js/tests/js1_3/extensions/proto_2.js

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  38
  39 gTestfile = 'proto_2.js';
  40
  41 /**
  42    File Name:          proto_2.js
  43    Section:
  44    Description:        new PrototypeObject
  45
  46    This tests Object Hierarchy and Inheritance, as described in the document
  47    Object Hierarchy and Inheritance in JavaScript, last modified on 12/18/97
  48    15:19:34 on http://devedge.netscape.com/.  Current URL:
  49    http://devedge.netscape.com/docs/manuals/communicator/jsobj/contents.htm
  50
  51    This tests the syntax ObjectName.prototype = new PrototypeObject using the
  52    Employee example in the document referenced above.
  53
  54    Author:             christine@netscape.com
  55    Date:               12 november 1997
  56 */
  57
  58 var SECTION = "proto_2";
  59 var VERSION = "JS1_3";
  60 var TITLE   = "new PrototypeObject";
  61
  62 startTest();
  63 writeHeaderToLog( SECTION + " "+ TITLE);
  64
  65 function Employee () {
  66   this.name = "";
  67   this.dept = "general";
  68 }
  69 function Manager () {
  70   this.reports = [];
  71 }
  72 Manager.prototype = new Employee();
  73
  74 function WorkerBee () {
  75   this.projects = new Array();
  76 }
  77
  78 WorkerBee.prototype = new Employee;
  79
  80 function SalesPerson () {
  81   this.dept = "sales";
  82   this.quota = 100;
  83 }
  84 SalesPerson.prototype = new WorkerBee;
  85
  86 function Engineer () {
  87   this.dept = "engineering";
  88   this.machine = "";
  89 }
  90 Engineer.prototype = new WorkerBee;
  91
  92
  93 var employee    = new Employee();
  94 var manager     = new Manager();
  95 var workerbee   = new WorkerBee();
  96 var salesperson = new SalesPerson();
  97 var engineer    = new Engineer();
  98
  99 new TestCase( SECTION,
 100               "employee.__proto__ == Employee.prototype",
 101               true,
 102               employee.__proto__ == Employee.prototype );
 103
 104 new TestCase( SECTION,
 105               "manager.__proto__ == Manager.prototype",
 106               true,
 107               manager.__proto__ == Manager.prototype );
 108
 109 new TestCase( SECTION,
 110               "workerbee.__proto__ == WorkerBee.prototype",
 111               true,
 112               workerbee.__proto__ == WorkerBee.prototype );
 113
 114 new TestCase( SECTION,
 115               "salesperson.__proto__ == SalesPerson.prototype",
 116               true,
 117               salesperson.__proto__ == SalesPerson.prototype );
 118
 119 new TestCase( SECTION,
 120               "engineer.__proto__ == Engineer.prototype",
 121               true,
 122               engineer.__proto__ == Engineer.prototype );
 123
 124 test();
 125