1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/js1_6/Array/regress-415540.js b/js/src/tests/js1_6/Array/regress-415540.js
new file mode 100644
index 000000000..0e2b9726a
--- /dev/null
+++ b/js/src/tests/js1_6/Array/regress-415540.js
@@ -0,0 +1,21 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 415540;
+var summary = 'Array.push'
+var actual = '';
+var expect = '';
+
+var Constr = function() {};
+Constr.prototype = [];
+var c = new Constr();
+c.push(5);
+c.push(6);
+var actual = Array.push(c,7);
+reportCompare(3, actual, "result of Array.push is length");
+reportCompare(5, c[0], "contents of c[0]");
+reportCompare(6, c[1], "contents of c[1]");
+reportCompare(7, c[2], "contents of c[2]");