add back test in yaml file

.travis.yml

@@ -66,7 +66,7 @@ script:
   - cd -; cd Theano
   - theano-nose -v $PART
   - if [[ $DOC == "1" ]]; then python doc/scripts/docgen.py --nopdf --check; fi
-#  - if [[ $DOC == "1" ]]; then python doc/scripts/docgen.py --test --check; fi
+  - if [[ $DOC == "1" ]]; then python doc/scripts/docgen.py --test --check; fi
 
 after_failure:
   - cat /home/travis/.pip/pip.log