Sphinx test error

error

________________________________________________________________________________________________ test_tocdepth_singlehtml[index.html-expect14] ________________________________________________________________________________________________

app = <sphinx.testing.util.SphinxTestAppWrapperForSkipBuilding object at 0x7f51ea4776d8>, cached_etree_parse = <function cached_etree_parse.<locals>.parse at 0x7f51ec7671e0>, fname = 'index.html', expect = ('.//h4', '2.1.1. Baz A', True)

    @pytest.mark.parametrize("fname,expect", flat_dict({
        'index.html': [
            (".//li[@class='toctree-l3']/a", '1.1.1. Foo A1', True),
            (".//li[@class='toctree-l3']/a", '1.2.1. Foo B1', True),
            (".//li[@class='toctree-l3']/a", '2.1.1. Bar A1', False),
            (".//li[@class='toctree-l3']/a", '2.2.1. Bar B1', False),

            # index.rst
            (".//h1", 'test-tocdepth', True),

            # foo.rst
            (".//h2", '1. Foo', True),
            (".//h3", '1.1. Foo A', True),
            (".//h4", '1.1.1. Foo A1', True),
            (".//h3", '1.2. Foo B', True),
            (".//h4", '1.2.1. Foo B1', True),

            # bar.rst
            (".//h2", '2. Bar', True),
            (".//h3", '2.1. Bar A', True),
            (".//h3", '2.2. Bar B', True),
            (".//h4", '2.2.1. Bar B1', True),

            # baz.rst
            (".//h4", '2.1.1. Baz A', True),
        ],
    }))
    @pytest.mark.skipif(docutils.__version_info__ < (0, 13),
                        reason='docutils-0.13 or above is required')
    @pytest.mark.sphinx('singlehtml', testroot='tocdepth')
    @pytest.mark.test_params(shared_result='test_build_html_tocdepth')
    def test_tocdepth_singlehtml(app, cached_etree_parse, fname, expect):
        app.build()
>       check_xpath(cached_etree_parse(app.outdir / fname), fname, *expect)

tests/test_build_html.py:561:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

etree = <Element 'html' at 0x7f51eb07aa48>, fname = 'index.html', path = './/h4', check = '2.1.1. Baz A', be_found = True

    def check_xpath(etree, fname, path, check, be_found=True):
        nodes = list(etree.findall(path))
        if check is None:
            assert nodes == [], ('found any nodes matching xpath '
                                 '%r in file %s' % (path, fname))
            return
        else:
            assert nodes != [], ('did not find any node matching xpath '
                                 '%r in file %s' % (path, fname))
        if hasattr(check, '__call__'):
            check(nodes)
        elif not check:
            # only check for node presence
            pass
        else:
            def get_text(node):
                if node.text is not None:
                    return node.text
                else:
                    # Since pygments-2.1.1, empty <span> tag is inserted at top of
                    # highlighting block
                    if len(node) == 1 and node[0].tag == 'span' and node[0].text is None:
                        if node[0].tail is not None:
                            return node[0].tail
                    return ''

            rex = re.compile(check)
            if be_found:
                if any(rex.search(get_text(node)) for node in nodes):
                    return
            else:
                if all(not rex.search(get_text(node)) for node in nodes):
                    return

>           assert False, ('%r not found in any node matching '
                           'path %s in %s: %r' % (check, path, fname,
                                                  [node.text for node in nodes]))
E           AssertionError: '2.1.1. Baz A' not found in any node matching path .//h4 in index.html: [None, None, None, None]
E           assert False

tests/test_build_html.py:117: AssertionError
---------------------------------------------------------------------------------------------------------- Captured stdout teardown -----------------------------------------------------------------------------------------------------------
# testroot: root
# builder: singlehtml
# srcdir: /tmp/pytest-of-ycr/pytest-12/test_build_html_tocdepth
# outdir: /tmp/pytest-of-ycr/pytest-12/test_build_html_tocdepth/_build/singlehtml
# status:
Running Sphinx v2.2.0+/c3545922e
loading pickled environment... done
s that are out of date
building [html]: targets for 4 source files that are out of date
updating environment: 4 added, 0 changed, 0 removed
reading sources... [100%] index
looking for now-outdated files... none found
pickling environment... done
checking consistency... done
preparing documents... done
writing output... [100%] index
generating indices...  genindexdone
writing additional pages...  searchdone
copying static files... ... done
copying extra files... done
dumping search index in English (code: en)... done
dumping object inventory... done
build succeeded.

The HTML pages are in ../../../../../../tmp/pytest-of-ycr/pytest-12/test_build_html_tocdepth/_build/html.