_dir






class 						__A							(			SCREAMING_SNAKE_CASE_		):






     @parameterized.expand(
         [
             MBART_TINY,
             MARIAN_TINY,
             T5_TINY,
             BART_TINY,
             PEGASUS_XSUM,
         ]    ,					)
     @slow
     def    __A  (		self    ,					a__  ):
       _lowerCAmelCase						:	str        =					AutoTokenizer.from_pretrained(a__  )
       _lowerCAmelCase						:	Any        =					make_test_data_dir(tmp_dir=self.get_auto_remove_tmp_dir()  )
       _lowerCAmelCase						:	Union[str, Any]        =					max(len(tokenizer.encode(a__  )  ) for a in ARTICLES  )
       _lowerCAmelCase						:	Optional[int]        =					max(len(tokenizer.encode(a__  )  ) for a in SUMMARIES  )
       _lowerCAmelCase						:	str        =					4
       _lowerCAmelCase						:	Optional[int]        =					8
       assert max_len_target > max_src_len  # Will be truncated
       assert max_len_source > max_src_len  # Will be truncated
       _lowerCAmelCase      ,     _lowerCAmelCase						:	Optional[int]        =					"""ro_RO""", """de_DE"""  # ignored for all but mbart, but never causes error.
       _lowerCAmelCase						:	Optional[int]        =					SeqaSeqDataset(
           a__    ,					data_dir=a__    ,					type_path="""train"""    ,					max_source_length=a__    ,					max_target_length=a__    ,					src_lang=a__    ,					tgt_lang=a__    ,					)
       _lowerCAmelCase						:	int        =					DataLoader(a__    ,					batch_size=2    ,					collate_fn=train_dataset.collate_fn  )
       for batch in dataloader:
         assert isinstance(a__    ,					a__  )
         assert batch["attention_mask"].shape == batch["input_ids"].shape
         # show that articles were trimmed.
         assert batch["input_ids"].shape[1] == max_src_len
         # show that targets are the same len
         assert batch["labels"].shape[1] == max_tgt_len
         if tok_name != MBART_TINY:
           continue
         # check language codes in correct place
         _lowerCAmelCase						:	Any        =					shift_tokens_right(batch["""labels"""]    ,					tokenizer.pad_token_id  )
         assert batch["decoder_input_ids"][0, 0].item() == tokenizer.lang_code_to_id[tgt_lang]
         assert batch["decoder_input_ids"][0, -1].item() == tokenizer.eos_token_id
         assert batch["input_ids"][0, -2].item() == tokenizer.eos_token_id
         assert batch["input_ids"][0, -1].item() == tokenizer.lang_code_to_id[src_lang]

         break  # No need to test every batch






     @parameterized.expand([BART_TINY, BERT_BASE_CASED]  )
     def    __A  (		self    ,					a__  ):
       _lowerCAmelCase						:	Any        =					AutoTokenizer.from_pretrained(a__  )
       _lowerCAmelCase						:	Union[str, Any]        =					make_test_data_dir(tmp_dir=self.get_auto_remove_tmp_dir()  )
       _lowerCAmelCase						:	Optional[int]        =					max(len(tokenizer.encode(a__  )  ) for a in ARTICLES  )
       _lowerCAmelCase						:	Any        =					max(len(tokenizer.encode(a__  )  ) for a in SUMMARIES  )
       _lowerCAmelCase						:	int        =					4
       _lowerCAmelCase						:	List[str]        =					LegacySeqaSeqDataset(
           a__    ,					data_dir=a__    ,					type_path="""train"""    ,					max_source_length=20    ,					max_target_length=a__    ,					)
       _lowerCAmelCase						:	List[Any]        =					DataLoader(a__    ,					batch_size=2    ,					collate_fn=train_dataset.collate_fn  )
       for batch in dataloader:
         assert batch["attention_mask"].shape == batch["input_ids"].shape
         # show that articles were trimmed.
         assert batch["input_ids"].shape[1] == max_len_source
         assert 20 >= batch["input_ids"].shape[1]  # trimmed significantly
         # show that targets were truncated
         assert batch["labels"].shape[1] == trunc_target  # Truncated
         assert max_len_target > trunc_target  # Truncated
         break  # No need to test every batch






     def    __A  (		self  ):
       _lowerCAmelCase						:	Any        =					AutoTokenizer.from_pretrained("""facebook/mbart-large-cc25"""  )

