[New-bugs-announce] [issue20452] test_timeout_rounding() of test_asyncio fails on "x86 Ubuntu Shared 3.x" buildbot

[STINNER Victor]

New submission from STINNER Victor:

The failure is minor, it's just a suboptimal code. Calling _run_once() 4 times instead of 3.

http://buildbot.python.org/all/builders/x86%20Ubuntu%20Shared%203.x/builds/9630/steps/test/logs/stdio

======================================================================
FAIL: test_timeout_rounding (test.test_asyncio.test_events.EPollEventLoopTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/srv/buildbot/buildarea/3.x.bolen-ubuntu/build/Lib/test/test_asyncio/test_events.py", line 1180, in test_timeout_rounding
    self.assertEqual(calls, [1, 3, 5, 6])
AssertionError: Lists differ: [1, 4, 6, 7] != [1, 3, 5, 6]

First differing element 1:
4
3

- [1, 4, 6, 7]
+ [1, 3, 5, 6]



I'm unable to reproduce the error on my Linux box. When we had the rounding away from zero in epoll directly, the epoll test failed on the same buildbot:
http://bugs.python.org/issue20311#msg208601

http://buildbot.python.org/all/builders/x86%20Ubuntu%20Shared%203.3/builds/1360/steps/test/logs/stdio

======================================================================
FAIL: test_timeout_rounding (test.test_epoll.TestEPoll)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/srv/buildbot/buildarea/3.3.bolen-ubuntu/build/Lib/test/test_epoll.py", line 58, in test_timeout_rounding
    self.assertGreaterEqual(dt, timeout)
AssertionError: 0.009388947859406471 not greater than or equal to 0.01

----------
components: Tests
messages: 209749
nosy: gvanrossum, haypo
priority: normal
severity: normal
status: open
title: test_timeout_rounding() of test_asyncio fails on "x86 Ubuntu Shared 3.x" buildbot
versions: Python 3.4

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<http://bugs.python.org/issue20452>
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