| /* -*- 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(); |
| |