The tests subpackage should contain the tests in cdt tarball in compiled form with a launcher to run them against system installed cdt (via rpm) and summary or the results. eclipse-tests from eclipse.srpm should be a good thing to look at for model.
This bug appears to have been reported against 'rawhide' during the Fedora 20 development cycle. Changing version to '20'. More information and reason for this action is here: https://fedoraproject.org/wiki/BugZappers/HouseKeeping/Fedora20
This has been committed (http://pkgs.fedoraproject.org/cgit/eclipse-cdt.git/commit/?id=61ead7994921e8d9b7bbfad98a3f46a19ad59d6a) for rawhide, f20 and f19.