Merge branch '370204-fix-broken-master' into 'master'

Fix logic for waiting on CI YAML content

See merge request !94969

spec/features/projects/ci/lint_spec.rb

@@ -16,10 +16,6 @@
 
     visit project_ci_lint_path(project)
     editor_set_value(yaml_content)
-
-    wait_for('YAML content') do
-      find(content_selector).text.present?
-    end
   end
 
   describe 'YAML parsing' do

spec/support/helpers/features/source_editor_spec_helpers.rb

@@ -13,6 +13,10 @@ def editor_set_value(value)
             editor = find('.monaco-editor')
             uri = editor['data-uri']
             execute_script("localMonaco.getModel('#{uri}').setValue('#{escape_javascript(value)}')")
+
+            # We only check that the first line is present because when the content is long,
+            # only a part of the text will be rendered in the DOM due to scrolling
+            page.has_selector?('.gl-source-editor .view-lines', text: value.lines.first)
           end
         end
       end