array-inherited-__proto__.js

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/*

 * Any copyright is dedicated to the Public Domain.

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

*/

var gTestfile = 'array-inherited-__proto__.js';

var BUGNUMBER = 769041;

var summary =

  "The [[Prototype]] of an object whose prototype chain contains an array " +

  "isn't that array's [[Prototype]]";

print(BUGNUMBER + ": " + summary);

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

 * BEGIN TEST *

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

var arr = [];

assertEq(Array.isArray(arr), true);

var objWithArrPrototype = Object.create(arr);

assertEq(!Array.isArray(objWithArrPrototype), true);

assertEq(objWithArrPrototype.__proto__, arr);

var objWithArrGrandPrototype = Object.create(objWithArrPrototype);

assertEq(!Array.isArray(objWithArrGrandPrototype), true);

assertEq(objWithArrGrandPrototype.__proto__, objWithArrPrototype);

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

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");