@laanwj This is part of a longer-run effort towards being able to deprecate the java comparison tool, without losing test coverage.
I've ported a handful more tests from the java test to p2p-fullblocktest.py. I intend to continue to port more tests over (unless someone can please beat me to it!) but it'll be at least a few weeks before I return to working on this, so I thought I'd share what I have now.