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43 Description: new PrototypeObject
45 This tests Object Hierarchy and Inheritance, as described in the document
46 Object Hierarchy and Inheritance in JavaScript, last modified on 12/18/97
47 15:19:34 on http://devedge.netscape.com/. Current URL:
48 http://devedge.netscape.com/docs/manuals/communicator/jsobj/contents.htm
50 This tests the syntax ObjectName.prototype = new PrototypeObject using the
51 Employee example in the document referenced above.
53 Author: christine@netscape.com
54 Date: 12 november 1997
57 var SECTION = "proto_1";
58 var VERSION = "JS1_3";
59 var TITLE = "new PrototypeObject";
62 writeHeaderToLog( SECTION + " "+ TITLE);
64 function Employee () {
66 this.dept = "general";
71 Manager.prototype = new Employee();
73 function WorkerBee () {
74 this.projects = new Array();
76 WorkerBee.prototype = new Employee();
78 function SalesPerson () {
82 SalesPerson.prototype = new WorkerBee();
84 function Engineer () {
85 this.dept = "engineering";
88 Engineer.prototype = new WorkerBee();
90 var jim = new Employee();
92 new TestCase( SECTION,
93 "jim = new Employee(); jim.name",
98 new TestCase( SECTION,
99 "jim = new Employee(); jim.dept",
103 var sally = new Manager();
105 new TestCase( SECTION,
106 "sally = new Manager(); sally.name",
109 new TestCase( SECTION,
110 "sally = new Manager(); sally.dept",
114 new TestCase( SECTION,
115 "sally = new Manager(); sally.reports.length",
117 sally.reports.length );
119 new TestCase( SECTION,
120 "sally = new Manager(); typeof sally.reports",
122 typeof sally.reports );
124 var fred = new SalesPerson();
126 new TestCase( SECTION,
127 "fred = new SalesPerson(); fred.name",
131 new TestCase( SECTION,
132 "fred = new SalesPerson(); fred.dept",
136 new TestCase( SECTION,
137 "fred = new SalesPerson(); fred.quota",
141 new TestCase( SECTION,
142 "fred = new SalesPerson(); fred.projects.length",
144 fred.projects.length );
146 var jane = new Engineer();
148 new TestCase( SECTION,
149 "jane = new Engineer(); jane.name",
153 new TestCase( SECTION,
154 "jane = new Engineer(); jane.dept",
158 new TestCase( SECTION,
159 "jane = new Engineer(); jane.projects.length",
161 jane.projects.length );
163 new TestCase( SECTION,
164 "jane = new Engineer(); jane.machine",