Add test for docutils.conf and prevent 'html4css1.css' missing warning.

Now --embed-stylesheet option default become false.

tests/test_docutilsconf.py

@@ -0,0 +1,101 @@
+# -*- coding: utf-8 -*-
+"""
+    test_docutilsconf
+    ~~~~~~~~~~~~~~~~~
+
+    Test docutils.conf support for several writers.
+
+    :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import os
+import re
+from StringIO import StringIO
+from functools import wraps
+
+from util import test_roots, TestApp
+
+
+html_warnfile = StringIO()
+root = test_roots / 'test-docutilsconf'
+
+
+# need cleanenv to rebuild everytime.
+# docutils.conf change did not effect to rebuild.
+def with_conf_app(docutilsconf='', *args, **kwargs):
+    default_kw = {
+        'srcdir': root,
+        'cleanenv': True,
+    }
+    default_kw.update(kwargs)
+    def generator(func):
+        @wraps(func)
+        def deco(*args2, **kwargs2):
+            app = TestApp(*args, **default_kw)
+            (app.srcdir / 'docutils.conf').write_text(docutilsconf)
+            try:
+                cwd = os.getcwd()
+                os.chdir(app.srcdir)
+                func(app, *args2, **kwargs2)
+            finally:
+                os.chdir(cwd)
+            # don't execute cleanup if test failed
+            app.cleanup()
+        return deco
+    return generator
+
+
+def regex_count(expr, result):
+    return len(re.findall(expr, result))
+
+
+@with_conf_app(buildername='html')
+def test_html_with_default_docutilsconf(app):
+    app.builder.build(['contents'])
+    result = (app.outdir / 'contents.html').text(encoding='utf-8')
+
+    assert regex_count(r'<th class="field-name">', result) == 1
+    assert regex_count(r'<th class="field-name" colspan="2">', result) == 1
+    assert regex_count(r'<td class="option-group">', result) == 1
+    assert regex_count(r'<td class="option-group" colspan="2">', result) == 1
+
+
+@with_conf_app(buildername='html', docutilsconf=(
+    '\n[html4css1 writer]'
+    '\noption-limit:1'
+    '\nfield-name-limit:1'
+    '\n')
+)
+def test_html_with_docutilsconf(app):
+    app.builder.build(['contents'])
+    result = (app.outdir / 'contents.html').text(encoding='utf-8')
+
+    assert regex_count(r'<th class="field-name">', result) == 0
+    assert regex_count(r'<th class="field-name" colspan="2">', result) == 2
+    assert regex_count(r'<td class="option-group">', result) == 0
+    assert regex_count(r'<td class="option-group" colspan="2">', result) == 2
+
+
+@with_conf_app(buildername='html', warning=html_warnfile)
+def test_html(app):
+    app.builder.build(['contents'])
+    assert html_warnfile.getvalue() == ''
+
+
+@with_conf_app(buildername='latex', warning=html_warnfile)
+def test_latex(app):
+    app.builder.build(['contents'])
+    assert html_warnfile.getvalue() == ''
+
+
+@with_conf_app(buildername='man', warning=html_warnfile)
+def test_man(app):
+    app.builder.build(['contents'])
+    assert html_warnfile.getvalue() == ''
+
+
+@with_conf_app(buildername='texinfo', warning=html_warnfile)
+def test_texinfo(app):
+    app.builder.build(['contents'])
+    assert html_warnfile.getvalue() == ''