# encoding: utf-8 require 'spec_helper' describe Algebra::Rename, '#aliases' do subject { object.aliases } let(:relation) { Relation.new([ [ :id, Integer ] ], [ [ 1 ] ]) } let(:aliases) { described_class::Aliases.new(relation[:id] => relation[:id].rename(:other_id)) } let(:object) { described_class.new(relation, aliases) } it { should equal(aliases) } end