[issue32458] test_asyncio failures on Windows

[Ned Deily]

Ned Deily  added the comment:

Note, I think this failure is still happening occasionally on the windows7 
buildbot; for example:

http://buildbot.python.org/all/#/builders/111/builds/68/steps/3/logs/stdio
http://buildbot.python.org/all/#/builders/111/builds/85/steps/3/logs/stdio

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nosy: +ned.deily

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[issue32458] test_asyncio failures on Windows

[Andrew Svetlov]

Andrew Svetlov  added the comment:

Hmm, the scheduled call was executed sooner than expected.
Actually we had 0.1 sec delay, checked for at least 0.08 but actual call time 
was 0.078

BTW I recall an issue with Windows when call_later() was executed sooner 
already.

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[issue32458] test_asyncio failures on Windows

[Terry J. Reedy]

Terry J. Reedy  added the comment:

After fresh update and debug rebuild on master(3.7), with Win10 patched last 
night, I got
==
FAIL: test_call_later (test.test_asyncio.test_events.ProactorEventLoopTests)
--
Traceback (most recent call last):
  File "F:\dev\3x\lib\test\test_asyncio\test_events.py", line 290, in 
test_call_later
self.assertTrue(0.08 <= t1-t0 <= 0.8, t1-t0)
AssertionError: False is not true : 0.078861473

I have not seen this before.  Four subsequent runs passed.

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nosy: +terry.reedy

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[issue32458] test_asyncio failures on Windows

[Yury Selivanov]

Yury Selivanov  added the comment:

Please keep this issue open.

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[issue32458] test_asyncio failures on Windows

[Yury Selivanov]

Yury Selivanov  added the comment:


New changeset 0c36bed1c46d07ef91d3e02e69e974e4f3ecd31a by Yury Selivanov in 
branch 'master':
bpo-32458: Temporarily mask start-tls proactor test on Windows (#5054)
https://github.com/python/cpython/commit/0c36bed1c46d07ef91d3e02e69e974e4f3ecd31a


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[issue32458] test_asyncio failures on Windows

[Yury Selivanov]

Yury Selivanov  added the comment:

I'm leaving on a two-weeks vacation today.  To avoid risking breaking the 
workflow, I'll mask this tests on AppVeyor.  I'll investigate this when I get 
back.

--
assignee:  -> yselivanov
components: +asyncio -Library (Lib), Tests
priority: normal -> high

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[issue32458] test_asyncio failures on Windows

[Yury Selivanov]

Change by Yury Selivanov :


--
keywords: +patch
pull_requests: +4935
stage:  -> patch review

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[issue32458] test_asyncio failures on Windows

[Antoine Pitrou]

New submission from Antoine Pitrou :

It seems test_asyncio fails sporadically on AppVeyor:
https://ci.appveyor.com/project/python/cpython/build/3.7.0a0.10081#L2650

==
ERROR: test_start_tls_server_1 
(test.test_asyncio.test_sslproto.ProactorStartTLS)
--
Traceback (most recent call last):
  File "C:\projects\cpython\lib\test\test_asyncio\test_sslproto.py", line 284, 
in test_start_tls_server_1
asyncio.wait_for(main(), loop=self.loop, timeout=10))
  File "C:\projects\cpython\lib\asyncio\base_events.py", line 440, in 
run_until_complete
return future.result()
  File "C:\projects\cpython\lib\asyncio\tasks.py", line 398, in wait_for
raise futures.TimeoutError()
concurrent.futures._base.TimeoutError
==
FAIL: test_start_tls_server_1 (test.test_asyncio.test_sslproto.ProactorStartTLS)
--
Traceback (most recent call last):
  File "C:\projects\cpython\lib\test\test_asyncio\functional.py", line 43, in 
tearDown
self.fail('unexpected calls to loop.call_exception_handler()')
AssertionError: unexpected calls to loop.call_exception_handler()

--
components: Library (Lib), Tests
messages: 309244
nosy: asvetlov, giampaolo.rodola, pitrou, yselivanov
priority: normal
severity: normal
status: open
title: test_asyncio failures on Windows
type: behavior
versions: Python 3.7

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