osem-fcy/spec/serializers/event_serializer_spec.rb

require 'spec_helper'
describe EventSerializer, type: :serializer do
  let(:event) { create(:event, title: 'Some Talk', abstract: 'Lorem ipsum dolor sit amet') }
  let(:serializer) { EventSerializer.new(event) }

  context 'event does not have date, speakers, room and tracks assigned' do
    it 'sets guid, title, length, abstract and type' do
      expected_json = {
        event: {
          guid: event.guid,
          title: 'Some Talk',
          length: 30,
          date: '',
          language: nil,
          abstract: '<p>Lorem ipsum dolor sit amet</p>',
          speaker_ids: [],
          type: 'Example Event Type',
          room: nil,
          track: nil
        }
      }.to_json

      expect(serializer.to_json).to eq expected_json
    end
  end

  context 'event has date, speakers, room and tracks assigned' do
    let(:speaker) { create(:speaker) }
    let(:room) { create(:room) }
    let(:track) { create(:track) }

    before do
      event.update_attributes(start_time: Date.new(2014, 03, 04), language: 'English')
      event.event_users << speaker
      event.room = room
      event.track = track
    end

    it 'sets guid, title, length, abstract, type, date, language, speakers, room and track' do
      expected_json = {
        event: {
          guid: event.guid,
          title: 'Some Talk',
          length: 30,
          date: ' 2014-03-04T00:00:00+0000 ',
          language: 'English',
          abstract: '<p>Lorem ipsum dolor sit amet</p>',
          speaker_ids: [speaker.user.id],
          type: 'Example Event Type',
          room: room.guid,
          track: track.guid
        }
      }.to_json

      expect(serializer.to_json).to eq expected_json
    end
  end
end