src/third_party/mozjs-45/js/src/tests/test262/ch12/12.12/S12.12_A1_T1.js

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/**
 * Labelled statements are only used in conjunction with labelled
 * break and continue statements
 *
 * @path ch12/12.12/S12.12_A1_T1.js
 * @description Checking if labelled break works. See continue and break sections
 */

var object = {p1: 1, p2: 1};
var result = 0;
lbl: for(var i in object){
  result += object[i];
  break lbl;
}

if(!(result === 1)){
  $ERROR("'break label' should break execution of labelled iteration statement");
}