Initial commit

spec/models/release_number_spec.rb

@@ -0,0 +1,54 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe ReleaseNumber, type: :model do
+  let(:project) { create(:project) }
+
+  describe 'value' do
+    it 'returns a number corresponding to the order in which the release was signed within the project' do
+      later = create(:appearance_release, signed_at: 1.days.ago, project: project)
+      earlier = create(:appearance_release, signed_at: 2.day.ago, project: project)
+
+      expect(release_number_for(earlier)).to eq 1
+      expect(release_number_for(later)).to eq 2
+    end
+
+    it 'does not count other release types' do
+      appearance = create(:appearance_release, project: project)
+      talent = create(:talent_release, project: project)
+
+      expect(release_number_for(appearance)).to eq 1
+      expect(release_number_for(talent)).to eq 1
+    end
+
+    it 'returns 1 if there are no saved releases' do
+      appearance = build(:appearance_release, project: project)
+      expect(release_number_for(appearance)).to eq 1
+    end
+
+    it 'does not count releases from other projects' do
+      my_appearance = create(:appearance_release, project: project)
+      their_appearance = create(:appearance_release, project: build(:project))
+
+      expect(release_number_for(my_appearance)).to eq 1
+      expect(release_number_for(their_appearance)).to eq 1
+    end
+
+    it 'uses creation timestamp when signed timestamp is not present' do
+      third = create(:appearance_release, signed_at: 1.day.ago, created_at: Time.zone.now, project: project)
+      second = create(:appearance_release, signed_at: nil, created_at: 2.days.ago, project: project)
+      first = create(:appearance_release, signed_at: 3.days.ago, created_at: Time.zone.now, project: project)
+
+      expect(release_number_for(first)).to eq 1
+      expect(release_number_for(second)).to eq 2
+      expect(release_number_for(third)).to eq 3
+    end
+  end
+
+  private
+
+  def release_number_for(release)
+    ReleaseNumber.new(release).value
+  end
+end