
import torch

from diffusers import CMStochasticIterativeScheduler

from .test_schedulers import SchedulerCommonTest







class 			__A( a			):
				snake_case_						   =    (CMStochasticIterativeScheduler,)
				snake_case_						   =    1_0




				def 				SCREAMING_SNAKE_CASE_		(     self		,     **_snake_case				)    ->      List[str]:


								'''simple docstring'''




								__a										=    {
								    '''num_train_timesteps''': 201,
								    '''sigma_min''': 0.002,
								    '''sigma_max''': 80.0,
								}

								config.update(**_snake_case				)
								return config




				def 				SCREAMING_SNAKE_CASE_		(     self				)    ->      str:


								'''simple docstring'''




								__a										=    10

								__a										=    self.get_scheduler_config()
								__a										=    self.scheduler_classes[0](**_snake_case				)

								scheduler.set_timesteps(_snake_case				)

								__a										=    scheduler.timesteps[0]
								__a										=    scheduler.timesteps[1]

								__a										=    self.dummy_sample
								__a										=    0.1 * sample

								__a										=    scheduler.step(_snake_case		,     _snake_case		,     _snake_case				).prev_sample
								__a										=    scheduler.step(_snake_case		,     _snake_case		,     _snake_case				).prev_sample

								self.assertEqual(output_a.shape		,     sample.shape				)
								self.assertEqual(output_a.shape		,     output_a.shape				)




				def 				SCREAMING_SNAKE_CASE_		(     self				)    ->      Union[str, Any]:


								'''simple docstring'''




								for timesteps in [10, 50, 100, 1_000]:
												self.check_over_configs(num_train_timesteps=_snake_case				)




				def 				SCREAMING_SNAKE_CASE_		(     self				)    ->      Tuple:


								'''simple docstring'''




								for clip_denoised in [True, False]:
												self.check_over_configs(clip_denoised=_snake_case				)




				def 				SCREAMING_SNAKE_CASE_		(     self				)    ->      Optional[Any]:


								'''simple docstring'''




								__a										=    self.scheduler_classes[0]
								__a										=    self.get_scheduler_config()
								__a										=    scheduler_class(**_snake_case				)

								__a										=    1
								scheduler.set_timesteps(_snake_case				)
								__a										=    scheduler.timesteps

								__a										=    torch.manual_seed(0				)

								__a										=    self.dummy_model()
								__a										=    self.dummy_sample_deter * scheduler.init_noise_sigma

								for i, t in enumerate(_snake_case				):
												# 1. scale model input
												__a										=    scheduler.scale_model_input(_snake_case		,     _snake_case				)

												# 2. predict noise residual
												__a										=    model(_snake_case		,     _snake_case				)

												# 3. predict previous sample x_t-1
												__a										=    scheduler.step(_snake_case		,     _snake_case		,     _snake_case		,     generator=_snake_case				).prev_sample

												__a										=    pred_prev_sample

								__a										=    torch.sum(torch.abs(_snake_case				)				)
								__a										=    torch.mean(torch.abs(_snake_case				)				)

								assert abs(result_sum.item() - 192.7614				) < 1E-2
								assert abs(result_mean.item() - 0.2510				) < 1E-3




				def 				SCREAMING_SNAKE_CASE_		(     self				)    ->      Any:


								'''simple docstring'''




								__a										=    self.scheduler_classes[0]
								__a										=    self.get_scheduler_config()
								__a										=    scheduler_class(**_snake_case				)

								__a										=    [106, 0]
								scheduler.set_timesteps(timesteps=_snake_case				)
								__a										=    scheduler.timesteps

								__a										=    torch.manual_seed(0				)

								__a										=    self.dummy_model()
								__a										=    self.dummy_sample_deter * scheduler.init_noise_sigma

								for t in timesteps:
												# 1. scale model input
												__a										=    scheduler.scale_model_input(_snake_case		,     _snake_case				)

