|  | // Copyright 2018 the V8 project authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | // Intended to test bug [882233] on CSA fast-path. | 
|  |  | 
|  | let array = []; | 
|  | Object.defineProperty(array, 'length', {writable: false}); | 
|  |  | 
|  | assertEquals(array.length, 0); | 
|  | assertThrows(() => array.shift(), TypeError); | 
|  |  | 
|  | let object = { length: 0 }; | 
|  | Object.defineProperty(object, 'length', {writable: false}); | 
|  |  | 
|  | assertEquals(object.length, 0); | 
|  | assertThrows(() => Array.prototype.shift.call(object)); |