FW: [Bioperl-l] need help making biographics tests

[Hilmar Lapp]

Hmm. This is not going to be very extensible to neither additional 
platforms nor additional tests, and maintenance won't be fun 
either.  Assuming that the problem is related to byte order, date 
encodings, character encodings, and similar things, what about 
converting before the comparison step all generated images to a text 
format, e.g. PGM or PNM, which would be unaffected by any of the 
aforementioned problems, and would compare the pixel values only 
(PGM doesn't contain much more). So long as the images aren't 
largish ...

Just a suggestion.

	-hilmar

On Saturday, July 20, 2002, at 06:49  AM, Lincoln Stein wrote:

> Hi All,
>
> There is an annoying problem with the bio::graphics module.  Depending
> on the combination of various versions of libgd, libfreetype and
> libpng that happen to be installed on the target system, bio::graphics
> will generate visually identically but binary different picture files.
> As a result, the first three regression tests fail when run on a
> different machine from which they were generated.
>
> To fix this, I need to collect images generated on various
> architectures.  Could you help me out by doing the following?
>
>   1) cd to the "live" bioperl
>   2) run the command perl t/BioGraphics.t --write
>   3) find the generated files t/data/biographics/t1.png, t2.png and
>      t3.png and send them to me as attachments?
>
> I will construct the set of unique variants and rewrite the regression
> tests to return true if any of them match.
>
> Thanks much!
>
> Lincoln
>
>
> --
> ========================================================================
> Lincoln D. Stein                           Cold Spring Harbor 
> Laboratory
> lstein@cshl.org			                  Cold Spring Harbor, NY
> Positions available at my lab: see http://stein.cshl.org/#hire
> ========================================================================
> _______________________________________________
> Bioperl-l mailing list
> Bioperl-l@bioperl.org
> http://bioperl.org/mailman/listinfo/bioperl-l
>
	-hilmar
--
-------------------------------------------------------------
Hilmar Lapp                            email: lapp at gnf.org
GNF, San Diego, Ca. 92121              phone: +1-858-812-1757
-------------------------------------------------------------