js/src/tests/ecma_5/Array/redefine-nonwritable-length-nonnumeric.js

Fri, 16 Jan 2015 04:50:19 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Fri, 16 Jan 2015 04:50:19 +0100
branch
TOR_BUG_9701
changeset 13
44a2da4a2ab2
permissions
-rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

michael@0 1 /*
michael@0 2 * Any copyright is dedicated to the Public Domain.
michael@0 3 * http://creativecommons.org/licenses/publicdomain/
michael@0 4 * Contributor:
michael@0 5 * Jeff Walden <jwalden+code@mit.edu>
michael@0 6 */
michael@0 7
michael@0 8 //-----------------------------------------------------------------------------
michael@0 9 var BUGNUMBER = 866700;
michael@0 10 var summary = "Assertion redefining non-writable length to a non-numeric value";
michael@0 11
michael@0 12 print(BUGNUMBER + ": " + summary);
michael@0 13
michael@0 14 /**************
michael@0 15 * BEGIN TEST *
michael@0 16 **************/
michael@0 17
michael@0 18 var arr = [];
michael@0 19 Object.defineProperty(arr, "length", { value: 0, writable: false });
michael@0 20
michael@0 21 // Per Array's magical behavior, the value in the descriptor gets canonicalized
michael@0 22 // *before* SameValue comparisons occur, so this shouldn't throw.
michael@0 23 Object.defineProperty(arr, "length", { value: '' });
michael@0 24
michael@0 25 assertEq(arr.length, 0);
michael@0 26
michael@0 27 /******************************************************************************/
michael@0 28
michael@0 29 if (typeof reportCompare === "function")
michael@0 30 reportCompare(true, true);
michael@0 31
michael@0 32 print("Tests complete");

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