test262/test/built-ins/Object/S9.9_A6.js

32 lines
911 B
JavaScript

// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: |
ToObject conversion from Object: The result is the input
argument (no conversion)
es5id: 9.9_A6
description: Converting from Objects to Object
---*/
function MyObject(val) {
this.value = val;
this.valueOf = function() {
return this.value;
}
}
var x = new MyObject(1);
var y = Object(x);
assert.sameValue(y.valueOf(), x.valueOf(), 'y.valueOf() must return the same value returned by x.valueOf()');
assert.sameValue(typeof y, typeof x, 'The value of `typeof y` is expected to be typeof x');
assert.sameValue(
y.constructor.prototype,
x.constructor.prototype,
'The value of y.constructor.prototype is expected to equal the value of x.constructor.prototype'
);
assert.sameValue(y, x, 'The value of y is expected to equal the value of x');