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test_ext_math.py
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test_ext_math.py
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"""
test_ext_math
~~~~~~~~~~~~~
Test math extensions.
:copyright: Copyright 2007-2021 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
import subprocess
import warnings
import pytest
from docutils import nodes
from sphinx.ext.mathjax import MATHJAX_URL
from sphinx.testing.util import assert_node
def has_binary(binary):
try:
subprocess.check_output([binary])
except FileNotFoundError:
return False
except OSError:
pass
return True
@pytest.mark.skipif(not has_binary('dvipng'),
reason='Requires dvipng" binary')
@pytest.mark.sphinx('html', testroot='ext-math-simple',
confoverrides = {'extensions': ['sphinx.ext.imgmath']})
def test_imgmath_png(app, status, warning):
app.builder.build_all()
if "LaTeX command 'latex' cannot be run" in warning.getvalue():
raise pytest.skip.Exception('LaTeX command "latex" is not available')
if "dvipng command 'dvipng' cannot be run" in warning.getvalue():
raise pytest.skip.Exception('dvipng command "dvipng" is not available')
content = (app.outdir / 'index.html').read_text()
html = (r'<div class="math">\s*<p>\s*<img src="_images/math/\w+.png"'
r'\s*alt="a\^2\+b\^2=c\^2"/>\s*</p>\s*</div>')
assert re.search(html, content, re.S)
@pytest.mark.skipif(not has_binary('dvisvgm'),
reason='Requires dvisvgm" binary')
@pytest.mark.sphinx('html', testroot='ext-math-simple',
confoverrides={'extensions': ['sphinx.ext.imgmath'],
'imgmath_image_format': 'svg'})
def test_imgmath_svg(app, status, warning):
app.builder.build_all()
if "LaTeX command 'latex' cannot be run" in warning.getvalue():
raise pytest.skip.Exception('LaTeX command "latex" is not available')
if "dvisvgm command 'dvisvgm' cannot be run" in warning.getvalue():
raise pytest.skip.Exception('dvisvgm command "dvisvgm" is not available')
content = (app.outdir / 'index.html').read_text()
html = (r'<div class="math">\s*<p>\s*<img src="_images/math/\w+.svg"'
r'\s*alt="a\^2\+b\^2=c\^2"/>\s*</p>\s*</div>')
assert re.search(html, content, re.S)
@pytest.mark.sphinx('html', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.mathjax'],
'mathjax_options': {'integrity': 'sha384-0123456789'}})
def test_mathjax_options(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'index.html').read_text()
assert ('<script async="async" integrity="sha384-0123456789" '
'src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js">'
'</script>' in content)
@pytest.mark.sphinx('html', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.mathjax']})
def test_mathjax_align(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'index.html').read_text()
html = (r'<div class="math notranslate nohighlight">\s*'
r'\\\[ \\begin\{align\}\\begin\{aligned\}S \&= \\pi r\^2\\\\'
r'V \&= \\frac\{4\}\{3\} \\pi r\^3\\end\{aligned\}\\end\{align\} \\\]</div>')
assert re.search(html, content, re.S)
@pytest.mark.sphinx('html', testroot='ext-math',
confoverrides={'math_number_all': True,
'extensions': ['sphinx.ext.mathjax']})
def test_math_number_all_mathjax(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'index.html').read_text()
html = (r'<div class="math notranslate nohighlight" id="equation-index-0">\s*'
r'<span class="eqno">\(1\)<a .*>\xb6</a></span>\\\[a\^2\+b\^2=c\^2\\\]</div>')
assert re.search(html, content, re.S)
@pytest.mark.sphinx('latex', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.mathjax']})
def test_math_number_all_latex(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'python.tex').read_text()
macro = (r'\\begin{equation\*}\s*'
r'\\begin{split}a\^2\+b\^2=c\^2\\end{split}\s*'
r'\\end{equation\*}')
assert re.search(macro, content, re.S)
macro = r'Inline \\\(E=mc\^2\\\)'
assert re.search(macro, content, re.S)
macro = (r'\\begin{equation\*}\s*'
r'\\begin{split}e\^{i\\pi}\+1=0\\end{split}\s+'
r'\\end{equation\*}')
assert re.search(macro, content, re.S)
macro = (r'\\begin{align\*}\\!\\begin{aligned}\s*'
r'S &= \\pi r\^2\\\\\s*'
r'V &= \\frac\{4}\{3} \\pi r\^3\\\\\s*'
r'\\end{aligned}\\end{align\*}')
assert re.search(macro, content, re.S)
macro = r'Referencing equation \\eqref{equation:math:foo}.'
