Regressions: clean up old unit tests some more and add additional exceptions
Regressions: clean up old unit tests some more and add additional exceptions

ATenderholt/cclib,langner/cclib,ATenderholt/cclib,andersx/cclib,berquist/cclib,ghutchis/cclib,Schamnad/cclib,langner/cclib,ben-albrecht/cclib,cclib/cclib,cclib/cclib,Clyde-fare/cclib,andersx/cclib,berquist/cclib,gaursagar/cclib,jchodera/cclib,gaursagar/cclib,langner/cclib,Clyde-fare/cclib,Schamnad/cclib,jchodera/cclib,ghutchis/cclib,berquist/cclib,ben-albrecht/cclib,cclib/cclib