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

/*---
info: The production x &= y is the same as x = x & y
es5id: 11.13.2_A4.9_T1.1
description: >
    Type(x) and Type(y) vary between primitive boolean and Boolean
    object
---*/

var x;

//CHECK#1
x = true;
x &= true;
if (x !== 1) {
  $ERROR('#1: x = true; x &= true; x === 1. Actual: ' + (x));
}

//CHECK#2
x = new Boolean(true);
x &= true;
if (x !== 1) {
  $ERROR('#2: x = new Boolean(true); x &= true; x === 1. Actual: ' + (x));
}

//CHECK#3
x = true;
x &= new Boolean(true);
if (x !== 1) {
  $ERROR('#3: x = true; x &= new Boolean(true); x === 1. Actual: ' + (x));
}

//CHECK#4
x = new Boolean(true);
x &= new Boolean(true);
if (x !== 1) {
  $ERROR('#4: x = new Boolean(true); x &= new Boolean(true); x === 1. Actual: ' + (x));
}
