1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/tests/non262/Tuple/prototype/indexOf/uses-internal-length.js b/js/src/tests/non262/Tuple/prototype/indexOf/uses-internal-length.js
new file mode 100644
index 0000000000..8c8cc1beb4
--- /dev/null
+++ b/js/src/tests/non262/Tuple/prototype/indexOf/uses-internal-length.js
@@ -0,0 +1,17 @@
+// |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 - 'length' is own data property that
+    overrides an inherited data property on an Tuple
+---*/
+
+var target = #[];
+
+Tuple.prototype.length = 0;
+
+assertEq(#[0, target].indexOf(target), 1, '#[0, target].indexOf(target)');
+
+reportCompare(0, 0);