JSTests/test262/test/built-ins/Object/defineProperty/15.2.3.6-4-188.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.2.3.6-4-188
description: >
    Object.defineProperty - 'O' is an Array, 'name' is an array index
    named property, test TypeError is thrown if the [[Writable]]
    attribute of the length property in 'O' is false and value of
    'name' equals to value of the length property (15.4.5.1 step 4.b)
---*/

var arrObj = [1, 2, 3];

Object.defineProperty(arrObj, "length", {
  writable: false
});
assert.throws(TypeError, function() {
  Object.defineProperty(arrObj, 3, {
    value: "abc"
  });
});