Template for a Controller spec

controller_spec.rb

# spec/controllers/contacts_controller_spec.rb
require 'spec_helper'

describe MyController do
  describe "#action" do
    context "access restriction" do
      it "requires authentication" do
        # expect(repsonse).to redirect_to(login_path)
      end
      it 'requires authorization' do
        # expect(controller).to have_received(:deny_access)
      end
    end
    
    context "with access granted" do
      before(:each) do
        # ensure access is granted
        # sign_in create(:user)
        # can! :action, resource
      end
      
      context "assigns" do
        it 'resource' do
          # resource = create(:resource)
          # get :show, id: resource.id
          # expect(assigns(:resource)).to eq(resource)
          
          # [decent_exposure]
          # expect(controller.resource).to eq(resource)
        end
      end
      
      context 'parameters' do
        # strong_parameters
        # NOT TESTED: http://robots.thoughtbot.com/shoulda-matchers-2-6-0
        it { is_expected.to permit(:email).for(:create) } 
      end
      
      context 'renders' do
        # this helper makes all views get really rendered, checking for view errors
        render_views
        it ':edit' do
          resource = create(:resource)
          get :edit, id: resource.id
          expect(response).to render_template(:edit)
        end
      end
      
      # processing: actions: [:create, :update, :destroy]
      context 'on a successful scenario' do
        it "creates the resource" do
          # expect do
          #   put :create, valid_attrs
          # end.to change(Model, :count).by(1)
        end
        
        it 'responds with JSON data' do
          put :create, valid_attrs
          data = JSON.parse(response.body)
          expect(data['status']).to eq('success')
        end
      end
      
      context 'failures scenario' do
        it "does not create the resource" do
          # expect do
          #   put :create, invalid_attrs
          # end.not_to change(Model, :count)
        end
        
        it 'responds with JSON data' do
          put :create, valid_attrs
          data = JSON.parse(response.body)
          expect(data['status']).to eq('failure')
        end
      end
    end
  end
end