Demo of RR/MiniTest integration

How it works

• Re-open MiniTest::Unit::TestCase and include RR::Adapters::MiniTest.
• This includes RR::Adapters::RRMethods c.f. Mocha::API
• And does an alias_method_chain style manoeuvre on MiniTest::Unit::TestCase#setup and MiniTest::Unit::TestCase#teardown in order to add calls to RR.reset and RR.verify.
• There is no warning in the documentation that if you define your own #setup or #teardown methods then you should make sure you call #super otherwise RR will not work correctly.