js/src/tests/ecma_5/extensions/proxy-array-target-length-definition.js

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

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 */
michael@0 5
michael@0 6 var gTestfile = 'proxy-array-target-length-definition.js';
michael@0 7 var BUGNUMBER = 905947;
michael@0 8 var summary =
michael@0 9 "Redefining an array's |length| property when redefining the |length| " +
michael@0 10 "property on a proxy with an array as target";
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 var p = new Proxy(arr, {});
michael@0 20
michael@0 21 // This really should throw a TypeError, but we're buggy just yet, and this
michael@0 22 // silently does nothing.
michael@0 23 Object.defineProperty(p, "length", { value: 17, configurable: true });
michael@0 24
michael@0 25 // Same here.
michael@0 26 Object.defineProperty(p, "length", { value: 42, enumerable: true });
michael@0 27
michael@0 28 // But at least we can check the property went unchanged.
michael@0 29 var pd = Object.getOwnPropertyDescriptor(p, "length");
michael@0 30 assertEq(pd.value, 0);
michael@0 31 assertEq(pd.writable, true);
michael@0 32 assertEq(pd.enumerable, false);
michael@0 33 assertEq(pd.configurable, false);
michael@0 34
michael@0 35 var ad = Object.getOwnPropertyDescriptor(arr, "length");
michael@0 36 assertEq(ad.value, 0);
michael@0 37 assertEq(ad.writable, true);
michael@0 38 assertEq(ad.enumerable, false);
michael@0 39 assertEq(ad.configurable, false);
michael@0 40
michael@0 41 /******************************************************************************/
michael@0 42
michael@0 43 if (typeof reportCompare === "function")
michael@0 44 reportCompare(true, true);
michael@0 45
michael@0 46 print("Tests complete");

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