'saving and deleting things which are not \'asset\''

@ddt.data(*MODULESTORE_SETUPS)
def test_save_one_different_asset(self, storebuilder):

    with storebuilder.build() as (__, store):
        course = CourseFactory.create(modulestore=store)
        asset_key = course.id.make_asset_key('different', 'burn.jpg')
        new_asset_thumbnail = self._make_asset_thumbnail_metadata(self._make_asset_metadata(asset_key))
        store.save_asset_metadata(new_asset_thumbnail, ModuleStoreEnum.UserID.test)
        self.assertEquals(len(store.get_all_asset_metadata(course.id, 'different')), 1)
        self.assertEquals(store.delete_asset_metadata(asset_key, ModuleStoreEnum.UserID.test), 1)
        self.assertEquals(len(store.get_all_asset_metadata(course.id, 'different')), 0)
