1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/AsyncFunction/AsyncFunction-construct.js b/js/src/tests/test262/built-ins/AsyncFunction/AsyncFunction-construct.js
new file mode 100644
index 0000000000..dbae1415b4
--- /dev/null
+++ b/js/src/tests/test262/built-ins/AsyncFunction/AsyncFunction-construct.js
@@ -0,0 +1,33 @@
+// 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% creates functions with or without new and handles arguments
+  similarly to functions.
+---*/
+
+var AsyncFunction = async function foo() {}.constructor;
+var fn;
+
+fn = AsyncFunction("a", "await 1;");
+assert.sameValue(fn.length, 1, "length with 1 argument, call");
+
+fn = AsyncFunction("a,b", "await 1;");
+assert.sameValue(fn.length, 2, "length with 2 arguments in one, call");
+
+fn = AsyncFunction("a", "b", "await 1;");
+assert.sameValue(fn.length, 2, "length with 2 arguments, call");
+
+fn = new AsyncFunction("a", "await 1;");
+assert.sameValue(fn.length, 1, "length with 1 argument, construct");
+
+fn = new AsyncFunction("a,b", "await 1;");
+assert.sameValue(fn.length, 2, "length with 2 arguments in one, construct");
+
+fn = new AsyncFunction("a", "b", "await 1;");
+assert.sameValue(fn.length, 2, "length with 2 arguments, construct");
+
+reportCompare(0, 0);