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: proto_4.js 24 Section: 25 Description: new PrototypeObject 26 27 This tests Object Hierarchy and Inheritance, as described in the document 28 Object Hierarchy and Inheritance in JavaScript, last modified on 12/18/97 29 15:19:34 on http://devedge.netscape.com/. Current URL: 30 http://devedge.netscape.com/docs/manuals/communicator/jsobj/contents.htm 31 32 This tests the syntax ObjectName.prototype = new PrototypeObject using the 33 Employee example in the document referenced above. 34 35 If you add a property to an object in the prototype chain, instances of 36 objects that derive from that prototype should inherit that property, even 37 if they were instatiated after the property was added to the prototype object. 38 39 40 Author: christine@netscape.com 41 Date: 12 november 1997 42*/ 43 44 var SECTION = "proto_3"; 45 var VERSION = "JS1_3"; 46 var TITLE = "Adding properties to the prototype"; 47 48 startTest(); 49 writeHeaderToLog( SECTION + " "+ TITLE); 50 51 var testcases = new Array(); 52 53function Employee () { 54 this.name = ""; 55 this.dept = "general"; 56} 57function Manager () { 58 this.reports = []; 59} 60Manager.prototype = new Employee(); 61 62function WorkerBee () { 63 this.projects = new Array(); 64} 65 66WorkerBee.prototype = new Employee(); 67 68function SalesPerson () { 69 this.dept = "sales"; 70 this.quota = 100; 71} 72SalesPerson.prototype = new WorkerBee(); 73 74function Engineer () { 75 this.dept = "engineering"; 76 this.machine = ""; 77} 78Engineer.prototype = new WorkerBee(); 79 80function test() { 81 for ( tc=0; tc < testcases.length; tc++ ) { 82 testcases[tc].passed = writeTestCaseResult( 83 testcases[tc].expect, 84 testcases[tc].actual, 85 testcases[tc].description +" = "+ 86 testcases[tc].actual ); 87 88 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; 89 } 90 stopTest(); 91 return ( testcases ); 92} 93 94 var jim = new Employee(); 95 var terry = new Engineer(); 96 var sean = new SalesPerson(); 97 var wally = new Manager(); 98 99 Employee.prototype.specialty = "none"; 100 101 var pat = new Employee(); 102 var leslie = new Engineer(); 103 var bubbles = new SalesPerson(); 104 var furry = new Manager(); 105 106 Engineer.prototype.specialty = "code"; 107 108 var chris = new Engineer(); 109 110 111 testcases[tc++] = new TestCase( SECTION, 112 "jim = new Employee(); jim.specialty", 113 "none", 114 jim.specialty ); 115 116 testcases[tc++] = new TestCase( SECTION, 117 "terry = new Engineer(); terry.specialty", 118 "code", 119 terry.specialty ); 120 121 testcases[tc++] = new TestCase( SECTION, 122 "sean = new SalesPerson(); sean.specialty", 123 "none", 124 sean.specialty ); 125 126 testcases[tc++] = new TestCase( SECTION, 127 "wally = new Manager(); wally.specialty", 128 "none", 129 wally.specialty ); 130 131 testcases[tc++] = new TestCase( SECTION, 132 "furry = new Manager(); furry.specialty", 133 "none", 134 furry.specialty ); 135 136 testcases[tc++] = new TestCase( SECTION, 137 "pat = new Employee(); pat.specialty", 138 "none", 139 pat.specialty ); 140 141 testcases[tc++] = new TestCase( SECTION, 142 "leslie = new Engineer(); leslie.specialty", 143 "code", 144 leslie.specialty ); 145 146 testcases[tc++] = new TestCase( SECTION, 147 "bubbles = new SalesPerson(); bubbles.specialty", 148 "none", 149 bubbles.specialty ); 150 151 152 testcases[tc++] = new TestCase( SECTION, 153 "chris = new Employee(); chris.specialty", 154 "code", 155 chris.specialty ); 156 test(); 157