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