def run_tests(self, test_labels, extra_tests=None, **kwargs):
    if not test_labels:
        PROJECT_PREFIX = 'my_project.'
test_labels = [app.replace(PROJECT_PREFIX, '') for app in settings.
    INSTALLED_APPS if app.startswith(PROJECT_PREFIX)]
return super(AppsTestSuiteRunner, self).run_tests(test_labels, extra_tests,
    **kwargs)
Тестирование конкретных приложений в Django