1 files changed, 378 insertions, 0 deletions
diff --git a/tests/test_builders/test_build_html.py b/tests/test_builders/test_build_html.py
new file mode 100644
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+++ b/tests/test_builders/test_build_html.py
@@ -0,0 +1,378 @@
+"""Test the HTML builder and check output against XPath."""
+
+import os
+import posixpath
+import re
+
+import pytest
+
+from sphinx.builders.html import validate_html_extra_path, validate_html_static_path
+from sphinx.deprecation import RemovedInSphinx80Warning
+from sphinx.errors import ConfigError
+from sphinx.util.console import strip_colors
+from sphinx.util.inventory import InventoryFile
+
+from tests.test_builders.xpath_data import FIGURE_CAPTION
+from tests.test_builders.xpath_util import check_xpath
+
+
+def test_html4_error(make_app, tmp_path):
+    (tmp_path / 'conf.py').write_text('', encoding='utf-8')
+    with pytest.raises(
+        ConfigError,
+        match='HTML 4 is no longer supported by Sphinx',
+    ):
+        make_app(
+            buildername='html',
+            srcdir=tmp_path,
+            confoverrides={'html4_writer': True},
+        )
+
+
+@pytest.mark.parametrize(("fname", "path", "check"), [
+    ('index.html', ".//div[@class='citation']/span", r'Ref1'),
+    ('index.html', ".//div[@class='citation']/span", r'Ref_1'),
+
+    ('footnote.html', ".//a[@class='footnote-reference brackets'][@href='#id9'][@id='id1']", r"1"),
+    ('footnote.html', ".//a[@class='footnote-reference brackets'][@href='#id10'][@id='id2']", r"2"),
+    ('footnote.html', ".//a[@class='footnote-reference brackets'][@href='#foo'][@id='id3']", r"3"),
+    ('footnote.html', ".//a[@class='reference internal'][@href='#bar'][@id='id4']/span", r"\[bar\]"),
+    ('footnote.html', ".//a[@class='reference internal'][@href='#baz-qux'][@id='id5']/span", r"\[baz_qux\]"),
+    ('footnote.html', ".//a[@class='footnote-reference brackets'][@href='#id11'][@id='id6']", r"4"),
+    ('footnote.html', ".//a[@class='footnote-reference brackets'][@href='#id12'][@id='id7']", r"5"),
+    ('footnote.html', ".//aside[@class='footnote brackets']/span/a[@href='#id1']", r"1"),
+    ('footnote.html', ".//aside[@class='footnote brackets']/span/a[@href='#id2']", r"2"),
+    ('footnote.html', ".//aside[@class='footnote brackets']/span/a[@href='#id3']", r"3"),
+    ('footnote.html', ".//div[@class='citation']/span/a[@href='#id4']", r"bar"),
+    ('footnote.html', ".//div[@class='citation']/span/a[@href='#id5']", r"baz_qux"),
+    ('footnote.html', ".//aside[@class='footnote brackets']/span/a[@href='#id6']", r"4"),
+    ('footnote.html', ".//aside[@class='footnote brackets']/span/a[@href='#id7']", r"5"),
+    ('footnote.html', ".//aside[@class='footnote brackets']/span/a[@href='#id8']", r"6"),
+])
+@pytest.mark.sphinx('html')
+@pytest.mark.test_params(shared_result='test_build_html_output_docutils18')
+def test_docutils_output(app, cached_etree_parse, fname, path, check):
+    app.build()
+    check_xpath(cached_etree_parse(app.outdir / fname), fname, path, check)
+
+
+@pytest.mark.sphinx('html', parallel=2)
+def test_html_parallel(app):
+    app.build()
+
+
+@pytest.mark.sphinx('html', testroot='build-html-translator')
+def test_html_translator(app):
+    app.build()
+    assert app.builder.docwriter.visitor.depart_with_node == 10
+
+
+@pytest.mark.parametrize("expect", [
+    (FIGURE_CAPTION + "//span[@class='caption-number']", "Fig. 1", True),
+    (FIGURE_CAPTION + "//span[@class='caption-number']", "Fig. 2", True),
+    (FIGURE_CAPTION + "//span[@class='caption-number']", "Fig. 3", True),
+    (".//div//span[@class='caption-number']", "No.1 ", True),
+    (".//div//span[@class='caption-number']", "No.2 ", True),
+    (".//li/p/a/span", 'Fig. 1', True),
+    (".//li/p/a/span", 'Fig. 2', True),
+    (".//li/p/a/span", 'Fig. 3', True),
+    (".//li/p/a/span", 'No.1', True),
+    (".//li/p/a/span", 'No.2', True),
+])
+@pytest.mark.sphinx('html', testroot='add_enumerable_node',
+                    srcdir='test_enumerable_node')
+def test_enumerable_node(app, cached_etree_parse, expect):
+    app.build()
+    check_xpath(cached_etree_parse(app.outdir / 'index.html'), 'index.html', *expect)
