Как запустить тест Django с модулем, расположенным в родительском каталоге?

Question

Я хочу бежать Djangotest с модулем, расположенным в родительском каталоге. Хотя я пробовал относительный путь, это не удалось, генерируя Exception, Например, как показано ниже.

root
├── project
│   ├── __init__.py
│   └── manage.py   
└── tests
    ├── __init__.py
    └── test_module.py

$ pwd 
/root/project
$ python manage.py test ..tests.test_module
Traceback (most recent call last):
  File "manage.py", line 78, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 330, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/test.py", line 30, in run_from_argv
    super(Command, self).run_from_argv(argv)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 393, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/test.py", line 74, in execute
    super(Command, self).execute(*args, **options)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 444, in execute
    output = self.handle(*args, **options)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/test.py", line 90, in handle
    failures = test_runner.run_tests(test_labels)
  File "/usr/local/lib/python2.7/dist-packages/django/test/runner.py", line 209, in run_tests
    suite = self.build_suite(test_labels, extra_tests)
  File "/usr/local/lib/python2.7/dist-packages/django/test/runner.py", line 121, in build_suite
    tests = self.test_loader.loadTestsFromName(label)
  File "/usr/lib/python2.7/unittest/loader.py", line 91, in loadTestsFromName
    module = __import__('.'.join(parts_copy))
ValueError: Empty module name