JSTests/test262/test/built-ins/Array/prototype/join/S15.4.4.5_A5_T1.js

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: "[[Get]] from not an inherited property"
esid: sec-array.prototype.join
es5id: 15.4.4.5_A5_T1
description: >
    [[Prototype]] of Array instance is Array.prototype, [[Prototype]
    of Array.prototype is Object.prototype
---*/

//CHECK#1
Array.prototype[1] = 1;
var x = [0];
x.length = 2;
if (x.join() !== "0,1") {
  $ERROR('#1: Array.prototype[1] = 1; x = [0]; x.length = 2; x.join() === "0,1". Actual: ' + (x.join()));
}

//CHECK#2
Object.prototype[1] = 1;
Object.prototype.length = 2;
Object.prototype.join = Array.prototype.join;
x = {0:0};
if (x.join() !== "0,1") {
  $ERROR('#2: Object.prototype[1] = 1; Object.prototype.length = 2; Object.prototype.join = Array.prototype.join; x = {0:0}; x.join() === "0,1". Actual: ' + (x.join()));
}