1/* The contents of this file are subject to the Netscape Public 2 * License Version 1.1 (the "License"); you may not use this file 3 * except in compliance with the License. You may obtain a copy of 4 * the License at http://www.mozilla.org/NPL/ 5 * 6 * Software distributed under the License is distributed on an "AS 7 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 8 * implied. See the License for the specific language governing 9 * rights and limitations under the License. 10 * 11 * The Original Code is Mozilla Communicator client code, released March 12 * 31, 1998. 13 * 14 * The Initial Developer of the Original Code is Netscape Communications 15 * Corporation. Portions created by Netscape are 16 * Copyright (C) 1998 Netscape Communications Corporation. All 17 * Rights Reserved. 18 * 19 * Contributor(s): 20 * 21 */ 22/** 23 File Name: 15.5.4.4-4.js 24 ECMA Section: 15.5.4.4 String.prototype.charAt(pos) 25 Description: Returns a string containing the character at position 26 pos in the string. If there is no character at that 27 string, the result is the empty string. The result is 28 a string value, not a String object. 29 30 When the charAt method is called with one argument, 31 pos, the following steps are taken: 32 1. Call ToString, with this value as its argument 33 2. Call ToInteger pos 34 3. Compute the number of characters in Result(1) 35 4. If Result(2) is less than 0 is or not less than 36 Result(3), return the empty string 37 5. Return a string of length 1 containing one character 38 from result (1), the character at position Result(2). 39 40 Note that the charAt function is intentionally generic; 41 it does not require that its this value be a String 42 object. Therefore it can be transferred to other kinds 43 of objects for use as a method. 44 45 This tests assiging charAt to primitive types.. 46 47 Author: christine@netscape.com 48 Date: 2 october 1997 49*/ 50 var SECTION = "15.5.4.4-4"; 51 var VERSION = "ECMA_2"; 52 startTest(); 53 var TITLE = "String.prototype.charAt"; 54 55 writeHeaderToLog( SECTION + " "+ TITLE); 56 57 var testcases = getTestCases(); 58 test(); 59 60function getTestCases() { 61 var array = new Array(); 62 var item = 0; 63/* 64 array[item++] = new TestCase( SECTION, "x = null; x.__proto.charAt = String.prototype.charAt; x.charAt(0)", "n", eval("x=null; x.__proto__.charAt = String.prototype.charAt; x.charAt(0)") ); 65 array[item++] = new TestCase( SECTION, "x = null; x.__proto.charAt = String.prototype.charAt; x.charAt(1)", "u", eval("x=null; x.__proto__.charAt = String.prototype.charAt; x.charAt(1)") ); 66 array[item++] = new TestCase( SECTION, "x = null; x.__proto.charAt = String.prototype.charAt; x.charAt(2)", "l", eval("x=null; x.__proto__.charAt = String.prototype.charAt; x.charAt(2)") ); 67 array[item++] = new TestCase( SECTION, "x = null; x.__proto.charAt = String.prototype.charAt; x.charAt(3)", "l", eval("x=null; x.__proto__.charAt = String.prototype.charAt; x.charAt(3)") ); 68 69 array[item++] = new TestCase( SECTION, "x = undefined; x.__proto.charAt = String.prototype.charAt; x.charAt(0)", "u", eval("x=undefined; x.__proto__.charAt = String.prototype.charAt; x.charAt(0)") ); 70 array[item++] = new TestCase( SECTION, "x = undefined; x.__proto.charAt = String.prototype.charAt; x.charAt(1)", "n", eval("x=undefined; x.__proto__.charAt = String.prototype.charAt; x.charAt(1)") ); 71 array[item++] = new TestCase( SECTION, "x = undefined; x.__proto.charAt = String.prototype.charAt; x.charAt(2)", "d", eval("x=undefined; x.__proto__.charAt = String.prototype.charAt; x.charAt(2)") ); 72 array[item++] = new TestCase( SECTION, "x = undefined; x.__proto.charAt = String.prototype.charAt; x.charAt(3)", "e", eval("x=undefined; x.__proto__.charAt = String.prototype.charAt; x.charAt(3)") ); 73*/ 74 array[item++] = new TestCase( SECTION, "x = false; x.__proto.charAt = String.prototype.charAt; x.charAt(0)", "f", eval("x=false; x.__proto__.charAt = String.prototype.charAt; x.charAt(0)") ); 75 array[item++] = new TestCase( SECTION, "x = false; x.__proto.charAt = String.prototype.charAt; x.charAt(1)", "a", eval("x=false; x.__proto__.charAt = String.prototype.charAt; x.charAt(1)") ); 76 array[item++] = new TestCase( SECTION, "x = false; x.__proto.charAt = String.prototype.charAt; x.charAt(2)", "l", eval("x=false; x.__proto__.charAt = String.prototype.charAt; x.charAt(2)") ); 77 array[item++] = new TestCase( SECTION, "x = false; x.