old_contents: # Minimalistic django settings necessary to run the tests
  
  DEBUG = True
  ROOT_URLCONF = 'tests.main_url_conf'
  SECRET_KEY = 'Guard of the Citadel indeed.'
  
new_contents: # Minimalistic django settings necessary to run the tests
  
  DEBUG = True
  ROOT_URLCONF = 'tests.urls'
  SECRET_KEY = 'Guard of the Citadel indeed.'
  
subject: correct path to ROOT_URLCONF