test262/test/built-ins/Object/defineProperties/15.2.3.7-6-a-145.js

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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-145
description: >
Object.defineProperties - 'O' is an Array, 'name' is the length
property of 'O', test the [[Value]] field of 'desc' is an Object
which has an own toString and valueOf method (15.4.5.1 step 3.c)
includes: [runTestCase.js]
---*/
function testcase() {
var arr = [];
var toStringAccessed = false;
var valueOfAccessed = false;
Object.defineProperties(arr, {
length: {
value: {
toString: function () {
toStringAccessed = true;
return '2';
},
valueOf: function () {
valueOfAccessed = true;
return 3;
}
}
}
});
return arr.length === 3 && !toStringAccessed && valueOfAccessed;
}
runTestCase(testcase);