1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-120.js b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-120.js
new file mode 100644
index 0000000000..b346edeaa2
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-120.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 15.2.3.6-4-120
+description: >
+    Object.defineProperty - 'O' is an Array, 'name' is the length
+    property of 'O', the [[Value]] field of 'desc' is absent, test
+    TypeError is thrown when updating the [[Configurable]] attribute
+    of the length property from false to true (15.4.5.1 step 3.a.i)
+---*/
+
+var arrObj = [];
+assert.throws(TypeError, function() {
+  Object.defineProperty(arrObj, "length", {
+    configurable: true
+  });
+});
+
+reportCompare(0, 0);