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Diffstat (limited to 'Lib/test/test_multiprocessing.py')
| -rw-r--r-- | Lib/test/test_multiprocessing.py | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Lib/test/test_multiprocessing.py b/Lib/test/test_multiprocessing.py index 48a4ff4..0bc056f 100644 --- a/Lib/test/test_multiprocessing.py +++ b/Lib/test/test_multiprocessing.py @@ -1266,6 +1266,20 @@ class _TestPoolWorkerLifetime(BaseTestCase): p.close() p.join() + def test_pool_worker_lifetime_early_close(self): + # Issue #10332: closing a pool whose workers have limited lifetimes + # before all the tasks completed would make join() hang. + p = multiprocessing.Pool(3, maxtasksperchild=1) + results = [] + for i in range(6): + results.append(p.apply_async(sqr, (i, 0.3))) + p.close() + p.join() + # check the results + for (j, res) in enumerate(results): + self.assertEqual(res.get(), sqr(j)) + + # # Test that manager has expected number of shared objects left # |