												# 2. predict noise residual
												__a										=    model(_snake_case		,     _snake_case				)

												# 3. predict previous sample x_t-1
												__a										=    scheduler.step(_snake_case		,     _snake_case		,     _snake_case		,     generator=_snake_case				).prev_sample

												__a										=    pred_prev_sample

								__a										=    torch.sum(torch.abs(_snake_case				)				)
								__a										=    torch.mean(torch.abs(_snake_case				)				)

								assert abs(result_sum.item() - 347.6357				) < 1E-2
								assert abs(result_mean.item() - 0.4527				) < 1E-3




				def 				SCREAMING_SNAKE_CASE_		(     self				)    ->      str:


								'''simple docstring'''




								__a										=    self.scheduler_classes[0]
								__a										=    self.get_scheduler_config()
								__a										=    scheduler_class(**_snake_case				)

								__a										=    [39, 30, 12, 15, 0]

								with self.assertRaises(_snake_case		,     msg='''`timesteps` must be in descending order.'''				):
												scheduler.set_timesteps(timesteps=_snake_case				)




				def 				SCREAMING_SNAKE_CASE_		(     self				)    ->      Any:


								'''simple docstring'''




								__a										=    self.scheduler_classes[0]
								__a										=    self.get_scheduler_config()
								__a										=    scheduler_class(**_snake_case				)

								__a										=    [39, 30, 12, 1, 0]
								__a										=    len(_snake_case				)

								with self.assertRaises(_snake_case		,     msg='''Can only pass one of `num_inference_steps` or `timesteps`.'''				):
												scheduler.set_timesteps(num_inference_steps=_snake_case		,     timesteps=_snake_case				)




				def 				SCREAMING_SNAKE_CASE_		(     self				)    ->      List[str]:


								'''simple docstring'''




								__a										=    self.scheduler_classes[0]
								__a										=    self.get_scheduler_config()
								__a										=    scheduler_class(**_snake_case				)

								__a										=    [scheduler.config.num_train_timesteps]

								with self.assertRaises(
								    _snake_case		,     msg='''`timesteps` must start before `self.config.train_timesteps`: {scheduler.config.num_train_timesteps}}'''		,     ):
												scheduler.set_timesteps(timesteps=_snake_case				)
"""simple docstring"""






import tempfile

import torch

from diffusers import PNDMScheduler

from .test_schedulers import SchedulerCommonTest
class 				snake_case       ( __UpperCAmelCase				):




					"""simple docstring"""

					snake_case__				    = (PNDMScheduler,)
					snake_case__				    = (("num_inference_steps", 50),)







					def 		__lowerCAmelCase						(				self   :	List[str]    ,**lowerCamelCase__   :	str			):
									UpperCAmelCase__             =							{
									    'num_train_timesteps': 1_000,
									    'beta_start': 0.0_0_0_1,
									    'beta_end': 0.0_2,
									    'beta_schedule': 'linear',
									}

									config.update(**lowerCamelCase__			)
									return config







					def 		__lowerCAmelCase						(				self   :	str    ,lowerCamelCase__   :	Optional[Any]=0    ,**lowerCamelCase__   :	List[str]			):
									UpperCAmelCase__             =							dict(self.forward_default_kwargs			)
									UpperCAmelCase__             =							kwargs.pop('num_inference_steps'    ,lowerCamelCase__			)
									UpperCAmelCase__             =							self.dummy_sample
									UpperCAmelCase__             =							0.1 * sample
									UpperCAmelCase__             =							[residual + 0.2, residual + 0.1_5, residual + 0.1, residual + 0.0_5]

									for scheduler_class in self.scheduler_classes:
													UpperCAmelCase__             =							self.get_scheduler_config(**lowerCamelCase__			)
													UpperCAmelCase__             =							scheduler_class(**lowerCamelCase__			)
													scheduler.set_timesteps(lowerCamelCase__			)
													# copy over dummy past residuals
													UpperCAmelCase__             =							dummy_past_residuals[:]

													with tempfile.TemporaryDirectory() as tmpdirname:
																	scheduler.save_config(lowerCamelCase__			)
																	UpperCAmelCase__             =							scheduler_class.from_pretrained(lowerCamelCase__			)
																	new_scheduler.set_timesteps(lowerCamelCase__			)
																	# copy over dummy past residuals
																	UpperCAmelCase__             =							dummy_past_residuals[:]

