From d1e34031f68a3c7523a5376575c87cd0fea2425c Mon Sep 17 00:00:00 2001
From: jimmylai <albert_chs@yahoo.com.tw>
Date: Wed, 1 Nov 2017 06:54:45 -0700
Subject: [asyncio] bpo-30423: add regression test for orphan future causes
"RuntimeError: Event loop stopped before Future completed." (#3295)
* call remove_done_callback in finally section
* [asyncio] bpo-30423 bug: add regression test for orphan future causes "RuntimeError: Event loop stopped before Future completed."
---
Lib/test/test_asyncio/test_base_events.py | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/test_base_events.py
index a0ce9fa..6fdb593 100644
--- a/Lib/test/test_asyncio/test_base_events.py
+++ b/Lib/test/test_asyncio/test_base_events.py
@@ -529,6 +529,22 @@ class BaseEventLoopTests(test_utils.TestCase):
self.assertRaises(ValueError,
other_loop.run_until_complete, task)
+ def test_run_until_complete_loop_orphan_future_close_loop(self):
+ async def foo(sec=0):
+ await asyncio.sleep(sec)
+
+ self.loop.close()
+ loop = asyncio.new_event_loop()
+ asyncio.set_event_loop(loop)
+ try:
+ with mock.patch('asyncio.base_events.BaseEventLoop.run_forever',
+ side_effect=Exception):
+ loop.run_until_complete(foo())
+ except:
+ pass
+ loop.run_until_complete(foo(0.1))
+ loop.close()
+
def test_subprocess_exec_invalid_args(self):
args = [sys.executable, '-c', 'pass']
--
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