require 'test_helper_rails' class RailsTest < ActionDispatch::IntegrationTest include ::DummyRailsIntegration def test_visit_root visit root_path # ^ will raise on JS errors assert_equal 200, page.status_code screenshot! end def test_autoprefixer get ActionController::Base.helpers.stylesheet_path('application.css') assert_match(/-webkit-(?:transition|transform)/, response.body) end def test_precompile Dummy::Application.load_tasks Rake::Task['assets:precompile'].invoke end end