tests for sample app, they work again now after 4c69207eab0ada5ceca7a852a36007cc7de76056 which merged 006ba4a03dba3b10b9c59a6534e387697ffed2f8 (and 0471112e6a9b53b133c796944c696b0200efc252 / d9a67a95fb9f949a840fe1707655566e4044e42c). this is good fun. refs #782, #784 and #305