






'''simple docstring'''







def 				SCREAMING_SNAKE_CASE_ (UpperCamelCase   )   -> int:
							if not isinstance(UpperCamelCase       ,    UpperCamelCase   ):
														raise ValueError("""Input must be an integer"""   )
							if input_num <= 0:
														raise ValueError("""Input must be positive"""   )
							return sum(
							    divisor for divisor in range(1       ,    input_num // 2 + 1   ) if input_num % divisor == 0   )


if __name__ == "__main__":
			import doctest

			doctest.testmod()









'''simple docstring'''







import inspect
import math
import tempfile
import unittest

import numpy as np

from transformers import ViTMAEConfig
from transformers.testing_utils import require_torch, require_vision, slow, torch_device
from transformers.utils import cached_property, is_torch_available, is_vision_available

from ...test_configuration_common import ConfigTester
from ...test_modeling_common import ModelTesterMixin, floats_tensor, ids_tensor
from ...test_pipeline_mixin import PipelineTesterMixin


if is_torch_available():
			import torch
			from torch import nn

			from transformers import ViTMAEForPreTraining, ViTMAEModel
			from transformers.models.vit.modeling_vit import VIT_PRETRAINED_MODEL_ARCHIVE_LIST


if is_vision_available():
			from PIL import Image

			from transformers import ViTImageProcessor

class _lowercase			:




							def __init__(							self:       List[str]    ,							UpperCamelCase__:       Union[str, Any]    ,							UpperCamelCase__:       List[str]=13    ,							UpperCamelCase__:       Optional[int]=30    ,							UpperCamelCase__:       Optional[int]=2    ,							UpperCamelCase__:       List[str]=3    ,							UpperCamelCase__:       List[str]=True    ,							UpperCamelCase__:       Any=True    ,							UpperCamelCase__:       List[Any]=32    ,							UpperCamelCase__:       Any=5    ,							UpperCamelCase__:       Optional[Any]=4    ,							UpperCamelCase__:       Dict=37    ,							UpperCamelCase__:       List[Any]="gelu"    ,							UpperCamelCase__:       Union[str, Any]=0.1    ,							UpperCamelCase__:       Union[str, Any]=0.1    ,							UpperCamelCase__:       List[Any]=10    ,							UpperCamelCase__:       Tuple=0.02    ,							UpperCamelCase__:       Optional[int]=3    ,							UpperCamelCase__:       Dict=0.6    ,							UpperCamelCase__:       int=None    ,							):
														lowerCamelCase__      :			Dict 						= parent
														lowerCamelCase__      :			Optional[Any] 						= batch_size
														lowerCamelCase__      :			Optional[int] 						= image_size
														lowerCamelCase__      :			Optional[Any] 						= patch_size
														lowerCamelCase__      :			Any 						= num_channels
														lowerCamelCase__      :			Any 						= is_training
														lowerCamelCase__      :			Union[str, Any] 						= use_labels
														lowerCamelCase__      :			List[str] 						= hidden_size
														lowerCamelCase__      :			List[str] 						= num_hidden_layers
														lowerCamelCase__      :			List[Any] 						= num_attention_heads
														lowerCamelCase__      :			str 						= intermediate_size
														lowerCamelCase__      :			str 						= hidden_act
														lowerCamelCase__      :			Any 						= hidden_dropout_prob
														lowerCamelCase__      :			Optional[int] 						= attention_probs_dropout_prob
														lowerCamelCase__      :			List[Any] 						= type_sequence_label_size
														lowerCamelCase__      :			int 						= initializer_range
														lowerCamelCase__      :			List[str] 						= mask_ratio
														lowerCamelCase__      :			List[Any] 						= scope

