Jouni K. Seppänen wrote: > Andrew Straw <straw...@astraw.com> writes: > > >> Michael Droettboom wrote: >> >>> We can probably standardize the version of gs on the buildbot machines, >>> but it's been very useful up to now to have tests that can run on a >>> variety of developer machines as well. >>> >>> >> I understood Jouni's idea to be to save the .pdfs as baseline images -- >> then the same version of gs would be used to generated the rasterized >> images for the baseline and test result -- the version on your computer. >> I think this is the way to go (either that or compare the PDFs directly >> somehow). >> > > Yes, that's what I meant: we want to test that the PDF file generated by > the code is "equivalent" to the baseline, and aside from some metadata > in the files, I think "equivalence" should mean that the files generate > the same rasterized output on some particular PDF renderer. > > I suppose Ghostscript is widespread enough that we can assume that it > exists in the test environment? Or is there some buildout magic that we > should add in some file? > We can always use "gs --version" in subprocess.check_call() and if it's not installed (or if there's some other error with it) just not compare the pdf output. That way we still test that the pdf generation at least doesn't raise an exception, and a test pdf is generated for later inspection if need be.
Jouni - I don't think this would be hard to add, but I'm swamped at work. If this is an itch you'd like to scratch, feel free to hack away on the image_comparison() function in lib/matplotlib/testing/decorators.py -- it's a pretty straightforward piece of code. -Andrew ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
