Improve back to top link validation and tests

alphagov · Mar 4, 2025 · b764c07 · b764c07
1 parent c16cbf8
commit b764c07
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/app/views/govuk_publishing_components/components/_back_to_top.html.erb b/app/views/govuk_publishing_components/components/_back_to_top.html.erb
@@ -1,6 +1,12 @@
 <%
   add_gem_component_stylesheet("back-to-top")
+
   text ||= t('content_item.contents', default: "Contents")
+
+  if href.blank? || text.blank?
+    raise ArgumentError, "The back_to_top component requires text and a href"
+  end
+
   component_helper = GovukPublishingComponents::Presenters::ComponentWrapperHelper.new(local_assigns)
   component_helper.add_class("govuk-link gem-c-back-to-top govuk-!-display-none-print")
 %>