__proto.charAt = String.prototype.charAt; x.charAt(3)", "s", eval("x=false; x.__proto__.charAt = String.prototype.charAt; x.charAt(3)") ); 78 array[item++] = new TestCase( SECTION, "x = false; x.__proto.charAt = String.prototype.charAt; x.charAt(4)", "e", eval("x=false; x.__proto__.charAt = String.prototype.charAt; x.charAt(4)") ); 79 80 array[item++] = new TestCase( SECTION, "x = true; x.__proto.charAt = String.prototype.charAt; x.charAt(0)", "t", eval("x=true; x.__proto__.charAt = String.prototype.charAt; x.charAt(0)") ); 81 array[item++] = new TestCase( SECTION, "x = true; x.__proto.charAt = String.prototype.charAt; x.charAt(1)", "r", eval("x=true; x.__proto__.charAt = String.prototype.charAt; x.charAt(1)") ); 82 array[item++] = new TestCase( SECTION, "x = true; x.__proto.charAt = String.prototype.charAt; x.charAt(2)", "u", eval("x=true; x.__proto__.charAt = String.prototype.charAt; x.charAt(2)") ); 83 array[item++] = new TestCase( SECTION, "x = true; x.__proto.charAt = String.prototype.charAt; x.charAt(3)", "e", eval("x=true; x.__proto__.charAt = String.prototype.charAt; x.charAt(3)") ); 84 85 array[item++] = new TestCase( SECTION, "x = NaN; x.__proto.charAt = String.prototype.charAt; x.charAt(0)", "N", eval("x=NaN; x.__proto__.charAt = String.prototype.charAt; x.charAt(0)") ); 86 array[item++] = new TestCase( SECTION, "x = NaN; x.__proto.charAt = String.prototype.charAt; x.charAt(1)", "a", eval("x=NaN; x.__proto__.charAt = String.prototype.charAt; x.charAt(1)") ); 87 array[item++] = new TestCase( SECTION, "x = NaN; x.__proto.charAt = String.prototype.charAt; x.charAt(2)", "N", eval("x=NaN; x.__proto__.charAt = String.prototype.charAt; x.charAt(2)") ); 88 89 array[item++] = new TestCase( SECTION, "x = 123; x.__proto.charAt = String.prototype.charAt; x.charAt(0)", "1", eval("x=123; x.__proto__.charAt = String.prototype.charAt; x.charAt(0)") ); 90 array[item++] = new TestCase( SECTION, "x = 123; x.__proto.charAt = String.prototype.charAt; x.charAt(1)", "2", eval("x=123; x.__proto__.charAt = String.prototype.charAt; x.charAt(1)") ); 91 array[item++] = new TestCase( SECTION, "x = 123; x.__proto.charAt = String.prototype.charAt; x.charAt(2)", "3", eval("x=123; x.__proto__.charAt = String.prototype.charAt; x.charAt(2)") ); 92 93 94 array[item++] = new TestCase( SECTION, "x = new Array(1,2,3); x.charAt = String.prototype.charAt; x.charAt(0)", "1", eval("x=new Array(1,2,3); x.charAt = String.prototype.charAt; x.charAt(0)") ); 95 array[item++] = new TestCase( SECTION, "x = new Array(1,2,3); x.charAt = String.prototype.charAt; x.charAt(1)", ",", eval("x=new Array(1,2,3); x.charAt = String.prototype.charAt; x.charAt(1)") ); 96 array[item++] = new TestCase( SECTION, "x = new Array(1,2,3); x.charAt = String.prototype.charAt; x.charAt(2)", "2", eval("x=new Array(1,2,3); x.charAt = String.prototype.charAt; x.charAt(2)") ); 97 array[item++] = new TestCase( SECTION, "x = new Array(1,2,3); x.charAt = String.prototype.charAt; x.charAt(3)", ",", eval("x=new Array(1,2,3); x.charAt = String.prototype.charAt; x.charAt(3)") ); 98 array[item++] = new TestCase( SECTION, "x = new Array(1,2,3); x.charAt = String.prototype.charAt; x.charAt(4)", "3", eval("x=new Array(1,2,3); x.charAt = String.prototype.charAt; x.charAt(4)") ); 99 100 array[item++] = new TestCase( SECTION, "x = new Array(); x.charAt = String.prototype.charAt; x.charAt(0)", "", eval("x = new Array(); x.charAt = String.prototype.charAt; x.charAt(0)") ); 101 102 array[item++] = new TestCase( SECTION, "x = new Number(123); x.charAt = String.prototype.charAt; x.charAt(0)", "1", eval("x=new Number(123); x.charAt = String.prototype.charAt; x.charAt(0)") ); 103 array[item++] = new TestCase( SECTION, "x = new Number(123); x.charAt = String.prototype.charAt; x.charAt(1)", "2", eval("x=new Number(123); x.charAt = String.prototype.charAt; x.charAt(1)") ); 104 array[item++] = new TestCase( SECTION, "x = new Number(123); x.charAt = String.prototype.charAt; x.charAt(2)", "3", eval("x=new Number(123); x.charAt = String.prototype.charAt; x.charAt(2)") ); 105 106 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(0)", "[", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(0)") ); 107 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(1)", "o", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(1)") ); 108 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(2)", "b", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(2)") ); 109 