I've committed support for comparing SVG files using Inkscape and
verifying them against the official SVG DTD using xmllint.
Michael Droettboom wrote:
> Andrew Straw wrote:
>
>> Done in r7863. To make use of it, do something like the following patch
>> (and don't forget to delete the baseline .pdf files from the repository):
>>
>> -...@image_comparison(baseline_images=['simplify_curve'])
>> +...@image_comparison(baseline_images=['simplify_curve'],extensions=['png'])
>>
>>
> Great!
>
This is a nice feature. However, in hindsight, I may not use it right
away -- I actually found a bug in the SVG backend using one of the tests
I assumed would only affect the Agg backend. :)
A couple more comments about the test framework -- which has already
paid for itself ten times over. In Numpy (and a number of local Python
projects), I can 'cd' to the tests directory and do something like:
nosetests test_simplification.py:test_hatch_simplify
and run on particular test, or a single file of tests. It's a huge time
saver when trying to fix a bug. However, with matplotlib I get:
> nosetests test_simplification.py
E
======================================================================
ERROR: Failure: ImportError (cannot import name cbook)
----------------------------------------------------------------------
Traceback (most recent call last):
File
"/wonkabar/data1/usr/lib/python2.5/site-packages/nose-0.11.1-py2.5.egg/nose/loader.py",
line 379, in loadTestsFromName
addr.filename, addr.module)
File
"/wonkabar/data1/usr/lib/python2.5/site-packages/nose-0.11.1-py2.5.egg/nose/importer.py",
line 39, in importFromPath
return self.importFromDir(dir_path, fqname)
File
"/wonkabar/data1/usr/lib/python2.5/site-packages/nose-0.11.1-py2.5.egg/nose/importer.py",
line 86, in importFromDir
mod = load_module(part_fqname, fh, filename, desc)
File
"/wonkabar/data1/builds/matplotlib/build/lib.linux-i686-2.5/matplotlib/tests/test_simplification.py",
line 4, in <module>
import matplotlib.pyplot as plt
File
"/wonkabar/data1/builds/matplotlib/build/lib.linux-i686-2.5/matplotlib/pyplot.py",
line 6, in <module>
from matplotlib import docstring
File
"/wonkabar/data1/builds/matplotlib/build/lib.linux-i686-2.5/matplotlib/docstring.py",
line 1, in <module>
from matplotlib import cbook
ImportError: cannot import name cbook
----------------------------------------------------------------------
Ran 1 test in 0.009s
FAILED (errors=1)
I suspect this is something peculiar to how matplotlib gets imported.
Also, I have a quad-core machine, so I put this in my .noserc, which
will run tests in parallel:
[nosetests]
processes=4
Unfortunately, due to however matplotlib is delegating to nose, this
doesn't seem to get picked up.
I don't know if I'll get a chance to look at these things right away,
but thought I'd share in case the solutions are obvious to anyone else
(which I know isn't good form, but hey... ;)
Cheers,
Mike
--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA
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