
import unittest

from transformers.utils.backbone_utils import (
    BackboneMixin,
    get_aligned_output_features_output_indices,
    verify_out_features_out_indices,
)





class    __A(					unittest.TestCase							):

					def  lowercase__   (						self       :  Tuple ):
												lowerCamelCase_					=       ["""a""", """b""", """c"""]

												# Defaults to last layer if both are None
												lowerCamelCase_	, lowerCamelCase_					=       get_aligned_output_features_output_indices(__UpperCamelCase ,       __UpperCamelCase ,       __UpperCamelCase )
												self.assertEqual(__UpperCamelCase ,       ["""c"""] )
												self.assertEqual(__UpperCamelCase ,       [2] )

												# Out indices set to match out features
												lowerCamelCase_	, lowerCamelCase_					=       get_aligned_output_features_output_indices(["""a""", """c"""] ,       __UpperCamelCase ,       __UpperCamelCase )
												self.assertEqual(__UpperCamelCase ,       ["""a""", """c"""] )
												self.assertEqual(__UpperCamelCase ,       [0, 2] )

												# Out features set to match out indices
												lowerCamelCase_	, lowerCamelCase_					=       get_aligned_output_features_output_indices(__UpperCamelCase ,       [0, 2] ,       __UpperCamelCase )
												self.assertEqual(__UpperCamelCase ,       ["""a""", """c"""] )
												self.assertEqual(__UpperCamelCase ,       [0, 2] )

												# Out features selected from negative indices
												lowerCamelCase_	, lowerCamelCase_					=       get_aligned_output_features_output_indices(__UpperCamelCase ,       [-3, -1] ,       __UpperCamelCase )
												self.assertEqual(__UpperCamelCase ,       ["""a""", """c"""] )
												self.assertEqual(__UpperCamelCase ,       [-3, -1] )

					def  lowercase__   (						self       :  Optional[Any] ):
												# Stage names must be set
												with self.assertRaises(__UpperCamelCase ):
																			verify_out_features_out_indices(["""a""", """b"""] ,       (0, 1) ,       __UpperCamelCase )

												# Out features must be a list
												with self.assertRaises(__UpperCamelCase ):
																			verify_out_features_out_indices(("""a""", """b""") ,       (0, 1) ,       ["""a""", """b"""] )

												# Out features must be a subset of stage names
												with self.assertRaises(__UpperCamelCase ):
																			verify_out_features_out_indices(["""a""", """b"""] ,       (0, 1) ,       ["""a"""] )

												# Out indices must be a list or tuple
												with self.assertRaises(__UpperCamelCase ):
																			verify_out_features_out_indices(__UpperCamelCase ,       0 ,       ["""a""", """b"""] )

												# Out indices must be a subset of stage names
												with self.assertRaises(__UpperCamelCase ):
																			verify_out_features_out_indices(__UpperCamelCase ,       (0, 1) ,       ["""a"""] )

												# Out features and out indices must be the same length
												with self.assertRaises(__UpperCamelCase ):
																			verify_out_features_out_indices(["""a""", """b"""] ,       (0,) ,       ["""a""", """b""", """c"""] )

												# Out features should match out indices
												with self.assertRaises(__UpperCamelCase ):
																			verify_out_features_out_indices(["""a""", """b"""] ,       (0, 2) ,       ["""a""", """b""", """c"""] )

												# Out features and out indices should be in order
												with self.assertRaises(__UpperCamelCase ):
																			verify_out_features_out_indices(["""b""", """a"""] ,       (0, 1) ,       ["""a""", """b"""] )

												# Check passes with valid inputs
												verify_out_features_out_indices(["""a""", """b""", """d"""] ,       (0, 1, -1) ,       ["""a""", """b""", """c""", """d"""] )



					def  lowercase__   (						self       :  List[Any] ):
												lowerCamelCase_					=       BackboneMixin()

												lowerCamelCase_					=       ["""a""", """b""", """c"""]
												lowerCamelCase_					=       ["""a""", """c"""]
												lowerCamelCase_					=       [0, 2]

												# Check that the output features and indices are set correctly
												self.assertEqual(backbone.out_features ,       ["""a""", """c"""] )
												self.assertEqual(backbone.out_indices ,       [0, 2] )

												# Check out features and indices are updated correctly
												lowerCamelCase_					=       ["""a""", """b"""]
												self.assertEqual(backbone.out_features ,       ["""a""", """b"""] )
												self.assertEqual(backbone.out_indices ,       [0, 1] )

												lowerCamelCase_					=       [-3, -1]
												self.assertEqual(backbone.out_features ,       ["""a""", """c"""] )
												self.assertEqual(backbone.out_indices ,       [-3, -1] )







def   __lowerCAmelCase    (				UpperCAmelCase__					:   int							)	->     int:

							if not isinstance(UpperCAmelCase__      ,					UpperCAmelCase__							):
														raise ValueError("""multiplicative_persistence() only accepts integral values"""							)
							if num < 0:
														raise ValueError("""multiplicative_persistence() does not accept negative values"""							)

							lowerCamelCase_					=       0
							lowerCamelCase_					=       str(UpperCAmelCase__							)

							while len(UpperCAmelCase__							) != 1:
														lowerCamelCase_					=       [int(UpperCAmelCase__							) for i in num_string]

														lowerCamelCase_					=       1
														for i in range(0      ,					len(UpperCAmelCase__							)							):
																					total *= numbers[i]

														lowerCamelCase_					=       str(UpperCAmelCase__							)

														steps += 1
							return steps



def   __lowerCAmelCase    (				UpperCAmelCase__					:   int							)	->     int:

							if not isinstance(UpperCAmelCase__      ,					UpperCAmelCase__							):
														raise ValueError("""additive_persistence() only accepts integral values"""							)
							if num < 0:
														raise ValueError("""additive_persistence() does not accept negative values"""							)

							lowerCamelCase_					=       0
							lowerCamelCase_					=       str(UpperCAmelCase__							)

							while len(UpperCAmelCase__							) != 1:
														lowerCamelCase_					=       [int(UpperCAmelCase__							) for i in num_string]

														lowerCamelCase_					=       0
														for i in range(0      ,					len(UpperCAmelCase__							)							):
																					total += numbers[i]

														lowerCamelCase_					=       str(UpperCAmelCase__							)

														steps += 1
							return steps


if __name__ == "__main__":
		import doctest

		doctest.testmod()





