require_relative "test_helper" class TestScrubParams < Minitest::Test def test_scrub params = ActionController::Parameters.new({ "name" => "Hello ", "tags" => ["awesome", "hack"], "car" => { "make" => "Tesla" } }) params.scrub! expected = { "name" => "Hello alert('World')", "tags" => ["awesome", "hack"], "car" => { "make" => "Tesla" } } assert_equal expected, params end end