1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/prototype/toString/S15.10.6.4_A10.js b/js/src/tests/test262/built-ins/RegExp/prototype/toString/S15.10.6.4_A10.js
new file mode 100644
index 0000000000..34498afafc
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/prototype/toString/S15.10.6.4_A10.js
@@ -0,0 +1,30 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The RegExp.prototype.toString.length property has the attribute ReadOnly
+es5id: 15.10.6.4_A10
+description: >
+    Checking if varying the RegExp.prototype.toString.length property
+    fails
+includes: [propertyHelper.js]
+---*/
+assert.sameValue(
+  RegExp.prototype.toString.hasOwnProperty('length'),
+  true,
+  'RegExp.prototype.toString.hasOwnProperty(\'length\') must return true'
+);
+
+var __obj = RegExp.prototype.toString.length;
+
+verifyNotWritable(RegExp.prototype.toString, "length", null, function(){return "shifted";});
+
+assert.sameValue(
+  RegExp.prototype.toString.length,
+  __obj,
+  'The value of RegExp.prototype.toString.length is expected to equal the value of __obj'
+);
+
+// TODO: Convert to verifyProperty() format.
+
+reportCompare(0, 0);