resolve markdown filters

spec/lib/gitlab/markdown/filter/external_issue_reference_filter_spec.rb

@@ -73,5 +73,13 @@ describe Gitlab::Markdown::ExternalIssueReferenceFilter, lib: true do
 
       expect(link).to eq helper.url_for_issue("#{reference}", project, only_path: true)
     end
+
+    it 'adds to the results hash' do
+      ext = JiraIssue.new(reference, project)
+
+      result = reference_pipeline_result("Issue #{reference}")
+      expect(result[:references][:external_issue]).not_to be_empty
+      expect(result[:references][:external_issue]).to eq [ext]
+    end
   end
 end