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PGF backend, fix #1116, #1118 and #1128 #1124

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Merged
merged 6 commits into from
Aug 22, 2012
Merged

PGF backend, fix #1116, #1118 and #1128 #1124

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f38046b
backend_pgf: rework of the latex communication process for python3
Aug 21, 2012
6b57189
backend_pgf: fix error in exception handling
Aug 21, 2012
bf725a0
backend_pgf: check latex+pgf environment when running tests
Aug 21, 2012
d1d3967
backend_pgf: support writing to file-like objects
Aug 21, 2012
834faf7
backend_pgf: use SkipTest instead knownfailureif, raise comparison to…
Aug 22, 2012
138d55d
backend_pgf: closing subprocess differently, eliminates some py3 warn…
Aug 22, 2012
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backend_pgf: use SkipTest instead knownfailureif, raise comparison to… 
…lerance
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pwuertz committed Aug 22, 2012
commit 834faf7be1e95b4fcce30521e5de981d32b372e3
20 changes: 13 additions & 7 deletions lib/matplotlib/tests/test_backend_pgf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,12 @@
import shutil
import subprocess
import numpy as np
import nose
from nose.plugins.skip import SkipTest
import matplotlib as mpl
import matplotlib.pyplot as plt
from matplotlib.testing.compare import compare_images, ImageComparisonFailure
from matplotlib.testing.decorators import _image_directories, knownfailureif
from matplotlib.testing.decorators import _image_directories

baseline_dir, result_dir = _image_directories(lambda: 'dummy func')

Expand All @@ -28,7 +30,6 @@ def check_for(texsystem):
return latex.returncode == 0

def switch_backend(backend):
import nose

def switch_backend_decorator(func):
def backend_switcher(*args, **kwargs):
Expand All @@ -50,7 +51,7 @@ def compare_figure(fname):

expected = os.path.join(result_dir, "expected_%s" % fname)
shutil.copyfile(os.path.join(baseline_dir, fname), expected)
err = compare_images(expected, actual, tol=1e-4)
err = compare_images(expected, actual, tol=5e-3)
if err:
raise ImageComparisonFailure('images not close: %s vs. %s' % (actual, expected))

Expand All @@ -67,9 +68,11 @@ def create_figure():


# test compiling a figure to pdf with xelatex
@knownfailureif(not check_for('xelatex'), msg='xelatex + pgf is required')
@switch_backend('pgf')
def test_xelatex():
if not check_for('xelatex'):
raise SkipTest('xelatex + pgf is required')

rc_xelatex = {'font.family': 'serif',
'pgf.rcfonts': False,}
mpl.rcParams.update(rc_xelatex)
Expand All @@ -78,9 +81,11 @@ def test_xelatex():


# test compiling a figure to pdf with pdflatex
@knownfailureif(not check_for('pdflatex'), msg='pdflatex + pgf is required')
@switch_backend('pgf')
def test_pdflatex():
if not check_for('pdflatex'):
raise SkipTest('pdflatex + pgf is required')

rc_pdflatex = {'font.family': 'serif',
'pgf.rcfonts': False,
'pgf.texsystem': 'pdflatex',
Expand All @@ -92,10 +97,11 @@ def test_pdflatex():


# test updating the rc parameters for each figure
@knownfailureif(not check_for('xelatex') or not check_for('pdflatex'),
msg="xelatex and pdflatex + pgf required")
@switch_backend('pgf')
def test_rcupdate():
if not check_for('xelatex') or not check_for('pdflatex'):
raise SkipTest('xelatex and pdflatex + pgf required')

rc_sets = []
rc_sets.append({'font.family': 'sans-serif',
'font.size': 30,
Expand Down