From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 js/src/tests/ecma_6/Object/freeze-proxy.js | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 js/src/tests/ecma_6/Object/freeze-proxy.js

(limited to 'js/src/tests/ecma_6/Object/freeze-proxy.js')

diff --git a/js/src/tests/ecma_6/Object/freeze-proxy.js b/js/src/tests/ecma_6/Object/freeze-proxy.js
new file mode 100644
index 000000000..3d95a28d4
--- /dev/null
+++ b/js/src/tests/ecma_6/Object/freeze-proxy.js
@@ -0,0 +1,27 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function logProxy(object = {}, handler = {}) {
+    var log = [];
+    var proxy = new Proxy(object, new Proxy(handler, {
+        get(target, propertyKey, receiver) {
+            log.push(propertyKey);
+            return target[propertyKey];
+        }
+    }));
+    return {proxy, log};
+}
+
+// The order of operations is backwards when compared to ES6 draft rev 27
+// (2014 August 24), but see https://bugs.ecmascript.org/show_bug.cgi?id=3215
+// for an explanation on why the spec version is clearly wrong.
+
+var {proxy, log} = logProxy();
+Object.freeze(proxy);
+assertDeepEq(log, ["preventExtensions", "ownKeys"]);
+
+var {proxy, log} = logProxy();
+Object.freeze(Object.freeze(proxy));
+assertDeepEq(log, ["preventExtensions", "ownKeys", "preventExtensions", "ownKeys"]);
+
+reportCompare(0, 0);
-- 
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