



"""simple docstring"""






import pytest

from datasets.utils.sharding import _distribute_shards, _number_of_shards_in_gen_kwargs, _split_gen_kwargs


@pytest.mark.parametrize(
    "kwargs, expected"   ,[
        ({"num_shards": 0, "max_num_jobs": 1}, []),
        ({"num_shards": 10, "max_num_jobs": 1}, [range(10      )]),
        ({"num_shards": 10, "max_num_jobs": 10}, [range(__lowercase   ,i + 1      ) for i in range(10      )]),
        ({"num_shards": 1, "max_num_jobs": 10}, [range(1      )]),
        ({"num_shards": 10, "max_num_jobs": 3}, [range(0   ,4      ), range(4   ,7      ), range(7   ,10      )]),
        ({"num_shards": 3, "max_num_jobs": 10}, [range(0   ,1      ), range(1   ,2      ), range(2   ,3      )]),
    ]   ,)
def      _lowercase							(    __snake_case   ,__snake_case      )		->  Dict:
			__lowerCAmelCase :    List[Any]				=			_distribute_shards(**__lowercase      )
			assert out == expected


@pytest.mark.parametrize(
    "gen_kwargs, max_num_jobs, expected"   ,[
        ({"foo": 0}, 10, [{"foo": 0}]),
        ({"shards": [0, 1, 2, 3]}, 1, [{"shards": [0, 1, 2, 3]}]),
        ({"shards": [0, 1, 2, 3]}, 4, [{"shards": [0]}, {"shards": [1]}, {"shards": [2]}, {"shards": [3]}]),
        ({"shards": [0, 1]}, 4, [{"shards": [0]}, {"shards": [1]}]),
        ({"shards": [0, 1, 2, 3]}, 2, [{"shards": [0, 1]}, {"shards": [2, 3]}]),
    ]   ,)
def      _lowercase							(    __snake_case   ,__snake_case   ,__snake_case      )		->  Union[str, Any]:
			__lowerCAmelCase :    str				=			_split_gen_kwargs(__lowercase   ,__lowercase      )
			assert out == expected





@pytest.mark.parametrize(
    "gen_kwargs, expected"   ,[
        ({"foo": 0}, 1),
        ({"shards": [0]}, 1),
        ({"shards": [0, 1, 2, 3]}, 4),
        ({"shards": [0, 1, 2, 3], "foo": 0}, 4),
        ({"shards": [0, 1, 2, 3], "other": (0, 1)}, 4),
        ({"shards": [0, 1, 2, 3], "shards2": [0, 1]}, RuntimeError),
    ]   ,)
def      _lowercase							(    __snake_case   ,__snake_case      )		->  int:
			if expected is RuntimeError:
						with pytest.raises(__lowercase      ):
									_number_of_shards_in_gen_kwargs(__lowercase      )
			else:
						__lowerCAmelCase :    Dict				=			_number_of_shards_in_gen_kwargs(__lowercase      )
						assert out == expected







from __future__ import annotations



def  a__ (__lowercase							:list					,  __lowercase							:int | None = None					,  __lowercase							:int | None = None   )		-> None:
				if start is None:
								_A	:				Optional[int]   =      0

				if end is None:
								_A	:				Union[str, Any]   =      len(__lowercase   ) - 1

				if start >= end:
								return

				_A	:				Union[str, Any]   =      (start + end) // 2

				slowsort(__lowercase					,  __lowercase					,  __lowercase   )
				slowsort(__lowercase					,  mid + 1					,  __lowercase   )

				if sequence[end] < sequence[mid]:
								_A  ,				_A	:				Optional[int]   =      sequence[mid], sequence[end]

				slowsort(__lowercase					,  __lowercase					,  end - 1   )


if __name__ == "__main__":
	from doctest import testmod

	testmod()



