> > They are traditional, but I think Jon and I would > > like to put a spin on things by perhaps writing >=20 > I'm not quite sure I follow. You mean one test > would run using the code from a second test? No, you'd fit sparse LU into 50 lines (*) and then add 15 lines to solve a PDE (*), and that's a single test. Sebastien Loisel (*) that'll be hard.