1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/getPrototypeOf/extensible-target-return-handlerproto.js b/js/src/tests/test262/built-ins/Proxy/getPrototypeOf/extensible-target-return-handlerproto.js
new file mode 100644
index 0000000000..f9ba75c1b3
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/getPrototypeOf/extensible-target-return-handlerproto.js
@@ -0,0 +1,37 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.1
+description: >
+    Return trap result if it's an Object and target is extensible.
+info: |
+    [[GetPrototypeOf]] ( )
+
+    ...
+    1. Let handler be the value of the [[ProxyHandler]] internal slot of O.
+    ...
+    4. Let target be the value of the [[ProxyTarget]] internal slot of O.
+    5. Let trap be GetMethod(handler, "getPrototypeOf").
+    ...
+    8. Let handlerProto be Call(trap, handler, «target»).
+    ...
+    11. Let extensibleTarget be IsExtensible(target).
+    12. ReturnIfAbrupt(extensibleTarget).
+    13. If extensibleTarget is true, return handlerProto.
+    ...
+
+features: [Proxy]
+---*/
+
+var prot = {
+  foo: 1
+};
+var p = new Proxy({}, {
+  getPrototypeOf: function() {
+    return prot;
+  }
+});
+
+assert.sameValue(Object.getPrototypeOf(p), prot);
+
+reportCompare(0, 0);