public void TestComputedQuestion(string input, int exprectedErrorCount, string failureMessage)
{
var result = new Result();
var SemanticAnalyzer = new ExposedSemanticAnalyzer(result);
var node = ASTFactory.BuildComputedQuestion(input);
SemanticAnalyzer.AnalyzeAstNode(node);
Assert.AreEqual(exprectedErrorCount, result.Events.Count, failureMessage);
}