+
+
+@pytest.mark.sphinx('html', testroot='basic', confoverrides={'html_copy_source': False})
+def test_html_copy_source(app):
+    app.build(force_all=True)
+    assert not (app.outdir / '_sources' / 'index.rst.txt').exists()
+
+
+@pytest.mark.sphinx('html', testroot='basic', confoverrides={'html_sourcelink_suffix': '.txt'})
+def test_html_sourcelink_suffix(app):
+    app.build(force_all=True)
+    assert (app.outdir / '_sources' / 'index.rst.txt').exists()
+
+
+@pytest.mark.sphinx('html', testroot='basic', confoverrides={'html_sourcelink_suffix': '.rst'})
+def test_html_sourcelink_suffix_same(app):
+    app.build(force_all=True)
+    assert (app.outdir / '_sources' / 'index.rst').exists()
+
+
+@pytest.mark.sphinx('html', testroot='basic', confoverrides={'html_sourcelink_suffix': ''})
+def test_html_sourcelink_suffix_empty(app):
+    app.build(force_all=True)
+    assert (app.outdir / '_sources' / 'index.rst').exists()
+
+
+@pytest.mark.sphinx('html', testroot='html_entity')
+def test_html_entity(app):
+    app.build(force_all=True)
+    valid_entities = {'amp', 'lt', 'gt', 'quot', 'apos'}
+    content = (app.outdir / 'index.html').read_text(encoding='utf8')
+    for entity in re.findall(r'&([a-z]+);', content, re.MULTILINE):
+        assert entity not in valid_entities
+
+
+@pytest.mark.sphinx('html', testroot='basic')
+def test_html_inventory(app):
+    app.build(force_all=True)
+
+    with app.outdir.joinpath('objects.inv').open('rb') as f:
+        invdata = InventoryFile.load(f, 'https://www.google.com', posixpath.join)
+
+    assert set(invdata.keys()) == {'std:label', 'std:doc'}
+    assert set(invdata['std:label'].keys()) == {'modindex',
+                                                'py-modindex',
+                                                'genindex',
+                                                'search'}
+    assert invdata['std:label']['modindex'] == ('Python',
+                                                '',
+                                                'https://www.google.com/py-modindex.html',
+                                                'Module Index')
+    assert invdata['std:label']['py-modindex'] == ('Python',
+                                                   '',
+                                                   'https://www.google.com/py-modindex.html',
+                                                   'Python Module Index')
+    assert invdata['std:label']['genindex'] == ('Python',
+                                                '',
+                                                'https://www.google.com/genindex.html',
+                                                'Index')
+    assert invdata['std:label']['search'] == ('Python',
+                                              '',
+                                              'https://www.google.com/search.html',
+                                              'Search Page')
+    assert set(invdata['std:doc'].keys()) == {'index'}
+    assert invdata['std:doc']['index'] == ('Python',
+                                           '',
+                                           'https://www.google.com/index.html',
+                                           'The basic Sphinx documentation for testing')
+
+
+@pytest.mark.sphinx('html', testroot='images', confoverrides={'html_sourcelink_suffix': ''})
+def test_html_anchor_for_figure(app):
+    app.build(force_all=True)
+    content = (app.outdir / 'index.html').read_text(encoding='utf8')
+    assert ('<figcaption>\n<p><span class="caption-text">The caption of pic</span>'
+            '<a class="headerlink" href="#id1" title="Link to this image">¶</a></p>\n</figcaption>'
+            in content)
+
+
+@pytest.mark.sphinx('html', testroot='directives-raw')
+def test_html_raw_directive(app, status, warning):
+    app.build(force_all=True)
+    result = (app.outdir / 'index.html').read_text(encoding='utf8')
+
+    # standard case
+    assert 'standalone raw directive (HTML)' in result
+    assert 'standalone raw directive (LaTeX)' not in result
+
+    # with substitution
+    assert '<p>HTML: abc def ghi</p>' in result
+    assert '<p>LaTeX: abc  ghi</p>' in result
+
+
