1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/AsyncFunction/AsyncFunction-is-subclass.js b/js/src/tests/test262/built-ins/AsyncFunction/AsyncFunction-is-subclass.js
new file mode 100644
index 0000000000..ea84be36e5
--- /dev/null
+++ b/js/src/tests/test262/built-ins/AsyncFunction/AsyncFunction-is-subclass.js
@@ -0,0 +1,16 @@
+// Copyright 2016 Microsoft, Inc. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+author: Brian Terlson <brian.terlson@microsoft.com>
+esid: sec-async-function-constructor
+description: >
+  %AsyncFunction% is a subclass of Function
+---*/
+async function foo() {};
+var AsyncFunction = foo.constructor;
+assert.sameValue(Object.getPrototypeOf(AsyncFunction), Function, "Prototype of constructor is Function");
+assert.sameValue(Object.getPrototypeOf(AsyncFunction.prototype), Function.prototype, "Prototype of constructor's prototype is Function.prototype");
+assert(foo instanceof Function, 'async function instance is instanceof Function');
+
+reportCompare(0, 0);