If a view example's description contains no path elements, then do no…

…t attempt to load a helper based on the example description.

lib/rspec/rails/example/view_example_group.rb

@@ -14,7 +14,7 @@ module ViewExampleGroup
       module ClassMethods
         def _default_helper
           base = metadata[:description].split('/')[0..-2].join('/')
-          (base.camelize + 'Helper').constantize if base
+          (base.camelize + 'Helper').constantize unless base.to_s.empty?
         rescue NameError
           nil
         end

spec/rspec/rails/example/view_example_group_spec.rb

@@ -34,6 +34,15 @@ module ::Namespaced; module ThingsHelper; end; end
         }.not_to raise_error
       end
 
+      it 'operates normally when the view has no path and there is a Helper class defined' do
+        class ::Helper; end
+        expect {
+          RSpec::Core::ExampleGroup.describe 'show.html.erb' do
+            include ViewExampleGroup
+          end
+        }.not_to raise_error
+      end
+
       context 'application helper exists' do
         before do
           if !Object.const_defined? 'ApplicationHelper'