Do test with docutils-0.12

.travis.yml

@@ -13,13 +13,14 @@ matrix:
   include:
     - python: '3.5'
       env:
-        - TOXENV=du13
+        - TOXENV=du12
     - python: '3.6'
       env:
-        - TOXENV=py36
-        - PYTEST_ADDOPTS="--cov ./ --cov-append --cov-config setup.cfg"
+        - TOXENV=du13
     - python: '3.7'
-      env: TOXENV=py37
+      env:
+        - TOXENV=py37
+        - PYTEST_ADDOPTS="--cov ./ --cov-append --cov-config setup.cfg"
     - python: 'nightly'
       env: TOXENV=py38
     - python: '3.6'

tests/test_build_epub.py

@@ -15,6 +15,8 @@ from xml.etree import ElementTree
 
 import pytest
 
+from sphinx.util import docutils
+
 
 # check given command is runnable
 def runnable(command):
@@ -351,6 +353,8 @@ def test_epub_css_files(app):
             'href="https://example.com/custom.css" />' not in content)
 
 
+@pytest.mark.skipif(docutils.__version_info__ < (0, 13),
+                    reason='docutils-0.13 or above is required')
 @pytest.mark.sphinx('epub', testroot='roles-download')
 def test_html_download_role(app, status, warning):
     app.build()

tests/test_build_html5.py

@@ -20,6 +20,7 @@ import pytest
 from html5lib import HTMLParser
 from test_build_html import flat_dict, tail_check, check_xpath
 
+from sphinx.util import docutils
 from sphinx.util.docutils import is_html5_writer_available
 
 
@@ -319,6 +320,8 @@ def test_html5_output(app, cached_etree_parse, fname, expect):
     check_xpath(cached_etree_parse(app.outdir / fname), fname, *expect)
 
 
+@pytest.mark.skipif(docutils.__version_info__ < (0, 13),
+                    reason='docutils-0.13 or above is required')
 @pytest.mark.sphinx('html', tags=['testtag'], confoverrides={
     'html_context.hckey_co': 'hcval_co',
     'html_experimental_html5_writer': True})
@@ -345,6 +348,8 @@ def test_html_download(app):
     assert matched.group(1) == filename
 
 
+@pytest.mark.skipif(docutils.__version_info__ < (0, 13),
+                    reason='docutils-0.13 or above is required')
 @pytest.mark.sphinx('html', testroot='roles-download',
                     confoverrides={'html_experimental_html5_writer': True})
 def test_html_download_role(app, status, warning):