1 files changed, 56 insertions, 0 deletions
diff --git a/js/src/tests/non262/object/proto-property-change-writability-set.js b/js/src/tests/non262/object/proto-property-change-writability-set.js
new file mode 100644
index 0000000000..d81f844e93
--- /dev/null
+++ b/js/src/tests/non262/object/proto-property-change-writability-set.js
@@ -0,0 +1,56 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ * Contributors:
+ *   Gary Kwong
+ *   Jeff Walden
+ *   Jason Orendorff
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 713944;
+var summary =
+  "Don't assert anything about a shape from the property cache until it's " +
+  "known the cache entry matches";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var accDesc = { set: function() {} };
+var dataDesc = { value: 3 };
+
+function f()
+{
+  propertyIsEnumerable = {};
+}
+function g()
+{
+  propertyIsEnumerable = {};
+}
+
+Object.defineProperty(Object.prototype, "propertyIsEnumerable", accDesc);
+f();
+Object.defineProperty(Object.prototype, "propertyIsEnumerable", dataDesc);
+assertEq(propertyIsEnumerable, 3);
+f();
+assertEq(propertyIsEnumerable, 3);
+g();
+assertEq(propertyIsEnumerable, 3);
+
+
+
+var a = { p1: 1, p2: 2 };
+var b = Object.create(a);
+Object.defineProperty(a, "p1", {set: function () {}});
+for (var i = 0; i < 2; i++)
+{
+  b.p1 = {};
+  Object.defineProperty(a, "p1", {value: 3});
+}
+assertEq(b.p1, 3);
+assertEq(a.p1, 3);
+
+reportCompare(true, true);