Add reviewed and unreviewed scopes to Reviewable model concern (#31988)

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

@@ -6,6 +6,31 @@ RSpec.shared_examples 'Reviewable' do
   let(:reviewed_at) { nil }
   let(:requested_review_at) { nil }
 
+  describe 'Scopes' do
+    let!(:reviewed_record) { Fabricate factory_name, reviewed_at: 10.days.ago }
+    let!(:un_reviewed_record) { Fabricate factory_name, reviewed_at: nil }
+
+    describe '.reviewed' do
+      it 'returns reviewed records' do
+        expect(described_class.reviewed)
+          .to include(reviewed_record)
+          .and not_include(un_reviewed_record)
+      end
+    end
+
+    describe '.unreviewed' do
+      it 'returns non reviewed records' do
+        expect(described_class.unreviewed)
+          .to include(un_reviewed_record)
+          .and not_include(reviewed_record)
+      end
+    end
+
+    def factory_name
+      described_class.name.underscore.to_sym
+    end
+  end
+
   describe '#requires_review?' do
     it { is_expected.to be_requires_review }