JSTests/test262/test/language/expressions/division/S11.5.2_A4_T7.js

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

/*---
info: >
    The result of division is determined by the specification of IEEE 754
    arithmetics
es5id: 11.5.2_A4_T7
description: Division of a zero by a zero results in NaN
---*/

//CHECK#1
if (isNaN(+0 / +0) !== true) {
  $ERROR('#1: +0 / +0 === Not-a-Number. Actual: ' + (+0 / +0));
}  

//CHECK#2
if (isNaN(-0 / +0) !== true) {
  $ERROR('#2: -0 / +0 === Not-a-Number. Actual: ' + (-0 / +0)); 
} 

//CHECK#3
if (isNaN(+0 / -0) !== true) {
  $ERROR('#3: +0 / -0 === Not-a-Number. Actual: ' + (+0 / -0)); 
} 

//CHECK#4
if (isNaN(-0 / -0) !== true) {
  $ERROR('#4: -0 / -0 === Not-a-Number. Actual: ' + (-0 / -0));
}