Merge pull request #2030 from corsonknowles/finish_branch_coverage_for_described_class

Finish branch coverage for `RSpec/DescribedClass`

Author: bquorning

spec/rubocop/cop/rspec/described_class_spec.rb

@@ -338,6 +338,14 @@ module SomeGem
         RUBY
       end
     end
+
+    it 'ignores parenthesized namespaces - begin_types' do
+      expect_no_offenses(<<~RUBY)
+        describe MyClass do
+          subject { (MyNamespace)::MyClass }
+        end
+      RUBY
+    end
   end
 
   context 'when EnforcedStyle is :explicit' do