public void checkJParse(String filename) throws Exception {
URL testFolderURL = TestParser.class.getClassLoader().getResource(SAMPLES_DIR);
String testFolder = testFolderURL.getPath();
String J_pathToFile = testFolder + "/" + filename;
ANTLRInputStream input = new ANTLRFileStream(J_pathToFile);
JLexer l = new JLexer(input);
TokenStream tokens = new CommonTokenStream(l);
JParser parser = new JParser(tokens);
parser.removeErrorListeners();
int[] errors = {0};
parser.addErrorListener(
new BaseErrorListener() {
@Override
public void syntaxError(
Recognizer<?, ?> recognizer,
Object offendingSymbol,
int line,
int charPositionInLine,
String msg,
RecognitionException e) {
errors[0]++;
}
});
ParserRuleContext tree = parser.file();
assertTrue(tree != null);
assertEquals(Token.EOF, tree.getStop().getType());
assertEquals(0, errors[0]);
}
