test262/test/language/expressions/logical-or/S11.11.2_A3_T2.js

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

/*---
info: If ToBoolean(x) is false, return y
es5id: 11.11.2_A3_T2
description: Type(x) and Type(y) vary between primitive number and Number object
---*/

//CHECK#1
if ((0 || -0) !== 0) {
  throw new Test262Error('#1.1: (0 || -0) === 0');
} else {
  if ((1 / (0 || -0)) !== Number.NEGATIVE_INFINITY) {
    throw new Test262Error('#1.2: (0 || -0) === -0');
  }
}

//CHECK#2
if ((-0 || 0) !== 0) {
  throw new Test262Error('#2.1: (-0 || 0) === 0');
} else {
  if ((1 / (-0 || 0)) !== Number.POSITIVE_INFINITY) {
    throw new Test262Error('#2.2: (-0 || 0) === +0');
  }
}

//CHECK#3
var y = new Number(-1);
if ((0 || y) !== y) {
  throw new Test262Error('#3: (var y = new Number(-1); 0 || y) === y');
} 

//CHECK#4
var y = new Number(0);
if ((NaN || y) !== y) {
  throw new Test262Error('#4: (var y = new Number(0); NaN || y) === y');
}