Wed, 31 Dec 2014 06:09:35 +0100
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 /* Test that splice causing deletion of a non-configurable property stops at exactly step 12(v) of ES5 15.4.4.12 */
3 var O = [1,2,3,4,5,6];
4 var A = undefined;
5 Object.defineProperty(O, 3, { configurable: false });
7 try
8 {
9 A = O.splice(0, 6);
10 throw new Error("didn't throw, returned " + A);
11 }
12 catch (e)
13 {
14 assertEq(e instanceof TypeError, true,
15 "deleting O[3] should have caused a TypeError");
16 }
18 assertEq(O.length, 6); // setting length not reached
19 assertEq(A, undefined); // return value not reached
21 assertEq(O[5], undefined); // deletion reached
22 assertEq(O[4], undefined); // deletion reached
23 assertEq(O[3], 4); // deletion caused exception
24 assertEq(O[2], 3); // deletion not reached
25 assertEq(O[1], 2); // deletion not reached
26 assertEq(O[0], 1); // deletion not reached