1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/WeakSet/shell.js b/js/src/tests/test262/built-ins/WeakSet/shell.js
new file mode 100644
index 0000000000..54371b7789
--- /dev/null
+++ b/js/src/tests/test262/built-ins/WeakSet/shell.js
@@ -0,0 +1,19 @@
+// GENERATED, DO NOT EDIT
+// file: isConstructor.js
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: |
+    Test if a given function is a constructor function.
+defines: [isConstructor]
+---*/
+
+function isConstructor(f) {
+    try {
+        Reflect.construct(function(){}, [], f);
+    } catch (e) {
+        return false;
+    }
+    return true;
+}