1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/AsyncGeneratorFunction/length.js b/js/src/tests/test262/built-ins/AsyncGeneratorFunction/length.js
new file mode 100644
index 0000000000..28b18ef3ae
--- /dev/null
+++ b/js/src/tests/test262/built-ins/AsyncGeneratorFunction/length.js
@@ -0,0 +1,21 @@
+// Copyright (C) 2018 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-asyncgeneratorfunction-length
+description: >
+  This is a data property with a value of 1. This property has the attributes
+  { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+includes: [propertyHelper.js]
+features: [async-iteration]
+---*/
+
+var AsyncGeneratorFunction = Object.getPrototypeOf(async function* () {}).constructor;
+
+verifyProperty(AsyncGeneratorFunction, "length", {
+  value: 1,
+  enumerable: false,
+  writable: false,
+  configurable: true,
+});
+
+reportCompare(0, 0);