require 'spec_helper'

describe 'traversal' do
  context 'when first step' do
    before(:all){
      @controller = Base::StepOneController.new
    }

    describe 'current_step methods' do
      describe '#current_step' do
        it 'should be "Step 1"' do
          get :show

          expect(subject.current_step.label).to eq 'Step 1'
        end
      end

      describe '#current_step_index' do
        it 'should be 0' do
          get :show

          expect(subject.current_step_index).to eq 0
        end
      end

      describe '#current_step_name' do
        it 'should be :step_one' do
          get :show

          expect(subject.current_step_name).to eq :step_one
        end
      end
    end

    describe 'previous_step methods' do

      describe '#previous_step' do
        it 'should be nil' do
          get :show

          expect(subject.previous_step).to be_nil
        end
      end

      describe '#previous_step_index' do
        it 'should be nil' do
          get :show

          expect(subject.previous_step_index).to be_nil
        end
      end

      describe '#previous_step_name' do
        it 'should be nil' do
          get :show

          expect(subject.previous_step_name).to be_nil
        end
      end
    end

    describe 'next_step methods' do
      describe '#next_step' do
        it 'should "Step 2"' do
          get :show

          expect(subject.next_step.label).to eq 'Step 2'
        end
      end

      describe '#next_step_index' do
        it 'should be 1' do
          get :show

          expect(subject.next_step_index).to eq 1
        end
      end

      describe '#next_step_name' do
        it 'should be :step_two' do
          get :show

          expect(subject.next_step_name).to eq :step_two
        end
      end
    end
  end

  context 'when middle step' do
    before(:all){
      @controller = Base::StepTwoController.new
    }

    describe 'current_step methods' do
      describe '#current_step' do
        it 'should be "Step 2"' do
          get :show

          expect(subject.current_step.label).to eq 'Step 2'
        end
      end

      describe '#current_step_index' do
        it 'should be 1' do
          get :show

          expect(subject.current_step_index).to eq 1
        end
      end

      describe '#current_step_name' do
        it 'should be :step_one' do
          get :show

          expect(subject.current_step_name).to eq :step_two
        end
      end
    end

    describe 'previous_step methods' do
      describe '#previous_step' do
        it 'should be "Step 1"' do
          get :show

          expect(subject.previous_step.label).to eq 'Step 1'
        end
      end

      describe '#previous_step_index' do
        it 'should be 0' do
          get :show

          expect(subject.previous_step_index).to eq 0
        end
      end

      describe '#previous_step_name' do
        it 'should be :step_one' do
          get :show

          expect(subject.previous_step_name).to eq :step_one
        end
      end
    end

    describe 'next_step methods' do
      describe 'next_step' do
        it 'should "Step 3"' do
          get :show

          expect(subject.next_step.label).to eq 'Step 3'
        end
      end

      describe 'next_step_index' do
        it 'should be 2' do
          get :show

          expect(subject.next_step_index).to eq 2
        end
      end

      describe '#next_step_name' do
        it 'should be :step_three' do
          get :show

          expect(subject.next_step_name).to eq :step_three
        end
      end
    end
  end

  context 'when last step' do
    before(:all){
      @controller = Base::StepThreeController.new
    }

    describe 'current_step methods' do
      describe 'current_step' do
        it 'should be "Step 3"' do
          get :show

          expect(subject.current_step.label).to eq 'Step 3'
        end
      end

      describe '#current_step_index' do
        it 'should be 2' do
          get :show

          expect(subject.current_step_index).to eq 2
        end
      end

      describe '#current_step_name' do
        it 'should be :step_three' do
          get :show

          expect(subject.current_step_name).to eq :step_three
        end
      end
    end

    describe 'previous_step methods' do
      describe 'previous_step' do
        it 'should be "Step 2"' do
          get :show

          expect(subject.previous_step.label).to eq 'Step 2'
        end
      end

      describe '#previous_step_index' do
        it 'should be 1' do
          get :show

          expect(subject.previous_step_index).to eq 1
        end
      end

      describe '#previous_step_name' do
        it 'should be :step_two' do
          get :show

          expect(subject.previous_step_name).to eq :step_two
        end
      end
    end

    describe 'next_step methods' do
      describe 'next_step' do
        it 'should be nil' do
          get :show

          expect(subject.next_step).to be_nil
        end
      end

      describe 'next_step_index' do
        it 'should be nil' do
          get :show

          expect(subject.next_step_index).to be_nil
        end
      end

      describe '#next_step_name' do
        it 'should be nil' do
          get :show

          expect(subject.next_step_name).to be_nil
        end
      end
    end
  end
end