| /* -*- tab-width: 2; 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: 15.5.3.2-1.js |
| ECMA Section: 15.5.3.2 String.fromCharCode( char0, char1, ... ) |
| Description: Return a string value containing as many characters |
| as the number of arguments. Each argument specifies |
| one character of the resulting string, with the first |
| argument specifying the first character, and so on, |
| from left to right. An argument is converted to a |
| character by applying the operation ToUint16_t and |
| regarding the resulting 16bit integeras the Unicode |
| encoding of a character. If no arguments are supplied, |
| the result is the empty string. |
| |
| This test covers Basic Latin (range U+0020 - U+007F) |
| |
| Author: christine@netscape.com |
| Date: 2 october 1997 |
| */ |
| |
| var SECTION = "15.5.3.2-3"; |
| var VERSION = "ECMA_1"; |
| startTest(); |
| var TITLE = "String.fromCharCode()"; |
| |
| writeHeaderToLog( SECTION + " "+ TITLE); |
| |
| for ( CHARCODE = 0; CHARCODE < 256; CHARCODE++ ) { |
| new TestCase( SECTION, |
| "(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)", |
| ToUint16(CHARCODE), |
| (String.fromCharCode(CHARCODE)).charCodeAt(0) |
| ); |
| } |
| for ( CHARCODE = 256; CHARCODE < 65536; CHARCODE+=333 ) { |
| new TestCase( SECTION, |
| "(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)", |
| ToUint16(CHARCODE), |
| (String.fromCharCode(CHARCODE)).charCodeAt(0) |
| ); |
| } |
| for ( CHARCODE = 65535; CHARCODE < 65538; CHARCODE++ ) { |
| new TestCase( SECTION, |
| "(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)", |
| ToUint16(CHARCODE), |
| (String.fromCharCode(CHARCODE)).charCodeAt(0) |
| ); |
| } |
| for ( CHARCODE = Math.pow(2,32)-1; CHARCODE < Math.pow(2,32)+1; CHARCODE++ ) { |
| new TestCase( SECTION, |
| "(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)", |
| ToUint16(CHARCODE), |
| (String.fromCharCode(CHARCODE)).charCodeAt(0) |
| ); |
| } |
| for ( CHARCODE = 0; CHARCODE > -65536; CHARCODE-=3333 ) { |
| new TestCase( SECTION, |
| "(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)", |
| ToUint16(CHARCODE), |
| (String.fromCharCode(CHARCODE)).charCodeAt(0) |
| ); |
| } |
| new TestCase( SECTION, "(String.fromCharCode(65535)).charCodeAt(0)", 65535, (String.fromCharCode(65535)).charCodeAt(0) ); |
| new TestCase( SECTION, "(String.fromCharCode(65536)).charCodeAt(0)", 0, (String.fromCharCode(65536)).charCodeAt(0) ); |
| new TestCase( SECTION, "(String.fromCharCode(65537)).charCodeAt(0)", 1, (String.fromCharCode(65537)).charCodeAt(0) ); |
| |
| test(); |
| |
| function ToUint16( num ) { |
| num = Number( num ); |
| if ( isNaN( num ) || num == 0 || num == Number.POSITIVE_INFINITY || num == Number.NEGATIVE_INFINITY ) { |
| return 0; |
| } |
| |
| var sign = ( num < 0 ) ? -1 : 1; |
| |
| num = sign * Math.floor( Math.abs( num ) ); |
| num = num % Math.pow(2,16); |
| num = ( num > -65536 && num < 0) ? 65536 + num : num; |
| return num; |
| } |
| |