public void TestArg()
{
string templates =
"foo(a,) ::= << >>\n";
writeFile(tmpdir, "t.stg", templates);
TemplateGroupFile group;
ITemplateErrorListener errors = new ErrorBuffer();
group = new TemplateGroupFile(Path.Combine(tmpdir, "t.stg"));
group.Listener = errors;
group.Load(); // force load
string expected = "t.stg 1:6: missing ID at ')'" + newline;
string result = errors.ToString();
Assert.AreEqual(expected, result);
}