test262/test/built-ins/Object/defineProperties/15.2.3.7-6-a-112.js

33 lines
904 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-112
description: >
Object.defineProperties - 'O' is an Array, test the length
property of 'O' is own data property (15.4.5.1 step 1)
includes: [runTestCase.js]
---*/
function testcase() {
var arr = [0, 1];
Object.defineProperty(arr, "1", {
value: 1,
configurable: false
});
try {
Object.defineProperties(arr, {
length: { value: 1 }
});
return false;
} catch (ex) {
var desc = Object.getOwnPropertyDescriptor(arr, "length");
return ex instanceof TypeError && desc.value === 2 &&
desc.writable && !desc.enumerable && !desc.configurable;
}
}
runTestCase(testcase);