Provide primitive test coverage of the ticket pdf

spec/pdfs/ticket_pdf_spec.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe TicketPdf do
+  let(:registration_ticket) { create(:registration_ticket, price_cents: 0) }
+  let(:conference) do
+    create(
+      :conference,
+      title:               'ExampleCon',
+      tickets:             [registration_ticket],
+      registration_period: create(:registration_period, start_date: 3.days.ago)
+    )
+  end
+  let(:participant) { create(:user) }
+  let(:ticket_purchase) do
+    create(
+      :ticket_purchase,
+      user:       participant,
+      conference: conference,
+      ticket:     registration_ticket,
+      quantity:   1
+    )
+  end
+  let(:physical_ticket) do
+    create(:physical_ticket, ticket_purchase: ticket_purchase)
+  end
+  let(:layout) { conference.ticket_layout.to_sym }
+  let(:file_name) { "ticket_for_#{conference.short_title}.pdf" }
+
+  it 'generates a PDF for a physical ticket' do
+    pdf = described_class.new(conference, participant, physical_ticket, layout, file_name)
+    page_analysis = PDF::Inspector::Page.analyze(pdf.render)
+    expect(page_analysis.pages.length).to eq(1)
+    expect(page_analysis.pages.first[:strings]).to include(conference.title)
+  end
+end