require 'spec_helper' describe User do describe "validations" do describe "invitation_code" do it "only accepts valid invitation codes" do User::INVITATION_CODES.each do |v| is_expected.to allow_value(v).for(:invitation_code) end end it "can reject invalid invitation codes" do %w['foo', 'bar'].each do |v| is_expected.not_to allow_value(v).for(:invitation_code) end end end end end