https://bugzilla.redhat.com/show_bug.cgi?id=1258160
--- Comment #10 from Tom Hughes tom@compton.nu --- The test failure is because we have formatio 1.1.2 not 1.1.1 and that includes https://github.com/busterjs/formatio/commit/116d0ace0103b21436e448091bb0fad9... which makes the "(empty string)" appear. So I think we can ignore that.
The only other problem is that you need to fixdep lolex as we only have 1.3.1 and this ias asking for 1.3.2 so it won't install.