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(3)", "j", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(3)") ); 110 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(4)", "e", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(4)") ); 111 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(5)", "c", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(5)") ); 112 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(6)", "t", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(6)") ); 113 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(7)", " ", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(7)") ); 114 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(8)", "O", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(8)") ); 115 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(9)", "b", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(9)") ); 116 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(10)", "j", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(10)") ); 117 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(11)", "e", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(11)") ); 118 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(12)", "c", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(12)") ); 119 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(13)", "t", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(13)") ); 120 array[item++] = new TestCase( SECTION, "x = new Object(); x.charAt = String.prototype.charAt; x.charAt(14)", "]", eval("x=new Object(); x.charAt = String.prototype.charAt; x.charAt(14)") ); 121 122 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(0)", "[", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(0)") ); 123 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(1)", "o", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(1)") ); 124 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(2)", "b", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(2)") ); 125 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(3)", "j", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(3)") ); 126 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(4)", "e", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(4)") ); 127 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(5)", "c", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(5)") ); 128 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(6)", "t", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(6)") ); 129 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(7)", " ", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(7)") ); 130 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(8)", "F", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(8)") ); 131 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(9)", "u", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(9)") ); 132 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(10)", "n", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(10)") ); 133 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(11)", "c", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(11)") ); 134 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(12)", "t", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(12)") ); 135 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(13)", "i", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(13)") ); 136 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(14)", "o", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(14)") ); 137 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(15)", "n", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(15)") ); 138 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(16)", "]", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(16)") ); 139 array[item++] = new TestCase( SECTION, "x = new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(17)", "", eval("x=new Function(); x.toString = Object.prototype.toString; x.charAt = String.prototype.charAt; x.charAt(17)") ); 140 141 142 return array; 143} 144 145function test() { 146 for ( tc = 0; tc < testcases.length; tc++ ) { 147 testcases[tc].passed = writeTestCaseResult( 148 testcases[tc].expect, 149 testcases[tc].actual, 150 testcases[tc].description +" = "+ 151 testcases[tc].actual ); 152 153 testcases[tc].reason += ( testcases[tc].passed ) 154 ? "" 155 : "wrong value " 156 } 157 stopTest(); 158 return ( testcases ); 159} 160