1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/types/object/S8.6.2_A8.js b/js/src/tests/test262/language/types/object/S8.6.2_A8.js
new file mode 100644
index 0000000000..2f93fedb2b
--- /dev/null
+++ b/js/src/tests/test262/language/types/object/S8.6.2_A8.js
@@ -0,0 +1,24 @@
+// Copyright 2011 Google Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 8.6.2_A8
+description: >
+    It should not be possible to change the [[Prototype]]  of a
+    non-extensible object
+---*/
+
+var x = Object.preventExtensions({});
+var y = {};
+try {
+  x.__proto__ = y;
+} catch (err) {
+  // As far as this test is concerned, we allow the above assignment
+  // to fail. This failure does violate the spec and should probably
+  // be tested separately.
+}
+if (Object.getPrototypeOf(x) !== Object.prototype) {
+  throw new Test262Error("Prototype of non-extensible object mutated");
+}
+
+reportCompare(0, 0);