From 81ec43cca78c06f9fac05e39fb7e2a9bc4a29552 Mon Sep 17 00:00:00 2001
From: Sami Vaarala <sami.vaarala@iki.fi>
Date: Mon, 19 Dec 2016 02:00:14 +0200
Subject: [PATCH] Add object literal ancestor test

---
 ...t-dev-object-literal-offending-ancestor.js | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 tests/ecmascript/test-dev-object-literal-offending-ancestor.js

diff --git a/tests/ecmascript/test-dev-object-literal-offending-ancestor.js b/tests/ecmascript/test-dev-object-literal-offending-ancestor.js
new file mode 100644
index 00000000..2ee074a6
--- /dev/null
+++ b/tests/ecmascript/test-dev-object-literal-offending-ancestor.js
@@ -0,0 +1,51 @@
+/*
+ *  Properties inherited from Object.prototype must not prevent object
+ *  literal creation.  This ensures the internal code setting the object
+ *  properties doesn't accidentally invoke side effects, etc.
+ */
+
+/*===
+{"nonConfigurable":123,"nonWritable":234,"nonConfigurableNonWritable":345,"nonConfigurableSetter":456}
+===*/
+
+function test() {
+    Object.defineProperties(Object.prototype, {
+        nonConfigurable: {
+            value: 'ancestor',
+            writable: true,
+            enumerable: false,
+            configurable: false
+        },
+        nonWritable: {
+            value: 'ancestor',
+            writable: false,
+            enumerable: false,
+            configurable: true
+        },
+        nonConfigurableNonWritable: {
+            value: 'ancestor',
+            writable: false,
+            enumerable: false,
+            configurable: false
+        },
+        nonConfigurableSetter: {
+            set: function (v) { print('SETTER CALLED!'); },
+            enumerable: false,
+            configurable: false
+        }
+    });
+
+    var obj = {
+        nonConfigurable: 123,
+        nonWritable: 234,
+        nonConfigurableNonWritable: 345,
+        nonConfigurableSetter: 456
+    };
+    print(JSON.stringify(obj));
+}
+
+try {
+    test();
+} catch (e) {
+    print(e.stack || e);
+}