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:          15.5.4.5.1.js
michael@0:    ECMA Section:       15.5.4.5 String.prototype.charCodeAt(pos)
michael@0:    Description:        Returns a number (a nonnegative integer less than 2^16)
michael@0:    representing the Unicode encoding of the character at
michael@0:    position pos in this string.  If there is no character
michael@0:    at that position, the number is NaN.
michael@0: 
michael@0:    When the charCodeAt method is called with one argument
michael@0:    pos, the following steps are taken:
michael@0:    1. Call ToString, giving it the theis value as its
michael@0:    argument
michael@0:    2. Call ToInteger(pos)
michael@0:    3. Compute the number of characters in result(1).
michael@0:    4. If Result(2) is less than 0 or is not less than
michael@0:    Result(3), return NaN.
michael@0:    5. Return a value of Number type, of positive sign, whose
michael@0:    magnitude is the Unicode encoding of one character
michael@0:    from result 1, namely the characer at position Result
michael@0:    (2), where the first character in Result(1) is
michael@0:    considered to be at position 0.
michael@0: 
michael@0:    Note that the charCodeAt function is intentionally
michael@0:    generic; it does not require that its this value be a
michael@0:    String object.  Therefore it can be transferred to other
michael@0:    kinds of objects for use as a method.
michael@0: 
michael@0:    Author:             christine@netscape.com
michael@0:    Date:               2 october 1997
michael@0: */
michael@0: var SECTION = "15.5.4.5-5";
michael@0: var VERSION = "ECMA_1";
michael@0: startTest();
michael@0: var TITLE   = "String.prototype.charCodeAt";
michael@0: 
michael@0: writeHeaderToLog( SECTION + " "+ TITLE);
michael@0: 
michael@0: var TEST_STRING = "";
michael@0: 
michael@0: for ( var i = 0x0000; i < 255; i++ ) {
michael@0:   TEST_STRING += String.fromCharCode( i );
michael@0: }
michael@0: 
michael@0: new TestCase( SECTION,     "x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(0)", 0x0074,    eval("x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(0)") );
michael@0: new TestCase( SECTION,     "x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(1)", 0x0072,    eval("x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(1)") );
michael@0: new TestCase( SECTION,     "x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(2)", 0x0075,    eval("x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(2)") );
michael@0: new TestCase( SECTION,     "x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(3)", 0x0065,    eval("x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(3)") );
michael@0: new TestCase( SECTION,     "x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(4)", Number.NaN,     eval("x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(4)") );
michael@0: new TestCase( SECTION,     "x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(-1)", Number.NaN,    eval("x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(-1)") );
michael@0: 
michael@0: new TestCase( SECTION,     "x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(true)",  0x0072,    eval("x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(true)") );
michael@0: new TestCase( SECTION,     "x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(false)", 0x0074,    eval("x = new Boolean(true); x.charCodeAt=String.prototype.charCodeAt;x.charCodeAt(false)") );
michael@0: 
michael@0: new TestCase( SECTION,     "x = new String(); x.charCodeAt(0)",    Number.NaN,     eval("x=new String();x.charCodeAt(0)") );
michael@0: new TestCase( SECTION,     "x = new String(); x.charCodeAt(1)",    Number.NaN,     eval("x=new String();x.charCodeAt(1)") );
michael@0: new TestCase( SECTION,     "x = new String(); x.charCodeAt(-1)",   Number.NaN,     eval("x=new String();x.charCodeAt(-1)") );
michael@0: 
michael@0: new TestCase( SECTION,     "x = new String(); x.charCodeAt(NaN)",  Number.NaN,     eval("x=new String();x.charCodeAt(Number.NaN)") );
michael@0: new TestCase( SECTION,     "x = new String(); x.charCodeAt(Number.POSITIVE_INFINITY)",   Number.NaN,     eval("x=new String();x.charCodeAt(Number.POSITIVE_INFINITY)") );
michael@0: new TestCase( SECTION,     "x = new String(); x.charCodeAt(Number.NEGATIVE_INFINITY)",   Number.NaN,     eval("x=new String();x.charCodeAt(Number.NEGATIVE_INFINITY)") );
michael@0: 
michael@0: for ( var j = 0; j < 255; j++ ) {
michael@0:   new TestCase( SECTION,  "TEST_STRING.charCodeAt("+j+")",    j,     TEST_STRING.charCodeAt(j) );
michael@0: }
michael@0: 
michael@0: test();