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());
}
private AST Parse(List<Token> tokens)
{
Parser parser = new Parser(tokens, m_compileTimeErrorHandler);
parser.process();
AST ast = parser.getAST();
return ast;
}
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);
}