redefine-length-frozen-dictionarymode-array.js

Enable keyboard shortcuts

/*

 * Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/licenses/publicdomain/

 * Contributor:

 *   Jeff Walden <jwalden+code@mit.edu>

*/

//-----------------------------------------------------------------------------

var BUGNUMBER = 880591;

var summary =

  "Assertion redefining length property of a frozen dictionary-mode array";

print(BUGNUMBER + ": " + summary);

/**************

 * BEGIN TEST *

 **************/

function convertToDictionaryMode(arr)

  Object.defineProperty(arr, 0, { configurable: true });

  Object.defineProperty(arr, 1, { configurable: true });

  delete arr[0];

var arr = [];

convertToDictionaryMode(arr);

Object.freeze(arr);

Object.defineProperty(arr, "length", {});

/******************************************************************************/

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");