/usr/lib/python3/dist-packages/matplotlib/tests/test_mathtext.py is in python3-matplotlib 2.0.0+dfsg1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 | from __future__ import (absolute_import, division, print_function,
unicode_literals)
import six
import io
import numpy as np
import matplotlib
from matplotlib.testing.decorators import image_comparison, knownfailureif, cleanup
import matplotlib.pyplot as plt
from matplotlib import mathtext
math_tests = [
r'$a+b+\dot s+\dot{s}+\ldots$',
r'$x \doteq y$',
r'\$100.00 $\alpha \_$',
r'$\frac{\$100.00}{y}$',
r'$x y$',
r'$x+y\ x=y\ x<y\ x:y\ x,y\ x@y$',
r'$100\%y\ x*y\ x/y x\$y$',
r'$x\leftarrow y\ x\forall y\ x-y$',
r'$x \sf x \bf x {\cal X} \rm x$',
r'$x\ x\,x\;x\quad x\qquad x\!x\hspace{ 0.5 }y$',
r'$\{ \rm braces \}$',
r'$\left[\left\lfloor\frac{5}{\frac{\left(3\right)}{4}} y\right)\right]$',
r'$\left(x\right)$',
r'$\sin(x)$',
r'$x_2$',
r'$x^2$',
r'$x^2_y$',
r'$x_y^2$',
r'$\prod_{i=\alpha_{i+1}}^\infty$',
r'$x = \frac{x+\frac{5}{2}}{\frac{y+3}{8}}$',
r'$dz/dt = \gamma x^2 + {\rm sin}(2\pi y+\phi)$',
r'Foo: $\alpha_{i+1}^j = {\rm sin}(2\pi f_j t_i) e^{-5 t_i/\tau}$',
r'$\mathcal{R}\prod_{i=\alpha_{i+1}}^\infty a_i \sin(2 \pi f x_i)$',
r'Variable $i$ is good',
r'$\Delta_i^j$',
r'$\Delta^j_{i+1}$',
r'$\ddot{o}\acute{e}\grave{e}\hat{O}\breve{\imath}\tilde{n}\vec{q}$',
r"$\arccos((x^i))$",
r"$\gamma = \frac{x=\frac{6}{8}}{y} \delta$",
r'$\limsup_{x\to\infty}$',
r'$\oint^\infty_0$',
r"$f'\quad f'''(x)\quad ''/\mathrm{yr}$",
r'$\frac{x_2888}{y}$',
r"$\sqrt[3]{\frac{X_2}{Y}}=5$",
r"$\sqrt[5]{\prod^\frac{x}{2\pi^2}_\infty}$",
r"$\sqrt[3]{x}=5$",
r'$\frac{X}{\frac{X}{Y}}$',
r"$W^{3\beta}_{\delta_1 \rho_1 \sigma_2} = U^{3\beta}_{\delta_1 \rho_1} + \frac{1}{8 \pi 2} \int^{\alpha_2}_{\alpha_2} d \alpha^\prime_2 \left[\frac{ U^{2\beta}_{\delta_1 \rho_1} - \alpha^\prime_2U^{1\beta}_{\rho_1 \sigma_2} }{U^{0\beta}_{\rho_1 \sigma_2}}\right]$",
r'$\mathcal{H} = \int d \tau \left(\epsilon E^2 + \mu H^2\right)$',
r'$\widehat{abc}\widetilde{def}$',
'$\\Gamma \\Delta \\Theta \\Lambda \\Xi \\Pi \\Sigma \\Upsilon \\Phi \\Psi \\Omega$',
'$\\alpha \\beta \\gamma \\delta \\epsilon \\zeta \\eta \\theta \\iota \\lambda \\mu \\nu \\xi \\pi \\kappa \\rho \\sigma \\tau \\upsilon \\phi \\chi \\psi$',
# The examples prefixed by 'mmltt' are from the MathML torture test here:
# http://www.mozilla.org/projects/mathml/demo/texvsmml.xhtml
r'${x}^{2}{y}^{2}$',
r'${}_{2}F_{3}$',
r'$\frac{x+{y}^{2}}{k+1}$',
r'$x+{y}^{\frac{2}{k+1}}$',
r'$\frac{a}{b/2}$',
r'${a}_{0}+\frac{1}{{a}_{1}+\frac{1}{{a}_{2}+\frac{1}{{a}_{3}+\frac{1}{{a}_{4}}}}}$',
r'${a}_{0}+\frac{1}{{a}_{1}+\frac{1}{{a}_{2}+\frac{1}{{a}_{3}+\frac{1}{{a}_{4}}}}}$',
r'$\binom{n}{k/2}$',
r'$\binom{p}{2}{x}^{2}{y}^{p-2}-\frac{1}{1-x}\frac{1}{1-{x}^{2}}$',
