gecko/js/tests/ecma/String/15.5.4.4-1.js

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/**
   File Name:          15.5.4.4-1.js
   ECMA Section:       15.5.4.4 String.prototype.charAt(pos)
   Description:        Returns a string containing the character at position
   pos in the string.  If there is no character at that
   string, the result is the empty string.  The result is
   a string value, not a String object.

   When the charAt method is called with one argument,
   pos, the following steps are taken:
   1. Call ToString, with this value as its argument
   2. Call ToInteger pos

   In this test, this is a String, pos is an integer, and
   all pos are in range.

   Author:             christine@netscape.com
   Date:               2 october 1997
*/
var SECTION = "15.5.4.4-1";
var VERSION = "ECMA_1";
startTest();
var TITLE   = "String.prototype.charAt";

writeHeaderToLog( SECTION + " "+ TITLE);

var TEST_STRING = new String( " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~" );

var item = 0;
var i;

for (  i = 0x0020; i < 0x007e; i++, item++) {
  new TestCase( SECTION,
		"TEST_STRING.charAt("+item+")",
		String.fromCharCode( i ),
		TEST_STRING.charAt( item ) );
}

for ( i = 0x0020; i < 0x007e; i++, item++) {
  new TestCase( SECTION,
		"TEST_STRING.charAt("+item+") == TEST_STRING.substring( "+item +", "+ (item+1) + ")",
		true,
		TEST_STRING.charAt( item )  == TEST_STRING.substring( item, item+1 )
    );
}

new TestCase( SECTION,  "String.prototype.charAt.length",       1,  String.prototype.charAt.length );

print( "TEST_STRING = new String(\" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\")" );

test();