require 'spec_helper' module EndState describe Action do subject(:action) { Action.new(object, state) } let(:object) { OpenStruct.new(state: nil) } let(:state) { :a } describe '#call' do it 'changes the state to the new state' do action.call expect(object.state).to eq :a end end describe '#rollback' do it 'changes the state to the new state' do action.rollback expect(object.state).to eq :a end end end end