														# in ViTMAE, the expected sequence length = (num_patches + 1) * (1 - config.mask_ratio), rounded above
														# (we add 1 for the [CLS] token)
														lowerCamelCase__      :			str 						= (image_size // patch_size) ** 2
														lowerCamelCase__      :			Optional[int] 						= int(math.ceil((1 - mask_ratio) * (num_patches + 1)  )  )




							def 	lowerCamelCase_       (							self:       Optional[int]  ):
														lowerCamelCase__      :			Tuple 						= floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size]  )

														lowerCamelCase__      :			Optional[int] 						= None
														if self.use_labels:
																					lowerCamelCase__      :			List[str] 						= ids_tensor([self.batch_size]    ,							self.type_sequence_label_size  )

														lowerCamelCase__      :			Any 						= self.get_config()

														return config, pixel_values, labels




							def 	lowerCamelCase_       (							self:       str  ):
														return ViTMAEConfig(
														    image_size=self.image_size    ,							patch_size=self.patch_size    ,							num_channels=self.num_channels    ,							hidden_size=self.hidden_size    ,							num_hidden_layers=self.num_hidden_layers    ,							num_attention_heads=self.num_attention_heads    ,							intermediate_size=self.intermediate_size    ,							hidden_act=self.hidden_act    ,							hidden_dropout_prob=self.hidden_dropout_prob    ,							attention_probs_dropout_prob=self.attention_probs_dropout_prob    ,							is_decoder=UpperCamelCase__    ,							initializer_range=self.initializer_range    ,							mask_ratio=self.mask_ratio    ,							)




							def 	lowerCamelCase_       (							self:       List[Any]    ,							UpperCamelCase__:       Optional[int]    ,							UpperCamelCase__:       Optional[int]    ,							UpperCamelCase__:       int  ):
														lowerCamelCase__      :			Tuple 						= ViTMAEModel(config=UpperCamelCase__  )
														model.to(UpperCamelCase__  )
														model.eval()
														lowerCamelCase__      :			List[Any] 						= model(UpperCamelCase__  )
														self.parent.assertEqual(result.last_hidden_state.shape    ,							(self.batch_size, self.seq_length, self.hidden_size)  )




							def 	lowerCamelCase_       (							self:       str    ,							UpperCamelCase__:       Union[str, Any]    ,							UpperCamelCase__:       List[Any]    ,							UpperCamelCase__:       Dict  ):
														lowerCamelCase__      :			int 						= ViTMAEForPreTraining(UpperCamelCase__  )
														model.to(UpperCamelCase__  )
														model.eval()
														lowerCamelCase__      :			Optional[int] 						= model(UpperCamelCase__  )
														lowerCamelCase__      :			Any 						= (self.image_size // self.patch_size) ** 2
														lowerCamelCase__      :			str 						= self.patch_size**2 * self.num_channels
														self.parent.assertEqual(result.logits.shape    ,							(self.batch_size, num_patches, expected_num_channels)  )

														# test greyscale images
														lowerCamelCase__      :			Dict 						= 1
														lowerCamelCase__      :			Optional[int] 						= ViTMAEForPreTraining(UpperCamelCase__  )
														model.to(UpperCamelCase__  )
														model.eval()
														lowerCamelCase__      :			Dict 						= floats_tensor([self.batch_size, 1, self.image_size, self.image_size]  )
														lowerCamelCase__      :			Optional[Any] 						= model(UpperCamelCase__  )
														lowerCamelCase__      :			Tuple 						= self.patch_size**2
														self.parent.assertEqual(result.logits.shape    ,							(self.batch_size, num_patches, expected_num_channels)  )




							def 	lowerCamelCase_       (							self:       Any  ):
														lowerCamelCase__      :			Optional[int] 						= self.prepare_config_and_inputs()
														lowerCamelCase__						,	lowerCamelCase__						,	lowerCamelCase__      :			Any 						= config_and_inputs
														lowerCamelCase__      :			Optional[int] 						= {"""pixel_values""": pixel_values}
														return config, inputs_dict



@require_torch
class _lowercase			(       _lowercase       ,   _lowercase       ,   unittest.TestCase	):
							a          = (ViTMAEModel, ViTMAEForPreTraining) if is_torch_available() else ()
							a          = {"""feature-extraction""": ViTMAEModel} if is_torch_available() else {}

							a          = False
							a          = False
							a          = False
							a          = False




							def 	lowerCamelCase_       (							self:       Any  ):
														lowerCamelCase__      :			Tuple 						= ViTMAEModelTester(self  )
														lowerCamelCase__      :			Union[str, Any] 						= ConfigTester(self    ,							config_class=UpperCamelCase__    ,							has_text_modality=UpperCamelCase__    ,							hidden_size=37  )




							def 	lowerCamelCase_       (							self:       Union[str, Any]  ):
														self.config_tester.run_common_tests()




