I found this question searching for a PL/SQL unit test framework. I've found an article where PLUTO's developer argues for it:
... there are a few products that help PL/SQL programmers test their code. Quest Software has a product called Code Tester for Oracle; however, the free version is cripple-ware and the for-pay version just adds one more obstacle for you to have to get by in convincing your organization to start testing. There is also a utPLSQL project that was abandoned a few years ago and it is starting to suffer from bit rot.
