


from __future__ import annotations

from collections.abc import Iterator
from typing import Any







class 			lowercase    :




				def __init__( self				,       snake_case	):
											snake_case_          =   data
											snake_case_          =   None







class 			lowercase    :




				def __init__( self	):
											snake_case_          =   None
											snake_case_          =   None




				def __iter__( self	):
											snake_case_          =   self.head
											while self.head:
																		yield node.data
																		snake_case_          =   node.next
																		if node == self.head:
																									break




				def __len__( self	):
											return sum(1 for _ in self	)




				def __repr__( self	):
											return "->".join(str(UpperCamelCase__	) for item in iter(self	)	)




				def    a							( self				,       snake_case	):
											self.insert_nth(len(self	)				,       UpperCamelCase__	)




				def    a							( self				,       snake_case	):
											self.insert_nth(0				,       UpperCamelCase__	)




				def    a							( self				,       snake_case				,       snake_case	):



											if index < 0 or index > len(self	):
																		raise IndexError('list index out of range.'	)
											snake_case_          =   Node(UpperCamelCase__	)
											if self.head is None:
																		snake_case_          =   new_node  # first node points itself
																		snake_case_          =   snake_case_          =   new_node
											elif index == 0:  # insert at head
																		snake_case_          =   self.head
																		snake_case_          =   snake_case_          =   new_node
											else:
																		snake_case_          =   self.head
																		for _ in range(index - 1	):
																									snake_case_          =   temp.next
																		snake_case_          =   temp.next
																		snake_case_          =   new_node
																		if index == len(self	) - 1:  # insert at tail
																									snake_case_          =   new_node




				def    a							( self	):
											return self.delete_nth(0	)




				def    a							( self	):
											return self.delete_nth(len(self	) - 1	)




				def    a							( self				,       snake_case = 0	):



											if not 0 <= index < len(self	):
																		raise IndexError('list index out of range.'	)
											snake_case_          =   self.head
											if self.head == self.tail:  # just one node
																		snake_case_          =   snake_case_          =   None
											elif index == 0:  # delete head node
																		snake_case_          =   self.tail.next.next
																		snake_case_          =   self.head.next
											else:
																		snake_case_          =   self.head
																		for _ in range(index - 1	):
																									snake_case_          =   temp.next
																		snake_case_          =   temp.next
																		snake_case_          =   temp.next.next
																		if index == len(self	) - 1:  # delete at tail
																									snake_case_          =   temp
											return delete_node.data




				def    a							( self	):
											return len(self	) == 0





def  __lowerCamelCase     (			):







							'''simple docstring'''






							snake_case_          =   CircularLinkedList()
							assert len(__UpperCamelCase				) == 0
							assert circular_linked_list.is_empty() is True
							assert str(__UpperCamelCase				) == ""

							try:
														circular_linked_list.delete_front()
														raise AssertionError  # This should not happen
							except IndexError:
														assert True  # This should happen

							try:
														circular_linked_list.delete_tail()
														raise AssertionError  # This should not happen
							except IndexError:
														assert True  # This should happen

							try:
														circular_linked_list.delete_nth(-1				)
														raise AssertionError
							except IndexError:
														assert True

							try:
														circular_linked_list.delete_nth(0				)
														raise AssertionError
							except IndexError:
														assert True

							assert circular_linked_list.is_empty() is True
							for i in range(5				):
														assert len(__UpperCamelCase				) == i
														circular_linked_list.insert_nth(__UpperCamelCase       ,							i + 1				)
							assert str(__UpperCamelCase				) == "->".join(str(__UpperCamelCase				) for i in range(1       ,							6				)				)

							circular_linked_list.insert_tail(6				)
							assert str(__UpperCamelCase				) == "->".join(str(__UpperCamelCase				) for i in range(1       ,							7				)				)
							circular_linked_list.insert_head(0				)
							assert str(__UpperCamelCase				) == "->".join(str(__UpperCamelCase				) for i in range(0       ,							7				)				)

							assert circular_linked_list.delete_front() == 0
							assert circular_linked_list.delete_tail() == 6
							assert str(__UpperCamelCase				) == "->".join(str(__UpperCamelCase				) for i in range(1       ,							6				)				)
							assert circular_linked_list.delete_nth(2				) == 3

							circular_linked_list.insert_nth(2       ,							3				)
							assert str(__UpperCamelCase				) == "->".join(str(__UpperCamelCase				) for i in range(1       ,							6				)				)

							assert circular_linked_list.is_empty() is False


if __name__ == "__main__":
					import doctest

					doctest.testmod()







import os
import sys
import unittest


_UpperCAmelCase		:       str						    =	os.path.abspath(os.path.dirname(os.path.dirname(os.path.dirname(__file__))))
sys.path.append(os.path.join(git_repo_path, """utils"""))

import get_test_info  # noqa: E402
from get_test_info import (  # noqa: E402
    get_model_to_test_mapping,
    get_model_to_tester_mapping,
    get_test_to_tester_mapping,
)


