Method test_flatten

tests/queries/test_q.py:250–264

(self)

        )

    def test_flatten(self):
        q = Q()
        self.assertEqual(list(q.flatten()), [q])
        q = Q(NothingNode())
        self.assertEqual(list(q.flatten()), [q, q.children[0]])
        q = Q(
            ExpressionWrapper(
                Q(RawSQL("id = 0", params=(), output_field=BooleanField()))
                | Q(price=Value("4.55"))
                | Q(name=Lower("category")),
                output_field=BooleanField(),
            )
        )
        flatten = list(q.flatten())
        self.assertEqual(len(flatten), 7)

    def test_create_helper(self):
        items = [("a", 1), ("b", 2), ("c", 3)]