






import os
from pathlib import Path
from unittest.mock import patch

import pytest
import zstandard as zstd

from datasets.download.download_config import DownloadConfig
from datasets.utils.file_utils import (
    OfflineModeIsEnabled,
    cached_path,
    fsspec_get,
    fsspec_head,
    ftp_get,
    ftp_head,
    get_from_cache,
    http_get,
    http_head,
)


snake_case__      :	Union[str, Any]       	=      """\
    Text data.
    Second line of data."""

snake_case__      :	Tuple       	=      """file"""






@pytest.fixture(scope='session')
def     _snake_case    (__lowercase):
			UpperCamelCase_									=     tmp_path_factory.mktemp('data') / (FILE_PATH + '.zstd')
			UpperCamelCase_									=     bytes(_SCREAMING_SNAKE_CASE    ,      'utf-8')
			with zstd.open(_SCREAMING_SNAKE_CASE    ,      'wb') as f:
						f.write(_SCREAMING_SNAKE_CASE)
			return path






@pytest.fixture
def     _snake_case    (__lowercase):
			with open(os.path.join(tmpfs.local_root_dir    ,      _SCREAMING_SNAKE_CASE)    ,      'w') as f:
						f.write(_SCREAMING_SNAKE_CASE)
			return FILE_PATH






@pytest.mark.parametrize('compression_format'    ,      ['gzip', 'xz', 'zstd'])
def     _snake_case    (__lowercase    ,      __lowercase    ,      __lowercase    ,      __lowercase    ,      __lowercase    ,      __lowercase):
			UpperCamelCase_									=     {'gzip': gz_file, 'xz': xz_file, 'zstd': zstd_path}
			UpperCamelCase_									=     input_paths[compression_format]
			UpperCamelCase_									=     tmp_path / 'cache'
			UpperCamelCase_									=     DownloadConfig(cache_dir=_SCREAMING_SNAKE_CASE    ,      extract_compressed_file=_SCREAMING_SNAKE_CASE)
			UpperCamelCase_									=     cached_path(_SCREAMING_SNAKE_CASE    ,      download_config=_SCREAMING_SNAKE_CASE)
			with open(_SCREAMING_SNAKE_CASE) as f:
						UpperCamelCase_									=     f.read()
			with open(_SCREAMING_SNAKE_CASE) as f:
						UpperCamelCase_									=     f.read()
			assert extracted_file_content == expected_file_content






@pytest.mark.parametrize('default_extracted'    ,      [True, False])
@pytest.mark.parametrize('default_cache_dir'    ,      [True, False])
def     _snake_case    (__lowercase    ,      __lowercase    ,      __lowercase    ,      __lowercase    ,      __lowercase):
			UpperCamelCase_									=     'custom_cache'
			UpperCamelCase_									=     'custom_extracted_dir'
			UpperCamelCase_									=     tmp_path / 'custom_extracted_path'
			if default_extracted:
						UpperCamelCase_									=     ('downloads' if default_cache_dir else custom_cache_dir, 'extracted')
			else:
						monkeypatch.setattr('datasets.config.EXTRACTED_DATASETS_DIR'    ,      _SCREAMING_SNAKE_CASE)
						monkeypatch.setattr('datasets.config.EXTRACTED_DATASETS_PATH'    ,      str(_SCREAMING_SNAKE_CASE))
						UpperCamelCase_									=     custom_extracted_path.parts[-2:] if default_cache_dir else (custom_cache_dir, custom_extracted_dir)

			UpperCamelCase_									=     xz_file
			UpperCamelCase_									=     (
			    DownloadConfig(extract_compressed_file=_SCREAMING_SNAKE_CASE)
			    if default_cache_dir
			    else DownloadConfig(cache_dir=tmp_path / custom_cache_dir    ,      extract_compressed_file=_SCREAMING_SNAKE_CASE)
			)
			UpperCamelCase_									=     cached_path(_SCREAMING_SNAKE_CASE    ,      download_config=_SCREAMING_SNAKE_CASE)
			assert Path(_SCREAMING_SNAKE_CASE).parent.parts[-2:] == expected






def     _snake_case    (__lowercase):
			# absolute path
			UpperCamelCase_									=     str(Path(_SCREAMING_SNAKE_CASE).resolve())
			assert cached_path(_SCREAMING_SNAKE_CASE) == text_file
			# relative path
			UpperCamelCase_									=     str(Path(_SCREAMING_SNAKE_CASE).resolve().relative_to(Path(os.getcwd())))
			assert cached_path(_SCREAMING_SNAKE_CASE) == text_file






def     _snake_case    (__lowercase):
			# absolute path
			UpperCamelCase_									=     str(tmp_path.resolve() / '__missing_file__.txt')
			with pytest.raises(_SCREAMING_SNAKE_CASE):
						cached_path(_SCREAMING_SNAKE_CASE)
			# relative path
			UpperCamelCase_									=     './__missing_file__.txt'
			with pytest.raises(_SCREAMING_SNAKE_CASE):
						cached_path(_SCREAMING_SNAKE_CASE)






def     _snake_case    (__lowercase):
			UpperCamelCase_									=     get_from_cache(f"""tmp://{tmpfs_file}""")
			with open(_SCREAMING_SNAKE_CASE) as f:
						UpperCamelCase_									=     f.read()
			assert output_file_content == FILE_CONTENT






