/usr/share/pyshared/matplotlib/tests/test_mathtext.py is in python-matplotlib 1.1.1~rc1+git20120423-0ubuntu1.
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import matplotlib
from matplotlib.testing.decorators import image_comparison, knownfailureif
import matplotlib.pyplot as plt
math_tests = [
r'$a+b+\dots+\dot{s}+\ldots$',
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"$f'$",
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'$\widehat{abc}\widetilde{def}$',
r'$\Gamma \Delta \Theta \Lambda \Xi \Pi \Sigma \Upsilon \Phi \Psi \Omega$',
r'$\alpha \beta \gamma \delta \epsilon \zeta \eta \theta \iota \lambda \mu \nu \xi \pi \kappa \rho \sigma \tau \upsilon \phi \chi \psi$',
# r'$\operatorname{cos} x$',
# 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'$\binom{p}{2}{x}^{2}{y}^{p-2}-\frac{1}{1-x}\frac{1}{1-{x}^{2}}$',
# 'mmltt10' : r'$\sum _{\genfrac{}{}{0}{}{0\leq i\leq m}{0<j<n}}P\left(i,j\right)$',
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
]
digits = "0123456789"
uppercase = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
lowercase = "abcdefghijklmnopqrstuvwxyz"
uppergreek = (r"\Gamma \Delta \Theta \Lambda \Xi \Pi \Sigma \Upsilon \Phi \Psi "
r"\Omega")
lowergreek = (r"\alpha \beta \gamma \delta \epsilon \zeta \eta \theta \iota "
r"\lambda \mu \nu \xi \pi \kappa \rho \sigma \tau \upsilon "
r"\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,
freetype_version=('2.4.5', '2.4.9'))
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__ = filename + "_test"
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('mathfont', 'cm', font_tests, ['png'])
make_set('mathfont', 'stix', font_tests, ['png'])
make_set('mathfont', 'stixsans', font_tests, ['png'])
def test_fontinfo():
import matplotlib.font_manager as font_manager
import matplotlib.ft2font as ft2font
fontpath = font_manager.findfont("Bitstream Vera Sans")
font = ft2font.FT2Font(fontpath)
table = font.get_sfnt_table("head")
assert table['version'] == (1, 0)
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