Contents

# encoding: utf-8

require 'spec_helper'

describe Optimizer::Function::Predicate::LessThan::Contradiction, '#optimizable?' do
  subject { object.optimizable? }

  let(:attribute) { Attribute::Integer.new(:id)    }
  let(:predicate) { left.lt(right)                 }
  let(:object)    { described_class.new(predicate) }

  before do
    predicate.should be_kind_of(Function::Predicate::LessThan)
  end

  context 'when left and right are equal' do
    let(:left)  { attribute }
    let(:right) { attribute }

    it { should be(true) }
  end

  context 'when left and right are different types' do
    let(:left)  { attribute                    }
    let(:right) { Attribute::String.new(:name) }

    it { should be(true) }
  end

  context 'when left is always greater than right' do
    let(:left)  { Attribute::Integer.new(:id, :size => 10..20) }
    let(:right) { Attribute::Integer.new(:id, :size => 1..9)   }

    it { should be(true) }
  end

  context 'when left is equivalent to the right' do
    let(:left)  { Attribute::Integer.new(:id) }
    let(:right) { Attribute::Integer.new(:id) }

    it { should be(false) }
  end
end

Version data entries

5 entries across 5 versions & 2 rubygems

Version	Path
axiom-optimizer-0.1.0	spec/unit/axiom/optimizer/function/predicate/less_than/contradiction/optimizable_predicate_spec.rb
veritas-optimizer-0.0.7	spec/unit/veritas/optimizer/function/predicate/less_than/contradiction/optimizable_spec.rb
veritas-optimizer-0.0.6	spec/unit/veritas/optimizer/function/predicate/less_than/contradiction/optimizable_spec.rb
veritas-optimizer-0.0.5	spec/unit/veritas/optimizer/function/predicate/less_than/contradiction/optimizable_spec.rb
veritas-optimizer-0.0.4	spec/unit/veritas/optimizer/function/predicate/less_than/contradiction/optimizable_spec.rb