'''simple docstring'''





import os
import re
import shutil
import sys
import tempfile
import unittest

import black


SCREAMING_SNAKE_CASE_:     int  =os.path.abspath(os.path.dirname(os.path.dirname(os.path.dirname(__file__))))
sys.path.append(os.path.join(git_repo_path, 'utils'))

import check_copies  # noqa: E402


# This is the reference code that will be used in the tests.
# If DDPMSchedulerOutput is changed in scheduling_ddpm.py, this code needs to be manually updated.
SCREAMING_SNAKE_CASE_:     int  ='    \"""\n    Output class for the scheduler\'s step function output.\n\n    Args:\n        prev_sample (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)` for images):\n            Computed sample (x_{t-1}) of previous timestep. `prev_sample` should be used as next model input in the\n            denoising loop.\n        pred_original_sample (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)` for images):\n            The predicted denoised sample (x_{0}) based on the model output from the current timestep.\n            `pred_original_sample` can be used to preview progress or for guidance.\n    \"""\n\n    prev_sample: torch.FloatTensor\n    pred_original_sample: Optional[torch.FloatTensor] = None\n'




class        __A      ( unittest.TestCase	):



    def 					_lowercase						(self    :    Any ):
         UpperCAmelCase_           =   tempfile.mkdtemp()
         os.makedirs(os.path.join(self.diffusers_dir   ,			"schedulers/" ) )
         UpperCAmelCase_           =   self.diffusers_dir
         shutil.copy(
             os.path.join(__a   ,			"src/diffusers/schedulers/scheduling_ddpm.py" )   ,			os.path.join(self.diffusers_dir   ,			"schedulers/scheduling_ddpm.py" )   ,			)



    def 					_lowercase						(self    :    str ):
         UpperCAmelCase_           =   "src/diffusers"
         shutil.rmtree(self.diffusers_dir )



    def 					_lowercase						(self    :    Any   ,			__a    :    List[str]   ,			__a    :    str   ,			__a    :    int   ,			__a    :    Any=None ):
         UpperCAmelCase_           =   comment + f"""\nclass {class_name}(nn.Module):\n""" + class_code
         if overwrite_result is not None:
              UpperCAmelCase_           =   comment + f"""\nclass {class_name}(nn.Module):\n""" + overwrite_result
         UpperCAmelCase_           =   black.Mode(target_versions={black.TargetVersion.PYaa}   ,			line_length=119 )
         UpperCAmelCase_           =   black.format_str(__a   ,			mode=__a )
         UpperCAmelCase_           =   os.path.join(self.diffusers_dir   ,			"new_code.py" )
         with open(__a   ,			"w"   ,			newline="\n" ) as f:
              f.write(__a )
         if overwrite_result is None:
              self.assertTrue(len(check_copies.is_copy_consistent(__a ) ) == 0 )
         else:
              check_copies.is_copy_consistent(f.name   ,			overwrite=__a )
              with open(__a   ,			"r" ) as f:
                   self.assertTrue(f.read()   ,			__a )



    def 					_lowercase						(self    :    List[str] ):
         UpperCAmelCase_           =   check_copies.find_code_in_diffusers("schedulers.scheduling_ddpm.DDPMSchedulerOutput" )
         self.assertEqual(__a   ,			__a )






    def 					_lowercase						(self    :    int ):
         # Base copy consistency
         self.check_copy_consistency(
             "# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput"   ,			"DDPMSchedulerOutput"   ,			REFERENCE_CODE + "\n"   ,			)

         # With no empty line at the end
         self.check_copy_consistency(
             "# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput"   ,			"DDPMSchedulerOutput"   ,			__a   ,			)

         # Copy consistency with rename
         self.check_copy_consistency(
             "# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->Test"   ,			"TestSchedulerOutput"   ,			re.sub("DDPM"   ,			"Test"   ,			__a )   ,			)

         # Copy consistency with a really long name
         UpperCAmelCase_           =   "TestClassWithAReallyLongNameBecauseSomePeopleLikeThatForSomeReason"
         self.check_copy_consistency(
             f"""# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->{long_class_name}"""   ,			f"""{long_class_name}SchedulerOutput"""   ,			re.sub("Bert"   ,			__a   ,			__a )   ,			)

         # Copy consistency with overwrite
         self.check_copy_consistency(
             "# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->Test"   ,			"TestSchedulerOutput"   ,			__a   ,			overwrite_result=re.sub("DDPM"   ,			"Test"   ,			__a )   ,			)





'''simple docstring'''





from math import log

from scipy.constants import Boltzmann, physical_constants

SCREAMING_SNAKE_CASE_:     Optional[int]  =3_00  # TEMPERATURE (unit = K)





def 	lowerCAmelCase_				(					snake_case_       : float					,    snake_case_       : float					,    snake_case_       : float					,    )    ->      float:


     '''simple docstring'''




     if donor_conc <= 0:
          raise ValueError("Donor concentration should be positive"			)
     elif acceptor_conc <= 0:
          raise ValueError("Acceptor concentration should be positive"			)
     elif intrinsic_conc <= 0:
          raise ValueError("Intrinsic concentration should be positive"			)
     elif donor_conc <= intrinsic_conc:
          raise ValueError(
              "Donor concentration should be greater than intrinsic concentration"			)
     elif acceptor_conc <= intrinsic_conc:
          raise ValueError(
              "Acceptor concentration should be greater than intrinsic concentration"			)
     else:
          return (
              Boltzmann
              * T
              * log((donor_conc * acceptor_conc) / intrinsic_conc**2			)
              / physical_constants["electron volt"][0]
          )


if __name__ == "__main__":
    import doctest

    doctest.testmod()




