def test_no_enclosure_when_format_not_set(self):
        feeder = RSSTopCategoryListings()
        feeder.format = None
        self._set_photo()
        tools.assert_true(self.publishables[0].photo is not None)
        tools.assert_equals(None, feeder.item_enclosure_url(self.listings[0]))
dataset/ETHPy150Open ella/ella/test_ella/test_core/test_feeds.py/TestFeeds.test_no_enclosure_when_format_not_set/original