add a test case

Author: bsatarnejad

test/components/primer/open_project/danger_dialog_test.rb

@@ -282,4 +282,24 @@ def test_renders_additional_details
       assert_selector(".DangerDialog-additionalDetails", text: "Additional important information.")
     end
   end
+
+  def test_renders_live_region_for_confirmation_checkbox
+    render_inline(Primer::OpenProject::DangerDialog.new(
+      title: "Danger confirmation action",
+      confirmation_live_message_checked: "Checkbox checked — you can proceed.",
+      confirmation_live_message_unchecked: "Please check the confirmation box to continue."
+    )) do |dialog|
+      dialog.with_confirmation_message do |message|
+        message.with_heading(tag: :h2) { "Danger" }
+      end
+      dialog.with_confirmation_check_box { "I confirm this deletion" }
+    end
+
+    # Check that the live region exists and is sr-only
+    assert_selector("div.sr-only[data-target='danger-dialog-form-helper.liveRegion']")
+
+    live_region = page.find_css("div.sr-only[data-target='danger-dialog-form-helper.liveRegion']").first
+    assert_equal "assertive", live_region.attributes["aria-live"].value
+    assert_equal "true", live_region.attributes["aria-atomic"].value
+  end
 end