def test_if_file_view_not_set_uses_application_config_value_as_view(self):
self.app.config['FILE_SYSTEM_STORAGE_FILE_VIEW'] = 'custom.file_view'
storage = FileSystemStorage()
called_url_for = (
flexmock(flask_storage.filesystem)
.should_receive('url_for')
.once()
.with_args('custom.file_view', filename='file_name')
)
storage.url('file_name')
called_url_for.verify()
