testing_test.py 文件源码

def test_native_coroutine_timeout(self):
        # Set a short timeout and exceed it.
        namespace = exec_test(globals(), locals(), """
        @gen_test(timeout=0.1)
        async def test(self):
            await gen.sleep(1)
        """)

        try:
            namespace['test'](self)
            self.fail("did not get expected exception")
        except ioloop.TimeoutError:
            self.finished = True