diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/proxy/surfaces.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/proxy/surfaces.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+// Check superficial properties of the Proxy constructor.
+
+var desc = Object.getOwnPropertyDescriptor(this, "Proxy");
+assertEq(desc.configurable, true);
+assertEq(desc.enumerable, false);
+assertEq(desc.writable, true);
+assertEq(desc.value, Proxy);
+
+assertEq(typeof Proxy, "function");
+assertEq(Object.getPrototypeOf(Proxy), Function.prototype);
+assertEq(Proxy.length, 2);
+
+// Proxy is a constructor but has no .prototype property.
+assertEq(Proxy.hasOwnProperty("prototype"), false);