test262/test/built-ins/Object/defineProperties/15.2.3.7-6-a-185.js

35 lines
1020 B
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.7-6-a-185
description: >
Object.defineProperties - TypeError is thrown if 'O' is an Array,
'P' is an array index named property,[[Writable]] attribute of the
length property in 'O' is false, value of 'P' is bigger than value
of the length property in 'O' (15.4.5.1 step 4.b)
includes: [runTestCase.js]
---*/
function testcase() {
var arr = [1, 2, 3];
Object.defineProperty(arr, "length", {
writable: false
});
try {
Object.defineProperties(arr, {
"4": {
value: "abc"
}
});
return false;
} catch (e) {
return e instanceof TypeError && arr[0] === 1 && arr[1] === 2 &&
arr[2] === 3 && !arr.hasOwnProperty("3") && !arr.hasOwnProperty("4");
}
}
runTestCase(testcase);