Add ability to email announcements to all users (#33928)

spec/system/admin/announcements/previews_spec.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'Admin Announcements Mail Previews' do
+  let(:announcement) { Fabricate(:announcement, notification_sent_at: nil) }
+
+  before { sign_in(admin_user) }
+
+  describe 'Viewing Announcements Mail previews' do
+    it 'shows the Announcement Mail preview page' do
+      visit admin_announcement_preview_path(announcement)
+
+      expect(page)
+        .to have_title(I18n.t('admin.announcements.preview.title'))
+    end
+  end
+end