													UpperCAmelCase__             =							scheduler.step_prk(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample
													UpperCAmelCase__             =							new_scheduler.step_prk(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample

													assert torch.sum(torch.abs(output - new_output			)			) < 1e-5, "Scheduler outputs are not identical"

													UpperCAmelCase__             =							scheduler.step_plms(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample
													UpperCAmelCase__             =							new_scheduler.step_plms(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample

													assert torch.sum(torch.abs(output - new_output			)			) < 1e-5, "Scheduler outputs are not identical"







					def 		__lowerCAmelCase						(				self   :	Tuple			):
									pass







					def 		__lowerCAmelCase						(				self   :	Dict    ,lowerCamelCase__   :	List[str]=0    ,**lowerCamelCase__   :	Tuple			):
									UpperCAmelCase__             =							dict(self.forward_default_kwargs			)
									UpperCAmelCase__             =							kwargs.pop('num_inference_steps'    ,lowerCamelCase__			)
									UpperCAmelCase__             =							self.dummy_sample
									UpperCAmelCase__             =							0.1 * sample
									UpperCAmelCase__             =							[residual + 0.2, residual + 0.1_5, residual + 0.1, residual + 0.0_5]

									for scheduler_class in self.scheduler_classes:
													UpperCAmelCase__             =							self.get_scheduler_config()
													UpperCAmelCase__             =							scheduler_class(**lowerCamelCase__			)
													scheduler.set_timesteps(lowerCamelCase__			)

													# copy over dummy past residuals (must be after setting timesteps)
													UpperCAmelCase__             =							dummy_past_residuals[:]

													with tempfile.TemporaryDirectory() as tmpdirname:
																	scheduler.save_config(lowerCamelCase__			)
																	UpperCAmelCase__             =							scheduler_class.from_pretrained(lowerCamelCase__			)
																	# copy over dummy past residuals
																	new_scheduler.set_timesteps(lowerCamelCase__			)

																	# copy over dummy past residual (must be after setting timesteps)
																	UpperCAmelCase__             =							dummy_past_residuals[:]

													UpperCAmelCase__             =							scheduler.step_prk(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample
													UpperCAmelCase__             =							new_scheduler.step_prk(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample

													assert torch.sum(torch.abs(output - new_output			)			) < 1e-5, "Scheduler outputs are not identical"

													UpperCAmelCase__             =							scheduler.step_plms(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample
													UpperCAmelCase__             =							new_scheduler.step_plms(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample

													assert torch.sum(torch.abs(output - new_output			)			) < 1e-5, "Scheduler outputs are not identical"







					def 		__lowerCAmelCase						(				self   :	List[Any]    ,**lowerCamelCase__   :	int			):
									UpperCAmelCase__             =							self.scheduler_classes[0]
									UpperCAmelCase__             =							self.get_scheduler_config(**lowerCamelCase__			)
									UpperCAmelCase__             =							scheduler_class(**lowerCamelCase__			)

									UpperCAmelCase__             =							10
									UpperCAmelCase__             =							self.dummy_model()
									UpperCAmelCase__             =							self.dummy_sample_deter
									scheduler.set_timesteps(lowerCamelCase__			)

									for i, t in enumerate(scheduler.prk_timesteps			):
													UpperCAmelCase__             =							model(lowerCamelCase__    ,lowerCamelCase__			)
													UpperCAmelCase__             =							scheduler.step_prk(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__			).prev_sample

									for i, t in enumerate(scheduler.plms_timesteps			):
													UpperCAmelCase__             =							model(lowerCamelCase__    ,lowerCamelCase__			)
													UpperCAmelCase__             =							scheduler.step_plms(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__			).prev_sample

									return sample







					def 		__lowerCAmelCase						(				self   :	int			):
									UpperCAmelCase__             =							dict(self.forward_default_kwargs			)

