Method test_max

test/asynchronous/test_cursor.py:511–547

(self)

            a.limit(5)

    async def test_max(self):
        db = self.db
        await db.test.drop()
        j_index = [("j", ASCENDING)]
        await db.test.create_index(j_index)

        await db.test.insert_many([{"j": j, "k": j} for j in range(10)])

        def find(max_spec, expected_index):
            return db.test.find().max(max_spec).hint(expected_index)

        cursor = find([("j", 3)], j_index)
        self.assertEqual(len(await cursor.to_list()), 3)

        # Tuple.
        cursor = find((("j", 3),), j_index)
        self.assertEqual(len(await cursor.to_list()), 3)

        # Compound index.
        index_keys = [("j", ASCENDING), ("k", ASCENDING)]
        await db.test.create_index(index_keys)
        cursor = find([("j", 3), ("k", 3)], index_keys)
        self.assertEqual(len(await cursor.to_list()), 3)

        # Wrong order.
        cursor = find([("k", 3), ("j", 3)], index_keys)
        with self.assertRaises(OperationFailure):
            await cursor.to_list()

        # No such index.
        cursor = find([("k", 3)], "k")
        with self.assertRaises(OperationFailure):
            await cursor.to_list()
        with self.assertRaises(TypeError):
            db.test.find().max(10)  # type: ignore[arg-type]
        with self.assertRaises(TypeError):
            db.test.find().max({"j": 10})  # type: ignore[arg-type]

    async def test_min(self):
        db = self.db