       _lowerCAmelCase						:	List[Any]        =					Path(make_test_data_dir(tmp_dir=self.get_auto_remove_tmp_dir()  )  )
       _lowerCAmelCase						:	List[Any]        =					tmp_dir.joinpath("""train.source"""  ).open().readlines()
       _lowerCAmelCase						:	str        =					Path(make_test_data_dir(tmp_dir=self.get_auto_remove_tmp_dir()  )  )
       pack_data_dir(a__    ,					a__    ,					128    ,					a__  )
       _lowerCAmelCase						:	List[Any]        =					{x.name for x in tmp_dir.iterdir()}
       _lowerCAmelCase						:	Tuple        =					{x.name for x in save_dir.iterdir()}
       _lowerCAmelCase						:	Union[str, Any]        =					save_dir.joinpath("""train.source"""  ).open().readlines()
       # orig: [' Sam ate lunch today.\n', 'Sams lunch ingredients.']
       # desired_packed: [' Sam ate lunch today.\n Sams lunch ingredients.']
       assert len(a__  ) < len(a__  )
       assert len(a__  ) == 1
       assert len(packed_examples[0]  ) == sum(len(a__  ) for x in orig_examples  )
       assert orig_paths == new_paths






     @pytest.mark.skipif(not FAIRSEQ_AVAILABLE    ,					reason="""This test requires fairseq"""  )
     def    __A  (		self  ):
       if not FAIRSEQ_AVAILABLE:
         return
       _lowerCAmelCase      ,     _lowerCAmelCase      ,     _lowerCAmelCase						:	Tuple        =					self._get_dataset(max_len=64  )
       _lowerCAmelCase						:	Optional[int]        =					64
       _lowerCAmelCase						:	str        =					ds.make_dynamic_sampler(a__    ,					required_batch_size_multiple=a__  )
       _lowerCAmelCase						:	int        =					[len(a__  ) for x in batch_sampler]
       assert len(set(a__  )  ) > 1  # it's not dynamic batch size if every batch is the same length
       assert sum(a__  ) == len(a__  )  # no dropped or added examples
       _lowerCAmelCase						:	List[str]        =					DataLoader(a__    ,					batch_sampler=a__    ,					collate_fn=ds.collate_fn    ,					num_workers=2  )
       _lowerCAmelCase						:	List[Any]        =					[]
       _lowerCAmelCase						:	Optional[int]        =					[]
       for batch in data_loader:
         _lowerCAmelCase						:	int        =					batch["""input_ids"""].shape
         _lowerCAmelCase						:	Union[str, Any]        =					src_shape[0]
         assert bs % required_batch_size_multiple == 0 or bs < required_batch_size_multiple
         _lowerCAmelCase						:	List[str]        =					np.product(batch["""input_ids"""].shape  )
         num_src_per_batch.append(a__  )
         if num_src_tokens > (max_tokens * 1.1):
           failures.append(a__  )
       assert num_src_per_batch[0] == max(a__  )
       if failures:
         raise AssertionError(F"too many tokens in {len(a__  )} batches"  )






     def    __A  (		self  ):
       _lowerCAmelCase      ,     _lowerCAmelCase      ,     _lowerCAmelCase						:	Dict        =					self._get_dataset(max_len=512  )
       _lowerCAmelCase						:	int        =					2
       _lowerCAmelCase						:	List[str]        =					ds.make_sortish_sampler(a__    ,					shuffle=a__  )

       _lowerCAmelCase						:	Dict        =					DataLoader(a__    ,					batch_size=a__    ,					collate_fn=ds.collate_fn    ,					num_workers=2  )
       _lowerCAmelCase						:	int        =					DataLoader(a__    ,					batch_size=a__    ,					collate_fn=ds.collate_fn    ,					num_workers=2    ,					sampler=a__  )

