'Test the listing collection is using ESAppFeedSerializer.'

def test_home_serializer_listing_coll(self):

    self.collection.update(type=feed.COLLECTION_LISTING)
    self.data_es = self.collection.get_indexer().extract_document(None, obj=self.collection)
    data = serializers.FeedCollectionESHomeSerializer(self.data_es, context=self.context).data
    ok_(('author' in data['apps'][0]))
    ok_(data['apps'][0]['name'])
    ok_(data['apps'][0]['ratings'])
    ok_(data['apps'][0]['icons'])
    eq_(data['app_count'], len(self.app_map))
