[V3dot10] Help needed with RenderBugz

[Jerome Peace]

Help needed with RenderBugz
***
>Monday, May 12, 2008 4:22 PM
>From:
>"Ken Causey" <ken at kencausey.com>
>
>To:
>"Jerome Peace" <peace_the_dreamer at yahoo.com>
>Cc:
>"Discussion about development of Squeak 3.10"
><v3dot10 at lists.squeakfoundation.org>
>Message contains attachments
>
>I made the changes related to the time issues and now when I rerun all
>the tests I get a new failure on RenderBugz.  Rerunning all the tests
>seems to consistently result in a failure on RenderBugz, but not
>necessarily the same test each time.  Also for some reason I can't debug
>failures on these tests.  If I run each individually it works just fine.
>Similarly if I run the entire RenderBugz testcase it works.  These tests
>use timing as part of the test and I suspect that's where the problem
>is, but I'm not certain as there are multiple failure modes and I can't
>seem to get any information as to how exactly it failed.  Help would be
>appreciated.
>

I am puzzled. I can't see why the tests should fail 
if the patches are in place.
And if that were the case the tests should fail consistenly.
Are the failures due to the assertion or due to time running out?

The other thing you could try is to give a different time limit.  
I used 1 millisecond because that should be enough. 

If some other process is running at the same time as the test and 
at a higher priority it may be causing a delay where no delay is expected. That would account for the time part of the test failing.

How long does a GC take? 
Add that to the time limit and see if the tests will always pass. 
(But a gc during the tests should be a rarity. 
And not as reproducible as you are suggesting.)

It would also point to something other than the test 
being wrong with the recent fix.

There are possibly still tests that 
do not return conditions to "standard" after being run.
LanEnvBugs>>testIsFontAvailable is known to change 
the default fonts w/o properly restoring them. 
This causes the second pass of tests to work 
differently than the first. 
So removing that class before running tests might stablize things.


Hth,

Yours in curiosity and service, --Jerome Peace

>Ken
>
>
***



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