Method test_asend

Lib/test/test_asyncgen.py:1996–2012

(self)

class TestUnawaitedWarnings(unittest.TestCase):
    def test_asend(self):
        async def gen():
            yield 1

        # gh-113753: asend objects allocated from a free-list should warn.
        # Ensure there is a finalized 'asend' object ready to be reused.
        try:
            g = gen()
            g.asend(None).send(None)
        except StopIteration:
            pass

        msg = f"coroutine method 'asend' of '{gen.__qualname__}' was never awaited"
        with self.assertWarnsRegex(RuntimeWarning, msg):
            g = gen()
            g.asend(None)
            gc_collect()

    def test_athrow(self):
        async def gen():