Convert statuses_cleanup controller specs to system specs (#33363)

spec/system/statuses_cleanup_spec.rb

@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'Automated post deletion settings' do
+  let(:user) { Fabricate :user }
+  let(:account) { user.account }
+
+  describe 'Updating settings' do
+    before { sign_in user }
+
+    it 'visits the page and updates the policy' do
+      visit statuses_cleanup_path
+      expect(page)
+        .to have_private_cache_control
+
+      check I18n.t('statuses_cleanup.enabled')
+      submit_form
+      expect(account.reload.statuses_cleanup_policy)
+        .to be_enabled
+
+      uncheck I18n.t('statuses_cleanup.keep_pinned')
+      expect { submit_form }
+        .to change { account.reload.statuses_cleanup_policy.keep_pinned? }.to(false)
+      expect(page)
+        .to have_content(I18n.t('settings.statuses_cleanup'))
+    end
+
+    def submit_form
+      click_on submit_button
+    end
+  end
+end