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Merged
merged 8 commits into from
Aug 5, 2012
Merged

Make tests faster #778

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b58aa94
Change generated filenames. Put the phrases "expected" and "failed-d…
mdboom Apr 17, 2012
2ad49ae
Use bincount rather than histogram for comparing images on Numpy >= 1…
mdboom Apr 17, 2012
b3c7bcd
Cache results of previous {PDF|SVG} -> PNG conversions. We can only …
mdboom Apr 17, 2012
d638c9b
Use python-ghostscript to convert PDF and EPS to PNG (if available).
mdboom Apr 17, 2012
bf23f41
Use the same gs process to convert all of the images from PDF to PS
mdboom May 7, 2012
342de60
Add a new kwarg to the image_comparison decorator, remove_text, which…
mdboom May 7, 2012
bd8eaeb
Remove obsolete docs about using ghostscript library since using it d…
mdboom May 8, 2012
16f450f
Fix tests after rebase
mdboom Jun 13, 2012
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Use python-ghostscript to convert PDF and EPS to PNG (if available).
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@mdboom
mdboom committed Jun 13, 2012
commit d638c9b5eed082e509cb6f39019be5a92af9ac1f
7 changes: 7 additions & 0 deletions doc/devel/coding_guide.rst
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Expand Up @@ -381,6 +381,13 @@ The following software is required to run the tests:

- `Inkscape <http://inkscape.org>`_ (to render SVG files)

For additional speed, you may also wish to install:

- `python-ghostscript <http://pypi.python.org/pypi/ghostscript>` (to
use ghostscript as a library from Python)::

pip install ghostscript

Running the tests
-----------------

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37 changes: 26 additions & 11 deletions lib/matplotlib/testing/compare.py
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Expand Up @@ -138,17 +138,32 @@ def convert(old, new):

return convert

if matplotlib.checkdep_ghostscript() is not None:
# FIXME: make checkdep_ghostscript return the command
if sys.platform == 'win32':
gs = 'gswin32c'
else:
gs = 'gs'
cmd = lambda old, new: \
[gs, '-q', '-sDEVICE=png16m', '-dNOPAUSE', '-dBATCH',
'-sOutputFile=' + new, old]
converter['pdf'] = make_external_conversion_command(cmd)
converter['eps'] = make_external_conversion_command(cmd)
try:
import ghostscript
except ImportError:
if matplotlib.checkdep_ghostscript() is not None:
# FIXME: make checkdep_ghostscript return the command
if sys.platform == 'win32':
gs = 'gswin32c'
else:
gs = 'gs'
cmd = lambda old, new: \
[gs, '-q', '-sDEVICE=png16m', '-dNOPAUSE', '-dBATCH', '-dSAFER',
'-sOutputFile=' + new, old]
converter['pdf'] = make_external_conversion_command(cmd)
converter['eps'] = make_external_conversion_command(cmd)
else:
def ghostscript_lib_converter(old, new):
args = [
'matplotlib', '-q', '-sDEVICE=png16m', '-dNOPAUSE', '-dBATCH',
'-dSAFER', '-sOutputFile=' + new, old]
try:
gs = ghostscript.Ghostscript(*args)
finally:
gs.exit()
ghostscript.cleanup()
converter['pdf'] = ghostscript_lib_converter
converter['eps'] = ghostscript_lib_converter

if matplotlib.checkdep_inkscape() is not None:
cmd = lambda old, new: \
Expand Down