js/src/tests/ecma_5/Array/length-truncate-nonconfigurable.js@129ffea94266
js/src/tests/ecma_5/Array/length-truncate-nonconfigurable.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.
1 /*
2 * Any copyright is dedicated to the Public Domain.
3 * http://creativecommons.org/licenses/publicdomain/
4 * Contributor:
5 * Jeff Walden <jwalden+code@mit.edu>
6 */
8 //-----------------------------------------------------------------------------
9 var BUGNUMBER = 858381;
10 var summary =
11 "Array length redefinition behavior with non-configurable elements";
13 print(BUGNUMBER + ": " + summary);
15 /**************
16 * BEGIN TEST *
17 **************/
19 var arr = [0, 1, 2];
20 Object.defineProperty(arr, 1, { configurable: false });
22 try
23 {
24 Object.defineProperty(arr, "length", { value: 0, writable: false });
25 }
26 catch (e)
27 {
28 assertEq(e instanceof TypeError, true,
29 "must throw TypeError when array truncation would have to remove " +
30 "non-configurable elements");
31 }
33 assertEq(arr.length, 2, "length is highest remaining index plus one");
35 var desc = Object.getOwnPropertyDescriptor(arr, "length");
36 assertEq(desc !== undefined, true);
38 assertEq(desc.value, 2);
39 assertEq(desc.writable, false);
40 assertEq(desc.enumerable, false);
41 assertEq(desc.configurable, false);
43 /******************************************************************************/
45 if (typeof reportCompare === "function")
46 reportCompare(true, true);
48 print("Tests complete");
