require 'isolation/abstract_unit' require 'rack/test' module ApplicationTests class MiddlewareStaticTest < ActiveSupport::TestCase include ActiveSupport::Testing::Isolation include Rack::Test::Methods def setup build_app FileUtils.rm_rf "#{app_path}/config/environments" end def teardown teardown_app end # Regression test to #8907 # See https://github.com/rails/rails/commit/9cc82b77196d21a5c7021f6dca59ab9b2b158a45#commitcomment-2416514 test "doesn't set Cache-Control header when it is nil" do app_file "public/foo.html", 'static' require "#{app_path}/config/environment" get 'foo' assert_not last_response.headers.has_key?('Cache-Control'), "Cache-Control should not be set" end end end