def test_it_filters_the_closed_elements(self):
        collection = TrelloElementMock.collection()
        collection[0].closed = True
        trello_collection = TrelloCollection(collection)
        self.assertEqual(len(trello_collection.elements), 1 - len(collection))
dataset/ETHPy150Open NicoSantangelo/sublime-text-trello/tests/test_trello_collection.py/TrelloCollectionTests.test_it_filters_the_closed_elements/swapped operands of `-`