							@unittest.skip(reason="""ViTMAE does not use inputs_embeds"""  )
							def 	lowerCamelCase_       (							self:       Dict  ):
														pass




							def 	lowerCamelCase_       (							self:       List[str]  ):
														lowerCamelCase__						,	lowerCamelCase__      :			str 						= self.model_tester.prepare_config_and_inputs_for_common()

														for model_class in self.all_model_classes:
																					lowerCamelCase__      :			str 						= model_class(UpperCamelCase__  )
																					self.assertIsInstance(model.get_input_embeddings()    ,							(nn.Module)  )
																					lowerCamelCase__      :			Optional[Any] 						= model.get_output_embeddings()
																					self.assertTrue(x is None or isinstance(UpperCamelCase__    ,							nn.Linear  )  )




							def 	lowerCamelCase_       (							self:       List[Any]  ):
														lowerCamelCase__						,	lowerCamelCase__      :			Union[str, Any] 						= self.model_tester.prepare_config_and_inputs_for_common()

														for model_class in self.all_model_classes:
																					lowerCamelCase__      :			Any 						= model_class(UpperCamelCase__  )
																					lowerCamelCase__      :			str 						= inspect.signature(model.forward  )
																					# signature.parameters is an OrderedDict => so arg_names order is deterministic
																					lowerCamelCase__      :			Any 						= [*signature.parameters.keys()]

																					lowerCamelCase__      :			List[str] 						= ["""pixel_values"""]
																					self.assertListEqual(arg_names[:1]    ,							UpperCamelCase__  )




							def 	lowerCamelCase_       (							self:       Union[str, Any]  ):
														lowerCamelCase__      :			Union[str, Any] 						= self.model_tester.prepare_config_and_inputs()
														self.model_tester.create_and_check_model(*UpperCamelCase__  )




							def 	lowerCamelCase_       (							self:       Any  ):
														lowerCamelCase__      :			int 						= self.model_tester.prepare_config_and_inputs()
														self.model_tester.create_and_check_for_pretraining(*UpperCamelCase__  )




							def 	lowerCamelCase_       (							self:       Optional[int]    ,							UpperCamelCase__:       Union[str, Any]    ,							UpperCamelCase__:       Dict    ,							UpperCamelCase__:       Optional[int]  ):
														# make masks reproducible
														np.random.seed(2  )

														lowerCamelCase__      :			Tuple 						= int((pt_model.config.image_size // pt_model.config.patch_size) ** 2  )
														lowerCamelCase__      :			List[str] 						= np.random.uniform(size=(self.model_tester.batch_size, num_patches)  )
														lowerCamelCase__      :			Tuple 						= torch.from_numpy(UpperCamelCase__  )

														# Add `noise` argument.
														# PT inputs will be prepared in `super().check_pt_tf_models()` with this added `noise` argument
														lowerCamelCase__      :			Tuple 						= pt_noise

														super().check_pt_tf_models(UpperCamelCase__    ,							UpperCamelCase__    ,							UpperCamelCase__  )




							def 	lowerCamelCase_       (							self:       str  ):
														lowerCamelCase__						,	lowerCamelCase__      :			Optional[Any] 						= self.model_tester.prepare_config_and_inputs_for_common()

														for model_class in self.all_model_classes:
																					lowerCamelCase__      :			Union[str, Any] 						= model_class(UpperCamelCase__  )
																					model.to(UpperCamelCase__  )
																					model.eval()
																					# make random mask reproducible
																					torch.manual_seed(2  )
																					with torch.no_grad():
																												lowerCamelCase__      :			Optional[int] 						= model(**self._prepare_for_class(UpperCamelCase__    ,							UpperCamelCase__  )  )

																					lowerCamelCase__      :			Optional[int] 						= outputs[0].cpu().numpy()
																					lowerCamelCase__      :			List[str] 						= 0

																					with tempfile.TemporaryDirectory() as tmpdirname:
																												model.save_pretrained(UpperCamelCase__  )
																												lowerCamelCase__      :			List[str] 						= model_class.from_pretrained(UpperCamelCase__  )
																												model.to(UpperCamelCase__  )
																												# make random mask reproducible
																												torch.manual_seed(2  )
																												with torch.no_grad():
																																			lowerCamelCase__      :			Tuple 						= model(**self._prepare_for_class(UpperCamelCase__    ,							UpperCamelCase__  )  )

