TestSuite result = new TestSuite("", file);
// read in test suite
try {
final Reader reader = new BufferedReader(new FileReader(file));
final StGUnitLexer lexer = new StGUnitLexer(new ANTLRReaderStream(reader));
final CommonTokenStream tokens = new CommonTokenStream(lexer);
final StGUnitParser parser = new StGUnitParser(tokens);
final TestSuiteAdapter adapter = new TestSuiteAdapter(result);
parser.adapter = adapter;
parser.gUnitDef();