r'${x}^{2y}$',
r'$\sum _{i=1}^{p}\sum _{j=1}^{q}\sum _{k=1}^{r}{a}_{ij}{b}_{jk}{c}_{ki}$',
r'$\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+x}}}}}}}$',
r'$\left(\frac{{\partial }^{2}}{\partial {x}^{2}}+\frac{{\partial }^{2}}{\partial {y}^{2}}\right){|\varphi \left(x+iy\right)|}^{2}=0$',
r'${2}^{{2}^{{2}^{x}}}$',
r'${\int }_{1}^{x}\frac{\mathrm{dt}}{t}$',
r'$\int {\int }_{D}\mathrm{dx} \mathrm{dy}$',
# mathtex doesn't support array
# 'mmltt18' : r'$f\left(x\right)=\left\{\begin{array}{cc}\hfill 1/3\hfill & \text{if_}0\le x\le 1;\hfill \\ \hfill 2/3\hfill & \hfill \text{if_}3\le x\le 4;\hfill \\ \hfill 0\hfill & \text{elsewhere.}\hfill \end{array}$',
# mathtex doesn't support stackrel
# 'mmltt19' : ur'$\stackrel{\stackrel{k\text{times}}{\ufe37}}{x+...+x}$',
r'${y}_{{x}^{2}}$',
# mathtex doesn't support the "\text" command
# 'mmltt21' : r'$\sum _{p\text{\prime}}f\left(p\right)={\int }_{t>1}f\left(t\right) d\pi \left(t\right)$',
# mathtex doesn't support array
# 'mmltt23' : r'$\left(\begin{array}{cc}\hfill \left(\begin{array}{cc}\hfill a\hfill & \hfill b\hfill \\ \hfill c\hfill & \hfill d\hfill \end{array}\right)\hfill & \hfill \left(\begin{array}{cc}\hfill e\hfill & \hfill f\hfill \\ \hfill g\hfill & \hfill h\hfill \end{array}\right)\hfill \\ \hfill 0\hfill & \hfill \left(\begin{array}{cc}\hfill i\hfill & \hfill j\hfill \\ \hfill k\hfill & \hfill l\hfill \end{array}\right)\hfill \end{array}\right)$',
# mathtex doesn't support array
# 'mmltt24' : u'$det|\\begin{array}{ccccc}\\hfill {c}_{0}\\hfill & \\hfill {c}_{1}\\hfill & \\hfill {c}_{2}\\hfill & \\hfill \\dots \\hfill & \\hfill {c}_{n}\\hfill \\\\ \\hfill {c}_{1}\\hfill & \\hfill {c}_{2}\\hfill & \\hfill {c}_{3}\\hfill & \\hfill \\dots \\hfill & \\hfill {c}_{n+1}\\hfill \\\\ \\hfill {c}_{2}\\hfill & \\hfill {c}_{3}\\hfill & \\hfill {c}_{4}\\hfill & \\hfill \\dots \\hfill & \\hfill {c}_{n+2}\\hfill \\\\ \\hfill \\u22ee\\hfill & \\hfill \\u22ee\\hfill & \\hfill \\u22ee\\hfill & \\hfill \\hfill & \\hfill \\u22ee\\hfill \\\\ \\hfill {c}_{n}\\hfill & \\hfill {c}_{n+1}\\hfill & \\hfill {c}_{n+2}\\hfill & \\hfill \\dots \\hfill & \\hfill {c}_{2n}\\hfill \\end{array}|>0$',
r'${y}_{{x}_{2}}$',
r'${x}_{92}^{31415}+\pi $',
r'${x}_{{y}_{b}^{a}}^{{z}_{c}^{d}}$',
r'${y}_{3}^{\prime \prime \prime }$',
r"$\left( \xi \left( 1 - \xi \right) \right)$", # Bug 2969451
r"$\left(2 \, a=b\right)$", # Sage bug #8125
r"$? ! &$", # github issue #466
r'$\operatorname{cos} x$', # github issue #553
r'$\sum _{\genfrac{}{}{0}{}{0\leq i\leq m}{0<j<n}}P\left(i,j\right)$',
r"$\left\Vert a \right\Vert \left\vert b \right\vert \left| a \right| \left\| b\right\| \Vert a \Vert \vert b \vert$",
r'$\mathring{A} \stackrel{\circ}{A} \AA$',
r'$M \, M \thinspace M \/ M \> M \: M \; M \ M \enspace M \quad M \qquad M \! M$',
