@Test
public void functionTest3() {

  String ruleCode = "set col: speed value: -1.0";
  RuleVisitorParser parser = new RuleVisitorParser();
  Set setRule = (Set) parser.parse(ruleCode);
  ExprEval exprEval = ((Expr)setRule.getValue()).eval(null);
  System.out.println(exprEval.toString());
  //assertEquals("3600", exprEval.asString().substring(0,4));
}