+@pytest.mark.parametrize("expect", [
+    (".//link[@href='_static/persistent.css']"
+     "[@rel='stylesheet']", '', True),
+    (".//link[@href='_static/default.css']"
+     "[@rel='stylesheet']"
+     "[@title='Default']", '', True),
+    (".//link[@href='_static/alternate1.css']"
+     "[@rel='alternate stylesheet']"
+     "[@title='Alternate']", '', True),
+    (".//link[@href='_static/alternate2.css']"
+     "[@rel='alternate stylesheet']", '', True),
+    (".//link[@href='_static/more_persistent.css']"
+     "[@rel='stylesheet']", '', True),
+    (".//link[@href='_static/more_default.css']"
+     "[@rel='stylesheet']"
+     "[@title='Default']", '', True),
+    (".//link[@href='_static/more_alternate1.css']"
+     "[@rel='alternate stylesheet']"
+     "[@title='Alternate']", '', True),
+    (".//link[@href='_static/more_alternate2.css']"
+     "[@rel='alternate stylesheet']", '', True),
+])
+@pytest.mark.sphinx('html', testroot='stylesheets')
+def test_alternate_stylesheets(app, cached_etree_parse, expect):
+    app.build()
+    check_xpath(cached_etree_parse(app.outdir / 'index.html'), 'index.html', *expect)
+
+
+@pytest.mark.sphinx('html', testroot='html_style')
+def test_html_style(app, status, warning):
+    app.build()
+    result = (app.outdir / 'index.html').read_text(encoding='utf8')
+    assert '<link rel="stylesheet" type="text/css" href="_static/default.css" />' in result
+    assert ('<link rel="stylesheet" type="text/css" href="_static/alabaster.css" />'
+            not in result)
+
+
+@pytest.mark.sphinx('html', testroot='basic')
+def test_html_sidebar(app, status, warning):
+    ctx = {}
+
+    # default for alabaster
+    app.build(force_all=True)
+    result = (app.outdir / 'index.html').read_text(encoding='utf8')
+    assert ('<div class="sphinxsidebar" role="navigation" '
+            'aria-label="main navigation">' in result)
+    assert '<h1 class="logo"><a href="#">Python</a></h1>' in result
+    assert '<h3>Navigation</h3>' in result
+    assert '<h3>Related Topics</h3>' in result
+    assert '<h3 id="searchlabel">Quick search</h3>' in result
+
+    app.builder.add_sidebars('index', ctx)
+    assert ctx['sidebars'] == ['about.html', 'navigation.html', 'relations.html',
+                               'searchbox.html', 'donate.html']
+
+    # only relations.html
+    app.config.html_sidebars = {'**': ['relations.html']}
+    app.build(force_all=True)
+    result = (app.outdir / 'index.html').read_text(encoding='utf8')
+    assert ('<div class="sphinxsidebar" role="navigation" '
+            'aria-label="main navigation">' in result)
+    assert '<h1 class="logo"><a href="#">Python</a></h1>' not in result
+    assert '<h3>Navigation</h3>' not in result
+    assert '<h3>Related Topics</h3>' in result
+    assert '<h3 id="searchlabel">Quick search</h3>' not in result
+
+    app.builder.add_sidebars('index', ctx)
+    assert ctx['sidebars'] == ['relations.html']
+
+    # no sidebars
+    app.config.html_sidebars = {'**': []}
+    app.build(force_all=True)
+    result = (app.outdir / 'index.html').read_text(encoding='utf8')
+    assert ('<div class="sphinxsidebar" role="navigation" '
+            'aria-label="main navigation">' not in result)
+    assert '<h1 class="logo"><a href="#">Python</a></h1>' not in result
+    assert '<h3>Navigation</h3>' not in result
+    assert '<h3>Related Topics</h3>' not in result
+    assert '<h3 id="searchlabel">Quick search</h3>' not in result
+
+    app.builder.add_sidebars('index', ctx)
+    assert ctx['sidebars'] == []
+
+
+@pytest.mark.parametrize(("fname", "expect"), [
+    ('index.html', (".//h1/em/a[@href='https://example.com/cp.1']", '', True)),
+    ('index.html', (".//em/a[@href='https://example.com/man.1']", '', True)),
+    ('index.html', (".//em/a[@href='https://example.com/ls.1']", '', True)),
+    ('index.html', (".//em/a[@href='https://example.com/sphinx.']", '', True)),
+])
+@pytest.mark.sphinx('html', testroot='manpage_url', confoverrides={
+    'manpages_url': 'https://example.com/{page}.{section}'})
+@pytest.mark.test_params(shared_result='test_build_html_manpage_url')
+def test_html_manpage(app, cached_etree_parse, fname, expect):
+    app.build()
