Test docs build

.travis.yml

@@ -12,6 +12,8 @@ matrix:
       env: TOXENV=py27-test
     - python: 3.4
       env: TOXENV=py34-test
+    - python: 3.4
+      env: TOXENV=py34-docs
     - python: 3.4
       env: TOXENV=py34-doctest
 

tox.ini

@@ -1,19 +1,33 @@
 [tox]
 envlist =
     {py26,py27,py33,py34}-test,
+    py34-docs
     py34-doctest
 
 [testenv]
 setenv =
     PYTHONPATH = {toxinidir}:{toxinidir}/mockupdb
+commands =
+    python setup.py test
+
+
+[testenv:py34-docs]
+changedir =
+    docs
+commands =
+    sphinx-build -E -T -b html . _build/html
+
+deps =
+    sphinx
+
+[testenv:py34-doctest]
 changedir =
-    doctest: docs
+    docs
 commands =
-    test: python setup.py test
-    doctest: sphinx-build -E -n -b doctest . {envtmpdir}/doctest
+    sphinx-build -E -n -b doctest . {envtmpdir}/doctest
 
 deps =
-    doctest: sphinx
-    doctest: pymongo>=3
+    sphinx
+    pymongo>=3
 
 passenv = DISTUTILS_USE_SDK MSSdk INCLUDE LIB