Method test_uninitialized

Lib/test/test_asyncio/test_futures.py:191–241

(self)

        self.assertRaises(TypeError, self._new_future, 42)

    def test_uninitialized(self):
        # Test that C Future doesn't crash when Future.__init__()
        # call was skipped.

        fut = self.cls.__new__(self.cls, loop=self.loop)
        self.assertRaises(asyncio.InvalidStateError, fut.result)

        fut = self.cls.__new__(self.cls, loop=self.loop)
        self.assertRaises(asyncio.InvalidStateError, fut.exception)

        fut = self.cls.__new__(self.cls, loop=self.loop)
        with self.assertRaises((RuntimeError, AttributeError)):
            fut.set_result(None)

        fut = self.cls.__new__(self.cls, loop=self.loop)
        with self.assertRaises((RuntimeError, AttributeError)):
            fut.set_exception(Exception)

        fut = self.cls.__new__(self.cls, loop=self.loop)
        with self.assertRaises((RuntimeError, AttributeError)):
            fut.cancel()

        fut = self.cls.__new__(self.cls, loop=self.loop)
        with self.assertRaises((RuntimeError, AttributeError)):
            fut.add_done_callback(lambda f: None)

        fut = self.cls.__new__(self.cls, loop=self.loop)
        with self.assertRaises((RuntimeError, AttributeError)):
            fut.remove_done_callback(lambda f: None)

        fut = self.cls.__new__(self.cls, loop=self.loop)
        try:
            repr(fut)
        except (RuntimeError, AttributeError):
            pass

        fut = self.cls.__new__(self.cls, loop=self.loop)
        try:
            fut.__await__()
        except RuntimeError:
            pass

        fut = self.cls.__new__(self.cls, loop=self.loop)
        try:
            iter(fut)
        except RuntimeError:
            pass

        fut = self.cls.__new__(self.cls, loop=self.loop)
        self.assertFalse(fut.cancelled())
        self.assertFalse(fut.done())

    def test_future_cancel_message_getter(self):
        f = self._new_future(loop=self.loop)