       _lowerCAmelCase						:	int        =					tokenizer.pad_token_id

       def count_pad_tokens(a__    ,					a__="input_ids"  ):
         return [batch[k].eq(a__  ).sum().item() for batch in data_loader]

       assert sum(count_pad_tokens(a__    ,					k="""labels"""  )  ) < sum(count_pad_tokens(a__    ,					k="""labels"""  )  )
       assert sum(count_pad_tokens(a__  )  ) < sum(count_pad_tokens(a__  )  )
       assert len(a__  ) == len(a__  )






     def    __A  (		self    ,					a__=1000    ,					a__=128  ):
       if os.getenv("""USE_REAL_DATA"""    ,					a__  ):
         _lowerCAmelCase						:	List[str]        =					"""examples/seq2seq/wmt_en_ro"""
         _lowerCAmelCase						:	str        =					max_len * 2 * 64
         if not Path(a__  ).joinpath("""train.len"""  ).exists():
           save_len_file(a__    ,					a__  )
       else:
         _lowerCAmelCase						:	List[str]        =					"""examples/seq2seq/test_data/wmt_en_ro"""
         _lowerCAmelCase						:	Dict        =					max_len * 4
         save_len_file(a__    ,					a__  )

       _lowerCAmelCase						:	Optional[Any]        =					AutoTokenizer.from_pretrained(a__  )
       _lowerCAmelCase						:	Dict        =					SeqaSeqDataset(
           a__    ,					data_dir=a__    ,					type_path="""train"""    ,					max_source_length=a__    ,					max_target_length=a__    ,					n_obs=a__    ,					)
       return ds, max_tokens, tokenizer






     def    __A  (		self  ):
       _lowerCAmelCase      ,     _lowerCAmelCase      ,     _lowerCAmelCase						:	Union[str, Any]        =					self._get_dataset()
       _lowerCAmelCase						:	Any        =					set(DistributedSortishSampler(a__    ,					256    ,					num_replicas=2    ,					rank=0    ,					add_extra_examples=a__  )  )
       _lowerCAmelCase						:	Optional[int]        =					set(DistributedSortishSampler(a__    ,					256    ,					num_replicas=2    ,					rank=1    ,					add_extra_examples=a__  )  )
       assert idsa.intersection(a__  ) == set()






     @parameterized.expand(
         [
             MBART_TINY,
             MARIAN_TINY,
             T5_TINY,
             BART_TINY,
             PEGASUS_XSUM,
         ]    ,					)
     def    __A  (		self    ,					a__  ):
       _lowerCAmelCase						:	int        =					AutoTokenizer.from_pretrained(a__    ,					use_fast=a__  )
       if tok_name == MBART_TINY:
         _lowerCAmelCase						:	Dict        =					SeqaSeqDataset(
             a__    ,					data_dir=make_test_data_dir(tmp_dir=self.get_auto_remove_tmp_dir()  )    ,					type_path="""train"""    ,					max_source_length=4    ,					max_target_length=8    ,					src_lang="""EN"""    ,					tgt_lang="""FR"""    ,					)
         _lowerCAmelCase						:	Optional[Any]        =					train_dataset.dataset_kwargs
         assert "src_lang" in kwargs and "tgt_lang" in kwargs
       else:
         _lowerCAmelCase						:	List[Any]        =					SeqaSeqDataset(
             a__    ,					data_dir=make_test_data_dir(tmp_dir=self.get_auto_remove_tmp_dir()  )    ,					type_path="""train"""    ,					max_source_length=4    ,					max_target_length=8    ,					)
         _lowerCAmelCase						:	Tuple        =					train_dataset.dataset_kwargs
         assert "add_prefix_space" not in kwargs if tok_name != BART_TINY else "add_prefix_space" in kwargs
         assert len(a__  ) == 1 if tok_name == BART_TINY else len(a__  ) == 0




