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bpo-35621: Support running subprocesses in asyncio when loop is executed in non-main thread (#13630)

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Andrew Svetlov 2019-06-02 13:56:38 +03:00 • committed by GitHub
parent c52996785a
commit 13ed07998a
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4 changed files with 262 additions and 54 deletions
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34
Lib/test/test_asyncio/test_unix_events.py
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@ -1082,6 +1082,8 @@ class AbstractChildWatcherTests(unittest.TestCase):
NotImplementedError, watcher.attach_loop, f)
self.assertRaises(
NotImplementedError, watcher.close)
self.assertRaises(
NotImplementedError, watcher.is_active)
self.assertRaises(
NotImplementedError, watcher.__enter__)
self.assertRaises(
@ -1784,15 +1786,6 @@ class ChildWatcherTestsMixin:
if isinstance(self.watcher, asyncio.FastChildWatcher):
self.assertFalse(self.watcher._zombies)
@waitpid_mocks
def test_add_child_handler_with_no_loop_attached(self, m):
callback = mock.Mock()
with self.create_watcher() as watcher:
with self.assertRaisesRegex(
RuntimeError,
'the child watcher does not have a loop attached'):
watcher.add_child_handler(100, callback)
class SafeChildWatcherTests (ChildWatcherTestsMixin, test_utils.TestCase):
def create_watcher(self):
@ -1809,17 +1802,16 @@ class PolicyTests(unittest.TestCase):
def create_policy(self):
return asyncio.DefaultEventLoopPolicy()
def test_get_child_watcher(self):
def test_get_default_child_watcher(self):
policy = self.create_policy()
self.assertIsNone(policy._watcher)
watcher = policy.get_child_watcher()
self.assertIsInstance(watcher, asyncio.SafeChildWatcher)
self.assertIsInstance(watcher, asyncio.ThreadedChildWatcher)
self.assertIs(policy._watcher, watcher)
self.assertIs(watcher, policy.get_child_watcher())
self.assertIsNone(watcher._loop)
def test_get_child_watcher_after_set(self):
policy = self.create_policy()
@ -1829,18 +1821,6 @@ class PolicyTests(unittest.TestCase):
self.assertIs(policy._watcher, watcher)
self.assertIs(watcher, policy.get_child_watcher())
def test_get_child_watcher_with_mainloop_existing(self):
policy = self.create_policy()
loop = policy.get_event_loop()
self.assertIsNone(policy._watcher)
watcher = policy.get_child_watcher()
self.assertIsInstance(watcher, asyncio.SafeChildWatcher)
self.assertIs(watcher._loop, loop)
loop.close()
def test_get_child_watcher_thread(self):
def f():
@ -1865,7 +1845,11 @@ class PolicyTests(unittest.TestCase):
policy = self.create_policy()
loop = policy.get_event_loop()
watcher = policy.get_child_watcher()
# Explicitly setup SafeChildWatcher,
# default ThreadedChildWatcher has no _loop property
watcher = asyncio.SafeChildWatcher()
policy.set_child_watcher(watcher)
watcher.attach_loop(loop)
self.assertIs(watcher._loop, loop)