1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/WeakRef/proto.js b/js/src/tests/test262/built-ins/WeakRef/proto.js
new file mode 100644
index 0000000000..53861ad98d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/WeakRef/proto.js
@@ -0,0 +1,21 @@
+// |reftest| skip-if(!this.hasOwnProperty('WeakRef')) -- WeakRef is not enabled unconditionally
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-properties-of-the-weak-ref-constructor
+description: >
+  The prototype of WeakRef is Object.prototype
+info: |
+  The value of the [[Prototype]] internal slot of the WeakRef object is the
+  intrinsic object %FunctionPrototype%.
+features: [WeakRef]
+---*/
+
+assert.sameValue(
+  Object.getPrototypeOf(WeakRef),
+  Function.prototype,
+  'Object.getPrototypeOf(WeakRef) returns the value of `Function.prototype`'
+);
+
+reportCompare(0, 0);