																												# Make sure we don't have nans
																												lowerCamelCase__      :			Dict 						= after_outputs[0].cpu().numpy()
																												lowerCamelCase__      :			Tuple 						= 0
																												lowerCamelCase__      :			Union[str, Any] 						= np.amax(np.abs(out_a - out_a  )  )
																												self.assertLessEqual(UpperCamelCase__    ,							1e-5  )




							@unittest.skip(
							    reason="""ViTMAE returns a random mask + ids_restore in each forward pass. See test_save_load
    to get deterministic results."""  )
							def 	lowerCamelCase_       (							self:       int  ):
														pass




							@unittest.skip(
							    reason="""ViTMAE returns a random mask + ids_restore in each forward pass. See test_save_load
    to get deterministic results."""  )
							def 	lowerCamelCase_       (							self:       Any  ):
														pass




							@unittest.skip(
							    reason="""ViTMAE returns a random mask + ids_restore in each forward pass. See test_save_load
    to get deterministic results."""  )
							def 	lowerCamelCase_       (							self:       List[str]  ):
														pass




							@unittest.skip(reason="""ViTMAE returns a random mask + ids_restore in each forward pass. See test_save_load"""  )
							def 	lowerCamelCase_       (							self:       Tuple  ):
														pass




							@unittest.skip("""Will be fixed soon by reducing the size of the model used for common tests."""  )
							def 	lowerCamelCase_       (							self:       Optional[int]  ):
														pass




							@slow
							def 	lowerCamelCase_       (							self:       List[str]  ):
														for model_name in VIT_PRETRAINED_MODEL_ARCHIVE_LIST[:1]:
																					lowerCamelCase__      :			Tuple 						= ViTMAEModel.from_pretrained(UpperCamelCase__  )
																					self.assertIsNotNone(UpperCamelCase__  )





def 				SCREAMING_SNAKE_CASE_ ()   -> List[Any]:
							lowerCamelCase__      :			Union[str, Any] 						= Image.open("""./tests/fixtures/tests_samples/COCO/000000039769.png"""   )
							return image



@require_torch
@require_vision
class _lowercase			(       unittest.TestCase	):




							@cached_property
							def 	lowerCamelCase_       (							self:       List[str]  ):
														return ViTImageProcessor.from_pretrained("""facebook/vit-mae-base"""  ) if is_vision_available() else None




							@slow
							def 	lowerCamelCase_       (							self:       Tuple  ):
														# make random mask reproducible across the PT and TF model
														np.random.seed(2  )

														lowerCamelCase__      :			str 						= ViTMAEForPreTraining.from_pretrained("""facebook/vit-mae-base"""  ).to(UpperCamelCase__  )

														lowerCamelCase__      :			Tuple 						= self.default_image_processor
														lowerCamelCase__      :			List[str] 						= prepare_img()
														lowerCamelCase__      :			int 						= image_processor(images=UpperCamelCase__    ,							return_tensors="""pt"""  ).to(UpperCamelCase__  )

														# prepare a noise vector that will be also used for testing the TF model
														# (this way we can ensure that the PT and TF models operate on the same inputs)
														lowerCamelCase__      :			List[str] 						= ViTMAEConfig()
														lowerCamelCase__      :			int 						= int((vit_mae_config.image_size // vit_mae_config.patch_size) ** 2  )
														lowerCamelCase__      :			Any 						= np.random.uniform(size=(1, num_patches)  )

														# forward pass
														with torch.no_grad():
																					lowerCamelCase__      :			List[Any] 						= model(**UpperCamelCase__    ,							noise=torch.from_numpy(UpperCamelCase__  ).to(device=UpperCamelCase__  )  )

														# verify the logits
														lowerCamelCase__      :			List[str] 						= torch.Size((1, 196, 768)  )
														self.assertEqual(outputs.logits.shape    ,							UpperCamelCase__  )

														lowerCamelCase__      :			str 						= torch.tensor(
														    [[-0.0_548, -1.7_023, -0.9_325], [0.3_721, -0.5_670, -0.2_233], [0.8_235, -1.3_878, -0.3_524]]  )

														self.assertTrue(torch.allclose(outputs.logits[0, :3, :3]    ,							expected_slice.to(UpperCamelCase__  )    ,							atol=1e-4  )  )

