created new feature test to check that only users with the right permission are able to see the new autosave-hide feature

spec/features/external_user_statistics_spec.rb

@@ -0,0 +1,45 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe 'ExternalUserStatistics', js: true do
+  let(:learner) { create(:external_user) }
+  let(:exercise) { create(:dummy, user: user) }
+  let(:study_group) { create(:study_group) }
+  let(:password) { 'password123456' }
+
+  before do
+    2.times { create(:submission, cause: 'autosave', user: learner, exercise: exercise, study_group: study_group) }
+    2.times { create(:submission, cause: 'run', user: learner, exercise: exercise, study_group: study_group) }
+    create(:submission, cause: 'assess', user: learner, exercise: exercise, study_group: study_group)
+    create(:submission, cause: 'submit', user: learner, exercise: exercise, study_group: study_group)
+
+    study_group.external_users << learner
+    study_group.internal_users << user
+    study_group.save
+
+    visit(sign_in_path)
+    fill_in('email', with: user.email)
+    fill_in('password', with: password)
+    click_button(I18n.t('sessions.new.link'))
+    allow_any_instance_of(LtiHelper).to receive(:lti_outcome_service?).and_return(true)
+    visit(statistics_external_user_exercise_path(id: exercise.id, external_user_id: learner.id))
+  end
+
+  context 'when a admin accesses the page' do
+    let(:user) { create(:admin, password: password) }
+
+    it 'does display the option to enable autosaves' do
+      expect(page).to have_content(I18n.t('exercises.external_users.statistics.toggle_status_on')).or have_content(I18n.t('exercises.external_users.statistics.toggle_status_off'))
+    end
+  end
+
+  context 'when a teacher accesses the page' do
+    let(:user) { create(:teacher, password: password) }
+
+    it 'does not display the option to enable autosaves' do
+      expect(page).not_to have_content(I18n.t('exercises.external_users.statistics.toggle_status_on'))
+      expect(page).not_to have_content(I18n.t('exercises.external_users.statistics.toggle_status_off'))
+    end
+  end
+end