free_mutant/lib/mutant/killer.rb

# encoding: utf-8

module Mutant
  # Mutation killer
  class Killer
    include Adamantium::Flat
    include Anima.new(:test, :mutation)

    # Report object for kill results
    class Report
      include Anima.new(
        :killer,
        :test_report
      )

      # Test if kill was successful
      #
      # @return [Boolean]
      #
      # @api private
      #
      def success?
        killer.mutation.should_fail?.equal?(test_report.failed?)
      end

    end # Report

    # Return test report
    #
    # @return [Test::Report]
    #
    # @api private
    #
    def run
      test_report = Mutant.isolate do
        mutation.insert
        test.run
      end

      Report.new(
        killer:      self,
        test_report: test_report.update(test: test)
      )
    end

  private

    # Return subject
    #
    # @return [Subject]
    #
    # @api private
    #
    def subject
      mutation.subject
    end

  end # Killer
end # Mutant