[QA] Add a new Page::Issuable::Show page

Signed-off-by: Rémy Coutable <remy@rymai.me>

qa/qa.rb

@@ -184,6 +184,10 @@ module QA
       autoload :PersonalAccessTokens, 'qa/page/profile/personal_access_tokens'
     end
+    module Issuable
+      autoload :Show, 'qa/page/issuable/show'
+    end
+
     module MergeRequest
       autoload :New, 'qa/page/merge_request/new'
       autoload :Show, 'qa/page/merge_request/show'

qa/qa/page/issuable/show.rb

+module QA
+  module Page
+    module Issuable
+      class Show < Page::Base
+        view 'app/views/shared/issuable/_sidebar.html.haml' do
+          element :labels_block, ".issuable-show-labels"
+        end
+
+        def has_label?(label)
+          page.within('.issuable-show-labels') do
+            element = find('span', text: label, wait: 1)
+            !element.nil?
+          end
+        end
+      end
+    end
+  end
+end