The Tor Browser: js/src/tests/js1_3/extensions/proto

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 /**

     8    File Name:          proto_10.js

     9    Section:

    10    Description:        Determining Instance Relationships

    12    This tests Object Hierarchy and Inheritance, as described in the document

    13    Object Hierarchy and Inheritance in JavaScript, last modified on 12/18/97

    14    15:19:34 on http://devedge.netscape.com/.  Current URL:

    15    http://devedge.netscape.com/docs/manuals/communicator/jsobj/contents.htm

    17    This tests the syntax ObjectName.prototype = new PrototypeObject using the

    18    Employee example in the document referenced above.

    20    Author:             christine@netscape.com

    21    Date:               12 november 1997

    22 */

    24 var SECTION = "proto_10";

    25 var VERSION = "JS1_3";

    26 var TITLE   = "Determining Instance Relationships";

    28 startTest();

    29 writeHeaderToLog( SECTION + " "+ TITLE);

    31 function InstanceOf( object, constructor ) {

    32   while ( object != null ) {

    33     if ( object == constructor.prototype ) {

    34       return true;

    35     }

    36     object = object.__proto__;

    37   }

    38   return false;

    39 }

    40 function Employee ( name, dept ) {

    41   this.name = name || "";

    42   this.dept = dept || "general";

    43 }

    45 function Manager () {

    46   this.reports = [];

    47 }

    48 Manager.prototype = new Employee();

    50 function WorkerBee ( name, dept, projs ) {

    51   this.base = Employee;

    52   this.base( name, dept)

    53     this.projects = projs || new Array();

    54 }

    55 WorkerBee.prototype = new Employee();

    57 function SalesPerson () {

    58   this.dept = "sales";

    59   this.quota = 100;

    60 }

    61 SalesPerson.prototype = new WorkerBee();

    63 function Engineer ( name, projs, machine ) {

    64   this.base = WorkerBee;

    65   this.base( name, "engineering", projs )

    66     this.machine = machine || "";

    67 }

    68 Engineer.prototype = new WorkerBee();

    70 var pat = new Engineer();

    72 new TestCase( SECTION,

    73               "pat.__proto__ == Engineer.prototype",

    74               true,

    75               pat.__proto__ == Engineer.prototype );

    77 new TestCase( SECTION,

    78               "pat.__proto__.__proto__ == WorkerBee.prototype",

    79               true,

    80               pat.__proto__.__proto__ == WorkerBee.prototype );

    82 new TestCase( SECTION,

    83               "pat.__proto__.__proto__.__proto__ == Employee.prototype",

    84               true,

    85               pat.__proto__.__proto__.__proto__ == Employee.prototype );

    87 new TestCase( SECTION,

    88               "pat.__proto__.__proto__.__proto__.__proto__ == Object.prototype",

    89               true,

    90               pat.__proto__.__proto__.__proto__.__proto__ == Object.prototype );

    92 new TestCase( SECTION,

    93               "pat.__proto__.__proto__.__proto__.__proto__.__proto__ == null",

    94               true,

    95               pat.__proto__.__proto__.__proto__.__proto__.__proto__ == null );

    98 new TestCase( SECTION,

    99               "InstanceOf( pat, Engineer )",

   100               true,

   101               InstanceOf( pat, Engineer ) );

   103 new TestCase( SECTION,

   104               "InstanceOf( pat, WorkerBee )",

   105               true,

   106               InstanceOf( pat, WorkerBee ) );

   108 new TestCase( SECTION,

   109               "InstanceOf( pat, Employee )",

   110               true,

   111               InstanceOf( pat, Employee ) );

   113 new TestCase( SECTION,

   114               "InstanceOf( pat, Object )",

   115               true,

   116               InstanceOf( pat, Object ) );

   118 new TestCase( SECTION,

   119               "InstanceOf( pat, SalesPerson )",

   120               false,

   121               InstanceOf ( pat, SalesPerson ) );

   122 test();

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