_UpperCAmelCase		:       List[Any]						    =	os.path.join("""tests""", """models""", """bert""", """test_modeling_bert.py""")
_UpperCAmelCase		:       Dict						    =	os.path.join("""tests""", """models""", """blip""", """test_modeling_blip.py""")







class 			lowercase    (	unittest.TestCase      ):




				def    a							( self	):
											snake_case_          =   get_test_to_tester_mapping(snake_case	)
											snake_case_          =   get_test_to_tester_mapping(snake_case	)

											snake_case_          =   {'BertModelTest': 'BertModelTester'}

											snake_case_          =   {
											    'BlipModelTest': 'BlipModelTester',
											    'BlipTextImageModelTest': 'BlipTextImageModelsModelTester',
											    'BlipTextModelTest': 'BlipTextModelTester',
											    'BlipTextRetrievalModelTest': 'BlipTextRetrievalModelTester',
											    'BlipVQAModelTest': 'BlipVQAModelTester',
											    'BlipVisionModelTest': 'BlipVisionModelTester',
											}

											self.assertEqual(get_test_info.to_json(snake_case	)				,       snake_case	)
											self.assertEqual(get_test_info.to_json(snake_case	)				,       snake_case	)




				def    a							( self	):
											snake_case_          =   get_model_to_test_mapping(snake_case	)
											snake_case_          =   get_model_to_test_mapping(snake_case	)

											snake_case_          =   {
											    'BertForMaskedLM': ['BertModelTest'],
											    'BertForMultipleChoice': ['BertModelTest'],
											    'BertForNextSentencePrediction': ['BertModelTest'],
											    'BertForPreTraining': ['BertModelTest'],
											    'BertForQuestionAnswering': ['BertModelTest'],
											    'BertForSequenceClassification': ['BertModelTest'],
											    'BertForTokenClassification': ['BertModelTest'],
											    'BertLMHeadModel': ['BertModelTest'],
											    'BertModel': ['BertModelTest'],
											}

											snake_case_          =   {
											    'BlipForConditionalGeneration': ['BlipTextImageModelTest'],
											    'BlipForImageTextRetrieval': ['BlipTextRetrievalModelTest'],
											    'BlipForQuestionAnswering': ['BlipVQAModelTest'],
											    'BlipModel': ['BlipModelTest'],
											    'BlipTextModel': ['BlipTextModelTest'],
											    'BlipVisionModel': ['BlipVisionModelTest'],
											}

											self.assertEqual(get_test_info.to_json(snake_case	)				,       snake_case	)
											self.assertEqual(get_test_info.to_json(snake_case	)				,       snake_case	)




				def    a							( self	):
											snake_case_          =   get_model_to_tester_mapping(snake_case	)
											snake_case_          =   get_model_to_tester_mapping(snake_case	)

											snake_case_          =   {
											    'BertForMaskedLM': ['BertModelTester'],
											    'BertForMultipleChoice': ['BertModelTester'],
											    'BertForNextSentencePrediction': ['BertModelTester'],
											    'BertForPreTraining': ['BertModelTester'],
											    'BertForQuestionAnswering': ['BertModelTester'],
											    'BertForSequenceClassification': ['BertModelTester'],
											    'BertForTokenClassification': ['BertModelTester'],
											    'BertLMHeadModel': ['BertModelTester'],
											    'BertModel': ['BertModelTester'],
											}

											snake_case_          =   {
											    'BlipForConditionalGeneration': ['BlipTextImageModelsModelTester'],
											    'BlipForImageTextRetrieval': ['BlipTextRetrievalModelTester'],
											    'BlipForQuestionAnswering': ['BlipVQAModelTester'],
											    'BlipModel': ['BlipModelTester'],
											    'BlipTextModel': ['BlipTextModelTester'],
											    'BlipVisionModel': ['BlipVisionModelTester'],
											}

											self.assertEqual(get_test_info.to_json(snake_case	)				,       snake_case	)
											self.assertEqual(get_test_info.to_json(snake_case	)				,       snake_case	)




