1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/WeakSet/length.js b/js/src/tests/test262/built-ins/WeakSet/length.js
new file mode 100644
index 0000000000..a34c33236d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/WeakSet/length.js
@@ -0,0 +1,16 @@
+// 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-properties-of-the-weakset-constructor
+description: >
+  The length property of the WeakSet constructor is 0.
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(WeakSet.length, 0, 'The value of `WeakSet.length` is `0`');
+
+verifyNotEnumerable(WeakSet, 'length');
+verifyNotWritable(WeakSet, 'length');
+verifyConfigurable(WeakSet, 'length');
+
+reportCompare(0, 0);