									UpperCAmelCase__             =							kwargs.pop('num_inference_steps'    ,lowerCamelCase__			)

									for scheduler_class in self.scheduler_classes:
													UpperCAmelCase__             =							self.get_scheduler_config()
													UpperCAmelCase__             =							scheduler_class(**lowerCamelCase__			)

													UpperCAmelCase__             =							self.dummy_sample
													UpperCAmelCase__             =							0.1 * sample

													if num_inference_steps is not None and hasattr(lowerCamelCase__    ,'set_timesteps'			):
																	scheduler.set_timesteps(lowerCamelCase__			)
													elif num_inference_steps is not None and not hasattr(lowerCamelCase__    ,'set_timesteps'			):
																	UpperCAmelCase__             =							num_inference_steps

													# copy over dummy past residuals (must be done after set_timesteps)
													UpperCAmelCase__             =							[residual + 0.2, residual + 0.1_5, residual + 0.1, residual + 0.0_5]
													UpperCAmelCase__             =							dummy_past_residuals[:]

													UpperCAmelCase__             =							scheduler.step_prk(lowerCamelCase__    ,0    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample
													UpperCAmelCase__             =							scheduler.step_prk(lowerCamelCase__    ,1    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample

													self.assertEqual(output_a.shape    ,sample.shape			)
													self.assertEqual(output_a.shape    ,output_a.shape			)

													UpperCAmelCase__             =							scheduler.step_plms(lowerCamelCase__    ,0    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample
													UpperCAmelCase__             =							scheduler.step_plms(lowerCamelCase__    ,1    ,lowerCamelCase__    ,**lowerCamelCase__			).prev_sample

													self.assertEqual(output_a.shape    ,sample.shape			)
													self.assertEqual(output_a.shape    ,output_a.shape			)







					def 		__lowerCAmelCase						(				self   :	List[Any]			):
									for timesteps in [100, 1_000]:
													self.check_over_configs(num_train_timesteps=lowerCamelCase__			)







					def 		__lowerCAmelCase						(				self   :	Optional[int]			):
									for steps_offset in [0, 1]:
													self.check_over_configs(steps_offset=lowerCamelCase__			)

									UpperCAmelCase__             =							self.scheduler_classes[0]
									UpperCAmelCase__             =							self.get_scheduler_config(steps_offset=1			)
									UpperCAmelCase__             =							scheduler_class(**lowerCamelCase__			)
									scheduler.set_timesteps(10			)
									assert torch.equal(
									    scheduler.timesteps    ,torch.LongTensor(
									        [901, 851, 851, 801, 801, 751, 751, 701, 701, 651, 651, 601, 601, 501, 401, 301, 201, 101, 1]			)    ,)







					def 		__lowerCAmelCase						(				self   :	Dict			):
									for beta_start, beta_end in zip([0.0_0_0_1, 0.0_0_1]    ,[0.0_0_2, 0.0_2]			):
													self.check_over_configs(beta_start=lowerCamelCase__    ,beta_end=lowerCamelCase__			)







					def 		__lowerCAmelCase						(				self   :	Union[str, Any]			):
									for schedule in ["linear", "squaredcos_cap_v2"]:
													self.check_over_configs(beta_schedule=lowerCamelCase__			)







					def 		__lowerCAmelCase						(				self   :	List[Any]			):
									for prediction_type in ["epsilon", "v_prediction"]:
													self.check_over_configs(prediction_type=lowerCamelCase__			)







					def 		__lowerCAmelCase						(				self   :	Optional[Any]			):
									for t in [1, 5, 10]:
													self.check_over_forward(time_step=lowerCamelCase__			)







