JSTests/test262/test/built-ins/Array/prototype/push/S15.4.4.7_A2_T1.js

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

/*---
info: |
    The push function is intentionally generic.
    It does not require that its this value be an Array object
esid: sec-array.prototype.push
es5id: 15.4.4.7_A2_T1
description: >
    The arguments are appended to the end of the array, in  the order
    in which they appear. The new length of the array is returned  as
    the result of the call
---*/

var obj = {};
obj.push = Array.prototype.push;

if (obj.length !== undefined) {
  $ERROR('#0: var obj = {}; obj.length === undefined. Actual: ' + (obj.length));
} else {
    //CHECK#1
    var push = obj.push(-1);
if (push !== 1) {
      $ERROR('#1: var obj = {}; obj.push = Array.prototype.push; obj.push(-1) === 1. Actual: ' + (push));
    }
    //CHECK#2
    if (obj.length !== 1) {
      $ERROR('#2: var obj = {}; obj.push = Array.prototype.push; obj.push(-1); obj.length === 1. Actual: ' + (obj.length));
    }
    //CHECK#3
    if (obj["0"] !== -1) {
      $ERROR('#3: var obj = {}; obj.push = Array.prototype.push; obj.push(-1); obj["0"] === -1. Actual: ' + (obj["0"]));
    }
}

//CHECK#4
obj.length = undefined;
var push = obj.push(-4);
if (push !== 1) {
  $ERROR('#4: var obj = {}; obj.length = undefined; obj.push = Array.prototype.push; obj.push(-4) === 1. Actual: ' + (push));
}

//CHECK#5
if (obj.length !== 1) {
  $ERROR('#5: var obj = {}; obj.length = undefined; obj.push = Array.prototype.push; obj.push(-4); obj.length === 1. Actual: ' + (obj.length));
}

//CHECK#6
if (obj["0"] !== -4) {
  $ERROR('#6: var obj = {}; obj.length = undefined; obj.push = Array.prototype.push; obj.push(-4); obj["0"] === -4. Actual: ' + (obj["0"]));
}

//CHECK#7
obj.length = null
var push = obj.push(-7);
if (push !== 1) {
  $ERROR('#7: var obj = {}; obj.length = null; obj.push = Array.prototype.push; obj.push(-7) === 1. Actual: ' + (push));
}

//CHECK#8
if (obj.length !== 1) {
  $ERROR('#8: var obj = {}; obj.length = null; obj.push = Array.prototype.push; obj.push(-7); obj.length === 1. Actual: ' + (obj.length));
}

//CHECK#9
if (obj["0"] !== -7) {
  $ERROR('#9: var obj = {}; obj.length = null; obj.push = Array.prototype.push; obj.push(-7); obj["0"] === -7. Actual: ' + (obj["0"]));
}