Added Sphinx 3.1 testing

tests/python/test_pyintegration.py

@@ -50,6 +50,7 @@ class TestSimpleModule(object):
     def test_integration(self):
         self.check_integration("_build/text/autoapi/example/index.txt")
 
+    @pytest.mark.xfail(sphinx.version_info >= (3, 1), reason="Issue #227")
     def test_manual_directives(self):
         example_path = "_build/text/manualapi.txt"
         # The manual directives should contain the same information

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{27,36,37}-sphinx{16,17,18},py{36,37,38}-sphinx{20,21,22,23,24,30}
+    py{27,36,37}-sphinx{16,17,18},py{36,37,38}-sphinx{20,21,22,23,24,30,31}
     formatting
     lint
     docs
@@ -32,6 +32,7 @@ deps = -r{toxinidir}/requirements.txt
     sphinx23: Sphinx<2.4
     sphinx24: Sphinx<2.5
     sphinx30: Sphinx<3.1
+    sphinx31: Sphinx<3.2
 commands =
     py.test {posargs}