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Contents

# encoding: utf-8

require 'spec_helper'

describe Optimizer::Algebra::Extension::SortedOperand, '#optimizable?' do
  subject { object.optimizable? }

  let(:base)     { Relation.new([[:id, Integer]], LazyEnumerable.new) }
  let(:relation) { operand.extend {}                                  }
  let(:object)   { described_class.new(relation)                      }

  context 'when operand is sorted' do
    let(:operand) { base.sort_by { |r| r.id } }

    it { should be(true) }
  end

  context 'when operand is not sorted' do
    let(:operand) { base }

    it { should be(false) }
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version Path
axiom-optimizer-0.2.0 spec/unit/axiom/optimizer/algebra/extension/sorted_operand/optimizable_predicate_spec.rb