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List:       kde-kimageshop
Subject:    Re: our failing unittests...
From:       Boudewijn Rempt <boud () valdyas ! org>
Date:       2011-03-08 5:20:28
Message-ID: 201103081038.28187.boud () valdyas ! org
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On Monday 07 March 2011, Silvio Heinrich wrote:
> On 03/07/2011 06:49 AM, Boudewijn Rempt wrote:
> > Silvio -- for the extra ops you have added, do we have tests as well?
> > 
> O_o well... err... no.
> You don't really want me to write a test for every CompositeOp? :D

Well.. Having tests help with regressions, and we have had some regressions in \
composite op code before. Can't we figure out a way to generate these tests?

> This would be at least 2 tests for one OP (with and without alpha locking).
> How many do exist right now 50 or 60?
> And I think different they should be tested with different color 
> spaces/bit depths too (RGBA 8bit, RGBA 16bit, RGBA float16bit, and so on...)
> I mean if it is absolutely necessary the most sane solution would be to 
> create little reference images for the OPs.
> A source image and a destination image and then for every CompositeOp an 
> image with the expected result of this CompositeOp.
> And then the Test combines the source and destination image with every 
> CompositeOp and tests the result against the reference images.
> Well, I don't know if it's worth the effort.

We can generate the images and then have the tests run in a loop, it should be fairly \
simple. 


-- 
Boudewijn Rempt | http://www.valdyas.org, http://www.krita.org
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