require 'spec_helper' describe 'Veritas::Optimizer::Relation::Operation::Limit::UnoptimizedOperand#optimizable?' do subject { object.optimizable? } let(:klass) { Optimizer::Relation::Operation::Limit::UnoptimizedOperand } let(:header) { Relation::Header.new([ [ :id, Integer ] ]) } let(:base) { Relation.new(header, [ [ 1 ] ].each).order } let(:relation) { operand.take(1) } let(:object) { klass.new(relation) } before do object.operation.should be_kind_of(Relation::Operation::Limit) end context 'when the operand is optimizable' do let(:operand) { base.project(header) } it { should be(true) } end context 'when the operand is not optimizable' do let(:operand) { base } it { should be(false) } end end