michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 
michael@0: /**
michael@0:    File Name:          instanceof-002.js
michael@0:    Section:
michael@0:    Description:        Determining Instance Relationships
michael@0: 
michael@0:    This test is the same as js1_3/inherit/proto-002, except that it uses
michael@0:    the builtin instanceof operator rather than a user-defined function
michael@0:    called InstanceOf.
michael@0: 
michael@0:    This tests Object Hierarchy and Inheritance, as described in the document
michael@0:    Object Hierarchy and Inheritance in JavaScript, last modified on 12/18/97
michael@0:    15:19:34 on http://devedge.netscape.com/.  Current URL:
michael@0:    http://devedge.netscape.com/docs/manuals/communicator/jsobj/contents.htm
michael@0: 
michael@0:    This tests the syntax ObjectName.prototype = new PrototypeObject using the
michael@0:    Employee example in the document referenced above.
michael@0: 
michael@0:    Author:             christine@netscape.com
michael@0:    Date:               12 november 1997
michael@0: */
michael@0: //    onerror = err;
michael@0: 
michael@0: var SECTION = "instanceof-002";
michael@0: var VERSION = "ECMA_2";
michael@0: var TITLE   = "Determining Instance Relationships";
michael@0: 
michael@0: startTest();
michael@0: writeHeaderToLog( SECTION + " "+ TITLE);
michael@0: 
michael@0: function InstanceOf( object, constructor ) {
michael@0:   while ( object != null ) {
michael@0:     if ( object == constructor.prototype ) {
michael@0:       return true;
michael@0:     }
michael@0:     object = object.__proto__;
michael@0:   }
michael@0:   return false;
michael@0: }
michael@0: 
michael@0: function Employee ( name, dept ) {
michael@0:   this.name = name || "";
michael@0:   this.dept = dept || "general";
michael@0: }
michael@0: 
michael@0: function Manager () {
michael@0:   this.reports = [];
michael@0: }
michael@0: Manager.prototype = new Employee();
michael@0: 
michael@0: function WorkerBee ( name, dept, projs ) {
michael@0:   this.base = Employee;
michael@0:   this.base( name, dept)
michael@0:     this.projects = projs || new Array();
michael@0: }
michael@0: WorkerBee.prototype = new Employee();
michael@0: 
michael@0: function SalesPerson () {
michael@0:   this.dept = "sales";
michael@0:   this.quota = 100;
michael@0: }
michael@0: SalesPerson.prototype = new WorkerBee();
michael@0: 
michael@0: function Engineer ( name, projs, machine ) {
michael@0:   this.base = WorkerBee;
michael@0:   this.base( name, "engineering", projs )
michael@0:     this.machine = machine || "";
michael@0: }
michael@0: Engineer.prototype = new WorkerBee();
michael@0: 
michael@0: var pat = new Engineer();
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "pat.__proto__ == Engineer.prototype",
michael@0: 	      true,
michael@0: 	      pat.__proto__ == Engineer.prototype );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "pat.__proto__.__proto__ == WorkerBee.prototype",
michael@0: 	      true,
michael@0: 	      pat.__proto__.__proto__ == WorkerBee.prototype );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "pat.__proto__.__proto__.__proto__ == Employee.prototype",
michael@0: 	      true,
michael@0: 	      pat.__proto__.__proto__.__proto__ == Employee.prototype );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "pat.__proto__.__proto__.__proto__.__proto__ == Object.prototype",
michael@0: 	      true,
michael@0: 	      pat.__proto__.__proto__.__proto__.__proto__ == Object.prototype );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "pat.__proto__.__proto__.__proto__.__proto__.__proto__ == null",
michael@0: 	      true,
michael@0: 	      pat.__proto__.__proto__.__proto__.__proto__.__proto__ == null );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "pat instanceof Engineer",
michael@0: 	      true,
michael@0: 	      pat instanceof Engineer );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "pat instanceof WorkerBee )",
michael@0: 	      true,
michael@0: 	      pat instanceof WorkerBee );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "pat instanceof Employee )",
michael@0: 	      true,
michael@0: 	      pat instanceof Employee );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "pat instanceof Object )",
michael@0: 	      true,
michael@0: 	      pat instanceof Object );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "pat instanceof SalesPerson )",
michael@0: 	      false,
michael@0: 	      pat instanceof SalesPerson );
michael@0: test();