module ShutupHelper
  def shutup
    if ENV.key?("VERBOSE_TESTS")
      yield
    else
      begin
        tmperr = $stderr.clone
        tmpout = $stdout.clone
        $stderr.reopen "/dev/null", "w"
        $stdout.reopen "/dev/null", "w"
        yield
      ensure
        $stderr.reopen tmperr
        $stdout.reopen tmpout
      end
    end
  end
end