1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Function/prototype/S15.3.3.1_A4.js b/js/src/tests/test262/built-ins/Function/prototype/S15.3.3.1_A4.js
new file mode 100644
index 0000000000..a5b8cb8e4f
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Function/prototype/S15.3.3.1_A4.js
@@ -0,0 +1,28 @@
+// Copyright 2011 Google Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Detects whether the value of a function's "prototype" property
+    as seen by normal object operations might deviate from the value
+    as seem by Object.getOwnPropertyDescriptor
+es5id: 15.3.3.1_A4
+description: >
+    Checks if reading a function's .prototype directly  agrees with
+    reading it via Object.getOwnPropertyDescriptor, after  having set
+    it by Object.defineProperty.
+---*/
+
+function foo() {}
+
+Object.defineProperty(foo, 'prototype', {
+  value: {}
+});
+
+assert.sameValue(
+  foo.prototype,
+  Object.getOwnPropertyDescriptor(foo, 'prototype').value,
+  'The value of foo.prototype is expected to equal the value of Object.getOwnPropertyDescriptor(foo, \'prototype\').value'
+);
+
+reportCompare(0, 0);