public void BasicEvaluation()
{
Tokenizer tokenizer = new Tokenizer(s_errorHandler, true);
List<Token> tokens = tokenizer.process(File.OpenText("code9.txt"));
Parser parser = new Parser(tokens, s_errorHandler);
parser.process();
AST root = parser.getAST();
AST expressionTree = root.getChild(0).getChild(0);
ExpressionEvaluator e1 = new ExpressionEvaluator(expressionTree);
Assert.AreEqual(26, e1.getValue());
}
List<Token> Tokenize(TextReader stream)
{
Tokenizer tokenizer = new Tokenizer(m_compileTimeErrorHandler, true);
return tokenizer.process(stream);
}
public void UnrecognizedChar()
{
TextReader reader = File.OpenText("code17.txt");
ErrorHandler errorHandler = new ErrorHandler();
Tokenizer tokenizer = new Tokenizer(errorHandler, true);
tokenizer.process(File.OpenText("code17.txt"));
List<Error> errors = errorHandler.getErrors();
Assert.AreEqual(3, errors.Count);
}
public void HandleNegativeNumbers()
{
Tokenizer tokenizer = new Tokenizer(s_errorHandler, true);
List<Token> tokens = tokenizer.process(File.OpenText("code10.txt"));
Parser parser = new Parser(tokens, s_errorHandler);
parser.process();
AST root = parser.getAST();
AST expressionTree = root.getChild(0).getChild(0);
ExpressionEvaluator e = new ExpressionEvaluator(expressionTree);
Assert.AreEqual(-5, e.getValue());
}
public void TooManyTokensInStatements()
{
ErrorHandler errorHandler = new ErrorHandler();
Tokenizer tokenizer = new Tokenizer(errorHandler, true);
List<Token> tokens = tokenizer.process(File.OpenText("code18.txt"));
Parser parser = new Parser(tokens, errorHandler);
parser.process();
errorHandler.printErrorsToConsole();
Assert.AreEqual(3, errorHandler.getErrors().Count);
}