diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/proxy/testDirectProxyGetOwnPropertyNames8.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/proxy/testDirectProxyGetOwnPropertyNames8.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+// Return the names returned by the trap
+var target = {};
+Object.defineProperty(target, 'foo', {
+    configurable: true
+});
+var names = Object.getOwnPropertyNames(new Proxy(target, {
+    getOwnPropertyNames : function (target) {
+        return [ 'bar' ];
+    }
+}));
+assertEq(names.length, 1);
+assertEq(names[0], 'bar');
+
+var names = Object.getOwnPropertyNames(new Proxy(Object.create(Object.create(null, {
+    a: {
+        enumerable: true,
+        configurable: true
+    },
+    b: {
+        enumerable: false,
+        configurable: true
+    }
+}), {
+    c: {
+        enumerable: true,
+        configurable: true
+    },
+    d: {
+        enumerable: false,
+        configurable: true
+    }
+}), {
+    getOwnPropertyNames: function (target) {
+        return [ 'c', 'e' ];
+    }
+}));
+assertEq(names.length, 2);
+assertEq(names[0], 'c');
+assertEq(names[1], 'e');