/usr/share/pyshared/matplotlib/tests/test_backend_svg.py is in python-matplotlib 1.3.1-1ubuntu5.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | from __future__ import print_function
import matplotlib.pyplot as plt
import numpy as np
import sys
from io import BytesIO
import xml.parsers.expat
from matplotlib.testing.decorators import knownfailureif, cleanup
from matplotlib.testing.decorators import image_comparison
@cleanup
def test_visibility():
# This is SF 2856495. See
# https://sourceforge.net/tracker/?func=detail&aid=2856495&group_id=80706&atid=560720
fig=plt.figure()
ax=fig.add_subplot(1,1,1)
x = np.linspace(0,4*np.pi,50)
y = np.sin(x)
yerr = np.ones_like(y)
a,b,c=ax.errorbar(x,y,yerr=yerr,fmt='ko')
for artist in b:
artist.set_visible(False)
fd = BytesIO()
fig.savefig(fd,format='svg')
fd.seek(0)
buf = fd.read()
fd.close()
parser = xml.parsers.expat.ParserCreate()
parser.Parse(buf) # this will raise ExpatError if the svg is invalid
@image_comparison(baseline_images=['noscale'], remove_text=True)
def test_noscale():
X, Y = np.meshgrid(np.arange(-5, 5, 1), np.arange(-5, 5, 1))
Z = np.sin(Y**2)
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
ax.imshow(Z, cmap='gray')
plt.rcParams['svg.image_noscale'] = True
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