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 function getTestCaseResult(expected, actual) {

       if (actual != expected)

               return Math.abs(actual - expected) <= 1E-10;

 }

 function InstanceOf(object, constructor) {

       while ( object != null )

               object = object.__proto__;

 }

 function WorkerBee () {}

 function Engineer () {}

 Engineer.prototype = new WorkerBee();

 var pat = new Engineer();

 getTestCaseResult(pat.__proto__.__proto__.__proto__.__proto__ == Object.prototype);

 getTestCaseResult(InstanceOf(pat, Engineer));

 evaluate("getTestCaseResult( Object.prototype.__proto__ );", { compileAndGo: true });