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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
File Name: 9.2.js
ECMA Section: 9.2 Type Conversion: ToBoolean
Description: rules for converting an argument to a boolean.
undefined false
Null false
Boolean input argument( no conversion )
Number returns false for 0, -0, and NaN
otherwise return true
String return false if the string is empty
(length is 0) otherwise the result is
true
Object all return true
Author: christine@netscape.com
Date: 14 july 1997
*/
var SECTION = "9.2";
var VERSION = "ECMA_1";
startTest();
var TITLE = "ToBoolean";
writeHeaderToLog( SECTION + " "+ TITLE);
// special cases here
new TestCase( SECTION, "Boolean()", false, Boolean() );
new TestCase( SECTION, "Boolean(var x)", false, Boolean(eval("var x")) );
new TestCase( SECTION, "Boolean(void 0)", false, Boolean(void 0) );
new TestCase( SECTION, "Boolean(null)", false, Boolean(null) );
new TestCase( SECTION, "Boolean(false)", false, Boolean(false) );
new TestCase( SECTION, "Boolean(true)", true, Boolean(true) );
new TestCase( SECTION, "Boolean(0)", false, Boolean(0) );
new TestCase( SECTION, "Boolean(-0)", false, Boolean(-0) );
new TestCase( SECTION, "Boolean(NaN)", false, Boolean(Number.NaN) );
new TestCase( SECTION, "Boolean('')", false, Boolean("") );
// normal test cases here
new TestCase( SECTION, "Boolean(Infinity)", true, Boolean(Number.POSITIVE_INFINITY) );
new TestCase( SECTION, "Boolean(-Infinity)", true, Boolean(Number.NEGATIVE_INFINITY) );
new TestCase( SECTION, "Boolean(Math.PI)", true, Boolean(Math.PI) );
new TestCase( SECTION, "Boolean(1)", true, Boolean(1) );
new TestCase( SECTION, "Boolean(-1)", true, Boolean(-1) );
new TestCase( SECTION, "Boolean([tab])", true, Boolean("\t") );
new TestCase( SECTION, "Boolean('0')", true, Boolean("0") );
new TestCase( SECTION, "Boolean('string')", true, Boolean("string") );
// ToBoolean (object) should always return true.
new TestCase( SECTION, "Boolean(new String() )", true, Boolean(new String()) );
new TestCase( SECTION, "Boolean(new String('') )", true, Boolean(new String("")) );
new TestCase( SECTION, "Boolean(new Boolean(true))", true, Boolean(new Boolean(true)) );
new TestCase( SECTION, "Boolean(new Boolean(false))", true, Boolean(new Boolean(false)) );
new TestCase( SECTION, "Boolean(new Boolean() )", true, Boolean(new Boolean()) );
new TestCase( SECTION, "Boolean(new Array())", true, Boolean(new Array()) );
new TestCase( SECTION, "Boolean(new Number())", true, Boolean(new Number()) );
new TestCase( SECTION, "Boolean(new Number(-0))", true, Boolean(new Number(-0)) );
new TestCase( SECTION, "Boolean(new Number(0))", true, Boolean(new Number(0)) );
new TestCase( SECTION, "Boolean(new Number(NaN))", true, Boolean(new Number(Number.NaN)) );
new TestCase( SECTION, "Boolean(new Number(-1))", true, Boolean(new Number(-1)) );
new TestCase( SECTION, "Boolean(new Number(Infinity))", true, Boolean(new Number(Number.POSITIVE_INFINITY)) );
new TestCase( SECTION, "Boolean(new Number(-Infinity))",true, Boolean(new Number(Number.NEGATIVE_INFINITY)) );
new TestCase( SECTION, "Boolean(new Object())", true, Boolean(new Object()) );
new TestCase( SECTION, "Boolean(new Function())", true, Boolean(new Function()) );
new TestCase( SECTION, "Boolean(new Date())", true, Boolean(new Date()) );
new TestCase( SECTION, "Boolean(new Date(0))", true, Boolean(new Date(0)) );
new TestCase( SECTION, "Boolean(Math)", true, Boolean(Math) );
// bug 375793
new TestCase( SECTION,
"NaN ? true : false",
false,
(NaN ? true : false) );
new TestCase( SECTION,
"1000 % 0 ? true : false",
false,
(1000 % 0 ? true : false) );
new TestCase( SECTION,
"(function(a,b){ return a % b ? true : false })(1000, 0)",
false,
((function(a,b){ return a % b ? true : false })(1000, 0)) );
new TestCase( SECTION,
"(function(x) { return !(x) })(0/0)",
true,
((function(x) { return !(x) })(0/0)) );
new TestCase( SECTION,
"!(0/0)",
true,
(!(0/0)) );
test();
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