Merge pull request #1118 from rishabhs95/free-ticket

ability to create and purchase free tickets

spec/models/conference_spec.rb

@@ -1583,4 +1583,15 @@ describe Conference do
       end
     end
   end
+
+  describe 'after_create' do
+    let(:conference) { Conference.new(title: 'ABC', short_title: 'XYZ', start_date: Date.today, end_date: Date.today + 10, timezone: 'GMT') }
+
+    it 'calls back to create free ticket' do
+      conference.save
+      conference.run_callbacks :create
+      free_ticket = conference.tickets.first
+      expect(free_ticket.price_cents).to eq(0)
+    end
+  end
 end

spec/models/ticket_purchase_spec.rb

@@ -41,7 +41,21 @@ describe TicketPurchase do
     let!(:participant) { create(:user) }
     let!(:ticket_1) { create(:ticket) }
     let!(:ticket_2) { create(:ticket) }
-    let!(:conference) { create(:conference, tickets: [ticket_1, ticket_2]) }
+    let!(:free_ticket) { create(:ticket, price_cents: 0) }
+    let!(:conference) { create(:conference, tickets: [ticket_1, ticket_2, free_ticket]) }
+
+    it 'creates purchase to free ticket' do
+      tickets = { free_ticket.id.to_s => '10' }
+      message = TicketPurchase.purchase(conference, participant, tickets)
+      purchase = TicketPurchase.where(conference_id: conference.id,
+                                      user_id: participant.id,
+                                      ticket_id: free_ticket.id).first
+
+      expect(TicketPurchase.count).to eq(1)
+      expect(purchase.quantity).to eq(10)
+      expect(message.blank?).to be true
+
+    end
 
     it 'creates a purchase for one ticket' do
       tickets = { ticket_1.id.to_s => '1' }

spec/models/ticket_spec.rb

@@ -22,14 +22,14 @@ describe Ticket do
       should validate_presence_of(:price_currency)
     end
 
-    it 'is not valid with a price_cents equals zero' do
-      should_not allow_value(0).for(:price_cents)
-    end
-
     it 'is not valid with a price_cents smaller than zero' do
       should_not allow_value(-1).for(:price_cents)
     end
 
+    it 'is valid with a price_cents equals zero' do
+      should allow_value(0).for(:price_cents)
+    end
+
     it 'is valid with a price_cents greater than zero' do
       should allow_value(1).for(:price_cents)
     end