diff options
| -rw-r--r-- | Lib/test/test_concurrent_futures.py | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Lib/test/test_concurrent_futures.py b/Lib/test/test_concurrent_futures.py index c973516..c8fa35e 100644 --- a/Lib/test/test_concurrent_futures.py +++ b/Lib/test/test_concurrent_futures.py @@ -342,6 +342,26 @@ class ExecutorShutdownTest: for f in fs: f.result() + def test_hang_issue39205(self): + """shutdown(wait=False) doesn't hang at exit with running futures. + + See https://bugs.python.org/issue39205. + """ + if self.executor_type == futures.ProcessPoolExecutor: + raise unittest.SkipTest( + "Hangs due to https://bugs.python.org/issue39205") + + rc, out, err = assert_python_ok('-c', """if True: + from concurrent.futures import {executor_type} + from test.test_concurrent_futures import sleep_and_print + if __name__ == "__main__": + t = {executor_type}(max_workers=3) + t.submit(sleep_and_print, 1.0, "apple") + t.shutdown(wait=False) + """.format(executor_type=self.executor_type.__name__)) + self.assertFalse(err) + self.assertEqual(out.strip(), b"apple") + class ThreadPoolShutdownTest(ThreadPoolMixin, ExecutorShutdownTest, BaseTestCase): def _prime_executor(self): |