Method make_iostream_pair

tornado/test/iostream_test.py:1270–1273

(self, **kwargs)

class TestPipeIOStream(TestReadWriteMixin, AsyncTestCase):
    @gen.coroutine
    def make_iostream_pair(self, **kwargs):
        r, w = os.pipe()

        return PipeIOStream(r, **kwargs), PipeIOStream(w, **kwargs)

    @gen_test
    def test_pipe_iostream(self):