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 function bogusConstruct(target) { return 4; }

 function bogusConstructUndefined(target) { }

 var handler = { construct: bogusConstruct }

 function callable() {}

 var p = new Proxy(callable, handler);

 assertThrowsInstanceOf(function () { new p(); }, TypeError,

                        "[[Construct must throw if an object is not returned.");

 handler.construct = bogusConstructUndefined;

 assertThrowsInstanceOf(function () { new p(); }, TypeError,

                        "[[Construct must throw if an object is not returned.");

 if (typeof reportCompare === "function")

     reportCompare(0,0, "OK");