demarches-normaliennes/spec/controllers/france_connect_controller_spec.rb

require 'spec_helper'

describe FranceConnectController, type: :controller do

  describe '.login' do
    it 'redirect to france connect serveur' do
      get :login
      expect(response.status).to eq(302)
    end
  end

  describe '.callback' do
    context 'when param code is missing' do
      it 'redirect to login page' do
        get :callback
        expect(response).to redirect_to(new_user_session_path)
      end
    end
    context 'when params code is present' do
      let(:code) { 'plop' }
      let(:email) { 'patator@cake.com' }
      let(:siret) { '41123069100049' }
      let(:user_info) { Hashie::Mash.new(email: email, siret: siret) }
      context 'when code is correct' do
        let(:email) { 'patator@cake.com' }
        let(:current_user) { User.find_by_email(email) }

        before do
          allow(FranceConnectService).to receive(:retrieve_user_informations).and_return(user_info)
          get :callback, code: code
        end

        it 'current user have attribut loged_in_with_france_connect at true' do
          expect(current_user.loged_in_with_france_connect).to be_truthy
        end
        let(:stored_location) { '/plip/plop' }
        it 'redirect to stored location' do
          subject.store_location_for(:user, stored_location)
          get :callback, code: code
          expect(response).to redirect_to(stored_location)
        end
      end

      context 'when code is not correct' do
        before do
          allow(FranceConnectService).to receive(:retrieve_user_informations) { raise Rack::OAuth2::Client::Error.new(500, error: 'Unknown') }
          get :callback, code: code
        end

        it 'redirect to login page' do
          expect(response).to redirect_to(new_user_session_path)
        end

        it 'display error message' do
          expect(flash[:alert]).to be_present
        end
      end
    end
  end
end