Re: automated (or otherwise) tests for graphics code?

[David Bateman]

Thomas Weber wrote:
> On Thu, Oct 16, 2008 at 01:45:02PM -0400, John W. Eaton wrote:
> > We seem to be having a lot of regressions in the graphics code
> > lately, so maybe it is time to start thinking of some way to provide
> > tests for these functions.  Unfortunately, I don't have any good way
> > to do automatic tests for most of the graphics functions since the
> > results are visual.  
>
> Is this the new backend or the gnuplot one?
>
> It seems gnuplot produces identical images (md5sum matches) for
> identical input. 
>
>         Thomas


Hummm, that will make development harder though as any change to the 
commands sent to gnuplot for any reason might result in a slightly 
different plot, and so a spurious failure. There is still a need for 
some intervention in these cases.. Though perhaps the md5sum with png 
images might be a reasonable solution..

D.


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