Comparing pdf output in tests

Andrew Straw <strawman@...36...> writes:

This test function is a generator that nose will then generate two test
cases out of. So, perhaps the image_comparison decorator could be
changed to become a generator? I'm not 100% sure it will work, but I
don't see why it won't. If it does work, I think this is a good idea.

It seems to have worked. The build slave with gs shows 65 tests with 2
known failures, and the one without gs shows 30 known failures:

http://mpl-buildbot.code.astraw.com/builders/Ubuntu%208.04%2C%20Python%202.5%2C%20amd64/builds/167/steps/test/logs/stdio
http://mpl-buildbot.code.astraw.com/builders/Ubuntu%208.04%2C%20Python%202.5%2C%20amd64%2C%20no%20dvipng%2C%20no%20latex/builds/91/steps/test/logs/stdio

···

--
Jouni K. Sepp�nen
http://www.iki.fi/jks

Jouni K. Seppänen wrote:

Andrew Straw <strawman@...36...> writes:

This test function is a generator that nose will then generate two test
cases out of. So, perhaps the image_comparison decorator could be
changed to become a generator? I'm not 100% sure it will work, but I
don't see why it won't. If it does work, I think this is a good idea.
    
It seems to have worked. The build slave with gs shows 65 tests with 2
known failures, and the one without gs shows 30 known failures:

http://mpl-buildbot.code.astraw.com/builders/Ubuntu%208.04%2C%20Python%202.5%2C%20amd64/builds/167/steps/test/logs/stdio
http://mpl-buildbot.code.astraw.com/builders/Ubuntu%208.04%2C%20Python%202.5%2C%20amd64%2C%20no%20dvipng%2C%20no%20latex/builds/91/steps/test/logs/stdio

Great -- I think this is nice from a test-writer perspective, and I
think it tests just what we want to test -- the appearance of the pdfs.
I think this idea could be easily extended to the ps format and, if
inkscape was installed, we could use the --export-png option to test svg.

Thanks,
Andrew