[ python-Bugs-1501330 ] failure of test_ossaudiodev; elapsed time .1 sec faster

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Bugs item #1501330, was opened at 2006-06-05 20:23
Message generated for change (Settings changed) made by akuchling
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Category: Python Library
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Submitted By: Brett Cannon (bcannon)
>Assigned to: Greg Ward (gward)
Summary: failure of test_ossaudiodev; elapsed time .1 sec faster

Initial Comment:
I am getting a consistent failure of test_ossaudiodev
on Ubuntu Hoary on an HP xw4300 Workstation.  The
failure is that the test is printing out "elapsed time:
3.0 sec" while the test expects 3.1 sec.

I don't know anything about sound recordings so I don't
know if there is any way to calculate the expected
length of the test sound file and thus know that this
is a true error or the test is just working faster than
normally expected.

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>Comment By: A.M. Kuchling (akuchling)
Date: 2006-06-07 09:04

Message:
Logged In: YES 
user_id=11375

Yes, the length is calculable -- you have N bytes in the
file, with so many bits per sample and so many samples per
second.  Perhaps the driver now buffers more and the write()
returns earlier?  Or you could try printing the exact
duration without rounding; maybe it's 3.0999999 or something
and the print is just truncating.


Assigning to Greg Ward, in case he gets around to looking at it.


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