Idea Summary
When we can create, modify, delete DB objects right from APEX builder, why go to another tool for unit testing? (Currently we use utplsql3 plugin for SQL Developer). Having unit testing framework too embedded into APEX builder will make APEX one stop solution for application building (it already is!). Even better if unit tests can be run in the background as a scheduler job and report results in case of failures via email/notification in APEX builder.