require 'spec_helper' describe 'Veritas::Relation::Empty#each' do subject { empty.each { |tuple| yields << tuple } } let(:empty) { Relation::Empty.new([ [ :id, Integer ] ]) } let(:yields) { [] } it { should equal(empty) } it 'does not yield any tuples' do expect { subject }.to_not change { yields.dup } end end