Method f

python/python3/tornado/test/asyncio_test.py:60–63

()

    def test_asyncio_yield_from(self):
        @gen.coroutine
        def f():
            event_loop = asyncio.get_event_loop()
            x = yield from event_loop.run_in_executor(None, lambda: 42)
            return x

        result = yield f()
        self.assertEqual(result, 42)