1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/AsyncFunction/AsyncFunction-length.js b/js/src/tests/test262/built-ins/AsyncFunction/AsyncFunction-length.js
new file mode 100644
index 0000000000..03a0119a4e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/AsyncFunction/AsyncFunction-length.js
@@ -0,0 +1,18 @@
+// 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-length
+description: >
+  %AsyncFunction% has a length of 1 with writable false, enumerable false, configurable true.
+includes: [propertyHelper.js]
+---*/
+
+var AsyncFunction = async function foo() {}.constructor;
+assert.sameValue(AsyncFunction.length, 1);
+verifyNotWritable(AsyncFunction, 'length');
+verifyNotEnumerable(AsyncFunction, 'length');
+verifyConfigurable(AsyncFunction, 'length');
+
+reportCompare(0, 0);