					def 		__lowerCAmelCase						(				self   :	List[Any]			):
									for t, num_inference_steps in zip([1, 5, 10]    ,[10, 50, 100]			):
													self.check_over_forward(num_inference_steps=lowerCamelCase__			)







					def 		__lowerCAmelCase						(				self   :	int			):
									# earlier version of set_timesteps() caused an error indexing alpha's with inference steps as power of 3
									UpperCAmelCase__             =							27

									for scheduler_class in self.scheduler_classes:
													UpperCAmelCase__             =							self.dummy_sample
													UpperCAmelCase__             =							0.1 * sample

													UpperCAmelCase__             =							self.get_scheduler_config()
													UpperCAmelCase__             =							scheduler_class(**lowerCamelCase__			)

													scheduler.set_timesteps(lowerCamelCase__			)

													# before power of 3 fix, would error on first step, so we only need to do two
													for i, t in enumerate(scheduler.prk_timesteps[:2]			):
																	UpperCAmelCase__             =							scheduler.step_prk(lowerCamelCase__    ,lowerCamelCase__    ,lowerCamelCase__			).prev_sample







					def 		__lowerCAmelCase						(				self   :	int			):
									with self.assertRaises(lowerCamelCase__			):
													UpperCAmelCase__             =							self.scheduler_classes[0]
													UpperCAmelCase__             =							self.get_scheduler_config()
													UpperCAmelCase__             =							scheduler_class(**lowerCamelCase__			)

													scheduler.step_plms(self.dummy_sample    ,1    ,self.dummy_sample			).prev_sample







					def 		__lowerCAmelCase						(				self   :	Tuple			):
									UpperCAmelCase__             =							self.full_loop()
									UpperCAmelCase__             =							torch.sum(torch.abs(lowerCamelCase__			)			)
									UpperCAmelCase__             =							torch.mean(torch.abs(lowerCamelCase__			)			)

									assert abs(result_sum.item() - 1_9_8.1_3_1_8			) < 1e-2
									assert abs(result_mean.item() - 0.2_5_8_0			) < 1e-3







					def 		__lowerCAmelCase						(				self   :	Tuple			):
									UpperCAmelCase__             =							self.full_loop(prediction_type='v_prediction'			)
									UpperCAmelCase__             =							torch.sum(torch.abs(lowerCamelCase__			)			)
									UpperCAmelCase__             =							torch.mean(torch.abs(lowerCamelCase__			)			)

									assert abs(result_sum.item() - 6_7.3_9_8_6			) < 1e-2
									assert abs(result_mean.item() - 0.0_8_7_8			) < 1e-3







					def 		__lowerCAmelCase						(				self   :	Union[str, Any]			):
									# We specify different beta, so that the first alpha is 0.99
									UpperCAmelCase__             =							self.full_loop(set_alpha_to_one=lowerCamelCase__    ,beta_start=0.0_1			)
									UpperCAmelCase__             =							torch.sum(torch.abs(lowerCamelCase__			)			)
									UpperCAmelCase__             =							torch.mean(torch.abs(lowerCamelCase__			)			)

									assert abs(result_sum.item() - 2_3_0.0_3_9_9			) < 1e-2
									assert abs(result_mean.item() - 0.2_9_9_5			) < 1e-3







					def 		__lowerCAmelCase						(				self   :	Tuple			):
									# We specify different beta, so that the first alpha is 0.99
									UpperCAmelCase__             =							self.full_loop(set_alpha_to_one=lowerCamelCase__    ,beta_start=0.0_1			)
									UpperCAmelCase__             =							torch.sum(torch.abs(lowerCamelCase__			)			)
									UpperCAmelCase__             =							torch.mean(torch.abs(lowerCamelCase__			)			)

									assert abs(result_sum.item() - 1_8_6.9_4_8_2			) < 1e-2
									assert abs(result_mean.item() - 0.2_4_3_4			) < 1e-3



