1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/get/not-same-value-configurable-false-writable-false-throws.js b/js/src/tests/test262/built-ins/Proxy/get/not-same-value-configurable-false-writable-false-throws.js
new file mode 100644
index 0000000000..790bf1997d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/get/not-same-value-configurable-false-writable-false-throws.js
@@ -0,0 +1,40 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.8
+description: >
+    Throws if proxy return has not the same value for a non-writable,
+    non-configurable property
+info: |
+    [[Get]] (P, Receiver)
+
+    13. If targetDesc is not undefined, then
+        a. If IsDataDescriptor(targetDesc) and targetDesc.[[Configurable]] is
+        false and targetDesc.[[Writable]] is false, then
+            i. If SameValue(trapResult, targetDesc.[[Value]]) is false, throw a
+            TypeError exception.
+features: [Proxy]
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+  get: function() {
+    return 2;
+  }
+});
+
+Object.defineProperty(target, 'attr', {
+  configurable: false,
+  writable: false,
+  value: 1
+});
+
+assert.throws(TypeError, function() {
+  p.attr;
+});
+
+assert.throws(TypeError, function() {
+  p['attr'];
+});
+
+reportCompare(0, 0);