Contents

namespace :spec do

  def mutant_supported?
    return false unless RUBY_VERSION.start_with?("1.9")

    begin
      return false unless RUBY_ENGINE == "ruby" || RUBY_ENGINE == "rbx"
    rescue NameError
      return false
    end

    true
  end

  desc "Runs tests with code mutation"
  task :mutate, [:focus_on] do |t, args|
    next unless mutant_supported?

    require "cli_forge"
    require "mutant"

    # You can focus on a particular symbol/method by passing it to the task:
    # rake spec:mutate[AutoloadConvention#const_missing], for example.
    if args.focus_on
      matcher = Mutant::Matcher.from_string("::CLIForge::#{args.focus_on}")
    else
      matcher = Mutant::Matcher::ObjectSpace.new(/\ACLIForge(::|#|\.).+\Z/)
    end

    # Mutant doesn't have a public scripting API yet; so we're cheating.
    config = {}
    def config.method_missing(sym)
      self[sym]
    end

    config.merge!(
      :strategy => Mutant::Strategy::Rspec::DM2.new(config),
      :killer   => Mutant::Killer::Rspec,
      :matcher  => matcher,
      :filter   => Mutant::Mutation::Filter::ALL,
      :reporter => Mutant::Reporter::CLI.new(config)
    )

    ENV["MUTATION"] = "yes"
    if Mutant::Runner.run(config).fail?
      exit 1
    end
  end

end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
cli-forge-0.0.0	tasks/spec/mutate.rake