From 940d8698d1faaaa6bdb3307713095e112d4f122c Mon Sep 17 00:00:00 2001
From: Jordan Harband <ljharb@gmail.com>
Date: Mon, 1 Feb 2016 16:57:31 -0800
Subject: [PATCH] Add test with duplicate keys.

Per https://github.com/tc39/test262/pull/484#issuecomment-178145781
---
 .../duplicate-keys.js                         | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 test/built-ins/Object/getOwnPropertyDescriptors/duplicate-keys.js

diff --git a/test/built-ins/Object/getOwnPropertyDescriptors/duplicate-keys.js b/test/built-ins/Object/getOwnPropertyDescriptors/duplicate-keys.js
new file mode 100644
index 0000000000..7960a2759f
--- /dev/null
+++ b/test/built-ins/Object/getOwnPropertyDescriptors/duplicate-keys.js
@@ -0,0 +1,31 @@
+// Copyright (C) 2016 Jordan Harband. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Object.getOwnPropertyDescriptors on a proxy with duplicate ownKeys should work
+esid: pending
+author: Jordan Harband
+features: [Proxy]
+---*/
+
+var i = 0;
+var descriptors = [
+  { enumerable: false, value: "A1", writable: true, configurable: true },
+  { enumerable: true, value: "A2", writable: true, configurable: true }
+];
+var log = '';
+var proxy = new Proxy({}, {
+  ownKeys() {
+    log += 'ownKeys|';
+    return ['DUPLICATE', 'DUPLICATE', 'DUPLICATE'];
+  },
+  getOwnPropertyDescriptor(t, name) {
+    log += 'getOwnPropertyDescriptor:' + name + '|';
+    return descriptors[i++];
+  }
+});
+
+var result = Object.getOwnPropertyDescriptors(proxy);
+assert.sameValue(result.hasOwnProperty('DUPLICATE'), true);
+assert.sameValue(result.DUPLICATE, undefined);
+assert.sameValue(log, 'ownKeys|getOwnPropertyDescriptor:DUPLICATE|getOwnPropertyDescriptor:DUPLICATE|getOwnPropertyDescriptor:DUPLICATE');