# encoding: utf-8 require 'spec_helper' describe Relation, '#header' do subject { object.header } let(:header) { Relation::Header.new([ [ :id, Integer ] ]) } let(:object) { described_class.new(header, [].each) } before do object.should be_instance_of(described_class) end it_should_behave_like 'an idempotent method' it { should equal(header) } end