test_futures.py 文件源码

def test_context_manager_shutdown(self):
        with futures.ProcessPoolExecutor(max_workers=5) as e:
            processes = e._processes
            self.assertEqual(list(e.map(abs, range(-5, 5))),
                             [5, 4, 3, 2, 1, 0, 1, 2, 3, 4])

        for p in processes:
            p.join()