private void runEvaluation(String expect, String expression) throws Exception
{
AbstractTCLNode fstNode = TCLParser.parse(expect);
AbstractTCLNode sndNode = TCLParser.parse(expression);
EvaluationContext _context = new EvaluationContext(getEvaluator());
EvaluationResult pre_res = fstNode.evaluate(_context);
EvaluationResult pst_res = sndNode.evaluate(_context);
assertEquals("expected " + fstNode.toStringTree() + " == " + sndNode.toStringTree(),