r'$\Cup$ $\Cap$ $\leftharpoonup$ $\barwedge$ $\rightharpoonup$',
r'$\dotplus$ $\doteq$ $\doteqdot$ $\ddots$',
r'$xyz^kx_kx^py^{p-2} d_i^jb_jc_kd x^j_i E^0 E^0_u$', # github issue #4873
r'${xyz}^k{x}_{k}{x}^{p}{y}^{p-2} {d}_{i}^{j}{b}_{j}{c}_{k}{d} {x}^{j}_{i}{E}^{0}{E}^0_u$',
r'${\int}_x^x x\oint_x^x x\int_{X}^{X}x\int_x x \int^x x \int_{x} x\int^{x}{\int}_{x} x{\int}^{x}_{x}x$',
r'testing$^{123}$',
' '.join('$\\' + p + '$' for p in sorted(mathtext.Parser._snowflake)),
r'$6-2$; $-2$; $ -2$; ${-2}$; ${ -2}$; $20^{+3}_{-2}$',
r'$\overline{\omega}^x \frac{1}{2}_0^x$', # github issue #5444
r'$,$ $.$ $1{,}234{, }567{ , }890$ and $1,234,567,890$', # github issue 5799
]
digits = "0123456789"
uppercase = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
lowercase = "abcdefghijklmnopqrstuvwxyz"
uppergreek = ("\\Gamma \\Delta \\Theta \\Lambda \\Xi \\Pi \\Sigma \\Upsilon \\Phi \\Psi "
"\\Omega")
lowergreek = ("\\alpha \\beta \\gamma \\delta \\epsilon \\zeta \\eta \\theta \\iota "
"\\lambda \\mu \\nu \\xi \\pi \\kappa \\rho \\sigma \\tau \\upsilon "
"\\phi \\chi \\psi")
all = [digits, uppercase, lowercase, uppergreek, lowergreek]
font_test_specs = [
([], all),
(['mathrm'], all),
(['mathbf'], all),
(['mathit'], all),
(['mathtt'], [digits, uppercase, lowercase]),
(['mathcircled'], [digits, uppercase, lowercase]),
(['mathrm', 'mathcircled'], [digits, uppercase, lowercase]),
(['mathbf', 'mathcircled'], [digits, uppercase, lowercase]),
(['mathbb'], [digits, uppercase, lowercase,
r'\Gamma \Pi \Sigma \gamma \pi']),
(['mathrm', 'mathbb'], [digits, uppercase, lowercase,
r'\Gamma \Pi \Sigma \gamma \pi']),
(['mathbf', 'mathbb'], [digits, uppercase, lowercase,
r'\Gamma \Pi \Sigma \gamma \pi']),
(['mathcal'], [uppercase]),
(['mathfrak'], [uppercase, lowercase]),
(['mathbf', 'mathfrak'], [uppercase, lowercase]),
(['mathscr'], [uppercase, lowercase]),
(['mathsf'], [digits, uppercase, lowercase]),
(['mathrm', 'mathsf'], [digits, uppercase, lowercase]),
(['mathbf', 'mathsf'], [digits, uppercase, lowercase])
]
font_tests = []
for fonts, chars in font_test_specs:
wrapper = [' '.join(fonts), ' $']
for font in fonts:
wrapper.append(r'\%s{' % font)
wrapper.append('%s')
for font in fonts:
wrapper.append('}')
wrapper.append('$')
wrapper = ''.join(wrapper)
for set in chars:
font_tests.append(wrapper % set)
def make_set(basename, fontset, tests, extensions=None):
def make_test(filename, test):
@image_comparison(baseline_images=[filename], extensions=extensions, tol=0.310)
def single_test():
matplotlib.rcParams['mathtext.fontset'] = fontset
fig = plt.figure(figsize=(5.25, 0.75))
fig.text(0.5, 0.5, test, horizontalalignment='center', verticalalignment='center')
func = single_test
func.__name__ = str("test_" + filename)
