Thu, 22 Jan 2015 13:21:57 +0100
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
1 /* Test that arrays resize normally during splice, even if .length is non-writable. */
3 var arr = [1, 2, 3, 4, 5, 6];
5 Object.defineProperty(arr, "length", {writable: false});
7 try
8 {
9 var removed = arr.splice(3, 3, 9, 9, 9, 9);
10 throw new Error("splice didn't throw, returned [" + removed + "]");
11 }
12 catch (e)
13 {
14 assertEq(e instanceof TypeError, true,
15 "should have thrown a TypeError, instead threw " + e + ", arr is " + arr);
16 }
18 // The exception should happen in step 16, which means we've already removed the array elements.
19 assertEq(arr[0], 1);
20 assertEq(arr[1], 2);
21 assertEq(arr[2], 3);
22 assertEq(arr[3], 9);
23 assertEq(arr[4], 9);
24 assertEq(arr[5], 9);
25 assertEq(arr.length, 6);