Add index action to steps

app/controllers/api/steps_controller.rb

@@ -6,6 +6,10 @@ module Api
       mutate Steps::Create.run(params, sequence: sequence)
     end
 
+    def index
+      render json: sequence.steps
+    end
+
     def destroy
       if step && step.destroy
         render nothing: true

config/routes.rb

@@ -4,7 +4,7 @@ Dss::Application.routes.draw do
   namespace :api, defaults: {format: :json} do
     resources :devices, only: [:index, :destroy, :create, :update]
     resources :sequences, only: [:create, :destroy] do
-      resources :steps, only: [:create, :update, :destroy]
+      resources :steps, only: [:create, :index, :update, :destroy]
     end
   end
 

spec/controllers/api/steps/destroy_spec.rb

@@ -4,7 +4,7 @@ describe Api::StepsController do
 
   include Devise::TestHelpers
 
-  describe '#create' do
+  describe '#destroy' do
     let(:sequence) { FactoryGirl.create(:sequence) }
     let(:step) { sequence.steps[0] }
     let(:user) { sequence.user }

spec/controllers/api/steps/index_spec.rb

@@ -0,0 +1,18 @@
+require 'spec_helper'
+
+describe Api::StepsController do
+
+  include Devise::TestHelpers
+
+  describe '#index' do
+    let(:sequence) { FactoryGirl.create(:sequence) }
+    let(:user) { sequence.user }
+
+    it 'retrieves all steps for a sequence' do
+      sign_in user
+      get :index, sequence_id: sequence._id.to_s
+      expect(response.status).to eq(200)
+      expect(json[0][:_id]).to eq(sequence.steps[0]._id.to_s)
+    end
+  end
+end

spec/features/helpers.rb

@@ -7,4 +7,8 @@ module Helpers
     fill_in 'user_password', with: user.password
     click_button 'Sign in'
   end
-end
+
+  def json
+    JSON.parse(response.body).map(&:deep_symbolize_keys!)
+  end
+end