+    check_xpath(cached_etree_parse(app.outdir / fname), fname, *expect)
+
+
+@pytest.mark.sphinx('html', testroot='toctree-glob',
+                    confoverrides={'html_baseurl': 'https://example.com/'})
+def test_html_baseurl(app, status, warning):
+    app.build()
+
+    result = (app.outdir / 'index.html').read_text(encoding='utf8')
+    assert '<link rel="canonical" href="https://example.com/index.html" />' in result
+
+    result = (app.outdir / 'qux' / 'index.html').read_text(encoding='utf8')
+    assert '<link rel="canonical" href="https://example.com/qux/index.html" />' in result
+
+
+@pytest.mark.sphinx('html', testroot='toctree-glob',
+                    confoverrides={'html_baseurl': 'https://example.com/subdir',
+                                   'html_file_suffix': '.htm'})
+def test_html_baseurl_and_html_file_suffix(app, status, warning):
+    app.build()
+
+    result = (app.outdir / 'index.htm').read_text(encoding='utf8')
+    assert '<link rel="canonical" href="https://example.com/subdir/index.htm" />' in result
+
+    result = (app.outdir / 'qux' / 'index.htm').read_text(encoding='utf8')
+    assert '<link rel="canonical" href="https://example.com/subdir/qux/index.htm" />' in result
+
+
+@pytest.mark.sphinx(testroot='basic', srcdir='validate_html_extra_path')
+def test_validate_html_extra_path(app):
+    (app.confdir / '_static').mkdir(parents=True, exist_ok=True)
+    app.config.html_extra_path = [
+        '/path/to/not_found',       # not found
+        '_static',
+        app.outdir,                 # outdir
+        app.outdir / '_static',     # inside outdir
+    ]
+    with pytest.warns(RemovedInSphinx80Warning, match='Use "pathlib.Path" or "os.fspath" instead'):
+        validate_html_extra_path(app, app.config)
+    assert app.config.html_extra_path == ['_static']
+
+
+@pytest.mark.sphinx(testroot='basic', srcdir='validate_html_static_path')
+def test_validate_html_static_path(app):
+    (app.confdir / '_static').mkdir(parents=True, exist_ok=True)
+    app.config.html_static_path = [
+        '/path/to/not_found',       # not found
+        '_static',
+        app.outdir,                 # outdir
+        app.outdir / '_static',     # inside outdir
+    ]
+    with pytest.warns(RemovedInSphinx80Warning, match='Use "pathlib.Path" or "os.fspath" instead'):
+        validate_html_static_path(app, app.config)
+    assert app.config.html_static_path == ['_static']
+
+
+@pytest.mark.sphinx('html', testroot='basic',
+                    confoverrides={'html_permalinks': False})
+def test_html_permalink_disable(app):
+    app.build()
+    content = (app.outdir / 'index.html').read_text(encoding='utf8')
+
+    assert '<h1>The basic Sphinx documentation for testing</h1>' in content
+
+
+@pytest.mark.sphinx('html', testroot='basic',
+                    confoverrides={'html_permalinks_icon': '<span>[PERMALINK]</span>'})
+def test_html_permalink_icon(app):
+    app.build()
+    content = (app.outdir / 'index.html').read_text(encoding='utf8')
+
+    assert ('<h1>The basic Sphinx documentation for testing<a class="headerlink" '
+            'href="#the-basic-sphinx-documentation-for-testing" '
+            'title="Link to this heading"><span>[PERMALINK]</span></a></h1>' in content)
+
+
+@pytest.mark.sphinx('html', testroot='html_signaturereturn_icon')
+def test_html_signaturereturn_icon(app):
+    app.build()
+    content = (app.outdir / 'index.html').read_text(encoding='utf8')
+
+    assert ('<span class="sig-return-icon">&#x2192;</span>' in content)
+
+
+@pytest.mark.sphinx('html', testroot='root', srcdir=os.urandom(4).hex())
+def test_html_remove_sources_before_write_gh_issue_10786(app, warning):
+    # see:  https://github.com/sphinx-doc/sphinx/issues/10786
+    target = app.srcdir / 'img.png'
+
+    def handler(app):
+        assert target.exists()
+        target.unlink()
+        return []
+
+    app.connect('html-collect-pages', handler)
+    assert target.exists()
+    app.build()
+    assert not target.exists()
+
+    ws = strip_colors(warning.getvalue()).splitlines()
+    assert len(ws) >= 1
+
+    file = os.fsdecode(target)
+    assert f'WARNING: cannot copy image file {file!r}: {file!s} does not exist' == ws[-1]