sclass TestFindEndOfBlockFunction {
  swappable int functionToTest(LS tok, int i) { throw unimplemented(); }
  int n = 20, repetitions = 1000;
  
  LS tok;
  
  run {
    repeat repetitions {
      tok = javaTok(repF(n, -> tossCoin() ? "{" : "}"));
      print(join(tok));
      int i = random(l(tok)) | 1;
      assertEqualsVerbose("i=" + i, tok_findEndOfBlock(tok, i), functionToTest(tok, i));
    }
    print("OK after " + nRepetitions(repetitions));
  }
}