@patch('datasets.config.HF_DATASETS_OFFLINE'    ,      _SCREAMING_SNAKE_CASE)
def     _snake_case    ():
			with pytest.raises(_SCREAMING_SNAKE_CASE):
						cached_path('https://huggingface.co')






@patch('datasets.config.HF_DATASETS_OFFLINE'    ,      _SCREAMING_SNAKE_CASE)
def     _snake_case    (__lowercase):
			UpperCamelCase_									=     tmp_path_factory.mktemp('data') / 'file.html'
			with pytest.raises(_SCREAMING_SNAKE_CASE):
						http_get('https://huggingface.co'    ,      temp_file=_SCREAMING_SNAKE_CASE)
			with pytest.raises(_SCREAMING_SNAKE_CASE):
						http_head('https://huggingface.co')






@patch('datasets.config.HF_DATASETS_OFFLINE'    ,      _SCREAMING_SNAKE_CASE)
def     _snake_case    (__lowercase):
			UpperCamelCase_									=     tmp_path_factory.mktemp('data') / 'file.html'
			with pytest.raises(_SCREAMING_SNAKE_CASE):
						ftp_get('ftp://huggingface.co'    ,      temp_file=_SCREAMING_SNAKE_CASE)
			with pytest.raises(_SCREAMING_SNAKE_CASE):
						ftp_head('ftp://huggingface.co')






@patch('datasets.config.HF_DATASETS_OFFLINE'    ,      _SCREAMING_SNAKE_CASE)
def     _snake_case    (__lowercase):
			UpperCamelCase_									=     tmp_path_factory.mktemp('data') / 'file.html'
			with pytest.raises(_SCREAMING_SNAKE_CASE):
						fsspec_get('s3://huggingface.co'    ,      temp_file=_SCREAMING_SNAKE_CASE)
			with pytest.raises(_SCREAMING_SNAKE_CASE):
						fsspec_head('s3://huggingface.co')













def     _snake_case    (__lowercase    ,      __lowercase):
   _enforce_args(__lowercase    ,      __lowercase)
   if n == 0:
      return 0
   UpperCamelCase_									=     float('-inf')
   for i in range(1    ,      n + 1):
      UpperCamelCase_									=     max(
          __lowercase    ,      prices[i - 1] + naive_cut_rod_recursive(n - i    ,      __lowercase))

   return max_revue






def     _snake_case    (__lowercase    ,      __lowercase):
   _enforce_args(__lowercase    ,      __lowercase)
   UpperCamelCase_									=     [float('-inf') for _ in range(n + 1)]
   return _top_down_cut_rod_recursive(__lowercase    ,      __lowercase    ,      __lowercase)






def     _snake_case    (__lowercase    ,      __lowercase    ,      __lowercase):
   if max_rev[n] >= 0:
      return max_rev[n]
   elif n == 0:
      return 0
   else:
      UpperCamelCase_									=     float('-inf')
      for i in range(1    ,      n + 1):
         UpperCamelCase_									=     max(
             __lowercase    ,      prices[i - 1] + _top_down_cut_rod_recursive(n - i    ,      __lowercase    ,      __lowercase)    ,      )

      UpperCamelCase_									=     max_revenue

   return max_rev[n]






def     _snake_case    (__lowercase    ,      __lowercase):
   _enforce_args(__lowercase    ,      __lowercase)

   # length(max_rev) = n + 1, to accommodate for the revenue obtainable from a rod of
   # length 0.
   UpperCamelCase_									=     [float('-inf') for _ in range(n + 1)]
   UpperCamelCase_									=     0

   for i in range(1    ,      n + 1):
      UpperCamelCase_									=     max_rev[i]
      for j in range(1    ,      i + 1):
         UpperCamelCase_									=     max(__lowercase    ,      prices[j - 1] + max_rev[i - j])

      UpperCamelCase_									=     max_revenue_i

   return max_rev[n]






def     _snake_case    (__lowercase    ,      __lowercase):
   if n < 0:
      UpperCamelCase_									=     f"""n must be greater than or equal to 0. Got n = {n}"""
      raise ValueError(__lowercase)

   if n > len(__lowercase):
      UpperCamelCase_									=     (
          'Each integral piece of rod must have a corresponding price. '
          f"""Got n = {n} but length of prices = {len(__lowercase)}"""
      )
      raise ValueError(__lowercase)






def     _snake_case    ():
   UpperCamelCase_									=     [6, 10, 12, 15, 20, 23]
   UpperCamelCase_									=     len(__lowercase)

   # the best revenue comes from cutting the rod into 6 pieces, each
   # of length 1 resulting in a revenue of 6 * 6 = 36.
   UpperCamelCase_									=     36

   UpperCamelCase_									=     top_down_cut_rod(__lowercase    ,      __lowercase)
   UpperCamelCase_									=     bottom_up_cut_rod(__lowercase    ,      __lowercase)
   UpperCamelCase_									=     naive_cut_rod_recursive(__lowercase    ,      __lowercase)

   assert expected_max_revenue == max_rev_top_down
   assert max_rev_top_down == max_rev_bottom_up
   assert max_rev_bottom_up == max_rev_naive


if __name__ == "__main__":
 main()





