old_contents: #!/usr/bin/python3
  # Copyright 2022 Google LLC
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import atheris
  import sys
  import binascii
  with atheris.instrument_imports():
       from adal.util import *
  
  def TestInput(data):
      fdp = atheris.FuzzedDataProvider(data)
  
      is_http_success(fdp.ConsumeInt(10))
  
      class DummyClass(object):
          _call_context = {
              'log_context':{'correlation_id':fdp.ConsumeString(20)},
              'options':{'http':{
                  fdp.ConsumeString(10):fdp.ConsumeString(100),
                  fdp.ConsumeString(10):fdp.ConsumeString(100),
                  fdp.ConsumeString(10):fdp.ConsumeString(100)
              }}
          }
  
          def geturl(self):
             return fdp.ConsumeString(100)
  
      create_request_options(DummyClass(),{
          fdp.ConsumeString(10):fdp.ConsumeString(100),
          fdp.ConsumeString(10):fdp.ConsumeString(100),
          fdp.ConsumeString(10):fdp.ConsumeString(100),
          'headers':{
              fdp.ConsumeString(10):fdp.ConsumeString(100),
              fdp.ConsumeString(10):fdp.ConsumeString(100),
              fdp.ConsumeString(10):fdp.ConsumeString(100)
          }
      })
  
      try:
          copy_url(fdp.ConsumeString(100))
          copy_url(DummyClass())
      except ValueError as e:
          if "contains invalid characters" not in str(e):
              raise e
  
      try:
          base64_urlsafe_decode(fdp.ConsumeUnicodeNoSurrogates(100))
      except binascii.Error as e:
          if "Invalid base64-encoded string" not in str(e):
              raise e
  
  def main():
      atheris.Setup(sys.argv, TestInput, enable_python_coverage=True)
      atheris.Fuzz()
  
  if __name__ == "__main__":
      main()
  
new_contents: #!/usr/bin/python3
  # Copyright 2022 Google LLC
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import atheris
  import sys
  import binascii
  with atheris.instrument_imports():
       from adal.util import *
  
  def TestInput(data):
      fdp = atheris.FuzzedDataProvider(data)
  
      is_http_success(fdp.ConsumeInt(10))
  
      class DummyClass(object):
          _call_context = {
              'log_context':{'correlation_id':fdp.ConsumeString(20)},
              'options':{'http':{
                  fdp.ConsumeString(10):fdp.ConsumeString(100),
                  fdp.ConsumeString(10):fdp.ConsumeString(100),
                  fdp.ConsumeString(10):fdp.ConsumeString(100)
              }}
          }
  
          def geturl(self):
             return fdp.ConsumeString(100)
  
      create_request_options(DummyClass(),{
          fdp.ConsumeString(10):fdp.ConsumeString(100),
          fdp.ConsumeString(10):fdp.ConsumeString(100),
          fdp.ConsumeString(10):fdp.ConsumeString(100),
          'headers':{
              fdp.ConsumeString(10):fdp.ConsumeString(100),
              fdp.ConsumeString(10):fdp.ConsumeString(100),
              fdp.ConsumeString(10):fdp.ConsumeString(100)
          }
      })
  
      try:
          copy_url(fdp.ConsumeString(100))
          copy_url(DummyClass())
      except ValueError as e:
          if (("contains invalid characters" not in str(e)) and
              ("Invalid IPv6 URL" not in str(e))):
              raise e
  
      try:
          base64_urlsafe_decode(fdp.ConsumeUnicodeNoSurrogates(100))
      except binascii.Error as e:
          if "Invalid base64-encoded string" not in str(e):
              raise e
  
  def main():
      atheris.Setup(sys.argv, TestInput, enable_python_coverage=True)
      atheris.Fuzz()
  
  if __name__ == "__main__":
      main()
  
  
subject: Fix error handling (#8638)