JSTests/test262/test/built-ins/Array/prototype/reverse/S15.4.4.8_A4_T2.js

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

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

Array.prototype[1] = -1;
var x = [0, 1];
x.length = 2;
x.reverse();

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

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

x.length = 0;

//CHECK#3
if (x[0] !== undefined) {
  $ERROR('#3: Array.prototype[1] = -1; x = [0,1]; x.length = 2; x.reverse(); x.length = 0; x[0] === undefined. Actual: ' + (x[0]));
}

//CHECK#4
if (x[1] !== -1) {
  $ERROR('#4: Array.prototype[1] = -1; x = [0,1]; x.length = 2; x.reverse(); x.length = 0; x[1] === -1. Actual: ' + (x[1]));
}

Object.prototype[1] = -1;
Object.prototype.length = 2;
Object.prototype.reverse = Array.prototype.reverse;
x = {
  0: 0,
  1: 1
};
x.reverse();

//CHECK#5
if (x[0] !== 1) {
  $ERROR('#5: Object.prototype[1] = -1; Object.prototype.length = 2; Object.prototype.reverse = Array.prototype.reverse; x = {0:0,1:1}; x.reverse(); x[0] === 0. Actual: ' + (x[0]));
}

//CHECK#6
if (x[1] !== 0) {
  $ERROR('#6: Object.prototype[1] = -1; Object.prototype.length = 2; Object.prototype.reverse = Array.prototype.reverse; x = {0:0,1:1}; x.reverse(); x[1] === 0. Actual: ' + (x[1]));
}

delete x[0];
delete x[1];

//CHECK#7
if (x[0] !== undefined) {
  $ERROR('#7: Object.prototype[1] = -1; Object.prototype.length = 2; Object.prototype.reverse = Array.prototype.reverse; x = {0:0,1:1}; x.reverse(); delete x[0]; delete x[1]; x[0] === undefined. Actual: ' + (x[0]));
}

//CHECK#8
if (x[1] !== -1) {
  $ERROR('#8: Object.prototype[1] = -1; Object.prototype.length = 2; Object.prototype.reverse = Array.prototype.reverse; x = {0:0,1:1}; x.reverse(); delete x[0]; delete x[1]; x[1] === -1. Actual: ' + (x[1]));
}