public void TestCalculator() { var testString = @"a=1+2*3; print a;"; CalculatorLexer lexer = new CalculatorLexer(new AntlrInputStream(testString)); CommonTokenStream tokens = new CommonTokenStream(lexer); CalculatorParser p = new CalculatorParser(tokens); p.BuildParseTree = true; p.AddParseListener(new CalculatorListener()); ParserRuleContext t = p.program(); }