assert re.search(macro, content, re.S)
@pytest.mark.sphinx('html', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.mathjax'],
'math_eqref_format': 'Eq.{number}'})
def test_math_eqref_format_html(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'math.html').read_text()
html = ('<p>Referencing equation <a class="reference internal" '
'href="#equation-foo">Eq.1</a> and <a class="reference internal" '
'href="#equation-foo">Eq.1</a>.</p>')
assert html in content
@pytest.mark.sphinx('latex', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.mathjax'],
'math_eqref_format': 'Eq.{number}'})
def test_math_eqref_format_latex(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'python.tex').read_text()
macro = (r'Referencing equation Eq.\\ref{equation:math:foo} and '
r'Eq.\\ref{equation:math:foo}.')
assert re.search(macro, content, re.S)
@pytest.mark.sphinx('html', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.mathjax'],
'numfig': True,
'math_numfig': True})
def test_mathjax_numfig_html(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'math.html').read_text()
html = ('<div class="math notranslate nohighlight" id="equation-math-0">\n'
'<span class="eqno">(1.2)')
assert html in content
html = ('<p>Referencing equation <a class="reference internal" '
'href="#equation-foo">(1.1)</a> and '
'<a class="reference internal" href="#equation-foo">(1.1)</a>.</p>')
assert html in content
@pytest.mark.sphinx('html', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.imgmath'],
'numfig': True,
'numfig_secnum_depth': 0,
'math_numfig': True})
def test_imgmath_numfig_html(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'page.html').read_text()
html = '<span class="eqno">(3)<a class="headerlink" href="#equation-bar"'
assert html in content
html = ('<p>Referencing equations <a class="reference internal" '
'href="math.html#equation-foo">(1)</a> and '
'<a class="reference internal" href="#equation-bar">(3)</a>.</p>')
assert html in content
@pytest.mark.sphinx('dummy', testroot='ext-math-compat')
def test_math_compat(app, status, warning):
with warnings.catch_warnings(record=True):
app.builder.build_all()
doctree = app.env.get_and_resolve_doctree('index', app.builder)
assert_node(doctree,
[nodes.document, nodes.section, (nodes.title,
[nodes.section, (nodes.title,
nodes.paragraph)],
nodes.section)])
assert_node(doctree[0][1][1],
('Inline: ',
[nodes.math, "E=mc^2"],
'\nInline my math: ',
[nodes.math, "E = mc^2"]))
assert_node(doctree[0][2],
([nodes.title, "block"],
[nodes.math_block, "a^2+b^2=c^2\n\n"],
[nodes.paragraph, "Second math"],
[nodes.math_block, "e^{i\\pi}+1=0\n\n"],
[nodes.paragraph, "Multi math equations"],
[nodes.math_block, "E = mc^2"]))
@pytest.mark.sphinx('html', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.mathjax'],
'mathjax3_config': {'extensions': ['tex2jax.js']}})
def test_mathjax3_config(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'index.html').read_text()
assert MATHJAX_URL in content
assert ('<script>window.MathJax = {"extensions": ["tex2jax.js"]}</script>' in content)
@pytest.mark.sphinx('html', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.mathjax'],
'mathjax2_config': {'extensions': ['tex2jax.js']}})
def test_mathjax2_config(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'index.html').read_text()
assert MATHJAX_URL in content
assert ('<script type="text/x-mathjax-config">'
'MathJax.Hub.Config({"extensions": ["tex2jax.js"]})'
'</script>' in content)
@pytest.mark.sphinx('html', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.mathjax']})
def test_mathjax_is_installed_only_if_document_having_math(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'index.html').read_text()
assert MATHJAX_URL in content
content = (app.outdir / 'nomath.html').read_text()
assert MATHJAX_URL not in content
@pytest.mark.sphinx('html', testroot='basic',
confoverrides={'extensions': ['sphinx.ext.mathjax']})
def test_mathjax_is_not_installed_if_no_equations(app, status, warning):
app.builder.build_all()
content = (app.outdir / 'index.html').read_text()
assert 'MathJax.js' not in content
@pytest.mark.sphinx('html', testroot='ext-math',
confoverrides={'extensions': ['sphinx.ext.mathjax']})
def test_mathjax_is_installed_if_no_equations_when_forced(app, status, warning):
app.set_html_assets_policy('always')
app.builder.build_all()
content = (app.outdir / 'index.html').read_text()
assert MATHJAX_URL in content
content = (app.outdir / 'nomath.html').read_text()
assert MATHJAX_URL in content