Refactor base test class inheritance to allow for BaseTest class to be
reused without needing to also import the TestCase class everywhere in
order to avoid having the common test function executed on base classes.
This makes it easier to build base testing classes and then simplifies
the subclassing of these for actual tests.
Change-Id: I89809e8082469f814f245db4a9ab7658aac8a405
Capture logs to attach them on exceptions to simplify the debugging of
errors in tests when they occur.
Change-Id: I5c1b5c306aba37789a8d41eabf65e0ac628af838
Add documentation on how to generate documentation and run JJB unit tests.
Also added a unit tests for each category of plugins as examples for others
to follow when adding new JJB plugins. I'm hoping this will help contributors
add tests for new plugins going forward.
Change-Id: I2ab90cdb37d0f3b1e947345d4291d2927b04a0c6