1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/defineProperty/trap-is-undefined.js b/js/src/tests/test262/built-ins/Proxy/defineProperty/trap-is-undefined.js
new file mode 100644
index 0000000000..5a45b34631
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/defineProperty/trap-is-undefined.js
@@ -0,0 +1,45 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.6
+description: >
+    Return target.[[DefineOwnProperty]](P, Desc) if trap is undefined.
+info: |
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    8. If trap is undefined, then
+        a. Return target.[[DefineOwnProperty]](P, Desc).
+    ...
+includes: [propertyHelper.js]
+features: [Proxy]
+---*/
+
+var target = {};
+var p = new Proxy(target, {});
+
+Object.defineProperty(p, "attr", {
+  configurable: true,
+  enumerable: true,
+  writable: true,
+  value: 1
+});
+
+verifyEqualTo(target, "attr", 1);
+verifyWritable(target, "attr");
+verifyEnumerable(target, "attr");
+verifyConfigurable(target, "attr");
+
+Object.defineProperty(p, "attr", {
+  configurable: false,
+  enumerable: false,
+  writable: false,
+  value: 2
+});
+
+verifyEqualTo(target, "attr", 2);
+verifyNotWritable(target, "attr");
+verifyNotEnumerable(target, "attr");
+verifyNotConfigurable(target, "attr");
+
+reportCompare(0, 0);