@Test
public void testParseAndPrintNestedLoop() throws Exception {

  final String program = ""
      + "void main()\n"
      + "{\n"
      + " for(int i = 0; i < 10; i ++)\n"
      + "  {\n"
      + "   for(int i = 0; i < 10; i ++)\n"
      + "    {\n"
      + "     int a;\n"
      + "     int b;\n"
      + "    }\n"
      + "  }\n"
      + "}\n";
  assertEquals(program, PrettyPrinterVisitor.prettyPrintAsString(ParseHelper.parse(program
  )));
}