| /* Test that arrays resize normally during splice, even if .length is non-writable. */ |
| |
| var arr = [1, 2, 3, 4, 5, 6]; |
| |
| Object.defineProperty(arr, "length", {writable: false}); |
| |
| try |
| { |
| var removed = arr.splice(3, 3, 9, 9, 9, 9); |
| throw new Error("splice didn't throw, returned [" + removed + "]"); |
| } |
| catch (e) |
| { |
| assertEq(e instanceof TypeError, true, |
| "should have thrown a TypeError, instead threw " + e + ", arr is " + arr); |
| } |
| |
| // The exception should happen in step 16, which means we've already removed the array elements. |
| assertEq(arr[0], 1); |
| assertEq(arr[1], 2); |
| assertEq(arr[2], 3); |
| assertEq(arr[3], 9); |
| assertEq(arr[4], 9); |
| assertEq(arr[5], 9); |
| assertEq(arr.length, 6); |