1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/tests/non262/Tuple/prototype/indexOf/fromIndex-undefined.js b/js/src/tests/non262/Tuple/prototype/indexOf/fromIndex-undefined.js
new file mode 100644
index 0000000000..054495a9d9
--- /dev/null
+++ b/js/src/tests/non262/Tuple/prototype/indexOf/fromIndex-undefined.js
@@ -0,0 +1,14 @@
+// |reftest| skip-if(!this.hasOwnProperty("Tuple"))
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Tuple.prototype.indexOf returns 0 if fromIndex is 'undefined'
+---*/
+
+var a = #[1, 2, 3];
+
+// undefined resolves to 0
+assertEq(a.indexOf(1, undefined), 0, 'a.indexOf(1,undefined)');
+
+reportCompare(0, 0);