Using
$ sage --version
SageMath version 8.8.beta4, Release Date: 2019-05-04
"sage -t" tests the doctests with the following tags:
Using --optional=4ti2,bliss,build,cbc,ccache,cmake,cryptominisat,dochtml,dot2tex,e_antic,glucose,latte_int,lidia,lrslib,memlimit,mpir,ninja_build,normaliz,notedown,pandoc_attributes,pycosat,pynormaliz,python2,qhull,rst2ipynb,sage,topcom
but "sage -t --optional=sage,optional" test fewer tags:
Using
--optional=4ti2,bliss,cbc,ccache,cmake,cryptominisat,dot2tex,e_antic,glucose,latte_int,lidia,lrslib,memlimit,mpir,ninja_build,normaliz,notedown,pandoc_attributes,pycosat,pynormaliz,python2,qhull,rst2ipynb,sage,topcom
I was expecting the tag list to be the same. The missing ones are build and dochtml.
Sébastien