michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 
michael@0: /**
michael@0:    File Name:          15.5.3.2-1.js
michael@0:    ECMA Section:       15.5.3.2  String.fromCharCode( char0, char1, ... )
michael@0:    Description:        Return a string value containing as many characters
michael@0:    as the number of arguments.  Each argument specifies
michael@0:    one character of the resulting string, with the first
michael@0:    argument specifying the first character, and so on,
michael@0:    from left to right.  An argument is converted to a
michael@0:    character by applying the operation ToUint16_t and
michael@0:    regarding the resulting 16bit integeras the Unicode
michael@0:    encoding of a character.  If no arguments are supplied,
michael@0:    the result is the empty string.
michael@0: 
michael@0:    This test covers Basic Latin (range U+0020 - U+007F)
michael@0: 
michael@0:    Author:             christine@netscape.com
michael@0:    Date:               2 october 1997
michael@0: */
michael@0: 
michael@0: var SECTION = "15.5.3.2-3";
michael@0: var VERSION = "ECMA_1";
michael@0: startTest();
michael@0: var TITLE   = "String.fromCharCode()";
michael@0: 
michael@0: writeHeaderToLog( SECTION + " "+ TITLE);
michael@0: 
michael@0: for ( CHARCODE = 0; CHARCODE < 256; CHARCODE++ ) {
michael@0:   new TestCase(   SECTION,
michael@0: 		  "(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)",
michael@0: 		  ToUint16(CHARCODE),
michael@0: 		  (String.fromCharCode(CHARCODE)).charCodeAt(0)
michael@0:     );
michael@0: }
michael@0: for ( CHARCODE = 256; CHARCODE < 65536; CHARCODE+=333 ) {
michael@0:   new TestCase(   SECTION,
michael@0: 		  "(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)",
michael@0: 		  ToUint16(CHARCODE),
michael@0: 		  (String.fromCharCode(CHARCODE)).charCodeAt(0)
michael@0:     );
michael@0: }
michael@0: for ( CHARCODE = 65535; CHARCODE < 65538; CHARCODE++ ) {
michael@0:   new TestCase(   SECTION,
michael@0: 		  "(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)",
michael@0: 		  ToUint16(CHARCODE),
michael@0: 		  (String.fromCharCode(CHARCODE)).charCodeAt(0)
michael@0:     );
michael@0: }
michael@0: for ( CHARCODE = Math.pow(2,32)-1; CHARCODE < Math.pow(2,32)+1; CHARCODE++ ) {
michael@0:   new TestCase(   SECTION,
michael@0: 		  "(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)",
michael@0: 		  ToUint16(CHARCODE),
michael@0: 		  (String.fromCharCode(CHARCODE)).charCodeAt(0)
michael@0:     );
michael@0: }
michael@0: for ( CHARCODE = 0; CHARCODE > -65536; CHARCODE-=3333 ) {
michael@0:   new TestCase(   SECTION,
michael@0: 		  "(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)",
michael@0: 		  ToUint16(CHARCODE),
michael@0: 		  (String.fromCharCode(CHARCODE)).charCodeAt(0)
michael@0:     );
michael@0: }
michael@0: new TestCase( SECTION, "(String.fromCharCode(65535)).charCodeAt(0)",    65535,  (String.fromCharCode(65535)).charCodeAt(0) );
michael@0: new TestCase( SECTION, "(String.fromCharCode(65536)).charCodeAt(0)",    0,      (String.fromCharCode(65536)).charCodeAt(0) );
michael@0: new TestCase( SECTION, "(String.fromCharCode(65537)).charCodeAt(0)",    1,      (String.fromCharCode(65537)).charCodeAt(0) );
michael@0: 
michael@0: test();
michael@0: 
michael@0: function ToUint16( num ) {
michael@0:   num = Number( num );
michael@0:   if ( isNaN( num ) || num == 0 || num == Number.POSITIVE_INFINITY || num == Number.NEGATIVE_INFINITY ) {
michael@0:     return 0;
michael@0:   }
michael@0: 
michael@0:   var sign = ( num < 0 ) ? -1 : 1;
michael@0: 
michael@0:   num = sign * Math.floor( Math.abs( num ) );
michael@0:   num = num % Math.pow(2,16);
michael@0:   num = ( num > -65536 && num < 0) ? 65536 + num : num;
michael@0:   return num;
michael@0: }
michael@0: