# File test/test_params.rb, line 649
    def test_invalid_messenger_threads
      @server_params.load(@properties)
      assert_equal(1, @params_call)
      assert_equal(4, @server_params.messenger_threads)
      assert_exception(RuntimeError) {
        @server_params.messenger_threads = 0
      }
      assert_exception(RuntimeError) {
        @server_params.messenger_threads = -1
      }
      assert_equal(4, @server_params.messenger_threads)
    end