1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/tests/non262/regress/regress-452189.js b/js/src/tests/non262/regress/regress-452189.js
new file mode 100644
index 0000000000..811fe5fbdd
--- /dev/null
+++ b/js/src/tests/non262/regress/regress-452189.js
@@ -0,0 +1,23 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ * Contributor: Geoff Garen
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 452189;
+var summary = "Don't shadow a readonly or setter proto-property";
+var expect = "PASS";
+var actual = "FAIL";
+
+function c() {
+    this.x = 3;
+}
+
+
+new c;
+Object.prototype.__defineSetter__('x', function(){ actual = expect; })
+new c;
+
+reportCompare(expect, actual, summary);