old_contents: import os
  import sys
  import django
  
  BASE_PATH = os.path.dirname(__file__)
  
  
  def main():
      """
      Standalone django model test with a 'memory-only-django-installation'.
      You can play with a django model without a complete django app installation.
      http://www.djangosnippets.org/snippets/1044/
      """
      os.environ["DJANGO_SETTINGS_MODULE"] = "django.conf.global_settings"
      from django.conf import global_settings
  
      global_settings.INSTALLED_APPS = (
          'django.contrib.auth',
          'django.contrib.contenttypes',
          'jsonfield',
      )
      global_settings.DATABASES = {
          'default': {
              'ENGINE': 'django.db.backends.{DB_ENGINE}'.format(**os.environ),
              'NAME': 'jsonfield-{DB_NAME}'.format(**os.environ),
              'USER': '{USER}'.format(**os.environ),
          }
      }
  
      global_settings.STATIC_URL = "/static/"
      global_settings.MEDIA_ROOT = os.path.join(BASE_PATH, 'static')
      global_settings.STATIC_ROOT = global_settings.MEDIA_ROOT
  
      global_settings.SECRET_KEY = '334ebe58-a77d-4321-9d01-a7d2cb8d3eea'
      from django.test.utils import get_runner
      test_runner = get_runner(global_settings)
  
      test_runner = test_runner()
  
      if getattr(django, 'setup', None):
          django.setup()
  
      failures = test_runner.run_tests(['jsonfield'])
  
      sys.exit(failures)
  
  if __name__ == '__main__':
      main()
  
new_contents: import os
  import sys
  import django
  
  BASE_PATH = os.path.dirname(__file__)
  
  
  def main():
      """
      Standalone django model test with a 'memory-only-django-installation'.
      You can play with a django model without a complete django app installation.
      http://www.djangosnippets.org/snippets/1044/
      """
      os.environ["DJANGO_SETTINGS_MODULE"] = "django.conf.global_settings"
      from django.conf import global_settings
  
      global_settings.INSTALLED_APPS = (
          'django.contrib.auth',
          'django.contrib.contenttypes',
          'jsonfield',
      )
      global_settings.DATABASES = {
          'default': {
              'ENGINE': 'django.db.backends.{DB_ENGINE}'.format(**os.environ),
              'NAME': 'jsonfield-{DB_NAME}'.format(**os.environ),
          }
      }
  
      global_settings.STATIC_URL = "/static/"
      global_settings.MEDIA_ROOT = os.path.join(BASE_PATH, 'static')
      global_settings.STATIC_ROOT = global_settings.MEDIA_ROOT
  
      global_settings.SECRET_KEY = '334ebe58-a77d-4321-9d01-a7d2cb8d3eea'
      from django.test.utils import get_runner
      test_runner = get_runner(global_settings)
  
      test_runner = test_runner()
  
      if getattr(django, 'setup', None):
          django.setup()
  
      failures = test_runner.run_tests(['jsonfield'])
  
      sys.exit(failures)
  
  if __name__ == '__main__':
      main()
  
subject: Use empty username.