1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/getOwnPropertyDescriptor/resultdesc-is-not-configurable-targetdesc-is-configurable.js b/js/src/tests/test262/built-ins/Proxy/getOwnPropertyDescriptor/resultdesc-is-not-configurable-targetdesc-is-configurable.js
new file mode 100644
index 0000000000..50d8bdc080
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/getOwnPropertyDescriptor/resultdesc-is-not-configurable-targetdesc-is-configurable.js
@@ -0,0 +1,42 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.5
+description: >
+    Throws a TypeError exception if trap result is not configurable but target
+    property descriptor is configurable.
+info: |
+    [[GetOwnProperty]] (P)
+
+    ...
+    22. If resultDesc.[[Configurable]] is false, then
+        a. If targetDesc is undefined or targetDesc.[[Configurable]] is true,
+        then
+            i. Throw a TypeError exception.
+    ...
+features: [Proxy]
+---*/
+
+var target = {
+  bar: 1
+};
+
+var p = new Proxy(target, {
+  getOwnPropertyDescriptor: function(t, prop) {
+    var foo = {};
+
+    Object.defineProperty(foo, "bar", {
+      configurable: false,
+      enumerable: true,
+      value: 1
+    });
+
+    return Object.getOwnPropertyDescriptor(foo, prop);
+  }
+});
+
+assert.throws(TypeError, function() {
+  Object.getOwnPropertyDescriptor(p, "bar");
+});
+
+reportCompare(0, 0);