michael@0: // Copyright 2009 the Sputnik authors.  All rights reserved.
michael@0: // This code is governed by the BSD license found in the LICENSE file.
michael@0: 
michael@0: /**
michael@0:  * Native ECMAScript objects have an internal property called [[Prototype]]. The value of this property is
michael@0:  * either null or an object and is used for implementing inheritance
michael@0:  *
michael@0:  * @path ch08/8.6/8.6.2/S8.6.2_A1.js
michael@0:  * @description Check [[Prototype]] property of object
michael@0:  */
michael@0: 
michael@0: //////////////////////////////////////////////////////////////////////////////
michael@0: //CHECK#1
michael@0: var __obj={};
michael@0: if (!Object.prototype.isPrototypeOf(__obj)){
michael@0:   $ERROR('#1: Native ECMAScript objects have an internal property called [[Prototype]]. ');
michael@0: };
michael@0: //
michael@0: //////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: //Establish proto (base) object
michael@0: /*function ProtoObj(){
michael@0:   
michael@0: };*/
michael@0: var protoObj={};
michael@0: //Establish foo object
michael@0: function FooObj(){};
michael@0: 
michael@0: //////////////////////////////////////////////////////////////////////////////
michael@0: //CHECK#2
michael@0: // Invoke instance of foo object
michael@0: var obj__= new FooObj;
michael@0: 
michael@0: if (!Object.prototype.isPrototypeOf(obj__)){
michael@0:   $ERROR('#2.1: protoObj={}; function FooObj(){}; var obj__= new FooObj; Object.prototype.isPrototypeOf(obj__) === true. Actual: ' + (Object.prototype.isPrototypeOf(obj__)));
michael@0: };
michael@0: 
michael@0: if (!FooObj.prototype.isPrototypeOf(obj__)){
michael@0:   $ERROR('#2.2: protoObj={}; function FooObj(){}; var obj__= new FooObj; FooObj.prototype.isPrototypeOf(obj__) === true. Actual: ' + (FooObj.prototype.isPrototypeOf(obj__)));
michael@0: };
michael@0: 
michael@0: if (protoObj.isPrototypeOf(obj__)){
michael@0:   $ERROR('#2.3: protoObj={}; function FooObj(){}; var obj__= new FooObj; protoObj.isPrototypeOf(obj__) === false. Actual: ' + (protoObj.isPrototypeOf(obj__)));
michael@0: };
michael@0: // Establish inheritance from proto object
michael@0: FooObj.prototype=protoObj;
michael@0: 
michael@0: if (protoObj.isPrototypeOf(obj__)){
michael@0:   $ERROR('#2.4: protoObj={}; function FooObj(){}; var obj__= new FooObj; FooObj.prototype=protoObj; protoObj.isPrototypeOf(obj__) === false. Actual: ' + (protoObj.isPrototypeOf(obj__)));
michael@0: };
michael@0: //
michael@0: //////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: //////////////////////////////////////////////////////////////////////////////
michael@0: //CHECK#3
michael@0: 
michael@0: // Invoke instance of foo object
michael@0: var __foo=new FooObj;
michael@0: 
michael@0: if (!Object.prototype.isPrototypeOf(__foo)){
michael@0:   $ERROR('#3.1: protoObj={}; function FooObj(){}; var obj__= new FooObj; FooObj.prototype=protoObj; var __foo=new FooObj; Object.prototype.isPrototypeOf(__foo) === true. Actual: ' + (Object.prototype.isPrototypeOf(__foo)));
michael@0: };
michael@0: 
michael@0: if (!FooObj.prototype.isPrototypeOf(__foo)){
michael@0:   $ERROR('#3.2: protoObj={}; function FooObj(){}; var obj__= new FooObj; FooObj.prototype=protoObj; var __foo=new FooObj; FooObj.prototype.isPrototypeOf(__foo) === true. Actual: ' + (FooObj.prototype.isPrototypeOf(__foo)));
michael@0: };
michael@0: 
michael@0: if (!protoObj.isPrototypeOf(__foo)){
michael@0:   $ERROR('#3.3: protoObj={}; function FooObj(){}; var obj__= new FooObj; FooObj.prototype=protoObj; var __foo=new FooObj; protoObj.isPrototypeOf(__foo) === true. Actual: ' + (protoObj.isPrototypeOf(__foo)));
michael@0: };
michael@0: //
michael@0: //////////////////////////////////////////////////////////////////////////////
michael@0: