process_deinition_test_case.rb

#All the REST POST calls may resturn a 422..
test_pdef = Ruote.process_definition :name => 'test' do
  cursor do
    sequence do
      participant :alpha #a user intervention that is like a confirmation
      participant :beta # no user intervation required. in my case just a REST call(POST)
      rewind :if => '${422_etc_in_previous_step}'
      participant :gamma # no user intervation required. based on return of :beta pass arguments to :gamma 
    end
  end  
end