diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/proxy/testDirectProxyConstruct2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/proxy/testDirectProxyConstruct2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,18 @@
+load(libdir + "asserts.js");
+/*
+ * Call the trap with the handler as the this value, the target as the first
+ * argument, and the original arguments as the third argument.
+ *
+ * Hooks that don't return an object must throw.
+ */
+var target = function () {};
+var handler = {
+    construct: function (target1, args) {
+        assertEq(this, handler);
+        assertEq(target1, target);
+        assertEq(args.length, 2);
+        assertEq(args[0], 2);
+        assertEq(args[1], 3);
+    }
+}
+assertThrowsInstanceOf(function () {new (new Proxy(target, handler))(2, 3)}, TypeError);