1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/WeakSet/no-iterable.js b/js/src/tests/test262/built-ins/WeakSet/no-iterable.js
new file mode 100644
index 0000000000..6413080507
--- /dev/null
+++ b/js/src/tests/test262/built-ins/WeakSet/no-iterable.js
@@ -0,0 +1,26 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-weakset-iterable
+description: >
+  If the iterable argument is undefined, return new Weakset object.
+info: |
+  23.4.1.1 WeakSet ( [ iterable ] )
+
+  ...
+  5. If iterable is not present, let iterable be undefined.
+  6. If iterable is either undefined or null, let iter be undefined.
+  ...
+  8. If iter is undefined, return set.
+  ...
+---*/
+
+var a = new WeakSet();
+var b = new WeakSet(undefined);
+var c = new WeakSet(null);
+
+assert.sameValue(Object.getPrototypeOf(a), WeakSet.prototype);
+assert.sameValue(Object.getPrototypeOf(b), WeakSet.prototype);
+assert.sameValue(Object.getPrototypeOf(c), WeakSet.prototype);
+
+reportCompare(0, 0);