require "cases/helper" class WhiteListTest < ActiveModel::TestCase def setup @white_list = ActiveModel::MassAssignmentSecurity::WhiteList.new @included_key = 'first_name' @white_list += [ @included_key ] end test "deny? is false for included items" do assert_equal false, @white_list.deny?(@included_key) end test "deny? is true for non-included items" do assert_equal true, @white_list.deny?('admin') end end