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Contents

# encoding: utf-8

require 'spec_helper'

describe Optimizer::Relation::Operation::Binary::SortedLeft, '#optimizable?' do
  subject { object.optimizable? }

  let(:relation) { double('Relation', left: left, right: right) }
  let(:right)    { double('Right')                              }
  let(:object)   { described_class.new(relation)                }

  context 'when left is sorted' do
    let(:left) { Relation.new([[:id, Integer]], LazyEnumerable.new).sort_by { |r| r.id } }

    it { should be(true) }
  end

  context 'when left is not sorted' do
    let(:left) { Relation.new([[:id, Integer]], LazyEnumerable.new) }

    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/relation/operation/binary/sorted_left/optimizable_predicate_spec.rb