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   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
  53 function Employee () {
  54      this.name = "";
  55      this.dept = "general";
  56 }
  57 function Manager () {
  58      this.reports = [];
  59 }
  60 Manager.prototype = new Employee();
  61
  62 function WorkerBee () {
  63      this.projects = new Array();
  64 }
  65
  66 WorkerBee.prototype = new Employee();
  67
  68 function SalesPerson () {
  69     this.dept = "sales";
  70     this.quota = 100;
  71 }
  72 SalesPerson.prototype = new WorkerBee();
  73
  74 function Engineer () {
  75     this.dept = "engineering";
  76     this.machine = "";
  77 }
  78 Engineer.prototype = new WorkerBee();
  79
  80 function 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();