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 (function () { 

   assertEquals = function assertEquals(expected, found, name_opt) {  };

 })();

 function testOne(receiver, key, result) {

   for(var i = 0; i != 10; i++ ) {

     assertEquals(result, receiver[key]());

   }

 }

 function TypeOfThis() { return typeof this; }

 Number.prototype.type = TypeOfThis;

 String.prototype.type = TypeOfThis;

 Boolean.prototype.type = TypeOfThis;

 testOne(2.3, 'type', 'object');

 testOne('x', 'type', 'object');

 testOne(true, 'type', 'object');