Promoting issue to epic

ee/app/views/groups/epics/_epic.html.haml

@@ -3,7 +3,7 @@
     .issuable-info-container
       .issuable-main-info
         .issue-title.title
-          %span.issue-title-text
+          %span.issue-title-text.qa-epic-title-text
             = link_to epic.title, epic_path(epic)
         .issuable-info
           %span.issuable-reference

qa/qa/ee/page/group/epic/index.rb

@@ -12,6 +12,10 @@ module QA
               element :create_epic_button
             end
 
+            view 'ee/app/views/groups/epics/_epic.html.haml' do
+              element :epic_title_text
+            end
+
             def click_new_epic
               click_element :new_epic_button
             end
@@ -23,6 +27,10 @@ module QA
             def create_new_epic
               click_element :create_epic_button
             end
+
+            def click_first_epic
+              all_elements(:epic_title_text).first.click
+            end
           end
         end
       end

qa/qa/specs/features/browser_ui/2_plan/ee_epic/promote_issue_to_epic_spec.rb

+# frozen_string_literal: true
+
+module QA
+  context 'Plan', :smoke do
+    describe 'promote issue to epic' do
+      let(:issue_title) { "My Awesome Issue #{SecureRandom.hex(8)}" }
+
+      it 'user promotes issue to an epic' do
+        Runtime::Browser.visit(:gitlab, Page::Main::Login)
+        Page::Main::Login.act { sign_in_using_credentials }
+
+        group = Resource::Group.fabricate!
+
+        project = Resource::Project.fabricate! do |project|
+          project.name = 'promote-issue-to-epic'
+          project.description = 'Project to promote issue to epic'
+          project.group = group
+        end
+
+        Resource::Issue.fabricate! do |issue|
+          issue.title = issue_title
+          issue.project = project
+        end
+
+        Page::Project::Issue::Show.perform do |show|
+          show.select_all_activities_filter
+          show.comment('/promote')
+
+          expect(show).to have_content("promoted to epic")
+        end
+
+        group.visit!
+        QA::EE::Page::Group::Menu.perform(&:go_to_group_epics)
+        QA::EE::Page::Group::Epic::Index.perform(&:click_first_epic)
+
+        expect(page).to have_content(issue_title)
+        expect(page).to have_content(/promoted from issue .* \(closed\)/)
+      end
+    end
+  end
+end