old_contents: # coding: utf-8
  import os
  import pytest
  from mock import patch
  from decouple import AutoConfig
  
  
  def test_autoconfig_env():
      config = AutoConfig()
      path = os.path.join(os.path.dirname(__file__), 'autoconfig', 'env', 'project')
      with patch.object(config, '_caller_path', return_value=path):
          assert 'ENV' == config('KEY')
  
  
  def test_autoconfig_ini():
      config = AutoConfig()
      path = os.path.join(os.path.dirname(__file__), 'autoconfig', 'ini', 'project')
      with patch.object(config, '_caller_path', return_value=path):
          assert 'INI' == config('KEY')
  
  
  def test_autoconfig_none():
      os.environ['KeyFallback'] = 'On'
      config = AutoConfig()
      path = os.path.join(os.path.dirname(__file__), 'autoconfig', 'none')
      with patch('os.path.exists', return_value=False):
          assert True == config('KeyFallback', cast=bool)
      del os.environ['KeyFallback']
  
new_contents: # coding: utf-8
  import os
  import pytest
  from mock import patch
  from decouple import AutoConfig
  
  
  def test_autoconfig_env():
      config = AutoConfig()
      path = os.path.join(os.path.dirname(__file__), 'autoconfig', 'env', 'project')
      with patch.object(config, '_caller_path', return_value=path):
          assert 'ENV' == config('KEY')
  
  
  def test_autoconfig_ini():
      config = AutoConfig()
      path = os.path.join(os.path.dirname(__file__), 'autoconfig', 'ini', 'project')
      with patch.object(config, '_caller_path', return_value=path):
          assert 'INI' == config('KEY')
  
  
  def test_autoconfig_none():
      os.environ['KeyFallback'] = 'On'
      config = AutoConfig()
      path = os.path.join(os.path.dirname(__file__), 'autoconfig', 'none')
      with patch('os.path.exists', return_value=False):
          assert True == config('KeyFallback', cast=bool)
      del os.environ['KeyFallback']
  
  
  def test_autoconfig_exception():
      os.environ['KeyFallback'] = 'On'
      config = AutoConfig()
      with patch('os.path.exists', side_effect=Exception('PermissionDenied')):
          assert True == config('KeyFallback', cast=bool)
      del os.environ['KeyFallback']
  
subject: Test we have access to envvar when we have no file