refactored ConferencesController#calendar: separated calendar event creation into an specific service

spec/services/conference/calendar/event_builder_spec.rb

@@ -0,0 +1,64 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Conference::Calendar::EventBuilder, type: :serializer do
+  describe '.call' do
+    let(:conference_url) { 'www.sample.com' }
+    let!(:calendar) { Icalendar::Calendar.new }
+    let(:conference) { create :full_conference }
+    
+    context 'when is a full calendar' do
+      let(:proposals_calendar) { double(:proposals_calendar) }
+
+      setup do
+        allow_any_instance_of(ConferenceHelper)
+          .to receive(:icalendar_proposals)
+          .and_return(proposals_calendar)
+      end
+    
+      it 'returns icalendar_proposals' do
+        result = described_class.call(
+          conference: conference, 
+          calendar: calendar, 
+          is_full_calendar: true, 
+          conference_url: conference_url
+        )
+
+        expect(result).to eq(proposals_calendar)
+      end
+    end
+
+    context 'when is a not full calendar' do
+      let(:venue) { conference.venue }
+      setup do
+        venue.update(latitude: '-100', longitude:'-200')
+      end
+      
+      it 'set callendar params' do
+        calendar = Icalendar::Calendar.new
+        described_class.call(
+          conference: conference, 
+          calendar: calendar, 
+          is_full_calendar: false, 
+          conference_url: conference_url
+        )
+        event = calendar.events.first
+      
+        expect(event.location).to eq("#{venue.street}, #{venue.postalcode} #{venue.city}, #{venue.country_name}")
+        expect(event.dtstart).to eq(conference.start_date)
+        expect(event.dtstart.ical_params).to eq({ 'VALUE'=>'DATE' })
+        expect(event.dtend).to eq(conference.end_date)
+        expect(event.dtend.ical_params).to eq({ 'VALUE'=>'DATE' })
+        expect(event.duration.present?).to eq(true)
+        expect(event.created).to eq(conference.created_at)
+        expect(event.last_modified).to eq(conference.updated_at)
+        expect(event.summary).to eq(conference.title)
+        expect(event.description).to eq(conference.description)
+        expect(event.uid).to eq(conference.guid)
+        expect(event.url.value_ical).to eq(conference_url)
+        expect(event.geo).to eq([conference.venue.latitude.to_f, conference.venue.longitude.to_f])
+      end 
+    end
+  end
+end