# File test/test_restart.rb, line 64
    def test_cancel
      begin
        th = Thread.new{
          @restart_signal.wait
        }
        @restart_signal.cancel
        @restart_signal.notify_restart
      ensure
        th.join
      end
      assert_equal(0, @restart_call)
      assert_equal(0, @close_call)
    end