Someone reported this recently:
<div><br></div><div><a href="https://bugzilla.redhat.com/show_bug.cgi?id=541372">https://bugzilla.redhat.com/show_bug.cgi?id=541372</a></div><div><br></div><div>I tried to see if I could reproduce it on F-12, which I'm now running, but in fact ghc-HUnit isn't available at all for F-12. I've no idea why, or what to do about this.</div>