# File karel/test_robots.rb, line 151
  def test_threads
    @karel = StairSweeper.new(1, 1, Robota::EAST, 0)
    Robota::World.read_world("../worlds/beepers.txt")
    Robota::World.set_up_thread(@karel){@karel.turn_left; @karel.move}
#    STDIN.gets
    Robota::World.start_threads
    puts @karel.to_s
  end