[Vm-dev] Re: [Pharo-project] Troubles with #flushCache and #run:with:in:

[Eliot Miranda]

Hi All,

    I'm in touch with Lukas on this but have no time to address it right
now.  worry not :)

On Mon, Jul 11, 2011 at 3:05 AM, Mariano Martinez Peck <
marianopeck at gmail.com> wrote:

>
> Maybe cc'ing VM mailing list can help.
>
> On Fri, Jul 1, 2011 at 9:32 AM, Lukas Renggli <renggli at gmail.com> wrote:
>
>> Hi Eliot,
>>
>> I am using one of the latest VMs from your site (VM.r2434) and I
>> continue to have subtle problems with objects as methods (#flushCache,
>> #run:with:in:).
>>
>> The issue is that the test coverage in Pharo is kind of broken on Cog
>> for a long time already. It reports methods as not covered that are
>> clearly covered, and tests seem to randomly fail.
>>
>> I suspected that there is something wrong with the coverage code
>> itself. So I started to experiment with TestCoverage>>flushCache and
>> noticed that the current implementation
>>
>>    TestCoverage>>flushCache
>>        self reference methodSymbol flushCache
>>
>> performs not that well: The set of not covered methods is wrong and
>> many tests suddenly fail. If I replace it with
>>
>>    TestCoverage>>flushCache
>>        self reference actualClass flushCache
>>
>> I actually get accurate coverage information, but there are still a
>> few tests constantly failing. I tried to use all possible combinations
>> of #flushCache (also calling it on the compiled method), but only
>> flushing the cache on the class seems to work properly. So far so
>> good, but I really wonder what the correct way is to flush the cache?
>> :-)
>>
>> For my experiments I was using the package 'AST-Tests-Semantics'. This
>> is a small package with lots of test methods that cover each method
>> but one (RBSemanticAnnotationMisssing>>#isResumable). Now the "real"
>> problem is that when running these tests in coverage mode, the same 4
>> tests always fail:
>>
>>     RBSemanticTest>>testBlockScope
>>     RBSemanticTest>>testCascadeReceiver
>>     RBSemanticTest>>testClassVariableBinding
>>     RBSemanticTest>>testGlobalVariableBinding
>>
>> Not sure of how to debug that? Do you have an idea why these otherwise
>> passing tests suddenly fail? If you want to try to reproduce you can
>> use any Pharo image with the tests loaded, or use those that I used:
>>
>>
>> http://jenkins.lukas-renggli.ch/job/Development/lastSuccessfulBuild/artifact/omnibrowser-tests/omnibrowser-tests.changes
>>
>> http://jenkins.lukas-renggli.ch/job/Development/lastSuccessfulBuild/artifact/omnibrowser-tests/omnibrowser-tests.image
>>
>> Open the Test Runner, select 'AST-Tests-Semantics' and 'Run Coverage'.
>>
>> Any help or clarification would be appreciated :-)
>>
>> Lukas
>>
>> --
>> Lukas Renggli
>> www.lukas-renggli.ch
>>
>>
>
>
> --
> Mariano
> http://marianopeck.wordpress.com
>
>
>


-- 
best,
Eliot
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