Add Reviewable model concern (#31152)

spec/models/account_spec.rb

@@ -3,6 +3,8 @@
 require 'rails_helper'
 
 RSpec.describe Account do
+  include_examples 'Reviewable'
+
   context 'with an account record' do
     subject { Fabricate(:account) }
 

spec/models/preview_card_provider_spec.rb

@@ -3,6 +3,8 @@
 require 'rails_helper'
 
 describe PreviewCardProvider do
+  include_examples 'Reviewable'
+
   describe 'scopes' do
     let(:trendable_and_reviewed) { Fabricate(:preview_card_provider, trendable: true, reviewed_at: 5.days.ago) }
     let(:not_trendable_and_not_reviewed) { Fabricate(:preview_card_provider, trendable: false, reviewed_at: nil) }

spec/models/tag_spec.rb

@@ -3,6 +3,8 @@
 require 'rails_helper'
 
 RSpec.describe Tag do
+  include_examples 'Reviewable'
+
   describe 'validations' do
     it 'invalid with #' do
       expect(described_class.new(name: '#hello_world')).to_not be_valid

spec/support/examples/models/concerns/reviewable.rb

@@ -0,0 +1,54 @@
+# frozen_string_literal: true
+
+shared_examples 'Reviewable' do
+  subject { described_class.new(reviewed_at: reviewed_at, requested_review_at: requested_review_at) }
+
+  let(:reviewed_at) { nil }
+  let(:requested_review_at) { nil }
+
+  describe '#requires_review?' do
+    it { is_expected.to be_requires_review }
+
+    context 'when reviewed_at is not null' do
+      let(:reviewed_at) { 5.days.ago }
+
+      it { is_expected.to_not be_requires_review }
+    end
+  end
+
+  describe '#reviewed?' do
+    it { is_expected.to_not be_reviewed }
+
+    context 'when reviewed_at is not null' do
+      let(:reviewed_at) { 5.days.ago }
+
+      it { is_expected.to be_reviewed }
+    end
+  end
+
+  describe '#requested_review?' do
+    it { is_expected.to_not be_requested_review }
+
+    context 'when requested_reviewed_at is not null' do
+      let(:requested_review_at) { 5.days.ago }
+
+      it { is_expected.to be_requested_review }
+    end
+  end
+
+  describe '#requires_review_notification?' do
+    it { is_expected.to be_requires_review_notification }
+
+    context 'when reviewed_at is not null' do
+      let(:reviewed_at) { 5.days.ago }
+
+      it { is_expected.to_not be_requires_review_notification }
+    end
+
+    context 'when requested_reviewed_at is not null' do
+      let(:requested_review_at) { 5.days.ago }
+
+      it { is_expected.to_not be_requires_review_notification }
+    end
+  end
+end