1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-166.js b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-166.js
new file mode 100644
index 0000000000..7fcec19a4e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-166.js
@@ -0,0 +1,29 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 15.2.3.6-4-166
+description: >
+    Object.defineProperty - 'O' is an Array, 'name' is the length
+    property of 'O', the [[Value]] field of 'desc' is less than value
+    of  the length property,  test the [[Writable]] attribute of the
+    length property is set to true after deleting properties with
+    large index named if the [[Writable]] field of 'desc' is true
+    (15.4.5.1 step 3.h)
+---*/
+
+var arrObj = [0, 1];
+
+Object.defineProperty(arrObj, "length", {
+  value: 1,
+  writable: true
+});
+
+var indexDeleted = !arrObj.hasOwnProperty("1");
+
+arrObj.length = 10;
+
+assert(indexDeleted, 'indexDeleted !== true');
+assert.sameValue(arrObj.length, 10, 'arrObj.length');
+
+reportCompare(0, 0);