Your bug report

#30106: Loading file /sources/emacs/lisp/emacs-lisp/ert.elc failed to provide feature `mod-test'

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 30106@debbugs.gnu.org.

-- 
30106: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=30106
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