public void ParseIdentifierList()
{
lexer.CharStream = new ANTLRStringStream("ID1,ID2");
tokens.TokenSource = lexer;
parser = new PascalParser(tokens);
var actual = new[] { "ID1", "ID2" };
var res = parser.identifierList();
CollectionAssert.AreEqual(res.Select(x => x.Text), actual);
}