runner.py 文件源码

def setup_test_environment(self):
        """
        Setups the environment. Creates a temporary directory
        and saves default the values of environment settings
        """
        super().setup_test_environment()
        # save original settings
        settings._original_media_root = settings.MEDIA_ROOT
        settings._original_file_storage = settings.DEFAULT_FILE_STORAGE
        # create a temporary directory
        self._temp_media = tempfile.mkdtemp()
        # set a new media directory setting
        settings.MEDIA_ROOT = self._temp_media
        # set a file system storage setting
        storage = 'django.core.files.storage.FileSystemStorage'
        settings.DEFAULT_FILE_STORAGE = storage