# File test/test_params.rb, line 543
    def test_invalid_messengers
      @server_params.load(self)
      assert_equal(1, @params_call)
      assert_equal(8, @server_params.messengers)
      assert_exception(RuntimeError) {
        @server_params.messengers = 0
      }
      assert_exception(RuntimeError) {
        @server_params.messengers = -1
      }
      assert_equal(8, @server_params.messengers)
    end