return func
# We inject test functions into the global namespace, rather than
# using a generator, so that individual tests can be run more
# easily from the commandline and so each test will have its own
# result.
for i, test in enumerate(tests):
filename = '%s_%s_%02d' % (basename, fontset, i)
globals()['test_%s' % filename] = make_test(filename, test)
make_set('mathtext', 'cm', math_tests)
make_set('mathtext', 'stix', math_tests)
make_set('mathtext', 'stixsans', math_tests)
make_set('mathtext', 'dejavusans', math_tests)
make_set('mathtext', 'dejavuserif', math_tests)
make_set('mathfont', 'cm', font_tests, ['png'])
make_set('mathfont', 'stix', font_tests, ['png'])
make_set('mathfont', 'stixsans', font_tests, ['png'])
make_set('mathfont', 'dejavusans', font_tests, ['png'])
make_set('mathfont', 'dejavuserif', font_tests, ['png'])
def test_fontinfo():
import matplotlib.font_manager as font_manager
import matplotlib.ft2font as ft2font
fontpath = font_manager.findfont("DejaVu Sans")
font = ft2font.FT2Font(fontpath)
table = font.get_sfnt_table("head")
assert table['version'] == (1, 0)
def test_mathtext_exceptions():
errors = [
(r'$\hspace{}$', r'Expected \hspace{n}'),
(r'$\hspace{foo}$', r'Expected \hspace{n}'),
(r'$\frac$', r'Expected \frac{num}{den}'),
(r'$\frac{}{}$', r'Expected \frac{num}{den}'),
(r'$\stackrel$', r'Expected \stackrel{num}{den}'),
(r'$\stackrel{}{}$', r'Expected \stackrel{num}{den}'),
(r'$\binom$', r'Expected \binom{num}{den}'),
(r'$\binom{}{}$', r'Expected \binom{num}{den}'),
(r'$\genfrac$', r'Expected \genfrac{ldelim}{rdelim}{rulesize}{style}{num}{den}'),
(r'$\genfrac{}{}{}{}{}{}$', r'Expected \genfrac{ldelim}{rdelim}{rulesize}{style}{num}{den}'),
(r'$\sqrt$', r'Expected \sqrt{value}'),
(r'$\sqrt f$', r'Expected \sqrt{value}'),
(r'$\overline$', r'Expected \overline{value}'),
(r'$\overline{}$', r'Expected \overline{value}'),
(r'$\leftF$', r'Expected a delimiter'),
(r'$\rightF$', r'Unknown symbol: \rightF'),
(r'$\left(\right$', r'Expected a delimiter'),
(r'$\left($', r'Expected "\right"')
]
parser = mathtext.MathTextParser('agg')
for math, msg in errors:
try:
parser.parse(math)
except ValueError as e:
exc = str(e).split('\n')
assert exc[3].startswith(msg)
else:
assert False, "Expected '%s', but didn't get it" % msg
@cleanup
def test_single_minus_sign():
plt.figure(figsize=(0.3, 0.3))
plt.text(0.5, 0.5, '$-$')
for spine in plt.gca().spines.values():
spine.set_visible(False)
plt.gca().set_xticks([])
plt.gca().set_yticks([])
buff = io.BytesIO()
plt.savefig(buff, format="rgba", dpi=1000)
array = np.fromstring(buff.getvalue(), dtype=np.uint8)
# If this fails, it would be all white
assert not np.all(array == 0xff)
if __name__ == '__main__':
import nose
nose.runmodule(argv=['-s', '--with-doctest'], exit=False)
|