testing_test.py 文件源码

def test_no_timeout_environment_variable(self):
        @gen_test(timeout=0.01)
        def test_short_timeout(self):
            time = self.io_loop.time
            yield gen.Task(self.io_loop.add_timeout, time() + 1)

        # Uses environment-variable timeout of 0.1, times out.
        with set_environ('ASYNC_TEST_TIMEOUT', '0.1'):
            with self.assertRaises(ioloop.TimeoutError):
                test_short_timeout(self)

        self.finished = True